Three-Dimensional Alveolar Bone Morphology Analysis Using Computed Tomography

1998 ◽  
Vol 69 (5) ◽  
pp. 584-589 ◽  
Author(s):  
Toru Naito ◽  
Ryuji Hosokawa ◽  
Makoto Yokota
Keyword(s):  
Computed Tomography ◽  
Alveolar Bone ◽  
Three Dimensional ◽  
Bone Morphology ◽  
Morphology Analysis

scholarly journals Microstructural Observation with MicroCT and Histological Analysis of Human Alveolar Bone Biopsy from a Planned Implant Site: A Case Report

2013 ◽  
Vol 7 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Emi Yamashita-Mikami ◽  
Mikako Tanaka ◽  
Naoki Sakurai ◽  
Kazuho Yamada ◽  
Hayato Ohshima ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Bone Tissue ◽  
Alveolar Bone ◽  
Bone Biopsy ◽  
Three Dimensional ◽  
Bone Sample ◽  
Biopsy Sample ◽  
Micro Computed Tomography ◽  
Metabolic Markers ◽  
Normal Ranges

The subject was a 53-year-old male. An alveolar bone sample was obtained from the site of the lower left first molar, before dental implant placement. Although the details of the trabecular structure were not visible with conventional computed tomography, micro-computed tomography (microCT) three-dimensional images of the alveolar bone biopsy sample showed several plate-like trabeculae extending from the lingual cortical bone. Histological observations of the bone sample revealed trabeculae, cuboidal osteoblasts, osteoclasts and hematopoietic cells existing in the bone tissue at the implantation site. Bone metabolic markers and calcaneal bone density were all within normal ranges, indicating no acceleration of the patient’s bone metabolism.Using microCT, and histological and histomorphometrical techniques, a great deal of valuable information about the bone tissue was obtained from a biopsy sample extracted from the patient’s planned implant site.

Mesial and distal alveolar bone morphology in maxillary canines moved into the grafted alveolar cleft: Computed tomography evaluation

2017 ◽  
Vol 151 (5) ◽  
pp. 869-877 ◽  
Author(s):  
Daniela Garib ◽  
Camila Massaro ◽  
Marilia Yatabe ◽  
Guilherme Janson ◽  
José Roberto P. Lauris
Keyword(s):  
Computed Tomography ◽  
Alveolar Bone ◽  
Bone Morphology ◽  
Alveolar Cleft

scholarly journals A novel method for alveolar bone grafting assessment in cleft lip and palate patients: cone-beam computed tomography evaluation

2020 ◽  
Author(s):  
Marcin Stasiak ◽  
Anna Wojtaszek-Słomińska ◽  
Bogna Racka-Pilszak
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Bone Grafting ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Bone Architecture ◽  
Cone Beam ◽  
Bone Morphology ◽  
Alveolar Bone Grafting

Abstract Objectives This retrospective cross-sectional study aimed to present a new method for secondary alveolar bone grafting (SABG) assessment and to qualitatively evaluate the SABG results in unilateral cleft lip and palate patients. Materials and methods Research was conducted according to the STROBE guidelines. The study group consisted of 21 patients with a mean age of 16 years. High-resolution cone-beam computed tomography (CBCT) was performed at least 1 year after grafting. The experimental side was the cleft side, and the contralateral side without a congenital cleft was the control. Measurements were performed at four levels of the maxillary central incisors’ roots according to the new scale with scores from 0 to 3. The sum of the scores provided a general assessment of bone architecture. The Wilcoxon signed-rank test was used for intergroup comparisons, and a Kappa coefficient was used for reproducibility measurements. Results High individual variability was found, and the bone architecture was significantly worse on the cleft side than on the noncleft side. The results showed 28.57% failure, 33.33% poor, 19.05% moderate, and 19.05% good results from the surgical procedure. Kappa coefficients produced results from 0.92 to 1.00 for intra-rater and from 0.81 to 1.00 for inter-rater reproducibility. Conclusions CBCT provides detailed information about alveolar bone morphology. The new assessment method is useful at every treatment stage and provides excellent repeatability. SABG did not provide good bone morphology, in most cases. Clinical relevance This research presents a new universal alternative for the assessment of SABG by utilizing CBCT.

Three-Dimensional Quantification of Alveolar Bone Loss inPorphyromonas gingivalis-Infected Mice Using Micro-Computed Tomography

2005 ◽  
Vol 76 (8) ◽  
pp. 1282-1286 ◽  
Author(s):  
Asaf Wilensky ◽  
Yankel Gabet ◽  
Hiromichi Yumoto ◽  
Yael Houri-Haddad ◽  
Lior Shapira
Keyword(s):  
Computed Tomography ◽  
Bone Loss ◽  
Alveolar Bone ◽  
Three Dimensional ◽  
Alveolar Bone Loss ◽  
Micro Computed Tomography

scholarly journals Morphometric evaluation of changes in the alveolar bone and roots of the maxillary anterior teeth before and after en masse retraction using cone-beam computed tomography

2012 ◽  
Vol 83 (2) ◽  
pp. 212-221 ◽  
Author(s):  
Hyo-Won Ahn ◽  
Sung Chul Moon ◽  
Seung-Hak Baek
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Root Resorption ◽  
Three Dimensional ◽  
Cone Beam ◽  
Anterior Teeth ◽  
Labial Side ◽  
En Masse Retraction ◽  
Total P

ABSTRACT Objective: To evaluate the morphometric changes in the alveolar bone and roots of the maxillary anterior teeth (MXAT) after en masse retraction with maximum anchorage (EMR-MA). Materials and Methods: The samples consisted of 37 female adult patients who had Class I dentoalveolar protrusion (CI-DAP) and were treated by extraction of the first premolars and EMR-MA. Using three-dimensional cone-beam computed tomography taken before treatment and after space closure, the maxillary central incisors (MXCI, N  =  66), lateral incisors (MXLI, N  =  69), and canines (MXC, N  =  69) were superimposed using individual reference planes. After alveolar bone area (ABA), vertical bone level (VBL), root length (RL), root area (RA), and prevalence of dehiscence (PD) were measured at the cervical, middle, and apical levels, statistical analyses were performed. Results: On the palatal side, ABA significantly decreased in all levels of MXAT (P < .001; middle of MXC, P < .01). MXCI and MXLI exhibited a greater decrease in the ratio of change in palatal ABA than did MXC (cervical, P < .01; middle and apical, P < .05; total, P < .001). Palatal/labial ABA ratios decreased in MXCI (cervical, middle, total, P < .001; apical, P < .05) and MXLI (cervical, P < .001; apical, P < .05). They showed greater amounts and ratios of change in VBL on the palatal side compared to the labial side (all P < .001). The palatal side showed more PD in the cervical area than did the labial side (MXCI and MXLI, P < .001; MXC, P < .01). Significant root resorption occurred in MXAT (RL and RA, all P < .001). Conclusions: During EMR-MA in cases with CI-DAP, ABA and VBL on the palatal side and RL and RA of MXCI and MXLI were significantly decreased.

A Cone-Beam Computed Tomographic Study of Alveolar Bone Morphology in Patients With Unilateral Cleft Lip and Palate

2019 ◽  
Vol 57 (3) ◽  
pp. 273-281
Author(s):  
Najmeh Movahhedian ◽  
Mehrdad Vossoughi ◽  
Mahtab Hajati-Sisakht
Keyword(s):  
Computed Tomography ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Cone Beam ◽  
Bone Thickness ◽  
Bone Morphology ◽  
Computed Tomographic ◽  
Control Side ◽  
Bone Height

Objective: To evaluate the bony support around the teeth adjacent to the unilateral cleft lip and palate (ULCLP) using cone-beam computed tomography. Methods and Materials: Cone-beam computed tomographies of 48 cleft-adjacent teeth (28 anterior and 20 posterior to the cleft) and 48 noncleft control teeth were evaluated. The alveolar bone thickness at 3 and 6 mm apical to the cement–enamel junction (CEJ), the distance between the alveolar crest and CEJ (Alv-CEJ), and the presence of fenestration were assessed in buccal, palatal, and proximal surfaces. Results: The alveolar bone on the buccal and palatal sides of the teeth anterior to the cleft was significantly thinner than the noncleft teeth (all P < .05). The Alv-CEJ was significantly greater on the buccal and distal surfaces of the teeth anterior to the cleft ( P < .001 and P = .010, respectively) and on the palatal and mesial surfaces of the teeth posterior to the cleft ( P = .024 and P = .003, respectively) when compared to the noncleft teeth. The frequency of reduced alveolar bone height (>2 mm) was higher than noncleft side for buccal and distal sides of the teeth anterior to the cleft ( P = .016 and .006, respectively) and the buccal and mesial sides of the teeth posterior to the cleft ( P = .008 and <.001, respectively). The teeth anterior to the cleft had a higher prevalence of fenestration ( P = .004). Conclusion: Reduced alveolar bone height is more common in the cleft side compared to the control side. The teeth anterior to the ULCLP have thinner alveolar bone support and higher frequency of fenestration.

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