Exhibit 99.1

Sirona Reports Record Fiscal 2013 First Quarter Results

Long Island City, New York, February 8, 2013 – Sirona (Nasdaq: SIRO), the dental technology leader, today announced its financial results for the quarter ended December 31, 2012.

First Quarter Fiscal 2013 vs. First Quarter Fiscal 2012 Financial Results

Revenue was $272.4 million, an increase of $14.3 million or up 5.5% (and up 8.6% on a constant currency basis). The Company’s business segments performed as follows: CAD/CAM Systems increased 13.5% (up 16.5% on a constant currency basis), Treatment Centers increased 4.3% (up 8.4% on a constant currency basis), Imaging Systems increased 2.7% (up 4.9% on a constant currency basis), and Instruments decreased 5.8% (down 2.1% on a constant currency basis).

Revenue in the United States increased 29.0%, while revenues outside the United States decreased 3.3% (up 0.6% constant currency). We had exceptional growth in the U.S. benefiting from strong demand for our Imaging and CAD/CAM products as well as from anticipated tax changes. Despite solid demand, sales in international markets were impacted by Omnicam capacity constraints and from the prioritization of the U.S., the challenging prior-year comparison for Imaging, and a back-end loaded order intake during the quarter, which will translate into sales in the second quarter of fiscal year 2013.

Gross profit was $151.9 million, up $13.1 million. Gross profit margin was 55.8% in the first quarter of Fiscal 2013, compared to 53.8% in the prior year. Gross profit margin as a percent of sales was positively impacted by a positive segment and product mix and lower deal related amortization.

Net income for the first quarter of 2013 was $38.3 million, or $0.68 per diluted share, versus $38.3 million, or $0.67 per diluted share in the prior year period. Non-GAAP adjusted earnings per diluted share for the first quarter of 2013 was $0.94 compared to $0.87 in the prior year quarter. A reconciliation of the non-GAAP measure to earnings per share calculated on a GAAP basis is provided in the attached table.

At December 31, 2012, the Company had cash and cash equivalents of $124.2 million and total debt of $75.4 million, resulting in net cash of $48.8 million. This compares to net cash of $75.6 million at September 30, 2012.

Jost Fischer, Chairman and CEO of Sirona commented: “It is extremely gratifying for my last quarter as CEO of Sirona to leave on such a high note, reporting a record first quarter. The Company is in an excellent position. We continue to see significant enthusiasm surrounding the launch of our revolutionary Omnicam. Demand was so strong that we could not fulfill all of our orders. I am pleased to report that the ramp up phase of manufacturing for the Omnicam is behind us. We continue to see strong demand across Sirona’s broad product portfolio and in all major geographies. I am pleased to see us begin fiscal 2013, building on last year’s success: we extended our global leadership position and delivered strong financial results.”

Mr. Fischer continued: “For the quarter, three of our segments had record quarters, with CAD/CAM and Treatment Centers leading our growth, up 16.5% and 8.4% respectively, on a constant currency basis. Revenue growth was extremely strong in the U.S., up 29.0%, positively impacted by our expanded exclusivity agreement with Patterson, strong demand for our CAD/CAM and Imaging products, and the anticipated implementation of the Medical Device Tax in 2013. Sales outside the U.S. were impacted by prioritization of shipments, but we are seeing strong order intake and we expect to see it reflected in our sales beginning next quarter. Our positive momentum across the product portfolio is continuing into the second quarter and we expect revenue growth to accelerate throughout the year.”

Fiscal 2013 Guidance

Management continues to anticipate fiscal year 2013 constant currency revenue growth to be in the range of 9% to 11%, and EPS on a non-GAAP adjusted basis in a range of $3.33 to $3.43 (reflecting growth of approximately 10% to 13%).

Conference Call/Webcast Information

Sirona will hold a conference call to discuss its financial results at 8:30 a.m. Eastern Time on February 8, 2013. The teleconference can be accessed by calling +1 800.561.2718 (domestic) or +1 617.614.3525 (international) using passcode # 89492026. The webcast will be available via the Internet at http://ir.sirona.com and a presentation relating to the call will be available on our website. A replay of the conference call will be available through February 15, 2013 by calling +1 888 286 8010 (domestic) or +1 617 801 6888 (international) using passcode #61019907. A web archive will be available for 30 days at www.sirona.com.

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About Sirona Dental Systems, Inc.

Sirona, the dental technology leader, has served dealers and dentists worldwide for more than 130 years. Sirona develops, manufactures, and markets a complete line of dental products, including CAD/CAM restoration systems (CEREC), digital intra-oral, panoramic and 3D imaging systems, dental treatment centers and handpieces. Visit http://www.sirona.com for more information about Sirona and its products.

Contact information:

Joshua Zable

Vice President, Investor Relations

+1 718 482 2184

Joshua.Zable@Sirona.com

This press release contains forward-looking information about Sirona Dental Systems, Inc.’s financial results, guidance and estimates, business prospects, and products and services that involve substantial risks and uncertainties or other factors that may cause actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. You can identify these statements by the use of words such as “may,” “could,” “estimate,” “will,” “believe,” “anticipate,” “think,” “intend,” “expect,” “project,” “plan,” “target,” “forecast”, and similar words and expressions which identify forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements are not guarantees of future performance and involve known and unknown risks and uncertainties, and other factors. Readers are cautioned not to place undue reliance on such statements, which speak only as of the date hereof. For a discussion of such risks, uncertainties and other matters that could cause actual results to differ materially, including risks relating to, among other factors, the market for dental product and services, pricing, future sales volume of the Company’s products, the possibility of changing economic, market and competitive conditions, dependence on products, dependence on key personnel, technological developments, intense competition, market uncertainties, dependence on distributors, ability to manage growth, dependence on key suppliers, dependence on key members of management, government regulation, acquisitions and affiliations and currency exchange rate fluctuations, readers are urged to carefully review and consider various disclosures made by the Company in its Annual Report on Form 10-K and in its reports on Forms 10-Q and 8-K filed with the U.S. Securities and Exchange Commission, which can be accessed through the SEC’s website, www.sec.gov. This presentation contains non GAAP financial measures, which should not be viewed in isolation and do not purport to be an alternative to net income (loss) as an indicator of operating performance or an alternative to cash flows from operating activities as a measure of liquidity. The Company assumes no obligation to and expressly disclaims any obligation to update or revise any forward-looking statements contained in this document to reflect new information or future events or developments after the date any such statement is made.

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SIRONA DENTAL SYSTEMS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENT OF INCOME

(UNAUDITED)

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SIRONA DENTAL SYSTEMS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

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SIRONA DENTAL SYSTEMS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

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Reconciliation of GAAP and Non-GAAP Information (unaudited)

HISTORICAL

Non-GAAP Adjusted Net Income Financial Measures (unaudited)

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FORWARD-LOOKING

Non-GAAP Adjusted EPS Guidance (unaudited)

To supplement our consolidated financial statements and our business outlook, we use the following non-GAAP financial measures: (i) non-GAAP adjusted net income, and (ii) non-GAAP adjusted earnings per diluted share, which exclude, as applicable, amortization and depreciation expense resulting from the step-up to fair values of intangible and tangible assets related to past business combinations, gain/loss on foreign currency transactions, gain/loss on derivative instruments and any related tax effects and to the extent relevant in a particular period, any other cash or non-cash items that management does not view as indicative of its on-going operating performance. Also set forth above under the heading “FORWARD-LOOKING” are reconciliations of forward-looking non-GAAP financial measures to the most directly comparable GAAP financial measures.

Management recognizes that the use of these non-GAAP measures has limitations, including the fact that they might not be comparable with similar non-GAAP measures used by other companies and that management must exercise judgment in determining which types of charges and other items should be excluded from its non-GAAP financial measures. Management currently compensates for these limitations by providing full disclosure of each non-GAAP financial measure and a reconciliation to the most directly comparable GAAP measure. The presentation of this financial information is not intended to be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP.

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We use these non-GAAP financial measures for financial and operational decision making and as a means to evaluate period-to-period comparisons. Our management believes that these non-GAAP financial measures provide meaningful supplemental information regarding our “core operating performance”. Management believes that “core operating performance” represents Sirona’s operating performance in the ordinary, ongoing and customary course of its operations. Accordingly, management excludes from “core operating performance” the impact of acquisition-related intangible depreciation and amortization in order to compare our underlying financial performance to prior periods, certain charges related to currency revaluation of assets and liabilities that do not reflect our period-to-period core operating performance, and to the extent relevant in a particular period, any other cash or non-cash items that management does not view as indicative of its on-going operating performance. We believe that both management and investors benefit from referring to these non-GAAP financial measures in assessing our performance and when planning, forecasting and analyzing future periods. These non-GAAP financial measures also facilitate management’s internal evaluation of period-to-period comparisons. We believe these non-GAAP financial measures are useful to investors both because (1) they allow for greater transparency with respect to key metrics used by management in its financial and operational decision making and (2) they are provided to and used by our institutional investors and the analyst community to facilitate comparisons with prior and subsequent reporting periods.

Constant Currency: We have included certain revenue information in this press release on a constant currency basis. This information is a non-GAAP financial measure. We additionally present revenue on a constant currency basis because we believe it facilitates a comparison of our operating results from period to period without regard to changes resulting solely from fluctuations in currency rates.

Sirona calculates constant currency revenue growth by comparing current period revenues to prior period revenues with both periods converted at the U.S. Dollar/Euro average foreign exchange rate for each month of the current period. The average exchange rate for the three months ended December 31, 2012, was $1.29708 and varied from $1.28296 to $1.31075. For the three months ended December 31, 2011, an average exchange rate converting Euro denominated revenues into U.S. Dollars of $1.34934 was applied.

Our forecasted 2013 constant currency net revenue guidance excludes the impact of foreign exchange. We are unable to reconcile our projected 2013 constant currency net revenue growth to our full-year projected 2013 net revenue growth because we are unable to predict the 2013 and long-term impact of foreign exchange due to the unpredictability of future changes in foreign exchange rates. Therefore, we are unable to provide a reconciliation of these measures.

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