Microhardness of coronal dentin adjacent to resin-modified glass ionomer and compomer in Class V restorations

Autor:	Prakash Lokhande, TM Mangala
Rok vydání:	2019
Předmět:	Molar Materials science business.industry Glass ionomer cement Dentistry Resin modified General Medicine Indentation hardness General Biochemistry Genetics and Molecular Biology medicine.anatomical_structure Coronal plane visual_art Dentin medicine visual_art.visual_art_medium Statistical analysis business Acrylic resin
Zdroj:	Journal of Natural Science, Biology and Medicine. 10:127
ISSN:	0976-9668
DOI:	10.4103/jnsbm.jnsbm_8_19
Popis:	Aims: The objective of this in vitro study was to compare the microhardness values of coronal dentin adjacent to resin-modified glass-ionomer cement (RMGIC) and compomer. Materials and Methods: Standardized Class V preparation was performed for 30 extracted human permanent molars affected by Class V caries. The samples were divided into three groups as follows: specimens before restoration (Group 1) (n = 10), samples restored using RMGIC (Group 2) (n = 10), and specimens treated with compomer (Group 3) (n = 10). Dentinal discs with 2-mm diameter were obtained after embedment into acrylic resin. Vickers microhardness measurements were performed using a digital microhardness tester (Zwick/Roell) immediately after the 10th, 20th, and 30th day by applying a load of 25 g for 15 s at a distance of 100, 200, and 300 μm from the cavity floor. Statistical Analysis Used: One-way analysis of variance and post hoc Tukey tests (P
Databáze:	OpenAIRE
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