Oksana's Dentist Sticks With Original Story

8/23/2010 10:00 AM PDT
Oksana Grigorieva's dentist is talking on camera for the first time -- sticking with his first version of events on January 6 between Mel Gibson and Oksana  -- that she was struck in the mouth AND the head.

As we first reported, Oksana went to Dr. Ross Shelden the day after the blowup. Dr. Shelden signed a written declaration stating Oksana was struck in the mouth and the temple. But as we reported, he has also told another, conflicting story -- that Oksana was NOT struck in the mouth -- and there was no evidence of bruising consistent with a strike to the mouth. Dr. Shelden theorized Oksana was struck in the temple, which caused her to bite down hard which led to two veneers coming out.

In this video shot Thursday, Dr. Shelden -- who at first says he shouldn't comment -- says, "I think [Oksana's injuries] were definitely caused by a blow to the mouth and a blow to the head."

If Mel Gibson is charged with domestic violence, Dr. Shelden's inconsistent stories could damage his credibility as a witness.