دورية أكاديمية
أعرض في EDS

Surface roughness and stainability of CAD-CAM denture base materials after simulated brushing and coffee thermocycling.

التفاصيل البيبلوغرافية
العنوان: Surface roughness and stainability of CAD-CAM denture base materials after simulated brushing and coffee thermocycling.
المؤلفون: Çakmak G; Senior Research Associate, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland., Donmez MB; Assistant Professor, Istinye University, Faculty of Dentistry, Department of Prosthodontics, İstanbul, Turkey; Visiting Researcher, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland. Electronic address: mustafa-borga.doenmez@unibe.ch., Atalay S; Prosthodontist, Private Practice, İstanbul, Turkey., de Paula MS; Visiting Researcher, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; PhD Student, Universidade Federal de Goiás, Department of Prevention and Oral Rehabilitation, Goiânia, Goiás, Brazil., Fonseca M; Senior Lecturer, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland., Schimmel M; Professor and Chair, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Senior Lecturer, Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland., Yilmaz B; Associate Professor, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Associate Professor, Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland; Adjunct Professor, Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, OH, USA.
المصدر: The Journal of prosthetic dentistry [J Prosthet Dent] 2024 Jul; Vol. 132 (1), pp. 260-266. Date of Electronic Publication: 2022 Aug 20.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Mosby-Year Book Country of Publication: United States NLM ID: 0376364 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6841 (Electronic) Linking ISSN: 00223913 NLM ISO Abbreviation: J Prosthet Dent Subsets: MEDLINE
أسماء مطبوعة: Publication: St. Louis Mo : Mosby-Year Book
Original Publication: St. Louis, Mosby.
مواضيع طبية MeSH: Coffee* , Denture Bases* , Surface Properties* , Computer-Aided Design* , Toothbrushing* , Dental Materials*/chemistry, Materials Testing ; Polymethyl Methacrylate/chemistry ; Humans ; In Vitro Techniques ; Color
مستخلص: Statement of Problem: Denture bases machined from prepolymerized materials have become popular. However, information on the effect of simulated brushing and coffee thermocycling (CTC) on their surface roughness and stainability is lacking.
Purpose: The purpose of this in vitro study was to compare the effect of simulated brushing and CTC on the surface roughness (R a ) and stainability of computer-aided design and computer-aided manufacturing (CAD-CAM) denture base materials and a heat-polymerized denture base material.
Material and Methods: Forty disk-shaped specimens were prepared from 3 CAD-CAM denture base resins (AvaDent, AV; Merz M-PM, M-PM; and Polident d.o.o, Poli) and a heat-polymerized polymethylmethacrylate resin (Promolux, CV) (n=10). R a values of the specimens were measured by using a noncontact profilometer after conventional polishing. The color coordinates were also measured over a gray background with a spectrophotometer. Specimens were then consecutively subjected to simulated brushing for 20 000 cycles, CTC for 5000 cycles, and another 10 000 brushing cycles. R a and color coordinates were measured after each interval. Color differences (ΔE 00 ) were calculated by using the CIEDE2000 formula, and the data were analyzed by using 2-way analysis of variance and Tukey honestly significant difference tests (α=0.05).
Results: The time interval had a significant effect on R a (P<.001) as brushing cycles resulted in higher values than those at baseline and after CTC (P<.001). However, the differences between brushing cycles (P=.143) and between the baseline and after CTC (P=.994) were not significant. The interaction between the material type and time interval was significant for ΔE 00 (P=.016). The only significant difference in ΔE 00 values was observed between M-PM and CV after all treatments were completed (P=.029).
Conclusions: Brushing increased the R a of all materials when compared with the baseline. All materials showed similar stainability throughout the brushing and CTC processes. However, M-PM CAD-CAM denture base resin underwent a greater color change after all treatments were completed than conventional denture base resin. All color changes can be considered clinically small, considering reported perceptibility and acceptability thresholds.
(Copyright © 2022 Editorial Council for The Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.)
المشرفين على المادة: 0 (Coffee)
0 (Dental Materials)
9011-14-7 (Polymethyl Methacrylate)
تواريخ الأحداث: Date Created: 20220822 Date Completed: 20240703 Latest Revision: 20240703
رمز التحديث: 20240704
DOI: 10.1016/j.prosdent.2022.06.006
PMID: 35995602
قاعدة البيانات: MEDLINE
الوصف
تدمد:1097-6841
DOI:10.1016/j.prosdent.2022.06.006