Análise multifatorial da perda óssea marginal em implantes sob protocolo de carga imediata sem desconexão do abutment, carga tardia não submersos e submersos: estudo clínico randomizado

• Ano de defesa: 2019
• Autor(a) principal: Giacomel, Maria Cecilia C. Lopes
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Positivo; Brasil; Pós-Graduação; Programa de Pós-Graduação em Odontologia Clínica; UP
• Palavras-chave em Português: Odontologia; Implantes dentários; Carga imediata em implantes dentários; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: https://repositorio.cruzeirodosul.edu.br/handle/123456789/2163

The objective of this research was 1) evaluate, after 12 months, the periimplant bone loss (PBL) related to different dental implant placement techniques (immediate loading without abutment disconnection(IL), delayed loading non-submerged (NS) and submerged (S)), and associated with soft tissue width, placement torque and length of the implant; 2) evaluate the influence of implant depth placement (crestal or subcrestal) on the PBL of the mentioned techniques (IL, NS and S) both using standard digital periapical radiographs in a period of 12 months. A total of 21 implants were placed in the first research, which were randomly divided in three groups according to the placement technique (IL, NS and S). For the second research a total of 48 implants were placed and then divided in crestal (n = 24) and subcrestal (n = 24), and subdivided in (IL) (n = 16), (NS) (n = 16) and (S) (n = 16). The results were statistically analyzed by the univariate linear regression method, taking in consideration significance of 0.05. Results of the first research showed that implants immediately loaded without disconnection of the abutment lost less periimplantar bone compared to those ones which remained submerged (p < 0.05). The mesial PBL was associated with the implant length (p < 0.05). The outcome of the second research, regards the placement depth, the mesial and distal PBL was larger in the crestal group compared to the subcrestal (p < 0.05). than between periimplant bone loss (PBL) and implant depth was found, with PBL of the subcrestal group 0.42 and 0.46 mm larger than the crestal one in the mesial and distal aspects respectively (p < 0.02). It is concluded that a vertical positioning of the implant platform at the level of the bone crest with immediate connection of the abutment during the surgical act promotes less periimplant bone loss, while short implants favors more.