A comparative evaluation of marginal fit and microleakage of computer-aided design/computer-aided manufacturing-milled zirconia and prefabricated posterior occlusal veneers: An in vitrostudy.
Journal
Journal of Indian Prosthodontic Society
ISSN: 1998-4057
Titre abrégé: J Indian Prosthodont Soc
Pays: India
ID NLM: 101255941
Informations de publication
Date de publication:
01 Jul 2024
01 Jul 2024
Historique:
received:
17
07
2023
accepted:
09
04
2024
medline:
1
7
2024
pubmed:
1
7
2024
entrez:
1
7
2024
Statut:
ppublish
Résumé
The aim of this study was to compare the marginal fit of prefabricated occlusal veneers with computer-aided design/computer-aided manufacturing (CAD-CAM)-milled zirconia occlusal veneers in the posterior teeth. Forty extracted human maxillary premolars were divided into two groups of 20 each. Group 1 was prepared to receive prefabricated occlusal veneers, and Group 2 was prepared to receive CAD-CAM-milled zirconia occlusal veneers. Prefabricated samples (Edelweiss) were selected for Group 1, whereas for Group 2, the tooth preparations were scanned, and occlusal veneers were fabricated using Exocad designing software and milling machine. After luting, both the groups were submerged in dye, sectioned, and evaluated for marginal fit and microleakage under a stereomicroscope using the microscope imaging software and its measurement tool. Data collected were subjected to statistical analysis using SPSS 27.0. Intragroup and intergroup comparison was done using the Mann-Whitney U test. The Chi-square test was applied to check the depth of penetration of dye based on percentages. The marginal gap of zirconia occlusal veneers fabricated with CAD-CAM is higher compared to that of prefabricated occlusal veneers. Similarly, the depth of penetration of dye is higher in CAD-CAM-milled zirconia occlusal veneers than prefabricated occlusal veneers. The marginal fit of prefabricated occlusal veneer is better than the marginal fit of zirconia occlusal veneers fabricated with CAD-CAM. Similarly, it can also be concluded that the microleakage of prefabricated occlusal veneer is less compared to the CAD-CAM-milled zirconia occlusal veneers.
Identifiants
pubmed: 38946505
doi: 10.4103/jips.jips_346_23
pii: 00660762-202424030-00004
doi:
Substances chimiques
Zirconium
C6V6S92N3C
zirconium oxide
S38N85C5G0
Types de publication
Journal Article
Comparative Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
233-239Informations de copyright
Copyright © 2024 Copyright: © 2024 The Journal of Indian Prosthodontic Society.
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