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KMID : 0355620210470030153
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Journal of Korean Association of Oral and Maxillofacial Surgeons
2021 Volume.47 No. 3 p.153 ~ p.174
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Bone loss-related factors in tissue and bone level dental implants: a systematic review of clinical trials
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Mortazavi Hamed
Khodadoustan Amin
Kheiri Aida
Kheiri Lida
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Abstract
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Dental implants are popular for dental rehabilitation after tooth loss. The goal of this systematic review was to assess bone changes around bone-level and tissue-level implants and the possible causes. Electronic searches of PubMed, Google Scholar, Scopus, and Web of Science, and a hand search limited to English language clinical trials were performed according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines up to September 2020. Studies that stated the type of implants used, and that reported bone-level changes after insertion met the inclusion criteria. The risk of bias was also evaluated. A total of 38 studies were included. Eighteen studies only used bone-level implants, 10 utilized tissue-level designs and 10 observed bone-level changes in both types of implants. Based on bias assessments, evaluating the risk of bias was not applicable in most studies. There are vast differences in methodologies, follow-ups, and multifactorial characteristics of bone loss around implants, which makes direct comparison impossible. Therefore, further well-structured studies are needed.
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KEYWORD
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Alveolar bone loss, Bone-implant interface, Bone resorption, Dental implants, Dental implant-abutment design
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