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International Journal of Advances In Case Reports

Volume 11, Issue 1, 2024
Mcmed International
International Journal of Advances In Case Reports
Issn
XXX-XXXX (Print), 2349 - 8005 (Online)
Frequency
bi-annual
Email
editorijacr@mcmed.us
Journal Home page
http://mcmed.us/about/ijacr
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Abstract
Title
EVALUATION OF ENAMEL THICKNESS OF UPPER ANTERIOR TEETH IN DIFFERENT AGE GROUPS BY DENTAL CONE BEAM COMPUTED TOMOGRAPHY SCAN IN VIVO
Author
Yiannis P. Brokos*, Minos Stavridakis, Tissiana Bortolotto, Ivo Krejci
Email
drbrokos@dentistry.gr
keyword
Enamel thickness in vivo, CBCT imaging technology, Enamel linear measurement, Upper anterior dentition.
Abstract
The purpose of this study was to examine in vivo the possible variation in enamel thickness among upper anterior teeth. Linear enamel thickness of central, lateral incisors and canines was measured on 3D CBCT data, subsequently image refinement. Filters and parameters of the radiographic image were optimized for the protocol of measurements. Twenty-four patients, from 21 to 75 years, divided in three age groups were included into this study. Following selection criteria, 40 centrals, 42 laterals and 41 canines were examined. Teeth were segmented and then (3D) three-dimensionally reconstructed. Tooth enamel volumes were calculated from 492 CBCT crosscuts. On each clinical crown, 14 enamel spots of interest were selected and 1722 linear enamel measurements were obtained. Statistical evaluation was performed with t-test and One-way Analysis of Variance (ANOVA) at a confidence level of 95% (p = 0.05). The mean value of enamel decreased statistically significantly over time (Young 846μm, Middle 758μm, Aged 705μm). Enamel thickness was influenced by gender, type of tooth (only for canines), but not by the respective quadrant (right vs. left). Enamel, was also influenced by the area of measurement (thinnest in the palatal areas and thickest on the incisal edge). The greatest decrease over time was observed in the incisal edge. 0.5 mm is considered a safe amount of enamel reduction in proximal and buccal areas. Great care in needed when enamel removal is performed in incisal and palatal areas while the same amount of reduction could expose dentin.
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