scholarly journals Correlation between Dental Vestibular–Palatal Inclination and Alveolar Bone Remodeling after Orthodontic Treatment: A CBCT Analysis

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4225
Author(s):  
Cinzia Maspero ◽  
Francesca Gaffuri ◽  
Iury O. Castro ◽  
Valentina Lanteri ◽  
Alessandro Ugolini ◽  
...  
Keyword(s):  
Bone Remodeling ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Linear Regression Analysis ◽  
Three Dimensional ◽  
3D Analysis ◽  
Bone Thickness ◽  
Anterior Teeth ◽  
Alveolar Bone Remodeling ◽  
Torque Values

The aim of this study was to evaluate the correlation between dental vestibular–palatal inclination changes and the cortical bone remodeling after fixed orthodontic treatment using cone beam computed tomography (CBCT). Twenty-two patients with Angle Class I malocclusion, permanent dentition, and mild to moderate dental crowding were included in the present three-dimensional (3D) analysis. Bone dimensions were evaluated by CBCT scans obtained before and after orthodontic treatment, whereas the torque values were calculated by means of digital models using the 3D VistaDent software. A paired t-test was used to compare the changes between the pretreatment and post-treatment measurements. The correlations between variables were analyzed with linear regression analysis. A significant correlation between torque variations and bone thickness changes was observed for the apical buccal level of the anterior side (P < 0.05). Limited and not significant alveolar bone resorption for the apical thickness of anterior teeth occurred at ± 5 degrees of torque variation, while for tooth inclination exceeding +5 or −5 degrees, the bone remodeling was more evident. The present study demonstrated that anterior region was the most affected area by bone remodeling and that torque variation was highly related to apical bone thickness adaptation for maxillary and mandibular incisors and maxillary canines.

scholarly journals Cephalometric Evaluation of Alveolar Bone Remodeling following Anterior Teeth Retraction

2016 ◽  
Vol 8 (1) ◽  
pp. 21-24
Author(s):  
Darshit Dhanani ◽  
G Shivaprakash
Keyword(s):  
Bone Remodeling ◽  
Alveolar Bone ◽  
Tooth Movement ◽  
Anatomical Landmarks ◽  
Bone Thickness ◽  
Mandibular Incisor ◽  
Anterior Teeth ◽  
Alveolar Bone Remodeling ◽  
Lateral Cephalograms ◽  
Incisor Retraction

ABSTRACT Aim To evaluate the extent of the alveolar bone remodeling after incisor retraction using lateral cephalograms. Materials and methods Lateral cephalograms of 30 patients with age of 16 years and above requiring therapeutic extraction of both maxillary and mandibular first premolars, mainly for the purpose of retraction of anterior teeth, had been taken at the start of treatment and after retraction of anterior teeth. Various hard tissue anatomical landmarks were traced, and linear parameters of pretreatment (T1) and postretraction (T2) lateral cephalometric radiographs were measured. The mean and standard deviation were calculated, the data were tabulated, and comparison of T1 and T2 readings was made utilizing paired Student’s t-test. Results When maxillary incisors are retracted, the labial bone thickness at the midroot level (MxL2) and at apical level (MxL3) increased during upper incisor retraction. There was a significant reduction in alveolar bone thickness on the lingual/palatal side after maxillary and mandibular incisor retraction. Conclusion When tooth movement is limited, forcing the tooth against the cortical bone may cause adverse sequelae. This type of approach must be carefully monitored to avoid negative iatrogenic effects. How to cite this article Dhanani D, Shivaprakash G. Cephalometric Evaluation of Alveolar Bone Remodeling following Anterior Teeth Retraction. CODS J Dent 2016;8(1):21-24.

scholarly journals Bone Resorption Rate of Moved and Fixed Teeth during Alveolar Bone Remodeling by Orthodontic Treatment.

1998 ◽  
Vol 64 (626) ◽  
pp. 3888-3893
Author(s):  
Hajime MORIKAWA ◽  
Seiki YAMANAMI ◽  
Morimasa NISHIHIRA ◽  
Katsuyuki YAMAMOTO ◽  
Yoshiaki SATOH ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Bone Remodeling ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Resorption Rate ◽  
Alveolar Bone Remodeling ◽  
Bone Resorption Rate

scholarly journals Evaluation of Bone Resorption Rate during Alveolar Bone Remodeling by Orthodontic Treatment.

1995 ◽  
Vol 61 (589) ◽  
pp. 3545-3551
Author(s):  
Hajime Morikawa ◽  
Morimasa Nishihira ◽  
Katsuyuki Yamamoto ◽  
Hiroyuki Ishikawa ◽  
Yoshiaki Satoh ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Bone Remodeling ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Resorption Rate ◽  
Alveolar Bone Remodeling ◽  
Bone Resorption Rate

scholarly journals Displacement in root apex and changes in incisor inclination affect alveolar bone remodeling in adult bimaxillary protrusion patients: a retrospective study

2020 ◽  
Author(s):  
Huimin Mao ◽  
Andi Yang ◽  
Yue Pan ◽  
Houxuan Li ◽  
Lang LEI
Keyword(s):  
Retrospective Study ◽  
Bone Remodeling ◽  
Alveolar Bone ◽  
Linear Regression Analysis ◽  
Root Apex ◽  
Multivariate Linear Regression Analysis ◽  
Alveolar Bone Remodeling ◽  
Labial Side ◽  
Incisor Inclination ◽  
Bimaxillary Protrusion

Abstract Background: Periodontal health is of great concern for periodontists and orthodontists in the inter-disciplinary management of patients with bimaxillary protrusion. The aim of present study is to investigate changes in the alveolar bone in the maxillary incisor region and to explore its relationship with displacement of root apex as well as changes in the inclination of maxillary incisors during incisor retraction. Methods: Samples in this retrospective study consisted of 38 patients with bimaxillary protrusion. Cone-beam computed tomography (CBCT) images was taken before(T0) and after (T1) treatment. Alveolar bone thickness (ABT), height (ABH) and area (ABA) were utilized to evaluate changes in the alveolar bone, while incisor inclination and apex displacement were used to assess changes in the position of maxillary central and lateral incisors. Correlations between alveolar bone remodeling and apex displacement as well as changes in the inclination were investigated. Results: The labial ABT of central and lateral incisors at the mid-root third was increased. In contrast, the palatal ABT at crestal, mid-root and apical third level were consistently decreased. ABH was not altered on the labial side, while significantly decreased on the palatal side. ABA was not significantly increased on the labial side, but significantly decreased on the palatal side, leading to a significantly reduced total ABA. Orthodontic treatment significantly reduced inclination of upper incisors. Changes in the amount (T1-T0) of ABA was remarkably correlated with apex displacement and changes of inclination (T1-T0); in addition, using the multivariate linear regression analysis, changes of ABA on the palatal side (T1-T0) can be described by following equation: Changes of palatal ABA (T1-T0) = -3.258- 0.139× changes of inclination (T1-T0) + 2.533×apex displacement (T1-T0). Conclusions: Retraction of incisors in bimaxillary protrusion patients may compromise periodontal bone support on the palatal side. An equation that incorporated the displacement of root apex and change in the incisor inclination may enable periodontist-orthodontist interdisciplinary coordination in assessing treatment risks and developing an individualized treatment plan for adult patients with bimaxillary protrusion.

scholarly journals Displacement in root apex and changes in incisor inclination affect alveolar bone remodeling in adult bimaxillary protrusion patients: a retrospective study

2019 ◽  
Author(s):  
Huimin Mao ◽  
Andi Yang ◽  
Yue Pan ◽  
Houxuan Li ◽  
lang lei
Keyword(s):  
Retrospective Study ◽  
Bone Remodeling ◽  
Alveolar Bone ◽  
Linear Regression Analysis ◽  
Root Apex ◽  
Multivariate Linear Regression Analysis ◽  
Alveolar Bone Remodeling ◽  
Labial Side ◽  
Incisor Inclination ◽  
Bimaxillary Protrusion

Abstract Background Periodontal risk is of great concern for periodontists and orthodontists in the inter-disciplinary management of patients with bimaxillary protrusion. The aim of present study is to investigate changes in the alveolar bone in the maxillary incisor region and to explore its relationship with displacement of root apex as well as changes in the inclination of maxillary incisors during incisor retraction.Methods Samples in this retrospective study consisted of 38 patients with bimaxillary protrusion. Cone-beam computed tomography (CBCT) images was taken before(T0) and after (T1) treatment. Alveolar bone thickness (ABT), height (ABH) and area (ABA) were utilized to evaluate changes in the alveolar bone, while incisor inclination and apex displacement were used to assess changes in the position of maxillary central and lateral incisors. Correlations between alveolar bone remodeling and apex displacement as well as changes in the inclination were investigated.Results The labial ABT of central and lateral incisors at the mid-root third was increased. In contrast, the palatal ABT at crestal, mid-root and apical third level were consistently decreased. ABH was not altered on the labial side, while significantly decreased on the palatal side. ABA was not significantly increased on the labial side, but significantly decreased on the palatal side, leading to a significantly reduced total ABA. Orthodontic treatment significantly reduced inclination of upper incisors. Changes in the amount (T1-T0) of ABA was remarkably correlated with apex displacement and changes of inclination (T1-T0); in addition, using the multivariate linear regression analysis, changes of ABA on the palatal side (T1-T0) can be described by following equation: Changes of palatal ABA (T1-T0) = -3.258- 0.139× changes of inclination (T1-T0) + 2.533×apex displacement (T1-T0).Conclusions Retraction of incisors in bimaxillary protrusion patients may compromise periodontal bone support on the palatal side. An equation that incorporated the displacement of root apex and change in the incisor inclination may enable periodontist-orthodontist interdisciplinary coordination in assessing treatment risks and developing an individualized treatment plan for adult patients with bimaxillary protrusion.

scholarly journals Bone Resorption Rate of Moved and Fixed Teeth during Alveolar Bone Remodeling by Orthodontic Treatment.

1999 ◽  
Vol 42 (3) ◽  
pp. 590-596
Author(s):  
Hajime MORIKAWA ◽  
Seiki YAMANAMI ◽  
Morimasa NISHIHIRA ◽  
Katsuyuki YAMAMOTO ◽  
Yoshiaki SATOH ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Bone Remodeling ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Resorption Rate ◽  
Alveolar Bone Remodeling ◽  
Bone Resorption Rate

scholarly journals Displacement in root apex and changes in incisor inclination affect alveolar bone remodeling in adult bimaxillary protrusion patients: a retrospective study

2020 ◽  
Author(s):  
Huimin Mao ◽  
Andi Yang ◽  
Yue Pan ◽  
Houxuan Li ◽  
Lang LEI
Keyword(s):  
Retrospective Study ◽  
Bone Remodeling ◽  
Alveolar Bone ◽  
Linear Regression Analysis ◽  
Root Apex ◽  
Multivariate Linear Regression Analysis ◽  
Alveolar Bone Remodeling ◽  
Labial Side ◽  
Incisor Inclination ◽  
Bimaxillary Protrusion

Abstract Background: Periodontal health is of great concern for periodontists and orthodontists in the inter-disciplinary management of patients with bimaxillary protrusion. The aim of present study is to investigate changes in the alveolar bone in the maxillary incisor region and to explore its relationship with displacement of root apex as well as changes in the inclination of maxillary incisors during incisor retraction.Methods: Samples in this retrospective study consisted of 38 patients with bimaxillary protrusion. Cone-beam computed tomography (CBCT) images was taken before(T0) and after (T1) treatment. Alveolar bone thickness (ABT), height (ABH) and area (ABA) were utilized to evaluate changes in the alveolar bone, while incisor inclination and apex displacement were used to assess changes in the position of maxillary central and lateral incisors. Correlations between alveolar bone remodeling and apex displacement as well as changes in the inclination were investigated.Results: The labial ABT of central and lateral incisors at the mid-root third was increased. In contrast, the palatal ABT at crestal, mid-root and apical third level were consistently decreased. ABH was not altered on the labial side, while significantly decreased on the palatal side. ABA was not significantly increased on the labial side, but significantly decreased on the palatal side, leading to a significantly reduced total ABA. Orthodontic treatment significantly reduced inclination of upper incisors. Changes in the amount (T1-T0) of ABA was remarkably correlated with apex displacement and changes of inclination (T1-T0); in addition, using the multivariate linear regression analysis, changes of ABA on the palatal side (T1-T0) can be described by following equation: Changes of palatal ABA (T1-T0) = -3.258- 0.139× changes of inclination (T1-T0) + 2.533×apex displacement (T1-T0).Conclusions: Retraction of incisors in bimaxillary protrusion patients may compromise periodontal bone support on the palatal side. An equation that incorporated the displacement of root apex and change in the incisor inclination may enable periodontist-orthodontist interdisciplinary coordination in assessing treatment risks and developing an individualized treatment plan for adult patients with bimaxillary protrusion. Moreover, the equation in predicating area of alveolar bone may reduce the risks of placing the teeth out of the bone boundary during 3D digital setups.

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