Influence of Posterior Mandibular Dimensions on Alveolar Bone Microarchitecture
| Autor: | Alberto Monje, Yiqun Wu, Jesús Montanero-Fernández, Feng Wang, Pablo Galindo-Moreno, Hom-Lay Wang, Rachel A. Sheridan, Wei Huang, Wenjie Zhou |
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| Rok vydání: | 2017 |
| Předmět: |
Cone beam computed tomography
Materials science business.industry medicine.medical_treatment Dentistry 030206 dentistry 02 engineering and technology General Medicine Significant negative correlation 021001 nanoscience & nanotechnology 03 medical and health sciences 0302 clinical medicine Missing molar Statistical significance medicine Oral Surgery 0210 nano-technology Core biopsy Dental implant business Nuclear medicine Dental alveolus Inferior alveolar canal |
| Zdroj: | The International Journal of Oral & Maxillofacial Implants. 32:423-430 |
| ISSN: | 0882-2786 |
| Popis: | / Montanero-Fernandez, Jesus / Sheridan, Rachel A. / Wang, Hom-Lay / Wang, Feng Purpose: The aim of this study was to investigate the influence of posterior mandibular dimensions (height and width at various levels) on alveolar bone microarchitecture using microcomputed tomography (micro- CT). Materials and Methods: Partially edentulous subjects with one missing molar were included in the study. A bone core biopsy was performed at the site of planned implant surgery. For each patient, alveolar morphologic and architectural characteristics were analyzed using cone beam computed tomography (CBCT) and micro-CT imaging. Two parameters for height (apicocoronal residual height [RH] and residual ridge from inferior alveolar canal [RHN]) and three for buccolingual width (residual width at 5 mm [RW1], at 10 mm [RW2], and at 15 mm [RW3]) were determined using CBCT. Additionally, 10 parameters were obtained from micro-CT to determine microarchitecture. Pearson product-moment correlation coefficients were calculated to examine the correlation between the morphologic and microarchitectural variables. Results: Significant positive correlations (P < .05) were found between RH and bone volumetric fraction (BV/TV) (rs = 0.34) and trabecular thickness (Tb.Th) (rs = 0.45). A significant negative correlation was found between RH and the bone-specific surface (BS/BV) (rs = -0.34). A strong significant negative correlation was found between trabecular spacing (Tb.Sp) and RW1 (rs = -0.42). None of the other variables reached statistical significance. Conclusion: Posterior mandibular dimensions may affect bony architectural characteristics. |
| Databáze: | OpenAIRE |
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