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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
, 2, 2
Affiliations- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Van Yüzüncü Yıl University, Van Yüzüncü Yıl Üniversitesi, 65080, Zeve Kampüsü, Tuşba/Van, 65080 Van, Türkiye
- Department of Prosthodontics, Faculty of Dentistry, Van Yüzüncü Yıl University, Yüzüncü Yıl Üniversitesi, 65080, Zeve Kampüsü, Tuşba/Van, 65080 Van, Türkiye
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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 8 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 8 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.
Keywords
mandibular condyle, cone-beam computed tomography, quantitative evaluation, bone tissue
About this articleTitle
Evaluation of trabecular bone microstructure of mandibular condyle in edentulous, unilateral edentulous and fully dentate patients using cone-beam computed tomography
Journal
Issue
Article type
Original article
Pages
829-834
Published online
2019-12-04
Page views
1004
Article views/downloads
1120
DOI
Pubmed
Bibliographic record
Folia Morphol 2020;79(4):829-834.
Keywords
mandibular condyle
cone-beam computed tomography
quantitative evaluation
bone tissue
Authors
A. Koç
İ. Kavut
M. Uğur
References (28)- Al-Saleh MAQ, Alsufyani NA, Saltaji H, et al. MRI and CBCT image registration of temporomandibular joint: a systematic review. J Otolaryngol Head Neck Surg. 2016; 45(1): 30.
- Badel T, Marotti M, Savić Pavičin I, et al. Temporomandibular disorders and occlusion. Acta Clin Croat. 2012; 51: 419–424.
- Bogin B, Rios L. Rapid morphological change in living humans: implications for modern human origins. Comp Biochem Physiol A Moll Integr Physiol. 2003; 136(1): 71–84.
- Chiappe G, Fantoni F, Landi N, et al. Clinical value of 12 occlusal features for the prediction of disc displacement with reduction (RDC/TMD Axis I group IIa). J Oral Rehabil. 2009; 36(5): 322–329.
- Choi DY, Sun KH, Won SY, et al. Trabecular bone ratio of the mandibular condyle according to the presence of teeth: a micro-CT study. Surg Radiol Anat. 2012; 34(6): 519–526.
- Chou HY, Satpute D, Müftü A, et al. Influence of mastication and edentulism on mandibular bone density. Comput Methods Biomech Biomed Engin. 2015; 18(3): 269–281.
- de Sousa ST, de Mello VV, Magalhães BG, et al. The role of occlusal factors on the occurrence of temporomandibular disorders. Cranio. 2015; 33(3): 211–216.
- Ding M, Hvid I. Quantification of age-related changes in the structure model type and trabecular thickness of human tibial cancellous bone. Bone. 2000; 26(3): 291–295.
- Doube M. The ellipsoid factor for quantification of rods, plates, and intermediate forms in 3D geometries. Front Endocrinol. 2015; 6: 15.
- García-Fajardo PC, Casado AC, Trigo AF, et al. La oclusión como factor etiopatológico en los trastornos temporomandibulares. RCOE. 2007; 12(1-2).
- Giesen EBW, Ding M, Dalstra M, et al. Architectural measures of the cancellous bone of the mandibular condyle identified by principal components analysis. Calcif Tissue Int. 2003; 73(3): 225–231.
- Giesen EBW, Ding M, Dalstra M, et al. Changed morphology and mechanical properties of cancellous bone in the mandibular condyles of edentate people. J Dent Res. 2004; 83(3): 255–259.
- Giesen E, Ding M, Dalstra M, et al. Reduced mechanical load decreases the density, stiffness, and strength of cancellous bone of the mandibular condyle. Clinical Biomech. 2003; 18(4): 358–363.
- Hongo T, Yotsuya H, Shibuya K, et al. Quantitative and morphological studies on the trabecular bones in the condyloid processes of the Japanese mandibles. Comparisons between dentulous and edentulous specimens. Bull Tokyo Dent Coll. 1989; 30(2): 67–76.
- Ibrahim N, Parsa A, Hassan B, et al. Diagnostic imaging of trabecular bone microstructure for oral implants: a literature review. Dentomaxillofac Radiol. 2013; 42(3): 20120075.
- Koç A, Eroğlu CN, Bilgili E. Assessment of prevalence and volumetric estimation of possible Stafne bone concavities on cone beam computed tomography images. Oral Radiol. 2020; 36(3): 254–260.
- Koç C, Sönmez G, Yılmaz F, et al. Comparison of the accuracy of periapical radiography with CBCT taken at 3 different voxel sizes in detecting simulated endodontic complications: an ex vivo study. Dentomaxillofac Radiol. 2018; 47(4): 20170399.
- Liang X, Liu S, Qu X, et al. Evaluation of trabecular structure changes in osteoarthritis of the temporomandibular joint with cone beam computed tomography imaging. Oral Surg Oral Med Oral Pathol Oral Radiol. 2017; 124(3): 315–322.
- Liu ZJ, Yamagata K, Kasahara Y, et al. Electromyographic examination of jaw muscles in relation to symptoms and occlusion of patients with temporomandibular joint disorders. J Oral Rehabil. 1999; 26(1): 33–47.
- Manfredini D, Castroflorio T, Perinetti G, et al. Dental occlusion, body posture and temporomandibular disorders: where we are now and where we are heading for. J Oral Rehabil. 2012; 39(6): 463–471.
- Merrot O, Vacher C, Merrot S, et al. Changes in the edentate mandible in the elderly. Surg Radiol Anat. 2005; 27(4): 265–270.
- Milam SB. Pathogenesis of degenerative temporomandibular joint arthritides. Odontology. 2005; 93(1): 7–15.
- Nassif NJ, Al-Salleeh F, Al-Admawi M. The prevalence and treatment needs of symptoms and signs of temporomandibular disorders among young adult males. J Oral Rehabil. 2003; 30(9): 944–950.
- Parsa A, Ibrahim N, Hassan B, et al. Bone quality evaluation at dental implant site using multislice CT, micro-CT, and cone beam CT. Clin Oral Implants Res. 2015; 26(1): e1–e7.
- Sugisaki M, Agematsu H, Matsunaga S, et al. Three-dimensional analysis of the internal structure of the mandibular condyle in dentulous and edentulous jaws using micro-CT. Cranio. 2009; 27(2): 78–87.
- Wang C, Yin X. Occlusal risk factors associated with temporomandibular disorders in young adults with normal occlusions. Oral Surg Oral Med Oral Pathol Oral Radiol. 2012; 114(4): 419–423.
- Wang MQ, Xue F, He JJ, et al. Missing posterior teeth and risk of temporomandibular disorders. J Dent Res. 2009; 88(10): 942–945.
- Zhang J, Jiao K, Zhang M, et al. Occlusal effects on longitudinal bone alterations of the temporomandibular joint. J Dent Res. 2013; 92(3): 253–259.
