Molar Incisor Hypomineralization: Current Knowledge, Clinical Experience, and Perception among General Dental Practitioners, Pediatric Dentists, and Other Dental Specialists in Northern India - A Cross-sectional Study

Background: Molar incisor hypomineralization (MIH) is the hypomineralization of systemic origin of one to four permanent first molars, frequently associated with affected incisors. It is presented as demarcated enamel opacities of different colors, occasionally undergoing posteruptive breakdown. The characteristic feature of MIH is the clear demarcation between the affected and sound enamel. There is an asymmetry of defects present in the molars and incisors where one molar or incisor can be severely affected, while the contralateral tooth may be clinically sound or have only minor defects. Aim: The study aimed to assess and compare the knowledge, perceptions, and clinical experience of general dental practitioners (GDPs), pediatric dentists (PDs), and other dental specialists (DSs) in Northern India about MIH. Methodology: Online survey methods were used to collect the responses from Northern Indian dentists regarding their knowledge and perceptions about MIH. The survey tool focused on participants' sociodemographics, clinical experience, perceptions, clinical management, and preferences for further training. The level of knowledge regarding MIH was compared among the three groups. Data analysis utilized Chi-square and one-way analysis of variance followed by Tukey's post hoc test using SPSS Statistics version 26. Results: The majority of respondents had observed MIH in their practice (77.3%). The participants who had a postgraduate degree had a significantly higher knowledge score value than GDPs (P < 0.001). Conclusion: Dissemination of evidence on MIH to dental practitioners, especially to GDPs, is highly needed to assure confidence in MIH diagnosis at an early stage when it can be best managed.