Search results for "Incisal Edge"
showing 2 items of 2 documents
Torque Control During Intrusion on Upper Central Incisor in Labial and Lingual bracket System - A 3D Finite Element Study
2018
Background The aim of present study was to investigate the difference of torque control during intrusive force on upper central incisors with normal, under and high torque in lingual and labial orthodontic systems through 3D finite element analysis. Material and methods Six 3D models of an upper right central incisor with different torque were designed in Solid Works 2006. Software ANSYS Version 16.0 was used to evaluate intrusive force on upper central incisor model . An intrusive force of 0.15 N was applied to the bracket slot in different torque models and the displacements along a path of nodes in the upper central incisor was assessed. Results On application of Intrusive force on under…
Electronic buccal drug delivery system to treat addiction and chronic diseases: A porcine study in the frame of “IntelliDrug” project
2006
examination followed by the administration of a risk factor questionnaire. A cervical, buccal, occlusal/incisal, and lingual score was recorded for each tooth using a modified version of the Tooth Wear Index (Smith and Knight, 1984). Rank correlations, one-way and two-way ANOVA were used to test for associations between risk factors and percent of surfaces with wear. Results: 44 patients (31.9%) had at least one cervical lesion 1-2mm deep. 118 patients (85%) had dentin exposure on at least one incisal edge. Cervical lesions were most frequently observed on mandibular 1 premolars. Incisal/occlusal wear was most common on mandibular central incisors. Age was significantly correlated with over…