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Influence of the adjacent periodontium and inter-implant distance on bone resorption around non-submerged implants;A retrospective clinical and radiographic study  

Chang, Moon-Taek (Department of Periodontology, School of Dentistry, Research Institute of Clinical Medicine, Chonbuk National University)
Publication Information
Journal of Periodontal and Implant Science / v.34, no.3, 2004 , pp. 535-541 More about this Journal
Abstract
The aims of the present study are firstly to investigate the amount of bone loss around non-submerged implants placed in the posterior region and secondly to investigate the relationship between inter-implant and implant-tooth distance and peri-implant bone loss. Thirty-one subjects with 60 implants were selected consecutively from the implant patient pool at the department of Chonbuk National University Hospital. To be included in the study subject, the implant should have been functioned more than 6 months after loading. Inter-implant and implant-tooth distance, distance between implant shoulder and the first bone contact with the implant(DIB) were measured from the scanning image of the radiograph of each implant. The result showed that; 1. inter-implant distance has a statistically significant relationship with DIB in Pearson correlation analysis. 2. the DIB at the implant facing surface of the implant was greater than that of tooth facing surface of the implant. Within limitation of this study, it is suggested to place an implant not too closely to adjacent implants, and the presence of a tooth adjacent to an implant may keep the level of tooth-facing surface of the implant. Further studies with a prospective design are needed to elucidate the relationship between bone changes and various dimensions around implants.
Keywords
Inter-implant distance; Implant-tooth distance; Peri-implant bone loss;
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