Light cola drink is less erosive than the regular one: An in situ/ex vivo study

Rios, Daniela; Honório, Heitor Marques; Magalhães, Ana Carolina; Wiegand, Annette; de Andrade Moreira Machado, Maria Aparecida; Buzalaf, Marília Afonso Rabelo

doi:10.1016/j.jdent.2008.11.004

« PreviousJournal of Dentistry
Volume 37, Issue 2 , Pages 163-166, February 2009

Light cola drink is less erosive than the regular one: An in situ/ex vivo study

Daniela Rios
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, PO Box 73, Bauru, SP 17012-101, Brazil
- Tel.: +55 14 32358346; fax: +55 14 32271486.
Heitor Marques Honório
- Department of Pediatric Dentistry, Alfenas Federal University, Gabriel Monteiro da Silva Street, 714, Alfenas, MG 37130-000, Brazil
- Tel: +55 35 32991424.
Ana Carolina Magalhães
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, PO Box 73, Bauru, SP 17012-101, Brazil
- Tel.: +55 14 32358346; fax: +55 14 32271486.
Annette Wiegand
- Clinic for Preventive Dentistry, Periodontology and Cariology, University Zurich Plattenstr., 11 CH-8032 Zurich, Switzerland
- Tel.: +44 6343270.
Maria Aparecida de Andrade Moreira Machado
- Department of Pediatric Dentistry, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, PO Box 73, Bauru, SP 17012-101, Brazil
- Tel.: +55 14 32358218; fax: +55 14 32271486.
Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, PO Box 73, Bauru, SP 17012-101, Brazil
- Corresponding author. Tel.: +55 14 32358346; fax: +55 14 32271486.

Received 30 September 2008; received in revised form 5 November 2008; accepted 6 November 2008.

Abstract

Objective

This in situ/ex vivo study assessed the erosive potential of a light cola drink when compared to a regular one.

Methods

During 2 experimental 14-days crossover phases, eight volunteers wore palatal devices with 2 human enamel blocks. The groups under study were: group light, erosive challenge with light cola drink and group regular, erosive challenge with regular cola drink. During 14 days, erosive challenges were performed extraorally 3X/day. In each challenge, the device was immersed in 150ml of light cola (group light) or regular cola (group regular) for 5min. Erosion was analysed by surface profilometry (μm) and surface microhardness change (%SMH). The data were statistically analyzed using paired t test (p<0.05).

Results

Group light (0.6±0.2μm) showed significantly lesser wear than group regular (3.1±1.0μm). There was no significant difference between the groups for the %SMH (group light −63.9±13.9 and group regular −78.5±12.7).