The ability of fruit teas to remove the smear layer: an in vitro study of tubule patency

Rees, Jeremy Simon, Loyn, Theresa Vivian, Rowe, Wendy Gillian, Kunst, Q. and McAndrew, Robert 2006. The ability of fruit teas to remove the smear layer: an in vitro study of tubule patency. Journal of Dentistry 34 (1) , pp. 67-76. 10.1016/j.jdent.2005.03.006

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Abstract

Objectives Fruit teas are know to have an erosive effect on enamel, but the effects on dentine are unknown. Lesions of dentine hypersensitivity have numerous patent dentinal tubules and the aim of this paper was to examine the ability of various fruit teas to remove the smear layer. Methods The erosive potential of a variety of fruit teas was assessed in the laboratory by measuring their pH and neutralisable acidity. Smeared dentine specimens were prepared from extracted teeth and the ability of each tea to remove the smear layer was assessed by measuring the diameter and area of the opened tubules and counting the number of patent tubules seen in a unit area using scanning electron microscopy. A 0.2% citric acid solution was used as a positive control. Results The pH of the fruit teas ranged from 2.98 to 3.95 and the neutralisable acidity ranged from 10.63 to 33.0 ml of 0.1 M NaOH. All the fruit teas tested were able to remove the smear layer. The mean diameter of the tubules ranged from 0.61 to 1.14 ?m and the mean area ranged from 0.31 to 1.03 ?m2. The number of patent tubules per specimen ranged from 13 to 121. Conclusion All the fruit teas tested were found to be highly acidic and able to remove the smear layer.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Dentistry
Subjects:	R Medicine > RK Dentistry
Uncontrolled Keywords:	Dentine sensitivity; Smear layer; Fruit teas
ISSN:	0300-5712
Last Modified:	04 Jun 2017 01:36
URI:	https://orca.cardiff.ac.uk/id/eprint/749

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