IADR Abstract Archives
Comparison of prognosis of the remaining teeth at the jaw inserted prosthesis between dental implants and removable partial dentures for partial edenturism
Objectives: The aim of this retrospective study was to compare the long-term survival and complication-free rates of the remaining teeth at the jaw inserted the implant supported fixed partial dentures (ISFPs) or these inserted removable partial dentures (RPDs).
Methods: The subjects were patients with ISFPs or RPDs inserted at Hokkaido University Hospital from 2003 to 2016. Patients who had complete dentures or an observation period of less than one year were excluded. We obtained the patient’s age, sex, Eichner classification and type of prostheses. The endpoint of tooth survival was defined as extraction. Complications were defined as fracture of prostheses, caries, periapical disease, periodontal disease or loss of retention of prostheses. The ten-year survival and complication-free rates of the remaining teeth at the jaw inserted prostheses were estimated by Kaplan-Meier analysis. Differences of these rates for the prostheses were evaluated using the log-rank test (α= 0.05).
Results: Two hundred thirty-three patients (ISFP: n=89, RPD: n=144) were selected. The ten-year survival rate of the teeth adjacent to edentulous spaces were 92.8% and 89.7%, respectively. Complication-free rates of these were 61.9% and 56.9%, respectively. On the other hands, survival rates of the remaining teeth at the jaw inserted ISFPs or RPDs except for the teeth adjacent to edentulous spaces were 98.1% and 91.6%, respectively. Complication-free rates of these were 79.0% and 65.2% respectively. There was no significant difference in survival rate and complication-free rate of the teeth adjacent to edentulous spaces between ISFP and RPD groups. However, there was significant difference in the remaining teeth at the jaw inserted prostheses except these teeth.
Conclusions: In this retrospective study, It was suggested that the remaining teeth at the jaw inserted ISFPs except for the teeth adjacent to edentulous spaces showed higher the survival rates and complication-free rates than these inserted RPDs. (299)
Methods: The subjects were patients with ISFPs or RPDs inserted at Hokkaido University Hospital from 2003 to 2016. Patients who had complete dentures or an observation period of less than one year were excluded. We obtained the patient’s age, sex, Eichner classification and type of prostheses. The endpoint of tooth survival was defined as extraction. Complications were defined as fracture of prostheses, caries, periapical disease, periodontal disease or loss of retention of prostheses. The ten-year survival and complication-free rates of the remaining teeth at the jaw inserted prostheses were estimated by Kaplan-Meier analysis. Differences of these rates for the prostheses were evaluated using the log-rank test (α= 0.05).
Results: Two hundred thirty-three patients (ISFP: n=89, RPD: n=144) were selected. The ten-year survival rate of the teeth adjacent to edentulous spaces were 92.8% and 89.7%, respectively. Complication-free rates of these were 61.9% and 56.9%, respectively. On the other hands, survival rates of the remaining teeth at the jaw inserted ISFPs or RPDs except for the teeth adjacent to edentulous spaces were 98.1% and 91.6%, respectively. Complication-free rates of these were 79.0% and 65.2% respectively. There was no significant difference in survival rate and complication-free rate of the teeth adjacent to edentulous spaces between ISFP and RPD groups. However, there was significant difference in the remaining teeth at the jaw inserted prostheses except these teeth.
Conclusions: In this retrospective study, It was suggested that the remaining teeth at the jaw inserted ISFPs except for the teeth adjacent to edentulous spaces showed higher the survival rates and complication-free rates than these inserted RPDs. (299)