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Quintessence Publishing: Journals: OHPD


Oral Health & Preventive Dentistry

Edited by Anton Sculean, Poul Erik Petersen, Avijit Banerjee

ISSN (print) 1602-1622 • ISSN (online) 1757-9996


Spring 2012
Volume 10 , Issue 1

Pages: 59 - 64
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Effect of Fluoride Dentifrices on the Microhardness of Deciduous Enamel Surfaces

Shabanian, Mitra / Jabarifar, Seyed Ebrahim / Salavati, Shirin / Khosravi, Kazem / Tavakoli, N. / Akhavan, Ali

Purpose: To evaluate the changes in the enamel surface microhardness following the application of various suspensions of Crest and Pooneh toothpastes with and without fluoride. Materials and Methods: Fifty-six enamel blocks of primary incisors were exposed to a pH-cycling regime consisting of demineralisation and remineralisation solution, then suspensions of the dentifrices Crest 1100, Crest 500, Pooneh 500, Pooneh without fluoride. Changes of the enamel surface microhardness in pre-demineralisation (initial), post-demineralisation (demineralised) and post-remineralisation (final) stages were measured for four groups and were analysed using the Student t test and one-way ANOVA. Results: The percentages of changes in surface microhardness for Crest 1100, Crest 500, Pooneh 500 and Pooneh without fluoride were 45.4, 35.4, 28.6 and 23.7, respectively. Conclusion: Average changes of surface microhardness for Crest 1100 were significantly higher than Crest 500, Pooneh 500 and Pooneh without fluoride. Keywords: dentifrice, fluoride, microhardness, pH cycling, re/demineralisation

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