Currently, many composite materials have been used in the filling of access openings for screw-retained implant prosthesis. The main disadvantage of these materials is the compromise in esthetics that they place on the implant crown. An additional disadvantage is leakage of bacterial contaminants around traditional light-cured composites placed in the screw access hole. This article introduces a technique that uses opaqueing composites and the expansion properties of panacea (Zeza Inc, Chester, NY) resin to help remedy these problems. The fabrication of the silicone obturator is explained in previous literature. By following this technique, the dentist can use resin to decrease microleakage and opaqueing composite to improve esthetics.
After the prosthesis is screwed onto the abutment, the access canals are filled with light-bodied polyvinylsiloxane impression material (or a cotton pellet).
After the polyvinylsiloxane has completely polymerized, it can be easily removed with an explorer. This polyvinylsiloxane will aid in the protection of the screw during removal with a rotary instrument. In addition, Adrian1 recommends that during the interim period, full-length silicone plugs can be used before final sealing of the canal with the resin. The silicone obturator is cut to allow for space for the resin. The technique itself is demonstrated in Figures 1 through 8, and clinical results are shown in Figure 9.
Ryan C. Taylor, DDS, is a resident in the Department of Periodontics, Ashraf S. Ghoneim, BDS, is an implant fellow in the Ohio State Implant Clinic, and Edwin A. McGlumphy, DDS, MS, is an associate professor in Restorative and Prosthetic Dentistry in the College of Dentistry, The Ohio State University, Columbus, Ohio. Correspondence should be addressed to Dr McGlumphy at Restorative and Prosthetic Dentistry, College of Dentistry, The Ohio State University, 305 West 12th Avenue, Columbus, OH 43210 (mcGlumphy.firstname.lastname@example.org).