Abstract: A dental prosthesis comprises an implant, an abutment and a crown. The implant has distal and proximal portions with the implant proximal portion including distal and proximal segments. The implant proximal segment has an outer surface. The abutment has distal and proximal segments and defines an abutment shoulder therebetween. The abutment shoulder is configured to circumferentially engage the outer surface of the implant proximal segment such that an implant abutment joint is defined therebetween. The crown is configured to be positioned over the abutment and the implant such that the crown covers the implant abutment joint. The implant proximal segment has an annular concave cross-section such that the crown distal end has a rounded shape to reduce the potential for stress cracking of the crown.

Abstract: A dental prosthesis comprises an implant, an abutment and a crown. The implant has distal and proximal portions with the implant proximal portion including distal and proximal segments. The implant proximal segment has an outer surface. The abutment has distal and proximal segments and defines an abutment shoulder therebetween. The abutment shoulder is configured to circumferentially engage the outer surface of the implant proximal segment such that an implant abutment joint is defined therebetween. The crown is configured to be positioned over the abutment and the implant such that the crown covers the implant abutment joint. The implant proximal segment has an annular concave cross-section such that the crown distal end has a rounded shape to reduce the potential for stress cracking of the crown.

Abstract: A dental prosthesis comprises an implant, an abutment and a crown. The implant has distal and proximal portions with the implant proximal portion including distal and proximal segments. The implant proximal segment has an outer surface. The abutment has distal and proximal segments and defines an abutment shoulder therebetween. The abutment shoulder is configured to circumferentially engage the outer surface of the implant proximal segment such that an implant abutment joint is defined therebetween. The crown is configured to be positioned over the abutment and the implant such that the crown covers the implant abutment joint. The implant proximal segment has an annular concave cross-section such that the crown distal end has a rounded shape to reduce the potential for stress cracking of the crown.

Abstract: A dental prosthesis comprises an implant, an abutment and a crown. The implant has distal and proximal portions with the implant proximal portion including distal and proximal segments. The implant proximal segment has an outer surface. The abutment has distal and proximal segments and defines an abutment shoulder therebetween. The abutment shoulder is configured to circumferentially engage the outer surface of the implant proximal segment such that an implant abutment joint is defined therebetween. The crown is configured to be positioned over the abutment and the implant such that the crown covers the implant abutment joint. The implant proximal segment has an annular concave cross-section such that the crown distal end has a rounded shape to reduce the potential for stress cracking of the crown.

Abstract: A dental prosthesis comprises an implant, an abutment and a crown. The implant has distal and proximal portions with the implant proximal portion including distal and proximal segments. The implant proximal segment has an outer surface. The abutment has distal and proximal segments and defines an abutment shoulder therebetween. The abutment shoulder is configured to circumferentially engage the outer surface of the implant proximal segment such that an implant abutment joint is defined therebetween. The crown is configured to be positioned over the abutment and the implant such that the crown covers the implant abutment joint. The implant proximal segment has an annular concave cross-section such that the crown distal end has a rounded shape to reduce the potential for stress cracking of the crown.

Abstract: A dental prosthesis comprising an implant, an abutment attached to the implant in a manner wherein an implant abutment joint is defined therebetween, and a crown attached to the abutment and the implant in a manner wherein the implant abutment joint is covered by the crown. The attachment of the crown to the abutment and the implant is accomplished through the use of an adhesive which extends between the crown and the implant in a manner wherein the adhesive seals the implant abutment joint thereby preventing any bacterial colonization or other deterioration therein.

Abstract: An improved endoscopic system for visualizing subgingival dental procedures. The device comprises a dilator projection incorporated into or onto the body of a dental instrument utilized to remove plaque and calculus from subgingival tooth surfaces. The projection preferably comprises a thin, flat shield portion having an arcuate shank portion extending therefrom. In use, the shield portion of the dilator projection is operative to dilate or spread the gingiva away from the adjacent tooth surfaces upon which the dental instrument is utilized to remove plaque and calculus. Formed within the shank portion of the dilator projection is at least one lumen for receiving an endoscopic viewing apparatus, that receives and transmits an optical image from the interior of the gingival sulcus or periodontal pocket to an image displaying device positioned outside the patient's body. Additional lumens may be formed within the shank portion of the dilator projection for the infusion of fluid or suction/aspiration.

Abstract: A dental prosthesis comprising an implant, an abutment attached to the implant in a manner wherein an implant abutment joint is defined therebetween, and a crown attached to the abutment and the implant in a manner wherein the implant abutment joint is covered by the crown. The attachment of the crown to the abutment and the implant is accomplished through the use of an adhesive which extends between the crown and the implant in a manner wherein the adhesive seals the implant abutment joint thereby preventing any bacterial colonization or other deterioration therein.