Thales Fabro Vanzela Sverzut1, Alexander Tadeu Sverzut2, Alexandre Elias Trivellato3, Cássio Edvard Sverzut4. 1. Residency Training Program in Oral and Maxillofacial Surgery, School of Dentistry of Ribeirão Preto of the University of São Paulo, Avenida Do Café, s/n, Monte Alegre, Ribeirão Preto, São Paulo, 14040-904, Brazil. 2. Department of Oral Diagnosis, Maxillofacial Surgery Division, Piracicaba Dental School of the University of Campinas, Av. Limeira, 901, Bairro Areião, Piracicaba, São Paulo, 13414-903, Brazil. 3. Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto of the University of São Paulo, Avenida Do Café, s/n, Monte Alegre, Ribeirão Preto, São Paulo, 14040-904, Brazil. 4. Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto of the University of São Paulo, Avenida Do Café, s/n, Monte Alegre, Ribeirão Preto, São Paulo, 14040-904, Brazil. cesve@forp.usp.br.
Abstract
PURPOSE: This present study aimed to retrospectively evaluate the predictability of using three-dimensional models (TDMs) to plan the preoperative lengths of zygomatic implants (ZIs). METHODS: The records of all patients that received such implants between March 2007 and March 2019 were evaluated. The ZI lengths predicted on the TDMs were compared to the lengths of the implants the patients received. RESULTS: In total, the records of 74 patients were evaluated, of which 37 records met the criteria of inclusion, and were included in the study. Twenty-seven (73%) of the patients were female and 10 (27%) were male, ranging from 34 to 80 years of age, with the average age being 55.7 years. Seventeen (43.2%) of these patients were classified as ASA I and 21 (56.8%) as ASA II. A total of 142 ZIs were planned and installed in the time frame mentioned. Without distinguishing the region of the maxilla, the implants used were, on average, 1.1 mm larger in length than those initially planned. CONCLUSION: Overall, the data indicates moderate agreement between the planned and surgical lengths of the ZIs and indicates that using TDMs is a predictable and reliable preoperative planning technique of the length of posterior ZIs.
PURPOSE: This present study aimed to retrospectively evaluate the predictability of using three-dimensional models (TDMs) to plan the preoperative lengths of zygomatic implants (ZIs). METHODS: The records of all patients that received such implants between March 2007 and March 2019 were evaluated. The ZI lengths predicted on the TDMs were compared to the lengths of the implants the patients received. RESULTS: In total, the records of 74 patients were evaluated, of which 37 records met the criteria of inclusion, and were included in the study. Twenty-seven (73%) of the patients were female and 10 (27%) were male, ranging from 34 to 80 years of age, with the average age being 55.7 years. Seventeen (43.2%) of these patients were classified as ASA I and 21 (56.8%) as ASA II. A total of 142 ZIs were planned and installed in the time frame mentioned. Without distinguishing the region of the maxilla, the implants used were, on average, 1.1 mm larger in length than those initially planned. CONCLUSION: Overall, the data indicates moderate agreement between the planned and surgical lengths of the ZIs and indicates that using TDMs is a predictable and reliable preoperative planning technique of the length of posterior ZIs.