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CAD-CAM resin-ceramic material wear: A systematic review
Marion Laborie1, Adrien Naveau2, Aude Menard3
1Private practice, Reunion Island, France.
The Journal of Prosthetic Dentistry
|April 23, 2022
Summary
Lithium disilicate ceramics exhibit superior wear resistance compared to resin-ceramic materials. However, resin-ceramic materials cause less wear on opposing teeth, offering a balance for dental applications.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Restorative Dentistry
Background:
- Computer-aided design/computer-aided manufacturing (CAD-CAM) drives innovation in dental restorative materials.
- Resin nanoceramic (RNC) and polymer-infiltrated ceramic network (PICN) materials are developed for minimally invasive dentistry.
- Wear characteristics of novel resin-ceramic materials require comprehensive evaluation.
Purpose of the Study:
- To systematically review and compare the wear resistance of various resin-ceramic materials.
- To compare resin-ceramic materials against each other and against lithium disilicate glass-ceramics.
- To inform material selection in restorative dentistry based on wear performance.
Main Methods:
- Systematic literature search of PubMed, Scopus, and DOSS (2013-2021).
- Adherence to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.
- Inclusion of studies comparing resin-ceramic wear (attrition, abrasion) with each other or with lithium disilicate.
Main Results:
- Twenty-six studies were selected, predominantly in vitro, comparing 15 resin-ceramic vs. resin-ceramic and 11 resin-ceramic vs. lithium disilicate.
- Vita Enamic (PICN) demonstrated less wear than resin nanoceramics (RNCs).
- Cerasmart (RNC) exhibited less attrition and opposing tooth wear among RNCs.
Conclusions:
- Lithium disilicate glass-ceramics possess higher wear resistance than resin-ceramic materials.
- Resin-ceramic materials, particularly certain RNCs, induce less wear on opposing dentition.
- Material selection should balance wear resistance with potential for antagonist tooth wear.
