نتایج جستجو برای: affected dentine
تعداد نتایج: 289750 فیلتر نتایج به سال:
The aim was to analyze the protective effects of titanium, zirconium and hafnium tetrafluorides on erosion of pellicle-free and pellicle-covered enamel and dentine in vitro. Eight groups of 20 specimens each of bovine enamel and bovine dentine were prepared. Half the specimens in each group were immersed in human saliva for 2 h for pellicle formation. Specimens were then left untreated (control...
Spatial variation in marine oxygen isotope ratios (δ (18)O) resulting from differential evaporation rates and precipitation inputs is potentially useful for characterizing marine mammal distributions and tracking movements across δ (18)O gradients. Dentine hydroxyapatite contains carbonate and phosphate that precipitate in oxygen isotopic equilibrium with body water, which in odontocetes closel...
OBJECTIVES This randomised in situ study aimed to analyse the effect of milk (with or without 5ppm F) and CPP-ACP pastes (with or without 900ppm F) on dental erosion. METHODS The study was a seven phase (5 days each) crossover design involving 15 participants wearing intraoral appliances with enamel and dentine specimens. Specimens were extraorally eroded (erosive soft drink, 6×90s/day) and bru...
Root Canal Treatment canal treatments fail due to remnant bacteria in the tubules of dentine tissue human teeth. In article number 2200232 by Ambarish Ghosh and co-workers, magnetic nanobots can target pathogens deep inside dentine, thereby reducing bacterial load preventing failure root treatment. This technique reduce global burden oral diseases.
The form of two hard tissues of the mammalian tooth, dentine and enamel, is the result of a combination of the phylogenetic inheritance of dental traits and the adaptive selection of these traits during evolution. Recent decades have been significant in unveiling developmental processes controlling tooth morphogenesis, dental variation and the origination of dental novelties. The enamel-dentine...
The aim was to analyze the protective effects of titanium, zirconium and hafnium tetrafluorides on erosion of pellicle-free and pellicle-covered enamel and dentine in vitro. Eight groups of 20 specimens each of bovine enamel and bovine dentine were prepared. Half the specimens in each group were immersed in human saliva for 2 h for pellicle formation. Specimens were then left untreated (control...
OBJECTIVES To review the available literature investigating the effects of peroxide-based products and solutions on enamel and dentine properties. SOURCES All original scientific full papers listed in ISI Web of Science and Medline were included in this review using the search terms peroxide AND (enamel OR dentin*) up to the end of 2006. CONCLUSIONS The majority of studies indicate that per...
SUMMARY OBJECTIVES The purpose of this study was to investigate time-related dental tissue reactions to tooth replantation in mature and immature human premolars by histomorphometric and radiographic methods. MATERIAL AND METHODS Sixty premolars were extracted, immediately replanted (T0), and left without intervention for 1, 2, 3, 6, 12, and 24 weeks before re-extraction (T1). Periapical radi...
High-sucrose diet and metabolic acidosis have some similar effects on bone and they both reduce the formation of dentine. This series of experiments was conducted in order to get information about the effects of acidosis and alkalosis on dentine during primary dentinogenesis and also to ascertain if high-sucrose diet affects dentine formation via acidosis. Chronic metabolic acidosis (0.25 mol/L...
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