دورية أكاديمية
أعرض في EDS

Comparison of wear and fracture resistance of additively and subtractively manufactured screw-retained, implant-supported crowns.

التفاصيل البيبلوغرافية
العنوان: Comparison of wear and fracture resistance of additively and subtractively manufactured screw-retained, implant-supported crowns.
المؤلفون: Diken Türksayar AA; Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Biruni University, Istanbul, Turkey; and Guest Researcher, ADMiRE Research Center-Additive Manufacturing, Intelligent Robotics, Sensors and Engineering, School of Engineering and IT, Carinthia University of Applied Sciences, Villach, Austria., Demirel M; Assistant Professor, Oral and Dental Health, Vocational School, Biruni University, Istanbul, Turkey., Donmez MB; Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Istinye University, Istanbul, Turkey; and Visiting Researcher, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland. Electronic address: mustafa-borga.doenmez@unibe.ch., Olcay EO; Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Istinye University, Istanbul, Turkey., Eyüboğlu TF; Associate Professor, Department of Endodontics, Istanbul Medipol University, Faculty of Dentistry, Istanbul, Turkey., Özcan M; Professor and Head, Clinic of Masticatory Disorders and Dental Biomaterials, Center for Dental Medicine, University of Zurich, Zurich, Switzerland.
المصدر: The Journal of prosthetic dentistry [J Prosthet Dent] 2024 Jul; Vol. 132 (1), pp. 154-164. Date of Electronic Publication: 2023 Jul 20.
نوع المنشور: Journal Article; Comparative Study
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: Crowns* , Dental Prosthesis, Implant-Supported* , Dental Restoration Failure* , Dental Stress Analysis* , Composite Resins* , Materials Testing*, Humans ; Dental Restoration Wear ; In Vitro Techniques ; Dental Prosthesis Design ; Dental Materials/chemistry ; Ceramics/chemistry ; Bone Screws
مستخلص: Statement of Problem: Additively manufactured resins indicated for fixed definitive prostheses have been recently marketed. However, knowledge on their wear and fracture resistance when fabricated as screw-retained, implant-supported crowns and subjected to artificial aging is limited.
Purpose: The purpose of this in vitro study was to evaluate the volume loss, maximum wear depth, and fracture resistance of screw-retained implant-supported crowns after thermomechanical aging when fabricated using additively and subtractively manufactured materials.
Material and Methods: Two additively manufactured composite resins (Crowntec [CT] and VarseoSmile Crown Plus [VS]) and 2 subtractively manufactured materials (1 reinforced composite resin, Brilliant Crios [BC] and 1 polymer-infiltrated ceramic network, Vita Enamic [EN]) were used to fabricate standardized screw-retained, implant-supported crowns. After fabrication, the crowns were cemented on titanium base abutments and then tightened to implants embedded in acrylic resin. A laser scanner with a triangular displacement sensor (LAS-20) was used to digitize the pre-aging state of the crowns. Then, all crowns were subjected to thermomechanical aging (1.2 million cycles under 50 N) and rescanned. A metrology-grade analysis software program (Geomagic Control X 2020.1) was used to superimpose post-aging scans over pre-aging scans to calculate the volume loss (mm 3 ) and maximum wear depth (mm). Finally, all crowns were subjected to a fracture resistance test. Fracture resistance and volume loss were evaluated by using 1-way analysis of variance and Tukey Honestly significant difference (HSD) tests, whereas the Kruskal-Wallis and Dunn tests were used to analyze maximum wear depth. Chi-squared tests were used to evaluate the Weibull modulus and characteristic strength data (α=.05).
Results: Material type affected the tested parameters (P<.001). CT and VS had higher volume loss and maximum wear depth than BC and EN (P<.001). EN had the highest fracture resistance among tested materials (P<.001), whereas BC had higher fracture resistance than CT (P=.011). The differences among tested materials were not significant when the Weibull modulus was considered (P=.199); however, VE had the highest characteristic strength (P<.001).
Conclusions: Additively manufactured screw-retained, implant-supported crowns had higher volume loss and maximum wear depth. All materials had fracture resistance values higher than the previously reported masticatory forces of the premolar region; however, the higher characteristic strength of the subtractively manufactured polymer-infiltrated ceramic network may indicate its resistance to mechanical complications.
(Copyright © 2024 Editorial Council for The Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.)
المشرفين على المادة: 0 (Composite Resins)
0 (VITA Enamic)
0 (Dental Materials)
تواريخ الأحداث: Date Created: 20230721 Date Completed: 20240703 Latest Revision: 20240703
رمز التحديث: 20240704
DOI: 10.1016/j.prosdent.2023.06.017
PMID: 37479623
قاعدة البيانات: MEDLINE
الوصف
تدمد:1097-6841
DOI:10.1016/j.prosdent.2023.06.017