Laser welding of a nickel-chromium dental alloy.
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Biomedical subjects
Publications and source records attributed to J C Adrian.
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In a preliminary study, the effects of a biodegradable collagen gel on the healing of osseous defects were examined. Histologic and biochemical observations made on the seventh day after placement revealed that the collagen gel is well tolerated by the recipient and might be an effective stimulator of the formation of reparative bone. However, between the seventh and fourteenth days after placement, the deposition of reparative osseous tissues at the site of implant was significantly retarded. The possible implication of these findings is discussed.
This is the initial report of a new, objective means of determining early pulpal reaction to an insult. The method consists of (1) direct measurement of the thickness of the predentin in the crown and cervical portions of each tooth, (2) determination of the Predentin Index, and (3) subsequent comparison of the PI's of control versus experimental teeth. If the Predentin Index of the experimental is lower than that of the control, a pulpal injury has occurred. Reliance on the subjective, interpretive ability of the observer is effectively eliminated.
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