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Comparative Analysis of Peri-Implant Marginal Bone Loss Based on Microthread Location: A 1-Year Prospective Study After Loading

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Comparative Analysis of Peri-Implant Marginal Bone Loss Based on Microthread Location: A 1-Year Prospective Study After Loading

Auteurs : Dong-Wook Song [Corée du Sud] ; Dong-Won Lee [Corée du Sud] ; Chong-Kwan Kim [Corée du Sud] ; Kwang-Ho Park [Corée du Sud] ; Ik-Sang Moon [Corée du Sud]

Source :

Journal of periodontology [ 0022-3492 ] ; 2009.

RBID : Pascal:10-0033055

Descripteurs français

Pascal (Inist)
- Ostéopénie, Radiographie, Implant, Os alvéolaire, Dent, Dentisterie.

English descriptors

KwdEn :
- Alveolar bone, Dentistry, Implant, Osteopenia, Radiography, Tooth.

Abstract

Background: The purpose of the present study was to investigate the short-term effects of microthread location on peri-implant marginal bone levels. Methods: Two types of implants, one with microthreads placed at the implant top (group A) and the other with microthreads placed 0.5 mm below the implant top (group B), were placed adjacent to each other in the partially edentulous areas of 20 patients. In total, 40 implants were placed. Bone loss around each implant was analyzed after 1 year of functional loading, and gingival parameters (modified plaque index and modified sulcus bleeding index) of the peri-implant soft tissue were evaluated. Bone losses after loading and gingival parameters were compared using the paired t test. Results: The average bone loss was 0.16 (SD: 0.19) mm in group A and 0.30 (SD: 0.22) mm in group B after 1-year of functional loading. The paired t test revealed a significant difference in crestal bone loss between groups A and B in individual patients (P= 0.004). No significant differences were found between the two groups for the gingival parameters. Conclusions: Less peri-implant bone loss was observed around implants with microthreads placed at the implant top (group A) compared to those in which microthreads were placed below the top (group B). These results indicated that the microthreads acted to stabilize the peri-implant marginal bone, and their locations played an important role in the stabilization process.

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Background: The purpose of the present study was to investigate the short-term effects of microthread location on peri-implant marginal bone levels. Methods: Two types of implants, one with microthreads placed at the implant top (group A) and the other with microthreads placed 0.5 mm below the implant top (group B), were placed adjacent to each other in the partially edentulous areas of 20 patients. In total, 40 implants were placed. Bone loss around each implant was analyzed after 1 year of functional loading, and gingival parameters (modified plaque index and modified sulcus bleeding index) of the peri-implant soft tissue were evaluated. Bone losses after loading and gingival parameters were compared using the paired t test. Results: The average bone loss was 0.16 (SD: 0.19) mm in group A and 0.30 (SD: 0.22) mm in group B after 1-year of functional loading. The paired t test revealed a significant difference in crestal bone loss between groups A and B in individual patients (P= 0.004). No significant differences were found between the two groups for the gingival parameters. Conclusions: Less peri-implant bone loss was observed around implants with microthreads placed at the implant top (group A) compared to those in which microthreads were placed below the top (group B). These results indicated that the microthreads acted to stabilize the peri-implant marginal bone, and their locations played an important role in the stabilization process.</div>
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Comparative Analysis of Peri-Implant Marginal Bone Loss Based on Microthread Location: A 1-Year Prospective Study After Loading

Comparative Analysis of Peri-Implant Marginal Bone Loss Based on Microthread Location: A 1-Year Prospective Study After Loading

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri