The mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments, a narrative review

Background: Angulated screw channel (ASC) abutment allows off-axis dental implants to be used in dental restorations without the need for cementation. As this is a relatively new system, research on its clinical performance is limited. Objectives: To summarize the available in-vitro and in-vivo stud...

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Main Author: Ahmed Albakri
Format: Article
Language:English
Published: Springer 2024-08-01
Series:Saudi Dental Journal
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Online Access:http://www.sciencedirect.com/science/article/pii/S1013905224001706
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author Ahmed Albakri
author_facet Ahmed Albakri
author_sort Ahmed Albakri
collection DOAJ
description Background: Angulated screw channel (ASC) abutment allows off-axis dental implants to be used in dental restorations without the need for cementation. As this is a relatively new system, research on its clinical performance is limited. Objectives: To summarize the available in-vitro and in-vivo studies on the mechanical and technical issues associated with the ASC system and compare its clinical performance with that of conventional implant-supported abutments. Methods: A comprehensive literature search in PubMed, Web of Science, and ScienceDirect databases was performed, focusing on articles about angulated (angled) screw channel (ASC) systems published in English between January 2015 and November 2023. Only in-vitro and in-vivo studies were included. Results: After analyzing the recorded articles, 26 studies (11 in vivo and 15 in vitro) were included in the final discussion and review. Conclusion: Although the ASC system is still relatively new, and is presently outperformed by conventional abutment systems in terms of technical and mechanical properties, in short- and medium-term in-vivo studies, it was shown reliable for retaining single or multiple-unit implant restorations in both posterior and anterior zones. Still, further long-term clinical research is needed to fully elucidate the risk factors associated with ASC failures.
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spelling doaj-art-6ca5f3e3cd9a4014bde2827a1f0010912025-08-20T02:56:51ZengSpringerSaudi Dental Journal1013-90522024-08-013681072107710.1016/j.sdentj.2024.06.002The mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments, a narrative reviewAhmed Albakri0Address: Department of Prosthetic Dental Sciences, College of Dentistry, P. O. Box 60169, King Saud University, West King Abdullah Road, Riyadh 11545, Saudi Arabia.; Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi ArabiaBackground: Angulated screw channel (ASC) abutment allows off-axis dental implants to be used in dental restorations without the need for cementation. As this is a relatively new system, research on its clinical performance is limited. Objectives: To summarize the available in-vitro and in-vivo studies on the mechanical and technical issues associated with the ASC system and compare its clinical performance with that of conventional implant-supported abutments. Methods: A comprehensive literature search in PubMed, Web of Science, and ScienceDirect databases was performed, focusing on articles about angulated (angled) screw channel (ASC) systems published in English between January 2015 and November 2023. Only in-vitro and in-vivo studies were included. Results: After analyzing the recorded articles, 26 studies (11 in vivo and 15 in vitro) were included in the final discussion and review. Conclusion: Although the ASC system is still relatively new, and is presently outperformed by conventional abutment systems in terms of technical and mechanical properties, in short- and medium-term in-vivo studies, it was shown reliable for retaining single or multiple-unit implant restorations in both posterior and anterior zones. Still, further long-term clinical research is needed to fully elucidate the risk factors associated with ASC failures.http://www.sciencedirect.com/science/article/pii/S1013905224001706AngulatedAngled Screw ChannelDental AbutmentsDental ImplantDental ProsthesisImplant-Supported
spellingShingle Ahmed Albakri
The mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments, a narrative review
Saudi Dental Journal
Angulated
Angled Screw Channel
Dental Abutments
Dental Implant
Dental Prosthesis
Implant-Supported
title The mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments, a narrative review
title_full The mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments, a narrative review
title_fullStr The mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments, a narrative review
title_full_unstemmed The mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments, a narrative review
title_short The mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments, a narrative review
title_sort mechanical complications and behavior of angulated dental implant abutment systems versus conventional abutments a narrative review
topic Angulated
Angled Screw Channel
Dental Abutments
Dental Implant
Dental Prosthesis
Implant-Supported
url http://www.sciencedirect.com/science/article/pii/S1013905224001706
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