Knowledge of Dentists about Hypomineralization Enamel Defects: A Cross-Sectional Study


  • Alice Pinheiro Costa
  • Fernanda Mafei Felix da Silva
  • Fernanda Gabriela de Fátima Vieira
  • Laura Guimarães Primo
  • Marcelo de Castro Costa


Dentists, Dental Enamel, Dental Enamel Hypoplasia, Surveys and Questionnaires


Objective: To evaluate a group of Brazilian dentists on their knowledge of Molar Incisor Hypomineralization (MIH) and Hypomineralized Second Primary Molars (HSPM) related to clinical aspects, consequences, and diagnostic criteria. Material and Methods: In this cross-sectional, the participants were invited by e-mail and Whatsapp® to answer a questionnaire about their knowledge of hypomineralization enamel defects (MIH/HSPM) on the Google Forms® platform. The questionnaire comprised eight questions about personal data and multiple-choice questions about their knowledge concerning clinical aspects, diagnostic criteria of MIH/HSPM and differential diagnosis through clinical images. Chi-square test was applied with the significance level set at 5%. Results: Most participants (n = 492; 91.1%) reported having knowledge about MIH/HSPM. The general dentists gave more incorrect answers (n = 40; 65.6 %;) about dental tissues affected by MIH/HSPM. Overall, 83.3% of the dentists gave the correct answer to which dentitions are associated with this condition. In addition, most dentists presented knowledge about the consequences related to possible fractures (n= 487; 90.2%) and about an increased risk of caries (n= 479; 88.9%) in the affected teeth.  Regarding the differential diagnosis performed through clinical images, most participants gave incorrect answers (p≤0.001). Conclusion: The participants presented knowledge about the dentition associated with this condition and possible consequences related to the teeth affected by MIH/HSPM; however, they showed difficulties concerning clinical diagnostic criteria.


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How to Cite

Costa, A. P., da Silva, F. M. F., Vieira, F. G. de F., Primo, L. G., & Costa, M. de C. (2023). Knowledge of Dentists about Hypomineralization Enamel Defects: A Cross-Sectional Study. Pesquisa Brasileira Em Odontopediatria E Clínica Integrada, 23, e220059. Retrieved from



Original Articles