Clinical and radiographic evaluation of periodontal and peri-implant conditions in patients with implant-supported prosthesis

The aim of the present study was to clinically and radiographically assess the peri-implant and periodontal conditions in partially edentulous patients with implant-supported fixtures installed, at least, one year prior to the study. 41 patients were examined by a calibrated examiner in relation to...

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Published in:	Acta odontológica latinoamericana Vol. 20; no. 2; pp. 87 - 95
Main Authors:	Abreu, Monica H, Bianchini, Marco A, Magini, Ricardo S, Rösing, Cassiano K
Format:	Journal Article
Language:	English
Published:	Argentina 2007
Subjects:	Adult Aged Alveolar Bone Loss - classification Alveolar Bone Loss - diagnostic imaging Dental Implants Dental Plaque Index Dental Prosthesis, Implant-Supported Dentistry Female Follow-Up Studies Gingival Hemorrhage - classification Gingivitis - classification Humans Jaw, Edentulous, Partially - rehabilitation Jaw, Edentulous, Partially - surgery Male Middle Aged Periodontal Attachment Loss - classification Periodontal Diseases - classification Periodontal Diseases - diagnostic imaging Periodontal Pocket - classification Periodontitis - classification Radiography
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Summary:	The aim of the present study was to clinically and radiographically assess the peri-implant and periodontal conditions in partially edentulous patients with implant-supported fixtures installed, at least, one year prior to the study. 41 patients were examined by a calibrated examiner in relation to the following implant-associated parameters: Modified Plaque Index (mPlI), Modified Bleeding Index (mBI), probing depth (PD), clinical attachment level (CAL) and bleeding on probing of the bottom of the crevice (BOP). Also, the remaining teeth were assessed in terms of Plaque Index (PlI), Gingival Index (GI), PD, CAL and BOP. The peri-implant bone loss was evaluated by means of periapical radiographs. Measurements of pre-operatory and final bone levels allowed an estimation of bone loss associated to teeth and a comparison with bone loss around implants. None of the individuals presented late loss of implants until the examination took place. No statistically significant differences were observed between PlI (0.90+/-0.07) and mPlI (0.82+/-0.13), or between GI (0.11+/-0.02) and mBI (0.10+/-0.02). However, PD, CAL and BOP values were higher in implants than in teeth (Wald Test, p<0.01). Implants presented a mean annual bone loss during the study period of 0.77 mm (SE=0.06). Teeth virtually did not present any bone loss (mean value of 0.36%) whereas implants exhibited a bone loss value of 17.11%. Plaque accumulation and marginal inflammation did not differ between teeth and implants. However, subgingival inflammation was higher in implants than in teeth. The destruction measurements suggest greater losses in implants, as expected because of tissue remodelation.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0326-4815