Complication and Failure Rates with Implant‐Supported Fixed Dental Prostheses and Single Crowns: A 10‐Year Retrospective Study

Abstract

After a mean exposure time of 10.75 years, high survival rates for reconstructions supported by Sand-blasted Large-grit Acid-etched implants can be expected. Ceramic chipping was the most frequent complication and was increased in dentitions with attrition and in FDPs compared with SCs.

Clinical Evaluation of 762 Single-Tooth, Locking-Taper Implants: A Prospective Study with 1- to 12-Years of Follow-Up

“…Despite the high survival rates and predictability of rehabilitating patients with single-tooth restorations using dental implants, prosthetic complications (abutment screw loosening/fracture, chipping/fracture of veneering materials, need for recementation) still remain an issue; managing these complications can cause extra amount of chair-side time, additional costs and patient dissatisfaction [2,[5][6][7][8][9][10]. Abutment screw loosening was described already in 1996 as the most common complication affecting abutments tightened with a titanium screw [15].…”

“…However, despite the progresses produced by these improvements in the shortterm, recent long-term clinical studies have reported an increasing prosthetic complication occurrence with time, confirming that abutment screw loosening continues to be an important issue for clinicians [2,7,8,10]. In a long-term retrospective study evaluating the survival rates and the frequency of complications associated with implant-supported SCs [2], excellent implant survival rates were found, with a high frequency of complications (29.6%).…”

“…Nevertheless, no abutment or abutment screw fractures were reported [7]. In another recent 10-year retrospective study [8], the rate of mechanical/technical complications and failures of 397 fixed implant-supported fixed restorations, including 268 single crowns, was assessed. At the end of the study, the most frequent prosthetic complication was ceramic chipping (20.3%) followed by occlusal screw loosening (2.5%) and loss of retention (2.0%) [8] One abutment loosening and two abutment fractures were reported.…”

“…In another recent 10-year retrospective study [8], the rate of mechanical/technical complications and failures of 397 fixed implant-supported fixed restorations, including 268 single crowns, was assessed. At the end of the study, the most frequent prosthetic complication was ceramic chipping (20.3%) followed by occlusal screw loosening (2.5%) and loss of retention (2.0%) [8] One abutment loosening and two abutment fractures were reported. This resulted in a total mechanical/technical complication rate of 24.7%, with a prosthetic success rate over a mean follow-up time of 10.75 years was 70.8% [8].…”

Evaluation of Peri-Implant Bone Reduction Levels from Superimposition Perspective: Pilot Study among Ukrainian Implantology Practice

“…The use of dental implants as intraosseous supports for different designs of prosthetic constructions demonstrates high rates of success both in 5 and in 10 years prospective [1][2][3][4]. Such method of treating the patients with symptoms of partial and full adentia, according to previous studies, usually exceeds 90% level of success [5][6][7][8].…”