Prevalence of molar-incisor hypomineralisation observed using transillumination in a group of children from Barcelona (Spain).

Objectives: The objectives were to investigate the prevalence of the condition, by using transillumination, in a group of children. Analysed the prevalence with regard to gender, jaw affected, and the teeth that exhibited dysplasia most commonly.

Methods: A sample of 550 children aged 6 to 14 years was selected at the Department of Paediatric Dentistry at the Universitat Internacional de Catalunya, but among those selected only 505 children were eligible for inclusion in the study.