Effect of different insertion torque types on stability of tapered implants with knife-edge thread design

Document Type : Original Article

Authors

1 Oral medicine, periodontology, Oral Diagnosis and Oral Radiology

2 Department of Oral Medicine, Periodontology, Diagnosis & Oral Radiology. al-azhar University

3 Oral Medicine, periodontology, Oral Diagnosis and Oral Radiology -AlAzhar University

4 Alazhar University

Abstract

Abstract
Objectives: The present study evaluated the effect of different insertion torque types on stability of tapered implants with knife- edge thread design.
Material and methods: Twenty four Patients were randomly assigned into three groups according to the peak torque value recorded during implant insertion: Group 1: low torque application (<30 N/cm). Group 2: medium torque application (30 < IT < 50 N/cm). Group 3: high torque application (>50 N/cm). Dental implants were evaluated clinically and radiographically. (IT) and (ISQ) values were recorded during implant insertion for each group. ISQ values were recorded also at 3 and 6 months. Crestal bone level were recorded using RVG at baseline, 3months and 6months. Bone density were recorded by CBCT at baseline and at 6 months after surgery.
Results: There was a positive correlation between Overall Torque and stability after 3 and 6 months. A general linear relationship between insertion torque and implant stability. High Torque group showed the higher crestal bone loss and bone density than the other groups.
Conclusion: knife edge threaded design implant showed a satisfactory stability including implants inserted with low torque. High torque group showed the highest stability and increasing in bone density, but also it showed the highest crestal bone loss.

Keywords

Al-Azhar Journal of Dental Science
Volume 26, Issue 4 - Serial Number 4
October - Oral Medicine & Surgical Sciences Issue (Oral Medicine, Oral & Maxillofacial Surgery, Oral Pathology, Oral Biology)
October 2023
Pages 531-537

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