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Volume 26 , Issue 2
March/April 2013

Pages 135137

Effect of Misfit of Cement-Retained Implant Single Crowns on Crestal Bone Changes

Chun-Jung Chen, DDS/Panos Papaspyridakos, DDS, MS/Kevin Guze, DMD, DMSc/Medha Singh, DMD, MS/Hans-Peter Weber, DMD, Dr Med Dent/German O. Gallucci, DMD, Dr Med Dent, PhD

PMID: 23476906
DOI: 10.11607/ijp.3137

The purpose of this clinical study was to compare peri-implant crestal bone levels between misfitting (overhanging/open margin) cement-retained implant single crowns (SCs) vs accurately fitted implant SCs. Seventeen subjects were divided into two groups: test group (misfitting crowns, n = 10) and control group (accurately fitted crowns, n = 7). Crestal bone level changes were assessed using digital software. The average differences in mean bone loss within and between the two groups were statistically significant. Cement-retained implant SCs with marginal misfit resulted in more crestal bone loss than accurately fitted crowns after a mean of 3 years in function. Int J Prosthodont 2013;26:135137. doi: 10.11607/ijp.3137

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