Correlation between early perforation of cover screws and marginal bone loss: a retrospective study

Aim: This retrospective study aimed to determine the consequence of early cover screw exposure on peri-implant marginal bone level. Material and Methods: Sixty Astra Techs MicroThread implants installed in partially edentulous jaws were compared: 20 implants were placed following a two-stage pro...

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Main Author: Nele Van Assche, Bruno Collaert,
Format: Koleksi Audio Visual
Language: Bahasa Inggris
Published: Blackwell Synergy 2008
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Online Access: http://oaipmh-jogjalib.umy.ac.idkatalog.php?opo=lihatDetilKatalog&id=93241
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spelling oai:lib.umy.ac.id:932412021-06-16T13:12:34ZCorrelation between early perforation of cover screws and marginal bone loss: a retrospective studyNele Van Assche, Bruno Collaert, Aim: This retrospective study aimed to determine the consequence of early cover screw exposure on peri-implant marginal bone level. Material and Methods: Sixty Astra Techs MicroThread implants installed in partially edentulous jaws were compared: 20 implants were placed following a two-stage procedure and were unintentionally exposed to the oral cavity (two-stage exposed), 20 implants were placed following a two-stage procedure and were surgically exposed after a subgingival healing time of 3–6 months (two-stage submerged), and 20 implants were placed following a one-stage surgical protocol (one-stage). Digital radiographs were taken at implant placement for all implants, and after abutment surgery for the two-stage exposed and two-stage submerged groups or after 3 months for the one-stage group. Bone loss mesially and distally was measured with an on-screen cursor after calibration. Results: Mean bone re-modelling was 1.96mm (range: 0.2–3.2 mm) around the two-stage exposed implants, 0.01mm (range: 0.0–0.3 mm) around the two-stage submerged implants and 0.14mm (range: 0.0–1.2 mm) around the one-stage implants. Conclusion: The unintentional perforation of two-stage implants resulted in significant bone destruction, probably because the biological width was not considered.Blackwell Synergy2008Koleksi Audio Visual Bahasa Inggrishttp://oaipmh-jogjalib.umy.ac.idkatalog.php?opo=lihatDetilKatalog&id=93241
institution Universitas Muhammadiyah Yogyakarta
collection Perpustakaan Yogyakarta
language Bahasa Inggris
topic
spellingShingle
Nele Van Assche, Bruno Collaert,
Correlation between early perforation of cover screws and marginal bone loss: a retrospective study
description Aim: This retrospective study aimed to determine the consequence of early cover screw exposure on peri-implant marginal bone level. Material and Methods: Sixty Astra Techs MicroThread implants installed in partially edentulous jaws were compared: 20 implants were placed following a two-stage procedure and were unintentionally exposed to the oral cavity (two-stage exposed), 20 implants were placed following a two-stage procedure and were surgically exposed after a subgingival healing time of 3–6 months (two-stage submerged), and 20 implants were placed following a one-stage surgical protocol (one-stage). Digital radiographs were taken at implant placement for all implants, and after abutment surgery for the two-stage exposed and two-stage submerged groups or after 3 months for the one-stage group. Bone loss mesially and distally was measured with an on-screen cursor after calibration. Results: Mean bone re-modelling was 1.96mm (range: 0.2–3.2 mm) around the two-stage exposed implants, 0.01mm (range: 0.0–0.3 mm) around the two-stage submerged implants and 0.14mm (range: 0.0–1.2 mm) around the one-stage implants. Conclusion: The unintentional perforation of two-stage implants resulted in significant bone destruction, probably because the biological width was not considered.
format Koleksi Audio Visual
author Nele Van Assche, Bruno Collaert,
author_sort Nele Van Assche, Bruno Collaert,
title Correlation between early perforation of cover screws and marginal bone loss: a retrospective study
title_short Correlation between early perforation of cover screws and marginal bone loss: a retrospective study
title_full Correlation between early perforation of cover screws and marginal bone loss: a retrospective study
title_fullStr Correlation between early perforation of cover screws and marginal bone loss: a retrospective study
title_full_unstemmed Correlation between early perforation of cover screws and marginal bone loss: a retrospective study
title_sort correlation between early perforation of cover screws and marginal bone loss: a retrospective study
publisher Blackwell Synergy
publishDate 2008
url http://oaipmh-jogjalib.umy.ac.idkatalog.php?opo=lihatDetilKatalog&id=93241
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score 14.79448