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Volume 9 Issue 3 (March, 2021)

Original Articles

Clinical study on effect of implant design on primary stability, hard and soft tissue changes
Kasu Ramya Krishna Reddy, T. Krishna Mohan, G. Phani Krishna, G. Krishnaveni, D. Samyuktha

Introduction: The optimal achievement of osseointegration is multi-factorial which depends on the density and quality of bone, surgical techniques employed, and the design of the implants. Primary stability is one of the fundamental parameters that determine the success of osseointegration. A multitude of new macro and micro-designs have evolved over the years. However, the true influence of shape on primary stability is still surrounded by controversies. Materials and methods: This prospective, double-blind, randomized clinical trial was done among 20 subjects, aged between 25 and 60 years, demonstrating a motivation to receive an implant for replacement of the missing teeth. Systemically healthy subjects demonstrating -adequate height and width of D2 type of bone were included in the study. The study subjects were then randomly allocated to tapered and cylindrical implant groups. Primary stability, crestal bone loss, bleeding on probing, and mucosal thickness were the outcome parameters assessed at baseline, 3 months, and 6 months. Statistical analysis was performed using SPSS version 20 software. Results: There was a statistically significant difference in the primary stability between the study groups with higher mean values observed in the tapered implants group (76.2±1.39 vs 61±3.12; p=0.001). While differences in crestal bone loss were observed between the groups at 3 months and 6 months follow-up visits, no differences were noted in the mucosal thickness and bleeding on probing. Conclusion: The study results demonstrate that tapered implants exhibit higher primary stability and lesser crestal bone loss compared to cylindrical implants. Keywords: Cylindrical implants, osseointegration

 
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