The following discussion and analysis of our financial condition and results of
operations should be read in conjunction with our unaudited condensed
consolidated financial statements and the related notes to those statements
included elsewhere in this Quarterly Report on Form 10-Q and the audited
consolidated financial statements and notes thereto included in Part II, Item 8
of our Annual Report on Form 10-K for the fiscal year ended December 31, 2021.
In addition to historical financial information, the following discussion and
analysis contains forward-looking statements that involve risks, uncertainties
and assumptions. Our actual results and timing of selected events may differ
materially from those anticipated in these forward-looking statements as a
result of many factors, including those discussed in Item 1A. Risk Factors in
our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 and
in the filings we make with the Securities and Exchange Commission (the "SEC")
from time to time. See "Cautionary Note Regarding Forward-Looking Statements."

Overview



We are a commercial-stage medical technology company focused on saving teeth
from tooth decay, the most prevalent chronic disease globally. We have developed
the GentleWave System, an innovative technology platform designed to treat tooth
decay by cleaning and disinfecting the microscopic spaces within teeth without
the need to remove tooth structure. Our initial focus is on leveraging the
GentleWave System, the first and only FDA-cleared system for root canal therapy
that employs a sterilized, single-use procedure instrument ("PI"), to transform
root canal therapy ("RCT"), by addressing the limitations of conventional
methods. The system utilizes our proprietary mechanism of action, which combines
procedure fluid optimization, broad-spectrum acoustic energy and advanced fluid
dynamics, to debride and disinfect deep regions of the complex root canal system
in a less invasive procedure that preserves tooth structure. The clinical
benefits of our GentleWave System when compared to conventional methods of RCT
include improved clinical outcomes, such as superior cleaning that is
independent of root canal complexity and tooth anatomy, high and rapid rates of
healing and minimal to no post-operative pain. In addition to the clinical
benefits, the GentleWave System can improve the workflow and economics of dental
practices. We began scaling commercialization of our current technology in 2017
and are focused on establishing the GentleWave Procedure as the standard of care
for RCT.

RCT is a treatment for late-stage tooth decay that aims to save the patient's
tooth instead of removing it. Conventional methods of RCT depend primarily on
instruments to manually scrape and remove tooth structure and open canals inside
the tooth in order to remove and irrigate infected tissue. We believe that
conventional methods of RCT do not adequately clean and disinfect the entire
root canal system, primarily due to the complexity and uniqueness of each root
canal and the inability of current endodontic technologies to effectively reach
the microscopic spaces within the tooth. Conventional methods of RCT also
generally require extensive use of instrumentation within the root canal system,
which can result in the removal of substantial tooth structure, weaken the tooth
and impact its long-term survival. This lack of sufficient cleaning and removal
of substantial tooth structure can result in poor clinical outcomes, such as
high treatment failure rates and significant post-operative pain. In addition,
other limitations of conventional methods of performing RCT include: a frequent
need for multiple visits to complete the procedure, a lack of standardized
procedure protocols and a complex procedure that can be difficult to perform.

Our GentleWave System represents an innovative technology platform and approach
to RCT. The GentleWave System is a Class II device and has received 510(k)
clearance from the FDA. The key components of our GentleWave System are a
sophisticated and mobile console and a pre-packaged, sterilized, single-use PI.
The GentleWave System utilizes a proprietary mechanism of action that is
designed to combine procedure fluid optimization, broad-spectrum acoustic energy
and advanced fluid dynamics to efficiently and effectively reach microscopic
spaces within teeth and dissolve and remove tissue and bacteria with minimal or
no removal of tooth structure. We have invested significant resources in
establishing a broad intellectual property portfolio that protects the
GentleWave Procedure and its unique mechanism of action, as well as future
capabilities under development. We believe our GentleWave System transforms the
patient and dental practitioner experience and addresses many of the limitations
of conventional RCT.

We are committed to continuing to generate evidence to support the clinical
benefits of the GentleWave System. These benefits have been demonstrated in-vivo
and in-vitro across two prospective, multi-center clinical studies, in
real-world, clinical practice and in over 30 peer-reviewed journal publications,
including seven independent publications and more than 23 publications by our
consultants or sponsored or funded by us. For example, results from our PURE
study demonstrated a treatment success rate of 97% at the six- and 12-month
follow-ups for patients treated using the GentleWave System.

As of September 30, 2022, we had an installed base of approximately 935
GentleWave Systems that had performed more than 950,000 GentleWave patient
procedures since commercialization. Following the launch of CleanFlow PI in
April 2022, which is designed to work with our existing GentleWave system and
has received 510(k) clearance from the FDA, in October 2022, we announced the
release of our GentleWave G4 System, the next generation of our innovative
technology platform designed for an optimized doctor and patient experience to
treat tooth decay.

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In the United States and Canada, our direct sales force markets and sells the
GentleWave System to dental practitioners performing a high volume of root
canals as part of their practice. Our commercial strategy and sales model
involves a focus on driving adoption of our GentleWave System by increasing our
installed base of consoles and maximizing recurring PI revenue through increased
utilization. We have been and will continue to expand the size of our sales and
clinician support teams to support our efforts of driving adoption and
utilization of the GentleWave System. We plan to pursue marketing authorizations
and similar certifications to enable marketing and engage in other market access
initiatives over time in attractive international regions in which we see
significant potential opportunity.

As of September 30, 2022, we had cash and cash equivalents and short-term
investments of $105.6 million, an accumulated deficit of $358.2 million, and
$40.0 million in principal outstanding under our term loan facility. For the
nine months ended September 30, 2022, we generated revenue of $29.4 million and
incurred a net loss of $46.2 million, compared to revenue of $23.3 million and a
net loss of $34.8 million for the nine months ended September 30, 2021.

We expect to continue to incur net losses for the next several years. We expect
to continue to make significant investments in our sales and marketing
organization by increasing the number of U.S. and Canadian sales
representatives, expanding our international marketing programs and expanding
direct to clinician digital marketing efforts to help facilitate further
adoption among existing accounts and to broaden awareness and adoption of our
products to new clinicians. We also expect to continue to make investments in
research and development, regulatory affairs and clinical studies to develop
future generations of our GentleWave products, support regulatory submissions
and demonstrate the clinical efficacy of our new products. Moreover, we are
incurring additional expenses as a result of operating as a public company,
including legal, accounting, insurance, exchange listing and SEC compliance,
investor relations, and other administrative and professional services expenses.
As a result of these expenses, we may in the future require additional financing
to fund our operations and planned growth.

We believe that our cash and cash equivalents and short-term investments,
together with anticipated revenue and available debt financing arrangements,
will be sufficient to meet our capital requirements and fund our operations
through at least the next 12 months from the date of this Quarterly Report on
Form 10-Q. We may also seek additional financing opportunistically. We may seek
to raise any additional capital by entering into partnerships or through public
or private equity offerings or debt financings, credit or loan facilities or a
combination of one or more of these funding sources. If we raise additional
funds by issuing equity securities, our stockholders may experience dilution.

Factors Affecting Our Performance and Key Business Metrics



We believe there are several important factors that impact our operating
performance and results of operations. We also regularly review several
operating and financial metrics to evaluate our business, measure our
performance, identify trends affecting our business, formulate our business plan
and make strategic decisions. We believe the following factors and key business
metrics are important indicators of our performance:


Installed base of GentleWave Systems: In the United States and Canada, we are
initially focused on driving adoption of the GentleWave System among dental
practitioners, with an initial focus on RCT. Our sales force leverages
third-party data of root canal procedure volumes by practitioner, in order to
enable us to efficiently and effectively identify target accounts. We believe
that our current targeting strategy identifies a well-defined customer base that
is accessible by our direct sales organization.


System utilization: Our revenue is significantly impacted by the utilization of
our GentleWave System. Our objective is to establish the GentleWave Procedure as
the standard of care for RCT. To accomplish this, we plan to continue expanding
our team of consumable sales representatives who are partnering with our
customers to provide onboarding, onsite training and continuing education, to
enhance practice efficiency and clinical workflow and to drive patient referral
volumes. We expect the CleanFlow PI to further increase utilization over time.


Gross margins: Our results of operations depend, in part, on our ability to
increase our gross margins by more effectively managing our costs to produce our
GentleWave console and single-use PIs, and to scale our manufacturing operations
efficiently. We expect to realize operating leverage through increased scale
efficiencies as our commercial operations grow. We are undertaking continuous
margin improvement programs, including implementing lean manufacturing methods
and working with our suppliers to reduce material costs. We have also executed
several product design improvements to reduce product cost. For example, we
expect the CleanFlow PI to have a positive impact on the gross margin profile of
our single-use PIs. We anticipate that the combination of these strategies will
drive margin improvement.

Commercial organization: As of September 30, 2022, our sales and customer support team consisted of approximately 87 employees. We intend to continue to make significant investments in our commercial organization by increasing the


                                       27
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number of employees in our commercial organization, as well as by expanding our
marketing and training programs, to help facilitate further adoption of our
products among existing and new customer accounts. Successfully recruiting and
training a sufficient number of sales and customer support employees is required
to achieve growth at the rate we expect. The rate at which we grow our
commercial organization and the speed at which newly hired personnel become
effective can impact our revenue growth and our costs incurred in anticipation
of such growth.

COVID-19 Pandemic

The COVID-19 pandemic has negatively impacted our operations, revenue and
overall financial condition, and may negatively impact our operations, revenue,
and overall financial condition in the future if new and more transmissible
vaccine-resistant variants emerge. Our customers, including endodontists, have
experienced significant financial hardship and some of them may never fully
recover. We also experienced disruptions, and may experience future disruptions,
including: delays in capital and clinical sales representatives becoming fully
trained and productive; difficulties and delays in dental practitioner outreach
and training dental practitioners to use our GentleWave System; travel
restrictions; delays in initiation, enrollment and follow-ups of our clinical
studies; challenges with maintaining adequate supply from third-party
manufacturers of components and finished goods and distribution providers; and
access to dental practitioners for training and case support. The COVID-19
pandemic also resulted in, and may in the future result in, significant
disruption to the global financial markets, reducing our ability to access
capital, which could in the future negatively affect our liquidity.

We have mitigated the disruptions in our supply of certain materials used in the
final assembly and packaging of our PIs encountered in the first quarter of
2022. We regularly explore different opportunities to implement alternative
secondary source suppliers and packaging methods in order to ensure cost
effectiveness and that we are able to source sufficient components and materials
to manufacture our products. In the event that we are unable to implement new
packaging methods or source sufficient components and materials from our current
or future suppliers to manufacture enough of our products to satisfy demand, we
may need to cease or slow down production and our business operations and
financial condition may be materially harmed. Additionally, costs of certain
materials and services have increased due to the increased demand and supply
shortage. If such inflationary pressures in costs persist, we may not be able to
quickly or easily adjust pricing, reduce costs, or implement countermeasures,
all of which would adversely impact our business, financial condition, results
of operations, or cash flows.

The duration and ultimate economic impact of the COVID-19 pandemic on our
business remains uncertain at this time. We expect that any future restrictions
on dental procedures, as a result of COVID-19 or the emergence of any vaccine
resistant variant, and other related issues including supply chain disruptions,
would have a negative impact on our operations, revenue and overall financial
condition.

Components of Our Results of Operations

Revenue



Our revenue consists primarily of product revenue and software revenue. We
generate product revenue on the capital sale of our GentleWave console and
recurring sales of our single-use PIs and accessories. To a lesser extent, we
also derive product revenue from service and repair and extended warranty
contracts with our existing customers. Software revenue relates to fees we
receive for licensing our TDO practice management tool to dental practitioners.
We expect our product revenue to increase in absolute dollars as we increase
adoption and utilization of our GentleWave System, though revenues may fluctuate
from quarter to quarter.

Cost of Sales and Gross Margin



Cost of sales consists primarily of manufacturing overhead costs, material
costs, and direct labor to produce our products, warranty, provisions for
slow-moving and obsolete inventory, and other direct costs such as shipping and
software support. A significant portion of our cost of sales currently consists
of manufacturing overhead costs. These overhead costs include personnel
compensation, including stock-based compensation expenses, facilities, the cost
of production equipment and operations supervision, quality control, material
procurement and intangible assets amortization. We provide a two-year warranty
on capital equipment upon initial sale, and we establish a reserve for warranty
repairs based on historical warranty repair costs incurred. Provisions for
warranty obligations, which are included in cost of sales, are provided for at
the time of shipment. We expect our cost of sales to increase in absolute
dollars for the foreseeable future primarily as, and to the extent, our revenue
grows, partially offset by lower unit product costs, though it may fluctuate
from period to period.

We calculate gross margin as gross profit divided by revenue. Our gross margin
has been and will continue to be affected by a variety of factors, primarily,
product mix and the resulting average selling prices, production volumes,
manufacturing costs and product

                                       28
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yields, and the implementation of cost reduction strategies. Our software gross
margin is generally higher than our product gross margin. As a result of these
factors, we expect gross margin may fluctuate from period to period. We are
engaged in various efforts to improve our gross margin by reducing unit product
costs to the extent our production volumes increase, as well as through product
design improvements, reducing material costs through negotiations with suppliers
and optimizing the manufacturing process and reducing the costs to service our
installed base.

Operating Expenses

Selling, general and administrative



Selling, general and administrative ("SG&A") expenses consist primarily of
personnel compensation, including stock-based compensation, related to selling,
marketing, professional education, administration, finance, information
technology, legal, and human resource functions. SG&A expenses also include
commissions, training, travel expenses, promotional activities, conferences,
trade shows, professional services fees, audit fees, legal fees, insurance costs
and general corporate expenses including allocated facilities-related expenses.
We expect our SG&A expenses to increase in absolute dollars for the foreseeable
future as we expand our commercial infrastructure and incur additional fees
associated with operating as a public company, including legal, accounting,
insurance, exchange listing and SEC compliance, investor relations, and other
administrative and professional services expenses, though it may fluctuate from
period to period. However, over time, we expect our SG&A expenses to decrease as
a percentage of revenue.

Research and development

Research and development ("R&D") expenses consist primarily of costs incurred
for proprietary R&D programs, and include costs of product engineering, product
development, regulatory affairs, consulting services, materials, and
depreciation, as well as other costs associated with products and technologies
being developed. These expenses include employee and non-employee compensation,
including stock-based compensation, supplies, materials, consulting, related
travel expenses and facilities expenses. We expect our R&D expenses to moderate
in absolute dollars for the foreseeable future as we continue to develop,
enhance, and commercialize new products and technologies. However, we expect our
R&D expenses as a percentage of revenue to vary over time depending on the level
and timing of initiating new product development efforts.

Changes in fair value of contingent earnout



Changes in fair value of contingent earnout consists of fair value adjustments
from our contingent earnout liabilities recorded in connection with the 2018
acquisition of TDO. We record a liability related to the contingent earnout
provisions, which are based on actual and estimated annual sales of licenses and
units, as defined in the stock purchase agreement, for each of the years ended
December 31, 2021 and 2020. The contingent earnout period ended December 31,
2021 and final payment was made in February 2022.

Other Income (Expense), Net



Other income (expense), net, consists primarily of interest expense under our
outstanding term loan, investment income, and the remeasurement of our preferred
stock warrant liabilities and our forward obligation recorded in connection with
an asset acquisition. On completion of our IPO, all of the outstanding warrants
to purchase shares of convertible preferred stock were revalued and converted
into warrants to purchase shares of common stock and the warrants liability was
reclassified into stockholders' equity. As a result, we are no longer required
to remeasure the fair value of the common stock warrants at each reporting
period. On completion of our IPO, the forward obligation was settled by the
issuance of shares of common stock and will no longer require remeasurement at
each reporting period.

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Results of Operations

Comparison of the Three and Nine Months Ended September 30, 2022 and 2021



The following table shows our results of operations for the three months ended
September 30, 2022 and 2021, together with the dollar and percentage change in
those items:

                                             Three Months Ended                        Change
                                      September 30,       September 30,
                                          2022                2021               $               %
                                                     (in thousands, except percentages)
Revenue                              $         9,846     $         7,887          1,959              25 %
Cost of sales                                  7,528               5,838          1,690              29 %
Gross profit                                   2,318               2,049            269              13 %
Gross margin                                      24 %                26 %
Operating expenses:
Selling, general and
administrative                                12,586               8,495          4,091              48 %
Research and development                       4,328               4,633           (305 )            (7 )%
Change in fair value of contingent
earnout                                            -                  19            (19 )          (100 )%
Total operating expenses                      16,914              13,147          3,767              29 %
Loss from operations                         (14,596 )           (11,098 )       (3,498 )            32 %
Other expense, net:
Interest and financing costs, net               (943 )            (1,076 )          133             (12 )%
Change in fair value of warrant
liabilities                                        -                (159 )          159            (100 )%
Change in fair value of forward
obligation                                         -                (400 )          400            (100 )%
Loss before income tax benefit               (15,539 )           (12,733 )       (2,806 )            22 %
Net loss                             $       (15,539 )   $       (12,733 )       (2,806 )            22 %


The following table shows our results of operations for the nine months ended
September 30, 2022 and 2021, together with the dollar and percentage change in
those items:

                                              Nine Months Ended                        Change
                                      September 30,       September 30,
                                          2022                2021               $               %
                                                     (in thousands, except percentages)
Revenue                              $        29,426     $        23,306          6,120              26 %
Cost of sales                                 22,276              17,422          4,854              28 %
Gross profit                                   7,150               5,884          1,266              22 %
Gross margin                                      24 %                25 %
Operating expenses:
Selling, general and
administrative                                37,393              22,400         14,993              67 %
Research and development                      13,196              14,310         (1,114 )            (8 )%
Change in fair value of contingent
earnout                                            -                  12            (12 )          (100 )%
Total operating expenses                      50,589              36,722         13,867              38 %
Loss from operations                         (43,439 )           (30,838 )      (12,601 )            41 %
Other expense, net:
Interest and financing costs, net             (2,759 )            (3,224 )          465             (14 )%
Change in fair value of warrant
liabilities                                        -                (176 )          176            (100 )%
Change in fair value of forward
obligation                                         -                (550 )          550            (100 )%
Loss before income tax expense               (46,198 )           (34,788 )      (11,410 )            33 %
Net loss                             $       (46,198 )   $       (34,788 )      (11,410 )            33 %




                                       30

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Revenue

Our breakdown of revenue for the three and nine months ended September 30, 2022 and 2021, respectively, is summarized below:



                           Three Months Ended                   Change
                    September 30,       September 30,
                        2022                2021              $         %
                              (in thousands, except percentages)
Product revenue    $         7,795     $         6,186       1,609       26 %
Software revenue             2,051               1,701         350       21 %
Total revenue      $         9,846     $         7,887       1,959       25 %

                            Nine Months Ended                   Change
                    September 30,       September 30,
                        2022                2022              $         %
                              (in thousands, except percentages)
Product revenue    $        23,440     $        18,166       5,274       29 %
Software revenue             5,986               5,140         846       16 %
Total revenue      $        29,426     $        23,306       6,120       26 %


Revenue increased $2.0 million, or 25%, for the three months ended September 30,
2022 compared to the prior year period, primarily driven by growth in sales
volumes. For the three months ended September 30, 2022, we generated $2.1
million and $4.8 million from the sale of GentleWave consoles and PIs,
respectively, compared to $1.8 million and $3.7 million for the three months
ended September 30, 2021, respectively. There were no significant changes in the
Software segment revenue.

Revenue increased $6.1 million, or 26%, for the nine months ended September 30,
2022 compared to the prior year period, primarily driven by growth in sales
volumes which generated an increase in revenue of approximately $3.9 million and
an increase in average selling price of PIs of approximately 9%. For the nine
months ended September 30, 2022, we generated $6.9 million and $13.9 million
from the sale of GentleWave consoles and PIs, respectively, compared to $5.2
million and $10.7 million for the nine months ended September 30, 2021,
respectively. There were no significant changes in the Software segment revenue.

Cost of sales and gross margin



Cost of sales increased $1.7 million, or 29%, and $4.9 million, or 28%, for the
three and nine months ended September 30, 2022, respectively, compared to the
prior year periods, primarily due to higher sales volume. During the three and
nine months ended September 30, 2022, cost of sales on per unit basis also
slightly increased on consoles, partially offset by decline in cost relating to
PIs. Additionally, console service cost increased and we experienced operational
inefficiencies due to disruption in the supply chain in the 2022 period. There
were no significant changes in the Software segment cost of sales.

Gross margin decreased 2% and 1% for the three and nine months ended September
30, 2022, respectively, compared to the prior year periods, primarily due to
higher cost of sales on a per unit basis and increase in service cost as
aforementioned.

Selling, general and administrative expenses



SG&A expenses increased $4.1 million, or 48%, and $15.0 million, or 67%, for the
three and nine months ended September 30, 2022, respectively, compared to the
prior year periods, primarily driven by changes in our Product segment due to
higher employee-related compensation and benefit expenses, including stock-based
compensation, as a result of headcount increase due to the expansion of our
commercial infrastructure and increase in sales, as well as additional expenses
and fees associated with operating as a public company, including legal,
accounting, insurance, exchange listing and SEC compliance, investor relations,
and other administrative and professional services expenses. There were no
significant changes in the Software segment selling, general and administrative
expenses.

Research and development expenses



R&D expenses for both the three and nine months ended September 30, 2022 were
moderate compared to the prior year periods, mainly reflecting lower spending on
product development and lower salaries resulting from lower headcount. There
were no significant changes in any major components of the R&D expenses.

                                       31
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Change in fair value of contingent earnout



There was no change in fair value of contingent earnout recorded for either the
three or nine months ended September 30, 2022 as the contingent earnout period
ended December 31, 2021 and final payment was made in February 2022.

Loss from operations



Loss from operations increased $3.5 million for the three months ended September
30, 2022 compared to the prior year period, primarily due to increases in
operating expenses in the Product segment, partially offset by higher sales in
the Product segment and higher sales and gross profit in the Software segment.
The Software segment recorded income from operations of $0.5 million and $0.2
million for the three months ended September 30, 2022 and 2021, respectively.

Loss from operations increased $12.6 million for the nine months ended September
30, 2022 compared to the prior year period, primarily due to increases in
operating expenses in the Product segment, partially offset by higher sales and
gross profit in the Product and Software segments. The Software segment recorded
income from operations of $1.2 million and $0.6 million for the three months
ended September 30, 2022 and 2021, respectively.

Other expense, net



Total other expense net for both three and nine months ended September 30, 2022
slightly decreased compared to the prior year periods, mainly due to interest
income from our short-term investments.

Liquidity and Capital Resources

Sources of liquidity

We have incurred significant operating losses and negative cash flows from operations since our inception, and we anticipate that we will continue to incur net losses for the next several years.



On September 27, 2022, we completed a private placement (the "Private
Placement"), issuing an aggregate of 23.0 million shares of our common stock at
a purchase price of $0.95 per share and pre-funded warrants to purchase an
aggregate of 43.3 million shares of our common stock at a purchase price of
$0.949 per pre-funded warrant. The pre-funded warrants have an exercise price of
$0.001 per share of common stock, are immediately exercisable and will remain
exercisable until exercised in full. The aggregate net proceeds from the Private
Placement, after deducting placement agent fees and other offering expenses,
were $59.1 million.

As of September 30, 2022, we had cash and cash equivalents and short-term
investments of $105.6 million, an accumulated deficit of $358.2 million, and
$40.0 million in principal outstanding under our term loan facility. As of
September 30, 2021, we had cash and cash equivalents of $13.7 million and an
accumulated deficit of $298.3 million. For the three months ended September 30,
2022 and 2021, our net losses from operations were $15.5 million and $12.7
million, respectively. For the nine months ended September 30, 2022 and 2021,
our net losses from operations were $46.2 million and $34.8 million,
respectively, and our net cash used in operating activities was $46.8 million
and $33.9 million, respectively.

Prior to our initial public offering ("IPO"), we raised a total of $281.3
million in net proceeds from private placements of convertible preferred stock,
and approximately $4.2 million from the issuance of common stock and stock
option exercises. On November 2, 2021, we completed our IPO of 7.8 million
shares of our common stock at a public offering price of $12.00 per share. The
aggregate net proceeds from the offering, after deducting underwriting discounts
and commissions and other offering expenses, were approximately $83.8 million.

Funding requirements



We expect our operating expenses to increase for the foreseeable future as we
continue to invest in expanding our sales and marketing infrastructure programs
to both drive and support anticipated sales growth and product development. In
addition, we expect our general and administrative expenses to increase for the
foreseeable future as we hire personnel and expand our infrastructure to drive
and support the anticipated growth in our organization. We will also incur
additional expenses as we increase the size of our administrative function to
support the growth of our business and operations as a public company. The
timing and amount of our operating expenditures will depend on many factors,
including:


the degree and rate of market acceptance of our current and future products and
the GentleWave Procedure;
•
the scope and timing of investment in our sales force and expansion of our
commercial organization;

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the impact of the ongoing global COVID-19 pandemic, or any other pandemic,
epidemic or infectious disease outbreak, on our business;
•
the cost of our research and development activities;
•
the cost and timing of additional regulatory clearances or approvals;
•
the costs associated with any product recall that may occur;
•
the costs associated with the manufacturing of our products at increased
production levels;
•
the costs of attaining, defending and enforcing our intellectual property
rights;
•
whether we acquire third-party companies, products or technologies;
•
the terms and timing of any other collaborative, licensing and other
arrangements that we may establish;
•
the scope, rate of progress and cost of our current or future clinical trials
and registries;
•
the emergence of competing new products, technologies or alternative treatments
or other adverse market developments;
•
the rate at which we expand internationally;
•
our ability to raise additional funds to finance our operations;
•
debt service requirements; and
•
the cost associated with being a public company.

Our unaudited condensed consolidated financial statements included elsewhere in
this Quarterly Report have been prepared assuming we will continue to operate as
a going concern, which contemplates the realization of assets and settlement of
liabilities in the normal course of business, and do not include any adjustments
to reflect the possible future effects on the recoverability and classification
of assets or the amounts and classifications of liabilities that may result from
uncertainty related to our ability to continue as a going concern. Based upon
our current operating plan, we believe that our cash and cash equivalents,
short-term investments, together with anticipated revenue and available debt
financing arrangements, will be sufficient to meet our capital requirements and
fund our operations through at least the next 12 months from the date of this
Quarterly Report. If our actual operating expenses significantly exceed our
operating plan or our debt financing arrangements become unavailable because
certain borrowing requirements are not met (see Note 9 of our unaudited
condensed consolidated financial statements included elsewhere in this Quarterly
Report on Form 10-Q), we may have to significantly delay or scale back our
operations to reduce working capital requirements, and substantial uncertainty
would exist with respect to our ability to continue as a going concern. In
addition, we would prioritize necessary and appropriate steps to enable the
continued operations of the business and preservation of the value of our assets
beyond the next 12 months, including but not limited to, actions such as
reducing personnel-related costs and delaying or curtailing certain of our
commercial efforts, development activities and other discretionary expenditures
that are within our control. These reductions in expenditures, if required, may
have an adverse impact on our ability to achieve certain of our planned
objectives.

We have based this estimate on estimates and assumptions that may prove to be
wrong, and we may need to utilize additional available capital resources or seek
additional financing opportunistically. Our ability to continue as a going
concern is dependent upon our ability to successfully secure sources of
financing and ultimately achieve profitable operations. If our existing capital
resources are insufficient to satisfy our liquidity requirements, we may seek to
sell additional public or private equity or debt securities or obtain an
additional credit facility. The sale of equity or convertible debt securities
may result in dilution to our stockholders and, in the case of preferred equity
securities or convertible debt, those securities could provide for rights,
preferences or privileges senior to those of our common stock. Debt financing,
if available, may involve covenants restricting our operations or our ability to
incur additional debt. Any debt financing or additional equity that we raise may
contain terms that are not favorable to us or our stockholders. If we raise
additional capital through collaboration agreements, licensing arrangements or
marketing and distribution arrangements, we may have to relinquish valuable
rights to our technologies, future revenue streams, research programs or product
or grant licenses that may not be favorable to us. Additional financing may not
be available at all, or in amounts or on terms unacceptable to us.

Indebtedness



On August 23, 2021, we entered into a fifth amendment to our Credit Agreement
and Guaranty with Perceptive Credit Holdings, LP (the "Perceptive Loan"), which
transferred the loan to Perceptive Credit Holdings III, LP ("Perceptive"). In
connection with this transfer and assignment, we entered into an amended and
restated credit agreement and guaranty (the "New Credit Agreement") with
Perceptive Credit Holdings III, LP (the "Amended Perceptive Loan Agreement"),
which provides for two additional tranches of delayed-draw term loans of $10.0
million each, for an aggregate amount of $20.0 million (the "Amended Perceptive
Loan") and extended the maturity date for repayment, including with respect to
amounts owed in connection with the existing delayed-draw term loan, to August
23, 2026. In conjunction with the Amended Perceptive Loan, the Company paid a
closing fee equal to $0.5 million as well as the lender's legal fees and
expenses. The Company accounted for the amendment as a modification.

In connection with the Amended Perceptive Loan Agreement, we issued a warrant to
purchase 150,685 shares of our Series E convertible preferred stock at a
purchase price of $20.08 per share to Perceptive. Upon the closing of our IPO,
this convertible

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preferred stock warrant was converted to a warrant to purchase 150,685 shares of our common stock at a purchase price of $20.08 per share.



On April 6, 2022, we entered into Amendment No. 1 (the "Amendment") to the
Amended Perceptive Loan Agreement. The Amendment extended the borrowing deadline
for the first tranche of $10.0 million of delayed-draw term loans from December
31, 2021 to September 30, 2022, subject to our having generated at least $36.0
million in revenue for the 12 consecutive month period most recently ended prior
to the borrowing date. The Amendment also extended the borrowing deadline for
the second tranche of $10.0 million delayed-draw term loans from March 31, 2022
to June 30, 2023, subject to (i) our having generated at least $46.0 million in
revenue for the 12 consecutive month period most recently ended prior to the
borrowing date; and (ii) our closing market capitalization being at least $100.0
million on each trading day of the period of 15 consecutive trading days ending
on the business day the borrowing notice for the tranche is delivered to
Perceptive. We borrowed the first tranche of $10.0 million on July 29, 2022 and
received a net proceeds of $9.9 million.

As a condition to entering into the Amendment, on April 6, 2022, we also amended
the warrants previously issued to Perceptive and certain of its affiliates to
purchase an aggregate of 304,105 shares of our common stock. Such warrants were
amended solely to reduce the exercise price of the warrants to $12.00 per share.
In August 2022, a portion of these warrants representing 153,421 shares were
transferred to a third party and its affiliates.

The interest rate for amounts borrowed under the Amended Perceptive Loan
Agreement, as amended, is the greater of the 1-month LIBOR and 2.00% plus the
applicable margin of 9.25%. In connection with entering into the Amended
Perceptive Loan Agreement, as amended, we also entered into an amended and
restated security agreement and granted a security interest in substantially all
of our assets. We are permitted to make voluntary prepayments, subject to a
scaled prepayment premium that ranges from 7.0% to 1.0% of the aggregate
principal amount outstanding on such prepayment date for prepayments made after
August 23, 2022 and before August 23, 2025. No prepayment premium is required
for payments made after August 23, 2025.

The Amended Perceptive Loan Agreement, as amended, includes financial covenants
that require us to (i) maintain, at all times, a minimum aggregate balance of
$3.0 million in cash in one or more controlled accounts, and (ii) satisfy
certain minimum revenue thresholds, measured for the 12 consecutive month period
on each calendar quarter-end until June 30, 2026. These thresholds increase over
time and range from $26.4 million for the 12-month period ended September 30,
2021 to $95.3 million for the 12-month period ended June 30, 2026. Failure to
satisfy these financial covenants would constitute an event of default under the
New Credit Agreement.

The Amended Perceptive Loan Agreement, as amended, contains events of default,
including, without limitation, events of default upon: (i) failure to make a
payment pursuant to the terms of the agreement; (ii) violation of certain
covenants; (iii) payment or other defaults on other indebtedness; (iv) material
adverse change in the business or change in control; (v) insolvency; (vi)
significant judgments; (vii) incorrectness of representations and warranties;
(viii) regulatory matters; and (ix) failure by us to maintain a valid and
perfected lien on the collateral securing the borrowing. In the event of an
event of default, the lender may terminate its commitments and declare all
amounts outstanding under the Amended Perceptive Loan Agreement, as amended,
immediately due and payable, together with accrued interest and all fees and
other obligations. The amount of such repayment will include payment of any
prepayment premium applicable due to the time of such payment. In addition, upon
the occurrence and during the continuance of any event of default, the
applicable margin will increase by 3.00% per annum to 12.25%.

As of September 30, 2022, we had an aggregate principal balance of $40.0 million
outstanding under the Amended Perceptive Loan Agreement, as amended, and we were
in compliance with all covenants and conditions under such agreement.

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