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Dentoalveolar characteristics in subjects with different anteroposterior relationships: a retrospective cross-sectional Cone-Beam Computed Tomography study.
BMC Oral Health
December 2024
College of Dental Medicine, QU Health, Qatar University, P.O. Box: 2713, Doha, Qatar.
Background: The collum angle, tooth dimensions, root length, and alveolar bone thickness have a significant impact on orthodontic diagnosis and treatment planning. The boundaries of orthodontic tooth movement are determined by alveolar bone thickness and dimensions while the collum angle determines the appropriate positioning of the root relative to the cortical plate. This study aimed to compare the collum angle, crown dimensions, root length, and alveolar bone thickness of the upper and lower incisors, canines, and premolars in subjects with varying anteroposterior relationships.
View Article and Find Full Text PDFBilateral inverse canine impaction: a case report.
J Med Case Rep
December 2024
School of Dentistry, China Medical University, Taichung, 404, Taiwan, Republic of China.
Background: Maxillary canine impaction can result in malocclusion, temporomandibular joint complications, and esthetic concerns, thus influencing craniofacial development. Although cases of impacted canines are not uncommon in clinical practice, the likelihood of simultaneous bilateral impaction is extremely low; very few reports have documented cases of bilaterally symmetrical, inversely impacted canines.
Case Presentation: This paper reports a rare case of maxillary canine impaction, a condition characterized by the abnormal eruption of teeth.
The influence of Kitchon-RCAA on biomechanics of maxillary tissues based on indirect action: A finite element analysis.
Proc Inst Mech Eng H
December 2024
The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P. R. China.
This paper creates 3D models of Kitchon Root Controlled Auxiliary Archwire (Kitchon-RCAA) with different material properties and assembles them onto the main archwire equipped with brackets. By setting different loading methods and conducting Finite Element Analysis (FEA), the range of Orthodontic Torque/Support Force (OT/SF) values can be obtained. From the obtained values, it can be seen that changes in material properties have a significant impact on the mechanical properties of Kitchon-RCAA.
View Article and Find Full Text PDFPrediction of the success of orthodontic treatment of impacted maxillary canines using panoramic radiography parameters: a retrospective cross-sectional study.
BMC Oral Health
December 2024
Faculty of Dentistry, Department of Orthodontics, Ondokuz Mayıs University, Atakum, Samsun, 55139, Turkey.
Background: This retrospective study aimed to investigate the relationships between the radiographic features of impacted maxillary canines (IMCs) and traction duration and the factors affecting treatment success.
Methods: Pre-treatment panoramic radiographs and patient records of 121 consecutive patients with IMCs were analyzed. The measurements included the angle of the IMC with the midline (α-angle), the horizontal position of the IMC relative to the adjacent teeth (S-Sector), the distance from the IMC to the occlusal plane (d-distance), the apex position of the IMC (A), and the vertical height of the IMC relative to the adjacent lateral tooth (V).
Background: Tooth autotransplantation is a reliable procedure with high long-term success and survival rates, showing many advantages over dental implants, particularly for young patients in craniofacial development. Nonetheless, insufficient bone availability at the recipient site is a key limitation. This study aims to establish the feasibility of tooth autotransplantation combined with staged or simultaneous bone regeneration to address complex cases.
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