Evaluating the final color of restorations with three CAD/CAM core materials (Cr-Co, Zirconia, Peek), veneered by two methods (indirect CAD/CAM composite, heat-pressed ceramics)

Author:

Chitsaz Foujan1,Kaboudani Shima1,Khoshkhounejad Nikfam1,Zeighami Somayeh1

Affiliation:

1. Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences

Abstract

Abstract Background This study aimed to evaluate the final color of restorations with three different core materials (Cr-Co, Zirconia, PEEK) veneered with heat-pressed ceramic or CAD/CAM composite. Methods Forty core disks (10 mm× 10mm× 0.5 mm) were milled from Zirconia and Cr-Co blocks and were veneered with either A2 shade CAD/CAM composite resin or heat-press ceramic. (n=10) Ten disks from PEEK blocks were only veneered with composite resins. A2 shade veneer material with 2mm thickness served as control for color evaluation. Color parameter were measured by spectrophotometer. Results The mean color differences of Cr-Co, Zirconia and PEEK samples veneered with composite were 2.91(±0.45), 3.24 (±0.33) and 2.75 (±0.35) and for Cr-Co and Zirconia in ceramic groups were 6.46(±0.32) and 1.97(±0.19) respectively. One-way ANOVA and Tukey's post hoc test showed a significant difference between the core groups veneered with ceramic (P value=0.000). The type of core material in the composite veneered samples, however, did not make a significant difference. (P value=0.186). All groups except for Cr-Co-ceramic showed clinically acceptable results (ΔΕ<3.7). Conclusion Type of core material presented significant effect on the final color of restorations when ceramic was used as a veneer material. Conversely, the final color of composite veneer restorations is not affected by the core type. CAD/CAM composites can provide adequate color coverage for different core materials without exceeding a minimum clinically acceptable thickness

Publisher

Research Square Platform LLC

Reference19 articles.

1. Fracture strength of all-porcelain, resinbonded bridges after testing in an artificial oral environment;Kern M;J Dent,1993

2. Ceramic vs composite veneering of full arch implant-supported zirconium frameworks: assessing patient preference and satisfaction. A crossover double-blind randomised controlled trial;Merli M;Eur J Oral Implantol,2017

3. Short-term report of an ongoing prospective cohort study evaluating the outcome of full‐arch implant‐supported fixed hybrid polyetheretherketone‐acrylic resin prostheses and the All‐on‐Four concept;Maló P;Clin Implant Dent Relat Res,2018

4. A review of PEEK polymer’s properties and its use in prosthodontics;Skirbutis G;Stomatologija,2017

5. A comparison of the shear bond strength between two zirconia cores cores on two porcelains porcelains proposed by the manufacturing company in two syhstems of VITA and IVOCLAR;Ahmadzade A;J Mashhad Dent School,2013

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3