@MASTERSTHESIS{ 2022:1543718472,
 	title = {Selamento dentin?rio imediato influencia a resist?ncia ? fratura de dentes restaurados com facetas oclusais ultrafinas em cer?mica h?brida},
 	year = {2022},
 	url = "https://tede2.pucrs.br/tede2/handle/tede/10454",
 	abstract = "The aim of this laboratory study was to evaluate the influence of immediate dentin sealing (IDS) on the fracture strength of teeth restored with ultrathin occlusal veneers made of a polymer-infiltrated ceramic network (PICN ? Vita Enamic?) with fissure/cusp thicknesses of 0.3/0.6 mm or 0.6/0.9 mm. Forty third molars were identically prepared in the dentin and allocated into four groups (n=10) accordingly the fissure/cusp thickness of the occlusal veneers (0.3/0.6 mm or 0.6/0.9 mm) and application or not of the IDS technique. Ten sound third molars were the control group. IDS was performed using a universal adhesive system (Single Bond Universal). The prepared teeth were scanned (Cerec software, version 4.1), and the CAD/CAM occlusal veneers were shaped according to the occlusal anatomy of a right second molar. Blocks of PICN were milled in the unit inLab MC XL (Dentsply Sirona) according to the thicknesses stipulated. After luting with Single Bond Universal and RelyX Ultimate, the samples were subjected to fracture strength test in a universal testing machine. The fractures were classified as irreparable and reparable. Data were analyzed with 2-way and 1-way ANOVA (?=0.05) followed by Tukey?s test. Only the IDS factor was significant (p=0.001). The teeth restored with IDS (2875 ? 508 N) achieved significantly higher fracture strength compared to the teeth restored without IDS (2263 ? 354 N) (p<0.05). The fracture strength of the teeth restored with occlusal veneers with IDS did not differ significantly from the sound teeth (3230 ? 620 N). The fractures were predominantly reparable. In conclusion, IDS improved the fracture strength of ultrathin occlusal veneers made of PICN.",
 	publisher = {Pontif?cia Universidade Cat?lica do Rio Grande do Sul},
 	scholl = {Programa de P?s-Gradua??o em Odontologia},
 	note = {Escola de Ci?ncias Sa?de e da Vida}
}