Abstract
Purpose: The purpose of this study was to examine the relationship between the local bone density derived from Cone Beam Computed tomography (CBCT) scan from different sites in maxilla and mandible and the insertion torque values, for the success of oral implants.
Aim: The aim of the present study was to examine the correlations between the local bone density from CBCT section, and the implant stability parameters including insertion torque and the implant survival rates.
Materials and method: A total of 73 patients who reported to our unit, with missing teeth and a desire for replacement with dental implants were included in this study. A total number of 118 implants were placed from 2008 to 2011. The number of male and female patients included in the study is 43 and 30 respectively. The mean age of the patients was 43.2 years. NOBEL REPLACE Select Tapered Implant system was used for all the patients.
Results: The mean bone density of all 118 implants was 620 ± 251 HU. The mean bone density and insertion torque of the 6 failed implants was 459 131 HU and 28 5 Ncm respectively. The mean bone density and insertion torque values of the 112 successful implants was 678 217 HU and 36 2 Ncm respectively. Significant strong positive correlation was seen between bone density and torque at all sites.
Conclusion: CBCT is a useful tool to determine the bone density of the concerned areas prior to implant placement, and the valuable information derived from the CBCT about the bone quality may help clinicians to avoid placement of implants into very poorest qualities of bone, where failure is more likely.
Aim: The aim of the present study was to examine the correlations between the local bone density from CBCT section, and the implant stability parameters including insertion torque and the implant survival rates.
Materials and method: A total of 73 patients who reported to our unit, with missing teeth and a desire for replacement with dental implants were included in this study. A total number of 118 implants were placed from 2008 to 2011. The number of male and female patients included in the study is 43 and 30 respectively. The mean age of the patients was 43.2 years. NOBEL REPLACE Select Tapered Implant system was used for all the patients.
Results: The mean bone density of all 118 implants was 620 ± 251 HU. The mean bone density and insertion torque of the 6 failed implants was 459 131 HU and 28 5 Ncm respectively. The mean bone density and insertion torque values of the 112 successful implants was 678 217 HU and 36 2 Ncm respectively. Significant strong positive correlation was seen between bone density and torque at all sites.
Conclusion: CBCT is a useful tool to determine the bone density of the concerned areas prior to implant placement, and the valuable information derived from the CBCT about the bone quality may help clinicians to avoid placement of implants into very poorest qualities of bone, where failure is more likely.
| Original language | English |
|---|---|
| Journal | National Journal of Maxillofacial Surgery |
| DOIs | |
| Publication status | Accepted/In press - 2025 |