RP Shellis
University of Bristol
12 Papers
82 Citations
RP Shellis is an academic researcher from University of Bristol. The author has contributed to research in topics: Enamel paint & Chemistry. The author has an hindex of 10, co-authored 11 publications. Previous affiliations of RP Shellis include University of Bern.
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Papers
Inhibition of hydroxyapatite dissolution by whole casein: the effects of pH, protein concentration, calcium, and ionic strength
TL;DR: Adding 0.02% (w/v) casein to acid solutions significantly reduced the hydroxyapatite dissolution rate by 51 +/- 4% at pH values of 2.80, 3.40, and 3.60, although the baseline dissolution rates of course varied as a function of pH.
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Effects of Buffering Properties and Undissociated Acid Concentration on Dissolution of Dental Enamel in Relation to pH and Acid Type
TL;DR: The results suggest that [HA], rather than buffering per se, is a major rate-controlling factor, probably owing to the importance of undissociated acid as a readily diffusible source of H+ ions in maintaining near-surface dissolution within the softened layer of enamel.
Relationship between enamel erosion and liquid flow rate.
TL;DR: The rapid increase in the rate of erosion caused by citric acid at low liquid velocities shows that reproducible stirring is essential for precision and intercomparison of in vitro studies.
88
Enamel erosion in dietary acids: inhibition by food proteins in vitro.
TL;DR: It is postulate that the mechanism involves adsorption of proteins to the pellicle or the enamel surface, forming a protein film with enhanced erosion-inhibiting properties, since erosion reduction was less in the other acids.
58
In vitro studies on the effect of sodium tripolyphosphate on the interactions of stain and salivary protein with hydroxyapatite.
TL;DR: STP is likely to be an effective agent for inhibiting and removing dental stain, whether bound directly to mineralised surfaces or indirectly via salivary pellicle.
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