[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
:: Volume 18, Issue 4 (Foll Text in Persian 2006) ::
J Iran Dent Assoc 2006, 18(4): 27-33 Back to browse issues page
The effect of pH on the erosive potential of Iranian and imported soft drinks using atomic absorption spectrophotometry
Masoud Fallahinejad Ghajari *1, Sepideh Nabavi Razavi
1- , e-mail:ma_fa_36@yahoo.com
Abstract:   (11747 Views)

The effect of pH on the erosive potential of Iranian and imported soft drinks using atomic absorption spectrophotometry

Dr. M. Fallahinejad Ghajari* - Dr. S. Nabavi Razavi**

*- Associate Professor of Pediatric Dentistry Dept. Faculty of Dentistry – Shaheed Beheshti University of Medical Sciences.

**- Peadodontist.

Abstract

Background and Aim: An increase in pH can affect the erosive potential of soft drinks, but the possible role of calcium salts and phosphate has not been fully recognized. The aim of the present investigation was to evaluate the effect of pH on the erosive potential of soft drinks on permanent tooth enamel.

Materials and Methods: This experimental in vitro study was performed on 8 beverages and 240 intact premolars extracted for orthodontic purposes. Two Iranian soft drinks (Cola and Orange Zamzam) and 2 imported ones (Pepsi and Mirinda) constituted the case group and 4 solutions with the same pH served as the control group. The teeth were divided into 3 groups (A, B and C) and further subdivided into 8 subgroups and immersed in 20 ml of one of the 8 beverages for 15 minutes (A), 45 minutes (B) and 12 hours (C). The amount of Ca++ released in each soft drink or solution was estimated by AA-spectrophotometry at the end of each exposure time.

Results: A statistically significant difference was found in the extent of erosion between the case and control groups which increased with exposure time (P<0.001). The pattern of Ca++ concentration changes were similar in both study groups (p=0.3915), but the case group revealed a higher erosive potential than the control group (P<0.001).

Conclusion: The percentage of titratable acids seems to have a greater effect on the erosive potential of beverages when compared to pH. Measuring pH alone could not accurately estimate the erosive potential of different soft drinks.

Key words: pH - Fizzy drinks – Erosion - Enamel

Correspondence Author: Pediatric Dentistry Dept. Faculty of Dentistry, Shaheed Beheshti Univ of Med Sci,

e-mail: ma-fa-36@yahoo.com

Keywords: pH - Fizzy drinks – Erosion - Enamel
Full-Text [PDF 217 kb]   (3774 Downloads)    
Type of Study: Research | Subject: General
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Fallahinejad Ghajari M, Nabavi Razavi S. The effect of pH on the erosive potential of Iranian and imported soft drinks using atomic absorption spectrophotometry. J Iran Dent Assoc 2006; 18 (4) :27-33
URL: http://jida.ir/article-1-330-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 18, Issue 4 (Foll Text in Persian 2006) Back to browse issues page
Journal of Iranian Dental Association

AWT IMAGE

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly

Persian site map - English site map - Created in 0.04 seconds with 30 queries by YEKTAWEB 4509