Amirfarhang Miresmaeili1, Mohammad Basafa2, Reza Mahvelati Shamsabadi3, Nasrin Farhadian1, Abbas Moghymbeigi4, Vahid Mollabashi5. 1. Department of Orthodontics, Dental Research Center, School of Dentistry, Hamadan University of Medical Sciences & Health Services, Hamadan, Iran. 2. Department of Orthodontics, School of Dentistry, Mashhad University of Medical Sciences & Health Services, Mashhad, Iran. 3. Private Orthodontist, Mashhad, Iran. 4. Biostatistics and Epidemiology Department, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran. 5. Department of Orthodontics, Dental Research Center, School of Dentistry, Hamadan University of Medical Sciences & Health Services, Hamadan, Iran. Electronic address: vahid.mollabashi@gmail.com.
Abstract
OBJECTIVES: The aim of this study was to assess difficulty of treatment of palatally-displaced canines (PDC) according to experts' opinion using CBCT data and to determine a cut-off point for extraction versus forced eruption. SUBJECTS AND METHODS: Seven CBCT variables of thirty PDC cases were measured with Dolphin 3D software. In addition to measurements of each case, nine 3D and 2D views were prepared on one page and uploaded on the website (canineimpaction.com). Thirty-four orthodontists were asked to judge the difficulty of bringing the impacted canine into occlusal plane. Then, they scored from 1 to 5 the effect of each variable on treatment difficulty and also decided whether to force-erupt or extract the impacted tooth. RESULTS: Overlap in frontal view, angulation of the canine to the occlusal plan, vertical distance to the occlusal plane, age, dilaceration and rotation had significant relationship with the level of treatment difficulty. The treatment plan decision for PDC with treatment difficulty>7.5 was extraction rather than forced eruption. CONCLUSION: We can predict treatment difficulty of PDC by measuring CBCT variables and decide to extract or force-erupt with a reasonable level of agreement among a panel of orthodontists.
OBJECTIVES: The aim of this study was to assess difficulty of treatment of palatally-displaced canines (PDC) according to experts' opinion using CBCT data and to determine a cut-off point for extraction versus forced eruption. SUBJECTS AND METHODS: Seven CBCT variables of thirty PDC cases were measured with Dolphin 3D software. In addition to measurements of each case, nine 3D and 2D views were prepared on one page and uploaded on the website (canineimpaction.com). Thirty-four orthodontists were asked to judge the difficulty of bringing the impacted canine into occlusal plane. Then, they scored from 1 to 5 the effect of each variable on treatment difficulty and also decided whether to force-erupt or extract the impacted tooth. RESULTS: Overlap in frontal view, angulation of the canine to the occlusal plan, vertical distance to the occlusal plane, age, dilaceration and rotation had significant relationship with the level of treatment difficulty. The treatment plan decision for PDC with treatment difficulty>7.5 was extraction rather than forced eruption. CONCLUSION: We can predict treatment difficulty of PDC by measuring CBCT variables and decide to extract or force-erupt with a reasonable level of agreement among a panel of orthodontists.
Authors: Laila Fawzi Baidas; Nada Alshihah; Rwan Alabdulaly; Sara Mutaieb Journal: Int J Environ Res Public Health Date: 2022-08-27 Impact factor: 4.614