Analysis of clinical effects and risk factors of short implant followed up for 7-9 years

doi:10.19439/j.sjos.2023.02.019

Abstract

Abstract: PURPOSE: To evaluate the long-term clinical efficacy of short implants and analyze the influencing factors of the survival rate. METHODS: A total of 178 patients who received implant therapy in the Department of Stomatology, the Fourth Affiliated Hospital of Nanchang University from January 2010 to December 2014 were selected, including 334 short implants of Bicon (implant length ≤6 mm). The basic condition, restoration design, short implant survival rate and complications were observed and analyzed. SPSS 24.0 software package was used for data analysis. RESULTS: The average follow-up time of short implants was 96±17 months. During the observation period, 20 implants failed, 1 implant had mechanical complications and 6 implants had biological complications. Based on the analysis of implants and patients, the long-term cumulative survival rate of short implants was 94.0%(over 5 years survival rate was 96.4%) and 90.4% respectively. There was no significant difference between the survival rate of short implants and the patient's gender, age, whether to use special operation and the type of jaw teeth(P<0.05). Smoking and periodontitis were risk factors for failure of short implants(P<0.05).The difference of short implant survival rate between short implants restoration with combined crowns and single crowns was statistically significant(P<0.05). The survival rate of short implant in mandible was higher than that in maxilla(P<0.05). CONCLUSIONS: Under the standards clinical program and operation, short implant can be used to shorten the implant restoration cycle and avoid complicated bone augmentation which can achieve good long-term clinical effect. Short implant should be used to strictly control the risk factors that affect the survival of short implant.

Key words: Short implant, Survival rate, Retrospective study, Failure of implantation, Bicon implant

CLC Number:

R783

YANG Jing-jing, MAO Wei-hua, YU Zheng-rong, WEI Hong-wu, GUO Shui-gen. Analysis of clinical effects and risk factors of short implant followed up for 7-9 years[J]. Shanghai Journal of Stomatology, 2023, 32(2): 214-219.

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