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BioMed Research International
Volume 2017, Article ID 7191534, 8 pages
https://doi.org/10.1155/2017/7191534
Research Article

Dental Implant Surrounding Marginal Bone Level Evaluation: Platform Switching versus Platform Matching—One-Year Retrospective Study

1School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
2Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
3Dental Department, Taipei Medical University Hospital, Taipei 110, Taiwan
4School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
5Dental Department, Taipei Medical University, Shuang-Ho Hospital, Taipei 235, Taiwan

Correspondence should be addressed to May-Show Chen; wt.ude.umt@nehcyam and Wei-Jen Chang; wt.ude.umt@1nejiewc

Received 4 May 2017; Revised 21 August 2017; Accepted 29 August 2017; Published 24 October 2017

Academic Editor: Hassan Maghaireh

Copyright © 2017 Eisner Salamanca et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The benefits and feasibility of platform switching have been discussed in several studies, reporting lesser crestal bone loss in platform-switched implants than in platform-matched implants. Objective. The aim of the present study was to observe the changes in vertical and horizontal marginal bone levels in platform-switched and platform-matched dental implants. Materials and Methods. 51 patients received 60 dental implants in the present study over a 1-year period. Measurement was performed between the implant shoulder and the most apical and horizontal marginal defect by periapical radiographs to examine the changes of peri-implant alveolar bone before and 12 months after prosthodontic restoration delivery. Results. These marginal bone measurements showed a bone gain of  mm in the vertical gap and  mm in the horizontal gap of platform matching, while in platform switching a bone gain of  mm () in the vertical gap and  mm in the horizontal gap was found. The average vertical gap reduction from the baseline until 12 months was  mm in platform switching and  mm in platform matching (). Conclusions. Within the limitations of the present study, platform switching seemed to be more effective for a better peri-implant alveolar bone vertical and horizontal gap reduction at 1 year.