59 research outputs found
Influence of thicknesses of smear layer on the transdentinal cytotoxicity and bond strength of a resin-modified glass-ionomer cement
Effect of sodium ascorbate on the bond strength of silorane and methacrylate composites after vital bleaching
Effects of alpha-tocopherol on fracture resistance after endodontic treatment, bleaching and restoration
Is bovine dentine an appropriate substitute for human dentine in erosion/abrasion tests?
The study aimed to compare the dentine wear of primary and permanent human and bovine teeth because of erosion/abrasion and evaluate if bovine dentine is an appropriate substitute for human dentine in further erosion/abrasions tests. Dentine samples from deciduous molars and human third molars as well as from calves' and cattle's lower incisors were prepared and baseline surface profiles were recorded. Each day all samples were demineralized in 1% citric acid, tooth brushed with 100 brushing strokes with toothpaste slurry and stored in artificial saliva for the rest of the day. This cycle was run for 20 days. Afterwards, new surface profiles were recorded and dentine wear was calculated by a customized computer program. Dentine wear because of erosion/abrasion was not statistically, significantly different for human third molars and cattle's lower incisors (P = 0.7002). The dentine wear because of erosion/abrasion of deciduous molars and calves' lower incisors was significantly different (P < 0.0000). No statistically significant difference in the dentine wear of human third molars and cattle's lower incisors was observed, so that the use of cattle's lower incisors as substitute for adult human teeth for further investigations in erosion/abrasion studies could be accepted
Surface morphology changes in human enamel, dentin and cementum following bleaching: a scanning electron microscopy study
Effect of carbamide peroxide and hydrogen peroxide on the surface morphology and zinc oxide levels of IBMR fillings
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