Factors influencing implant and prosthesis survival in zygomatic implant-supported fixed rehabilitation: a retrospective study

Autor: Luis Eduardo Marques Padovan, Dalton Suzuki, Larissa Carvalho Trojan, Camila Pereira Vianna, Waleska Caldas, Leandro Eduardo Klüppel
Rok vydání: 2021
Předmět:
Zdroj: Odontology. 109:965-972
ISSN: 1618-1255
1618-1247
Popis: The aim of this retrospective study was to evaluate mid-term implant and prosthesis survival in patients with edentulous atrophic maxillae submitted to zygomatic implant-supported fixed rehabilitation and to identify possible related risk factors. Data were collected from records of patients with edentulous atrophic maxillae, in good general health and who were rehabilitated by means of acrylic resin full-arch screw-retained prosthesis supported by at least one zygomatic implant, between the years of 2006–2017. Implant and prosthesis survival rates were calculated. The association between implant and prosthesis loss and quantitative and qualitative variables of interest was verified with t tests and Fisher’s exact tests, respectively. For the significant variables in the latter, odds ratio and 95% confidence intervals were additionally calculated. The sample comprised 66 patients in whom 171 zygomatic implants were placed to support maxillary screw-retained full-arch prostheses. Implant and prosthesis survival rates of 94.15% and 92.4%, respectively, were observed in a mean of 3.6 years of follow-up (up to 11.7 years). Implant loss was 4.33 more likely to occur when adverse events were recorded after the procedure of implant placement (P = 0.026) and 10.31 more likely to occur in implants that had their prosthesis repaired during follow-up visits (P = 0.004). Prosthesis loss was 22.00 times more likely to occur when implants were previously lost (P
Databáze: OpenAIRE
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