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Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone

Dental implant surgery is a common treatment for missing teeth. Its survival rate is considerably affected by host bone quality and quantity, which is often assessed prior to surgery through dental cone-beam computed tomography (CBCT). Dental CBCT was used in this study to evaluate dental implant si...

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Autores principales: Wang, Shiuan-Hui, Shen, Yen-Wen, Fuh, Lih-Jyh, Peng, Shin-Lei, Tsai, Ming-Tzu, Huang, Heng-Li, Hsu, Jui-Ting
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7555203/
https://www.ncbi.nlm.nih.gov/pubmed/32957724
http://dx.doi.org/10.3390/diagnostics10090710
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author Wang, Shiuan-Hui
Shen, Yen-Wen
Fuh, Lih-Jyh
Peng, Shin-Lei
Tsai, Ming-Tzu
Huang, Heng-Li
Hsu, Jui-Ting
author_facet Wang, Shiuan-Hui
Shen, Yen-Wen
Fuh, Lih-Jyh
Peng, Shin-Lei
Tsai, Ming-Tzu
Huang, Heng-Li
Hsu, Jui-Ting
author_sort Wang, Shiuan-Hui
collection PubMed
description Dental implant surgery is a common treatment for missing teeth. Its survival rate is considerably affected by host bone quality and quantity, which is often assessed prior to surgery through dental cone-beam computed tomography (CBCT). Dental CBCT was used in this study to evaluate dental implant sites for (1) differences in and (2) correlations between cancellous bone density and cortical bone thickness among four regions of the jawbone. In total, 315 dental implant sites (39 in the anterior mandible, 42 in the anterior maxilla, 107 in the posterior mandible, and 127 in the posterior maxilla) were identified in dental CBCT images from 128 patients. All CBCT images were loaded into Mimics 15.0 to measure cancellous bone density (unit: grayscale value (GV) and cortical bone thickness (unit: mm)). Differences among the four regions of the jawbone were evaluated using one-way analysis of variance and Scheffe’s posttest. Pearson coefficients for correlations between cancellous bone density and cortical bone thickness were also calculated for the four jawbone regions. The results revealed that the mean cancellous bone density was highest in the anterior mandible (722 ± 227 GV), followed by the anterior maxilla (542 ± 208 GV), posterior mandible (535 ± 206 GV), and posterior maxilla (388 ± 206 GV). Cortical bone thickness was highest in the posterior mandible (1.15 ± 0.42 mm), followed by the anterior mandible (1.01 ± 0.32 mm), anterior maxilla (0.89 ± 0.26 mm), and posterior maxilla (0.72 ± 0.19 mm). In the whole jawbone, a weak correlation (r = 0.133, p = 0.041) was detected between cancellous bone density and cortical bone thickness. Furthermore, except for the anterior maxilla (r = 0.306, p = 0.048), no correlation between the two bone parameters was observed (all p > 0.05). Cancellous bone density and cortical bone thickness varies by implant site in the four regions of the jawbone. The cortical and cancellous bone of a jawbone dental implant site should be evaluated individually before surgery.
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spelling pubmed-75552032020-10-19 Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone Wang, Shiuan-Hui Shen, Yen-Wen Fuh, Lih-Jyh Peng, Shin-Lei Tsai, Ming-Tzu Huang, Heng-Li Hsu, Jui-Ting Diagnostics (Basel) Article Dental implant surgery is a common treatment for missing teeth. Its survival rate is considerably affected by host bone quality and quantity, which is often assessed prior to surgery through dental cone-beam computed tomography (CBCT). Dental CBCT was used in this study to evaluate dental implant sites for (1) differences in and (2) correlations between cancellous bone density and cortical bone thickness among four regions of the jawbone. In total, 315 dental implant sites (39 in the anterior mandible, 42 in the anterior maxilla, 107 in the posterior mandible, and 127 in the posterior maxilla) were identified in dental CBCT images from 128 patients. All CBCT images were loaded into Mimics 15.0 to measure cancellous bone density (unit: grayscale value (GV) and cortical bone thickness (unit: mm)). Differences among the four regions of the jawbone were evaluated using one-way analysis of variance and Scheffe’s posttest. Pearson coefficients for correlations between cancellous bone density and cortical bone thickness were also calculated for the four jawbone regions. The results revealed that the mean cancellous bone density was highest in the anterior mandible (722 ± 227 GV), followed by the anterior maxilla (542 ± 208 GV), posterior mandible (535 ± 206 GV), and posterior maxilla (388 ± 206 GV). Cortical bone thickness was highest in the posterior mandible (1.15 ± 0.42 mm), followed by the anterior mandible (1.01 ± 0.32 mm), anterior maxilla (0.89 ± 0.26 mm), and posterior maxilla (0.72 ± 0.19 mm). In the whole jawbone, a weak correlation (r = 0.133, p = 0.041) was detected between cancellous bone density and cortical bone thickness. Furthermore, except for the anterior maxilla (r = 0.306, p = 0.048), no correlation between the two bone parameters was observed (all p > 0.05). Cancellous bone density and cortical bone thickness varies by implant site in the four regions of the jawbone. The cortical and cancellous bone of a jawbone dental implant site should be evaluated individually before surgery. MDPI 2020-09-17 /pmc/articles/PMC7555203/ /pubmed/32957724 http://dx.doi.org/10.3390/diagnostics10090710 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Shiuan-Hui
Shen, Yen-Wen
Fuh, Lih-Jyh
Peng, Shin-Lei
Tsai, Ming-Tzu
Huang, Heng-Li
Hsu, Jui-Ting
Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone
title Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone
title_full Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone
title_fullStr Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone
title_full_unstemmed Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone
title_short Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone
title_sort relationship between cortical bone thickness and cancellous bone density at dental implant sites in the jawbone
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7555203/
https://www.ncbi.nlm.nih.gov/pubmed/32957724
http://dx.doi.org/10.3390/diagnostics10090710
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