Hurricane Katrina from a faculty perspective.
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Biomedical subjects
Publications and source records attributed to Markus Blatz.
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Many clinicians consider the prosthetic restoration of missing posterior teeth by means of a 5-unit fixed partial denture with a pier abutment a non-favorable situation. The present article assesses the validity of the pier abutment by means of a critical review of the literature and mathematical analysis of the forces generated within a fixed partial denture of this design. Few studies are available, and none substantiate the theory that the pier abutment serves as a fulcrum. A mathematical model suggests that debonding may occur in the anterior abutment, but not due to the teetering of the fixed partial denture around the pier abutment.
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Ceramic inlays and onlays have significant aesthetic and biologic benefits. Long-term clinical studies on the success of ceramic inlays and onlays, however, provide only limited observation periods, considering that such restorations rely on current and constantly improving adhesive bonding techniques. Alternative materials, such as cast-gold restorations, have a long history of documented clinical success, which should be taken into consideration when making decisions on proper restorative material selection.
The few clinical long-term studies published on all-ceramic posterior crowns indicate a favorable trend. In light of the well-documented longevity of conventional PFM crowns, however, more randomized controlled clinical long-term trials are necessary for one to recommend any technique or material over another.