RESUMO
PURPOSE: The purpose of this clinical investigation was to evaluate the treatment outcome with zygoma implants with regard to implant survival, patient satisfaction, and function of prosthesis replacement after 3 years. PATIENTS AND METHODS: The treatment outcome of 76 patients treated with 145 zygoma fixtures at 16 centers was evaluated with regard to implant survival. Status of peri-implant mucosa and amount of plaque were registered annually. Patients' and dentists' evaluations of the functional and esthetic outcome of the treatment were assessed at delivery of prosthesis and thereafter at each follow-up visit. RESULTS: Sixty of 76 patients were followed for 3 years after prosthetic delivery. Five of 145 placed zygoma implants failed during the course of the study resulting in an overall implant survival rate of 96.3%. At the 3-year follow-up, 75% of the implants sites were registered with normal peri-implant mucosa and 68% with no visible plaque. The patients were fully satisfied with the esthetic and functional outcome of the treatment in 86% and 71%, respectively, at the 3-year follow-up visit. All reported data from dentists scored from acceptable to excellent. CONCLUSION: The multicenter study showed a high predictability of the zygoma implant-supported rehabilitation.
Assuntos
Perda do Osso Alveolar/cirurgia , Implantação Dentária Endóssea/métodos , Prótese Dentária Fixada por Implante , Arcada Edêntula/reabilitação , Doenças Maxilares/cirurgia , Implante de Prótese Maxilofacial/métodos , Adulto , Idoso , Perda do Osso Alveolar/complicações , Perda do Osso Alveolar/patologia , Implantes Dentários , Prótese Total , Feminino , Seguimentos , Humanos , Arcada Edêntula/cirurgia , Masculino , Maxila/patologia , Maxila/cirurgia , Doenças Maxilares/complicações , Doenças Maxilares/patologia , Seio Maxilar/cirurgia , Pessoa de Meia-Idade , Satisfação do Paciente , Índice de Gravidade de Doença , Resultado do Tratamento , Zigoma/cirurgiaAssuntos
Implantes Dentários , Arcada Edêntula/cirurgia , Maxila/cirurgia , Zigoma/cirurgia , Atrofia , Dente Suporte , Implantação Dentária Endóssea/instrumentação , Implantação Dentária Endóssea/métodos , Planejamento de Prótese Dentária , Prótese Dentária Fixada por Implante , Planejamento de Dentadura , Humanos , Consentimento Livre e Esclarecido , Arcada Edêntula/reabilitação , Maxila/patologia , Osseointegração/fisiologia , Planejamento de Assistência ao Paciente , Complicações Pós-Operatórias , Estresse Mecânico , Tomografia Computadorizada por Raios XRESUMO
OBJECTIVES: In the light microscope compare the amount of bone saucerization for non-threaded cylindrical and threaded implant designs in retrieved samples from patients. MATERIAL AND METHOD: Consecutively received retrieved oral implants from 117 patients, whereof 85 non-threaded cylindrical and 85 Brånemark implants, have been included in the study. For 75 non-threaded cylindrical and 46 Brånemark implants was the entire implant length available for calculation. Undecalcified ground sections were investigated in the light microscope with calculation of percentage of implant length coronal to the first bone-implant contact and percentage of bone to implant contact. RESULTS: Mean value for implant length coronal to first bone-implant contact was 65%, standard error of the mean (SEM) 3 (range 0-100%), for non-threaded cylindrical implants and 43%, SEM 6 (range 0-100%) for Brånemark implants. Mean values of bone contact along the entire implant length was 23%, SEM 2 (range 0-65%), for the non-threaded cylindrical implants and 33%, SEM 5 (range 0-93%) for the Brånemark implants. CONCLUSION: Within the limitations of this retrospective, retrieval study non-threaded cylindrical implants demonstrated a greater bone saucerization when evaluated in the light microscope.
Assuntos
Implantes Dentários , Planejamento de Prótese Dentária , Adulto , Idoso , Perda do Osso Alveolar/patologia , Processo Alveolar/patologia , Materiais Revestidos Biocompatíveis/química , Falha de Restauração Dentária , Durapatita/química , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osseointegração , Infecções Relacionadas à Prótese/patologia , Estudos Retrospectivos , Propriedades de Superfície , Titânio/químicaRESUMO
PURPOSE: To evaluate treatment outcome with Zygoma fixtures (Nobel Biocare, Göteborg, Sweden) with regard to fixture survival, patient satisfaction, and function of prosthesis replacement. MATERIALS AND METHODS: The treatment outcome of 76 patients treated with 145 Zygoma fixtures at 16 centers was evaluated. Patient's and dentist's evaluations of the functional and aesthetic outcome of the treatment were assessed at delivery of prosthesis and at the 1-year follow-up visit. At the 1-year follow-up visit, the status of the peri-implant mucosa around the abutments and the amount of plaque were registered. RESULTS: Sixty-six of the 76 patients, with 124 Zygoma fixtures supporting the prosthetic restorations, were evaluated at the 1-year follow-up. The overall survival rate for the Zygoma fixtures was 97.9% after 1-year of follow-up. Eighty percent of the patients were fully satisfied with both aesthetic and functional outcome at the time of prosthetic insertion and at the 1-year follow-up. All reported data from the dentists, with the exception of one restoration with several abutment screw loosenings, scored from acceptable to excellent for the aesthetic and functional outcome of the treatment. The status of peri-implant mucosa was recorded as normal in approximately 60% of the sites. Plaque, when present, was more often detected on the palatal surfaces compared with the buccal surfaces. CONCLUSION: This 1-year follow-up of Zygoma fixtures has shown good results with an acceptable number of minor complications and a majority of satisfied patients.
