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KMID : 0355620090350040248
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Journal of Korean Association of Oral and Maxillofacial Surgeons
2009 Volume.35 No. 4 p.248 ~ p.252
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COMPLICATIONS OF THE IMPLANT-SUPPORTED POSTERIOR MANDIBULAR SINGLE RESTORATIONS WITH MESIAL CANTILEVER
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Shin He-Sung
Kim Myung-Rae
Kim Sun-Jong
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Abstract
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Purpose: This retrospective study was performed to analyze the relationship between complications of the posterior mandibular single crowns and distance from the adjacent teeth to the implant.
Subjects and Methods : Of the patients who presented Ewha Womans University Mokdong Hospital & Yonsei University Dental Hospital with missing of the posterior mandibular molar and restored with implant-supported 18 Single crowns between 1996 thru 2007, 115 patients had been followed after crown delivery. The subjects were divided into complication-followed group and a control without any problems. The distance from the most distal tooth to the implant were measured. The prosthetic & biologic complications were reviewed by the cantilever distance and analyzed by abutment type, age & gender statistically using SAS version 9.1 (SAS Inc., USA).
Results and Conclusion : The results were as follows; 1) The posterior mandibular single crown with cantilever showed higher incidence of follow-up complications upon logistic analysis (p<0.05). 2) The prosthetic and biologic complications are related with the cantilever distance with 2.1 odds ratio and 3.39 cut-off value of specificity & sensitivity by SPSS 12.0. 3) The complications are neither significant in abutment types nor age & gender.
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KEYWORD
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Posterior single implant, mesial cantilever, complication
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