<PAGE>

                                                                     EXHIBIT 4.2

                                STATE OF DELAWARE
                            CERTIFICATE OF CORRECTION

                  Crdentia Corp., a corporation organized and existing under and
                  by virtue of the General Corporation Law of the State of
                  Delaware.

                  DOES HEREBY CERTIFY:

                  1. The name of the corporation is Crdentia Corp.
                  2. That a Certificate of Amendment to Amended and Restated
                  Certificate of Incorporation of the corporation was filed by
                  the Secretary of State of Delaware on June 14, 2004 and that
                  said Certificate requires correction as permitted by Section
                  103 of the General Corporation Law of the State of Delaware.
                  3. The inaccuracy or defect of said Certificate to be
                  corrected is as follows:

                  The combination of the outstanding shares of the Common Stock
                  effected by said Certificate should be effective as of 5:00
                  p.m., Eastern Time, on June 28, 2004, not as of 5:00 p.m.
                  Eastern Time on the date the Certificate is filed with the
                  Secretary of State of the State of Delaware.

                  4. Article IV Paragraph (A) of the Certificate is corrected to
                  read as follows:

                  "(A) CLASSES OF STOCK. This corporation is authorized to issue
                  two classes, denominated Common Stock and Preferred Stock. The
                  Common Stock shall have a par value of $0.0001 per share and
                  the Preferred Stock shall have a par value of $0.0001 per
                  share. The total number of shares of Common Stock which this
                  corporation is authorized to issue is fifty million
                  (50,000,000), and the total number of shares of Preferred
                  Stock which this corporation is authorized to issue is ten
                  million (10,000,000). Effective as of 5:00 p.m., Eastern Time,
                  on June 28, 2004 each three (3) shares of this corporation's
                  Common Stock, par value $0.0001 per share, issued and
                  outstanding shall, automatically and without any action on the
                  part of the respective holders thereof, be combined and
                  converted into one (1) share of Common Stock, par value
                  $0.0001 per share, of this corporation. No fractional shares
                  shall be issued and, in lieu thereof, any holder of less than
                  one share of Common Stock shall be entitled to receive cash
                  for such holder's fractional share based upon the fair market
                  value of the Common Stock as of the date this Certificate of
                  Amendment is filed with the Secretary of State of the State of
                  Delaware as determined by this corporation's Board of
                  Directors."

                  IN WITNESS WHEREOF, Crdentia Corp. has caused this certificate
                  to be signed by its Chief Executive Officer as of June 16,
                  2004.



                                               By: /S/ JAMES D. DURHAM
                                                   -----------------------------
                                                       James D. Durham,
                                                       Chief Executive Officer