Morphologic changes of the incisive canal and its proximity to maxillary incisor roots after anterior tooth movement

2021 ◽  
Author(s):  
Ji Hee Yu ◽  
Tung Nguyen ◽  
Yong-Il Kim ◽  
Soonshin Hwang ◽  
Kyung-Ho Kim ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Anterior Tooth ◽  
Maxillary Incisor ◽  
Incisive Canal ◽  
Morphologic Changes

Effect of power arm on anterior tooth movement in sliding mechanics analyzed using a three-dimensional digital model

2015 ◽  
Vol 74 (4) ◽  
pp. 93-98 ◽  
Author(s):  
Hiromi Rokutanda ◽  
Yoshiyuki Koga ◽  
Hiroko Yanagida ◽  
Jun-ya Tominaga ◽  
Yuji Fujimura ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Three Dimensional ◽  
Anterior Tooth ◽  
Digital Model ◽  
Sliding Mechanics

Optimization Spring Coil Design for Orthodontic Tooth Movement

2014 ◽  
Vol 493 ◽  
pp. 327-330
Author(s):  
Moch. Agus Choiron ◽  
Endi Sutikno ◽  
Tri Handoko Wicaksono ◽  
Shigeyuki Haruyama
Keyword(s):  
Alveolar Bone ◽  
Tooth Movement ◽  
Steel Wire ◽  
Orthodontic Tooth Movement ◽  
Maxillary Incisor ◽  
Coil Design ◽  
Hook Length ◽  
Orthodontic Force ◽  
Custom Made ◽  
Spring Coil

Orthodontic tooth movement is achieved by the remodeling of alveolar bone in response to mechanical loading by using spring coil. Spring coil design was made of round stainless steel wire and usually it was custom-made design. In the previous study, the orthodontic force on 30 gram is required to move maxillary incisor during experimental tooth movement in rat. In this study, optimization new design of spring coil is developed to fulfill the requirement of orthodontic force. The design variable of new spring coil design is set on variation of angle aperture (5oα 10o), hook length (10 mml20 mm) and hook diameter (0.012 inchD0.014 inch). From the result, it can be produced the optimum designs which 8.9oof angle aperture; 12 mm of hook length and 0.014 inch of hook diameter for fulfilling the requirement of orthodontic force on 30 gram force.

scholarly journals Quantitative Analysis of the Relationship between Maxillary Incisors and the Incisive Canal by Cone-Beam Computed Tomography in an Adult Population of Mangaluru

2021 ◽  
Vol 8 (2) ◽  
Author(s):  
Vaishnavi D ◽  
◽  
Harshitha V ◽  
Kishore K ◽  
◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Root Resorption ◽  
Interindividual Variation ◽  
Cone Beam ◽  
Maxillary Incisor ◽  
Incisive Canal ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Maxillary Incisors

Background: Maxillary anterior teeth play a crucial role in aesthetics, phonetics, and mastication. For successful orthodontic treatment evaluating the morphology of the alveolar bone and incisive canal would help in avoiding root resorption, dehiscence, and fenestration. This study is aimed to research the configurational relationships among maxillary incisors, alveolar bone, and incisive canal through Cone Beam Computerated Tomography (CBCT). Methods: CBCT images of 35 orthodontic patients were evaluated for length of the canal (L); angles between the palatal plane and the maxillary alveolar border (01),the incisive canal (02), and maxillary incisor (03); distance from the right maxillary incisor to the incisive canal (D). All the measurements were performed on sagittal plane with the exception of (D) which was made on axial plane. Statistical analysis was performed on the above parameters using two sample test and Pearson’s correlation analysis. Results: There was no statistically significant difference between males and females for all the variables although there were large interindividual variation. There was a positive moderate correlation between 01 and 02 (0.480), 01 and 03 (0.487), 02 and 03 (0.345). The mean value for L and D were 10.38mm and 4.14mm respectively. Conclusion: There exists a large interindividual variability for incisive canal, proximity of incisors with that of incisive canal which could not be precisely predicted by the conventional cephalograms. The results of the study could be helpful clinically in planning orthodontic treatment for significant intrusion and retraction of maxillary incisors

scholarly journals Integrated three-dimensional digital assessment of accuracy of anterior tooth movement using clear aligners

2015 ◽  
Vol 45 (6) ◽  
pp. 275 ◽  
Author(s):  
Xiao-Juan Zhang ◽  
Li He ◽  
Hong-Ming Guo ◽  
Jie Tian ◽  
Yu-Xing Bai ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Three Dimensional ◽  
Anterior Tooth ◽  
Digital Assessment

scholarly journals Laser Assisted Surgical and Orthodontic Treatment of a Dilacerated Impacted Maxillary Incisor: A Case Report

2021 ◽  
Author(s):  
Kazem Dalaie ◽  
Maziar Mir ◽  
Samin Ghaffari
Keyword(s):  
Tooth Movement ◽  
Pediatric Dentistry ◽  
Mixed Dentition ◽  
Low Level Laser Therapy ◽  
Deciduous Teeth ◽  
Maxillary Incisor ◽  
Etiologic Factor ◽  
Maxillary Central Incisor ◽  
Anterior Teeth ◽  
Surgical Exposure

Impaction of the anterior teeth, which is less frequent in central incisors, can cause serious esthetic and subsequent psychological problems for patients during the mixed dentition period. Traumatic injury to deciduous teeth is the most common etiologic factor. Thus, treatment of maxillary incisor impaction is highly important. Nowadays, application of laser has been suggested in orthodontics and pediatric dentistry for different treatments, such as surgical exposure of impacted teeth and application of low-level laser therapy (LLLT) for acceleration of orthodontic tooth movement. In this paper, the authors present treatment of an impacted and dilacerated maxillary central incisor with laser application for its surgical exposure and LLLT for acceleration of its orthodontic traction and eruption.

scholarly journals Forces and moments delivered by the PET-G aligner to a maxillary central incisor for palatal tipping and intrusion

2017 ◽  
Vol 87 (4) ◽  
pp. 534-541 ◽  
Author(s):  
Lixia Gao ◽  
Andrea Wichelhaus
Keyword(s):  
Statistical Difference ◽  
Tooth Movement ◽  
Statistical Significance ◽  
Maxillary Incisor ◽  
Central Incisor ◽  
Measuring Device ◽  
Maxillary Central Incisor ◽  
Material Thickness ◽  
Thick Material

ABSTRACT Objective: To evaluate the effect of material thickness and width of the gingival edge on the forces and moments delivered by aligners prepared from Duran foil (PET-G) to a maxillary incisor during tipping and intrusion. Materials and Methods: Aligners prepared from PET-G of three material thicknesses (0.5, 0.625, and 0.75 mm) and three widths of gingival edges (0–1, 3–4, and 6–7 mm) were investigated during incisor palatal tipping and intrusion of 0.5 mm each. Forces and moments were measured with a six-component measuring device. The influence of aligner thickness and aligner extend on the force and moment development were tested for statistical significance (P < .05). Results: The Fx and Fz forces produced during palatal tipping and intrusion by the 0.75-mm aligner material was significantly higher than those produced by the 0.5-mm-thick material (P = .005 and P = .047, respectively). There was no statistical difference between aligner thickness of 0.5 and 0.625 mm and between 0.625 and 0.75 mm. The same behavior was observed for the palatal moment (My). The Fx and Fz forces produced during palatal tipping and intrusion by the aligner with an extension of 0–1 mm edge was significantly lower than that of the aligner with a larger extension (3–4 mm edge: P = .003; 6–7 mm: P = .001). However, there was no statistical difference between aligners with a 3–4-mm and a 6-mm edge. The same behavior was observed for the palatal moment (My). Conclusions: The forces and moments exerted by the PET-G aligner on teeth vary, depending on the material thickness, width of the aligner edge, and direction of tooth movement.

scholarly journals Morphologic evaluation of the incisive canal and its proximity to the maxillary central incisors using computed tomography images

2015 ◽  
Vol 86 (4) ◽  
pp. 571-576 ◽  
Author(s):  
Eun-Ae Cho ◽  
Sung-Jin Kim ◽  
Yoon Jeong Choi ◽  
Kyung-Ho Kim ◽  
Chooryung J. Chung
Keyword(s):  
Computed Tomography ◽  
Root Apex ◽  
Maxillary Incisor ◽  
Linear Measurements ◽  
Cross Sectional ◽  
Incisive Canal ◽  
Computed Tomography Images ◽  
Canal Width ◽  
Normal Occlusion ◽  
L1 And L2

ABSTRACT Objective:  To evaluate the morphologic features and the relative position of the incisive canal with regard to the maxillary incisor roots using computed tomography (CT). Materials and Methods:  Morphologic evaluation of the incisive canal and its proximity to the maxillary central incisors were measured using CT images of 38 adults with skeletal and dental class I normal occlusion. Linear measurements were performed on the axial cross-sectional images corresponding to three vertical levels, the palatal opening of the incisive canal (L1), midlevel between the opening level and the root apex of the maxillary central incisors (L2), and the root apex of the maxillary central incisors (L3). Results:  The percentage of subjects with an incisive canal width greater than the interroot distance of the central incisors was 86.8% and 63.2% at levels L1 and L2, respectively. The anteroposterior distance between the maxillary incisor roots and the boarder of the incisive canal was approximately 5–6 mm at levels L1 and L2. Conclusion:  The anteroposterior distance between the maxillary central incisor roots and the incisive canal was approximately 5–6 mm. More than 60% of the subjects had an incisive canal width greater than the interroot distance. Evaluation of the proximity of the incisive canal to the maxillary incisors, along with its dimensional characteristics, may be helpful when a considerable amount of maxillary retraction is planned.

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