Influence of microgap location and configuration on radiographic bone loss around submerged implants: An experimental study in dogs

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorChristian-Albrechts- University at Kiel-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorWeng, Dietmar-
Autor(es): dc.creatorNagata, Maria José Hitomi-
Autor(es): dc.creatorBosco, Alvaro Francisco-
Autor(es): dc.creatorDe Melo, Luiz Gustavo Nascimento-
Data de aceite: dc.date.accessioned2025-08-21T22:15:32Z-
Data de disponibilização: dc.date.available2025-08-21T22:15:32Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2011-01-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/226719-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/226719-
Descrição: dc.descriptionPurpose: The vertical location of the implant-abutment connection influences the subsequent reaction of the peri-implant bone. It is not known, however, whether any additional influence is exerted by different microgap configurations. Therefore, the radiographic bone reactions of two different implant systems were monitored for 6 months. Materials and Methods: In eight mongrel dogs, two implants with an internal Morse-taper connection (INT group) were placed on one side of the mandible; the contralateral side received two implants with an external-hex connection (EXT group). On each side, one implant was aligned at the bone level (equicrestal) and the second implant was placed 1.5 mm subcrestal. Healing abutments were placed 3 months after submerged healing, and the implants were maintained for another 3 months without prosthetic loading. At implant placement and after 1, 2, 3, 4, 5, and 6 months, standardized radiographs were obtained, and peri-implant bone levels were measured with regard to microgap location and evaluated statistically. Results: All implants osseointegrated clinically and radiographically. The overall mean bone loss was 0.68 ± 0.59 mm in the equicrestal INT group, 1.32 ± 0.49 mm in the equicrestal EXT group, 0.76 ± 0.49 mm in the subcrestal INT group, and 1.88 ± 0.81 mm in the subcrestal EXT group. The differences between the INT and EXT groups were statistically significant (paired t tests). The first significant differences between the internal and external groups were seen at month 1 in the subcrestal groups and at 3 months in the equicrestal groups. Bone loss was most pronounced in the subcrestal EXT group. Conclusions: Within the limits of this study, different microgap configurations can cause different amounts of bone loss, even before prosthetic loading. Subcrestal placement of a butt-joint microgap design may lead to more pronounced radiographic bone loss. © 2011 by Quintessence Publishing Co Inc.-
Descrição: dc.descriptionDepartment of Prosthodontics Propaedeutics and Dental Materials School of Dentistry Christian-Albrechts- University at Kiel-
Descrição: dc.descriptionDivision of Periodontics Department of Surgery and Integrated Clinic Dental School of Araçatuba Universidade Estadual Paulista, Araçatuba-
Descrição: dc.descriptionDivision of Periodontics Department of Surgery and Integrated Clinic Dental School of Araçatuba Universidade Estadual Paulista, Araçatuba-
Formato: dc.format941-946-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Oral and Maxillofacial Implants-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBone morphology-
Palavras-chave: dc.subjectCrestal implant placement-
Palavras-chave: dc.subjectImplant-abutment microgap-
Palavras-chave: dc.subjectRadiographic study-
Palavras-chave: dc.subjectSubcrestal placement-
Título: dc.titleInfluence of microgap location and configuration on radiographic bone loss around submerged implants: An experimental study in dogs-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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