Preliminary in vitro assessment of erosive potential using the ultra-micro-indentation system

Abstract

The aim of this study was to measure the change in hardness and modulus of elasticity of enamel and dentine in primary teeth using the ultra-micro-indentation system (UMIS) after exposure to potentially erosive beverages and to relate the changes to the chemical composition of the test beverages. Primary molar teeth were sectioned and polished. Indentations were made in enamel and dentine prior to and then after exposure to one of four beverages: distilled water (control), orange juice, Orange Cordial, Fanta® and a 'toothfriendly' Tropical Orange Cordial (Ribena®). Each beverage was then analysed. Fanta and Orange Cordial were the only test beverages to show a statistically significant reduc..