**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

** **

**FORM 10-Q/A**

**(Amendment No. 1)**

 

(MarkOne)

 

x          **QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OFTHE SECURITIES EXCHANGE ACT OF 1934**

** **

For the quarterly period ended June 30, 2006.

 

OR

 

o             **TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OFTHE SECURITIES EXCHANGE ACT OF 1934**

 

For the transition period from                     to                     .

 

Commissionfile number:  **000-22673**

 

**SIRONA DENTAL SYSTEMS, INC.**

(Exactname of registrant as specified in its charter)

 
| Delaware                                                          | **11-3374812**                     |
|-------------------------------------------------------------------|------------------------------------|
| (State or other  jurisdiction of   incorporation or organization) | (IRS Employer  Identification No.) |

** **

**30-00 47th Avenue, Long Island City, NY 11101**(Address of principal executive offices)(Zip Code)

 

Registrant’s telephone number, including area code:**(718) 937-5765**

 

Indicate by check mark whether the registrant (1) hasfiled all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter periodthat the registrant was required to file such reports), and (2) has beensubject to such filing requirements for the past 90 days.   Yes x   No  o

Indicate by check mark whether the registrant is alarge accelerated filer, an accelerated filer, or a non-accelerated filer.  See definition of “accelerated filer andlarge accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Large AcceleratedFiler o      AcceleratedFiler x      Non-Accelerated Filer o

Indicate by check mark whether the registrant is ashell company (as defined in Rule 12b-2 of the Exchange Act).Yes o   No x

As of August 7, 2006, 54,598,189 shares of commonstock, par value $.01 per share, were outstanding.

 

 

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**EXPLANATORYNOTE**

This Amendment No.1 to our Quarterly Report on Form 10-Q for the fiscal quarter ended June 30,2006 is being filed solely for the purpose of correcting certain inadvertentomissions in the certifications filed as Exhibits 31.1 and 31.2 thereto.  This Amendment does not reflect eventsoccurring after the filing of the Form 10-Q and, other than the filing of thesecorrected certifications, this Amendment No. 1 does not change or update any ofthe Company’s previously reported financial statements or any other disclosurecontained in the original Form 10-Q.

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**SIRONADENTAL SYSTEMS, INC.**

**SIGNATURES**

          Pursuantto the requirements of the Securities Exchange Act of 1934, the registrant hasduly caused this Report to be signed on its behalf by the undersigned thereuntoduly authorized.

 
|                       | SIRONA DENTAL SYSTEMS, INC. |
|-----------------------|-----------------------------|
|                  |                        |   |
| Date: October 7, 2006 | By:                         | /s/ Jost Fischer |
|                  |                        | Jost Fischer |
|                  |                        | Chairman, President and Chief Executive Officer |
|                  |                        |   |
|                  | By:                         | /s/ Simone Blank |
|                  |                        | Simone Blank |
|                  |                        | Executive Vice President and Chief Financial Officer |
|                  |                        | (Principal Financial Officer) |

 

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**EXHIBITINDEX**
| Exhibit No. | ** ** | **Description**                                                                          |
|-------------|------------|------------------------------------------------------------------------------------------|
| 31.1        |       | Certification of Chief Executive Officer pursuant to  the Sarbanes-Oxley Act of 2002     |
|        |       |                                                                                     |
| 31.2        |       | Certification of Principal Financial Officer  pursuant to the Sarbanes-Oxley Act of 2002 |

 

 

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