Exhibit 4.3

                        CERTIFICATE OF AMENDMENT
                                  OF
             CERTIFICATE OF DESIGNATIONS, PREFERENCES AND RIGHTS
                                  OF
                        SERIES A PREFERRED STOCK
                                  OF
                             CRDENTIA CORP.
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Pursuant to Section 151 of the General Corporation Law of the State of
Delaware
                  --------------------------------------

Crdentia Corp., a corporation duly organized and existing under the General
Corporation Law of the State of Delaware (the "Corporation"), does hereby
certify that:

FIRST:  That by unanimous written consent of the Board of Directors of the
Corporation, dated as of January 29, 2004, resolutions were duly adopted
setting forth a proposed amendment of the Certificate of Designations,
Preferences and Rights of Series A Preferred Stock of the Corporation,
filed on December 17, 2003 (the "Certificate of Designations"), declaring
said amendment to be advisable.  The resolution setting forth the proposed
amendment is as follows:

RESOLVED, that Section 1. of the existing Certificate of Designations,
Preferences and Rights of Series A Preferred Stock be amended in its
entirety to read as follows:

"Section 1.	Designation and Amount.  The shares of such series shall be
designated as "Series A Preferred Stock" (the "Series A Preferred Stock")
and the number of shares constituting the Series A Preferred Stock shall be
Two Million Seven Hundred Fifty Thousand (2,750,000), $0.0001 par value.
Such number may be increased or decreased by resolution of the Board of
Directors of the Corporation; provided, however, that no decrease shall
reduce the number of shares of Series A Preferred Stock to a number less
than the number of shares then outstanding plus the number of shares
reserved for issuance upon the exercise of outstanding options, rights or
warrants or upon the conversion of any outstanding securities issued by the
Corporation convertible or exercisable into Series A Preferred Stock."

SECOND:  That said amendment was duly adopted in accordance with the
provisions of Section 151 of the General Corporation Law of the State of
Delaware and that further stockholder approval is not required pursuant to
the authority of granted to the Board of Directors by the existing
Certificate of Designations.

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IN WITNESS WHEREOF, the Corporation has caused this certificate to be
signed by its duly elected Chief Financial Officer this 3rd day of February,
2004.
                                             CRDENTIA CORP.
                                             By:/s/  William S. Leftwich
                                             William S. Leftwich
                                             Chief Financial Officer

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