Reliability of retrievable cemented implant-supported prostheses

The Journal of Prosthetic Dentistry
Joseph NissanGavriel Chaushu

Abstract

One of the disadvantages of a cemented implant restoration is the potential difficulty of retrieving it. The restoration may be destroyed during removal. The purpose of this retrospective clinical study was to assess the long-term survival rates of cemented posterior metal ceramic implant-supported prostheses (ISPs) with a metal screw access hole. During a 12-year period, 274 cemented ISPs with an abutment screw access hole in the metal framework were assessed and served as the study group, and 119 conventional cemented ISPs (without access hole) served as the control group. Participants were followed every 6 months in the first year and once a year subsequently. Ceramic fracture, screw loosening, and refabrication were the prosthetic outcome parameters evaluated at the recall. The Pearson Chi square and Fisher exact test were used to compare the outcome parameters between the control and study groups. A total of 1005 implants and 393 ISPs were evaluated. Ceramic fracture occurred in 6.6% of the ISPs (6.2% test and 7.6% control). Screw loosening occurred in 3.28% of the test group and 3.36% of the control group. Refabrication of ISPs was done in 2.79% of all restorations, (1.45% test and 6.72% control [P=.012]). Within the limi...Continue Reading

References

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Feb 21, 2002·The Journal of Prosthetic Dentistry·Makoto Okamoto, Shogo Minagi
Nov 12, 2002·The Journal of Prosthetic Dentistry·John Doerr
Feb 14, 2006·The Journal of Prosthetic Dentistry·E Ricardo Schwedhelm, Ariel J Raigrodski
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Feb 9, 2010·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Wael M Al-OmariBilal El Masoud
Jul 25, 2012·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Russell WicksAndrew Johnson
Mar 31, 2015·The Journal of Prosthetic Dentistry·Paul de KokAlbert J Feilzer

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Citations

Jul 28, 2016·The Journal of Prosthetic Dentistry·Iman Abd-Elwahab Radi, Adnan Alfahd
Jun 20, 2017·The Journal of Oral Implantology·Periklis ProussaefsMathew T Kattadiyil

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