Effects of erosion and abrasion on resin-matrix ceramic CAD/CAM materials: An in vitro investigation.
Eur J Oral Sci
; 132(2): e12967, 2024 Apr.
Article
in En
| MEDLINE
| ID: mdl-38105518
ABSTRACT
The aim of the study was to evaluate the effects of erosion and abrasion on resin-matrix ceramic CAD/CAM materials [CERASMART (GC); VITA ENAMIC (VITA Zahnfabrik); Lava Ultimate (3 M)] in comparison to feldspar ceramic (VITABLOCS Mark II, VITA Zahnfabrik) and resin composite materials (ceram.x universal, Dentsply Sirona). Daily brushing and acid exposure were simulated using a brushing apparatus and a solution of 0.5 vol% citric acid. Microhardness, surface roughness, and substance loss were measured at baseline and after simulation of 1 and 3 years of function. All materials showed a decrease in microhardness after 3 years and an increase in surface roughness (Ra) after 1 and 3 years. The Ra increase was statistically significantly lower for the resin-matrix ceramics than for feldspar ceramic and similar to composite material. After 3 years, only feldspar ceramic showed no significant substance loss. In conclusion, resin-matrix ceramics demonstrate reduced roughening compared to feldspar ceramics, potentially improving restoration longevity by preventing plaque buildup, but differences in abrasion resistance suggest the need for further material-specific research. Future research should aim to replicate clinical conditions closely and to transition to in vivo trials.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ceramics
/
Potassium Compounds
/
Dental Porcelain
Language:
En
Journal:
Eur J Oral Sci
Journal subject:
ODONTOLOGIA
Year:
2024
Type:
Article
Affiliation country:
Germany