HEAT GENERATION DURING IMPLANT PLACEMENT IN HIGH-DENSITY BONE: EFFECT OF DIFFERENT DRILLING TECHNIQUES | ||||
| Alexandria Dental Journal | ||||
| Article 10, Volume 46, Issue 2, August 2021, Page 139-145 PDF (1.37 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/adjalexu.2021.37672.1093 | ||||
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| Authors | ||||
Mostafa Ahmed Aboulfath   1; Mohamed S. El-Attar2; Osama A. El-Samni3
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| 1Prosthodontics Department, Faculty of Dentistry, Alexandria University, Egypt | ||||
| 2Professor of Prosthodontics Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt. | ||||
| 3Professor and Head of Thermal Eng. Division of Mechanical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt. | ||||
| Abstract | ||||
| ABSTRACT Introduction: A precise drilling-sequence-protocol is essential for long-term dental implant success in high bone density (mandibular cortical bone of D1-quality). Cone beam computed tomography (CBCT) radiographic imaging and CBCT-based construction of surgical guides have been substantial for diagnosis and treatment planning. Objectives: The study aimed to measure the effect of different guided drilling techniques on the amount of heat generated during implant placement in high density. Materials and Methods: Twenty-four osteotomies for implant placement, divided equally into three groups, to test the effect of the three drilling techniques " Undersized Drilling (UD), Undersized Drilling + Ridge Spreader size 4 (UD+RS4) and Undersized Drilling + counter sink size 4 (UD+CS4) techniques". Heat generation was assessed using K-type thermocouple. Drilling and thermocouple canals were guided by the surgical template. Bone assessment, virtual planning of the implants and surgical guide construction were based on radiographic CBCT-imaging and software-based processing. Insertion torque values (ITVs) were recorded from readings of a geared motor. Results: The thermocouple results showed the least significant difference at 10 mm depth. At 5mm depth, a significant decrease in the temperature difference of the UD+RS4 group and UD+CS4 group compared to UD group was observed. At 1mm depth, there was a significant difference between the UD group and the two other groups. The UD group showed the maximum peak ITV. Conclusion: the results suggest possible advantages when self-tapping implants are inserted into high density cortical bone of D1-quality by a countersink drill since it provides lesser temperature increase at insertion. | ||||
| Keywords | ||||
| CBCT; Drilling techniques; Insertion torque value; Surgical guide; Thermocouple | ||||
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