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ORIGINAL ARTICLES
Published online: 2019-12-04
Submitted: 2019-10-10
Accepted: 2019-11-22
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Evaluation of trabecular bone microstructure of mandibular condyle in edentulous, unilateral edentulous and fully dentate patients using cone beam computed tomography

Alaettin Koç, İdris Kavut, Mehmet Uğur
DOI: 10.5603/FM.a2019.0133
·
Pubmed: 31802471

open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2019-12-04
Submitted: 2019-10-10
Accepted: 2019-11-22

Abstract

Background: The aim of this study was to compare the trabecular bone microstructure of the mandibular condyle in edentulous, unilateral edentulous (Kennedy Class II), and fully dentate patients. Materials and methods: The study used the cone-beam computed tomography (CBCT) images of 17 fully dentate (34 condyles), 16 edentulous (32 condyles), and 17 unilateral edentulous patients (34 condyles) aged 19 to 80 years. The trabecular bone microstructure of the mandibular condyle was evaluated on eight consecutive cross-sectional images of these patients. In the microstructure analysis, structural model index (SMI), ellipsoid factor (EF), bone volume fraction (BV/TV), trabecular thickness (Tb.Th) and trabecular seperation (Tb.Sp) were measured. Results: There was no significant difference between the mean SMI, BV/TV, EF and Tb.Th microstructure values of each group (p = 0.243, p = 0.095, p = 0.962, p = 0.095, respectively). However, there was significant difference in terms of mean Tb.Sp between the groups (p =0.021). The trabecular structure in all three groups was more rod-shaped. No correlation was found between age factor and microstructure values. Conclusions: Considering the in vivo microstructure analysis of CBCT images, it can be said that teeth loss does not have a significant effect on the microstructure parameters excluding Tb.sp of mandible condyles and does not affect mandibular condyle trabecular endurance.

Abstract

Background: The aim of this study was to compare the trabecular bone microstructure of the mandibular condyle in edentulous, unilateral edentulous (Kennedy Class II), and fully dentate patients. Materials and methods: The study used the cone-beam computed tomography (CBCT) images of 17 fully dentate (34 condyles), 16 edentulous (32 condyles), and 17 unilateral edentulous patients (34 condyles) aged 19 to 80 years. The trabecular bone microstructure of the mandibular condyle was evaluated on eight consecutive cross-sectional images of these patients. In the microstructure analysis, structural model index (SMI), ellipsoid factor (EF), bone volume fraction (BV/TV), trabecular thickness (Tb.Th) and trabecular seperation (Tb.Sp) were measured. Results: There was no significant difference between the mean SMI, BV/TV, EF and Tb.Th microstructure values of each group (p = 0.243, p = 0.095, p = 0.962, p = 0.095, respectively). However, there was significant difference in terms of mean Tb.Sp between the groups (p =0.021). The trabecular structure in all three groups was more rod-shaped. No correlation was found between age factor and microstructure values. Conclusions: Considering the in vivo microstructure analysis of CBCT images, it can be said that teeth loss does not have a significant effect on the microstructure parameters excluding Tb.sp of mandible condyles and does not affect mandibular condyle trabecular endurance.

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Keywords

mandibular condyle, cone beam computed tomography, quantitative evaluation, bone tissue

About this article
Title

Evaluation of trabecular bone microstructure of mandibular condyle in edentulous, unilateral edentulous and fully dentate patients using cone beam computed tomography

Journal

Folia Morphologica

Issue

Ahead of Print

Published online

2019-12-04

DOI

10.5603/FM.a2019.0133

Pubmed

31802471

Keywords

mandibular condyle
cone beam computed tomography
quantitative evaluation
bone tissue

Authors

Alaettin Koç
İdris Kavut
Mehmet Uğur

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