saleh, S., Refaat, W., abdullah, A., El-gameay, W. (2024). Evaluation of Position and Treatment Difficulty of Impacted Maxillary Canine Using Cone Beam Computed Tomography: A Retrospective Study. Dental Science Updates, 5(1), 77-86. doi: 10.21608/dsu.2024.196527.1163
sara salah saleh; Waleed Refaat; asmaa Y abdullah; Walaa El-Sayed El-gameay. "Evaluation of Position and Treatment Difficulty of Impacted Maxillary Canine Using Cone Beam Computed Tomography: A Retrospective Study". Dental Science Updates, 5, 1, 2024, 77-86. doi: 10.21608/dsu.2024.196527.1163
saleh, S., Refaat, W., abdullah, A., El-gameay, W. (2024). 'Evaluation of Position and Treatment Difficulty of Impacted Maxillary Canine Using Cone Beam Computed Tomography: A Retrospective Study', Dental Science Updates, 5(1), pp. 77-86. doi: 10.21608/dsu.2024.196527.1163
saleh, S., Refaat, W., abdullah, A., El-gameay, W. Evaluation of Position and Treatment Difficulty of Impacted Maxillary Canine Using Cone Beam Computed Tomography: A Retrospective Study. Dental Science Updates, 2024; 5(1): 77-86. doi: 10.21608/dsu.2024.196527.1163
Evaluation of Position and Treatment Difficulty of Impacted Maxillary Canine Using Cone Beam Computed Tomography: A Retrospective Study
1Orthodontic department, Faculty of dentistry, Suez Canal University, Ismailia, Egypt
2Orthodontic, faculty of dentistry and oral surgery, Suez canal university, Ismailia, Egypt
3oral radiology department, faculty of dentistry, suez canal university
4lecturer of Orthodontics, Orthodontic Department, Faculty of Dentistry, Suez Canal University
Abstract
Introduction: Impaction of the permanent maxillary canines is a serious dental development disorder that affects about 3% of the general population. Its final position in the occlusion is critical for the completion of the arch form, functional occlusion, dental symmetry, and harmony. Aim: The aim of the present study was to evaluate the impacted maxillary canine location on 3D images and to determine positional components associated with impaction severity that may affect treatment difficulty. Material and methods: The current study included 40 CBCT scans of 40 unilateral impacted canines where several angular and linear measurements on the reconstructed panoramic, axial, sagittal, and coronal views were measured and then based on the angle between the impacted canine and their proposed post-treatment position, the sample was divided to three impaction severity groups, group 1: Mild (IMPC/VAC <30º), group 2: Moderate (IMPC/VAC 30º-55º), and group 3: Severe (IMPC/VAC >55º). Results: Severity of impacted canines increased when their cusp tips were close to midline distance<4mm ,and the vertical distance to the maxillary occlusal plan was >14mm, when their root apices were far from the dental midline a distance>23mm, and from the skeletal midline a distance>16mm. Severity of the impacted canine was associated with increased angulation IMPC/VAC>45º, IMPC/midline>45º, and IMPC/ PL>120º. Conclusions: Cone beam computed tomography images enable thorough localization of impacted canines and their relationship to neighboring anatomical structures, the use of virtual aligned canine in the recent study is a reliable and applicable method that can be used in future research.
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