Electromyographic analysis of the stomatognathic system of children with Molar-incisor hypomineralization

• DOI: 10.1371/journal.pone.0277030
• Publication Date: 2023-02-24T18:35:17Z
• Authors: Milena Rodrigues ...; Simone Cecilio Ha...; Selma Siéssere; Lígia Maria Napol...; Francisco Wanderl...; Fernanda Vicioni-...; Paulo Nelson-Filho; Paulo Batista de ...; Fabrício Kitazono...; Alexandra Mussoli...
• Keywords: Stomatognathic system

Introduction Molar-incisor hypomineralization (MIH) is a qualitative defect of dental enamel that affects one or more permanent first molars, with without involvement the incisor teeth. This condition leads to challenges care and treatment planning. Aim Based on hypothesis children who have MIH possibly present alterations in postural masticatory activities considering absence studies investigating these parameters, study evaluated functionality stomatognathic system mentioned aspects. Materials The comparison individuals (MIHG; n = 32) (CG; was by electromyographic activity masseter temporal muscles (right left), as well evaluation cycles during habitual mastication. Results MIHG showed muscle hyperactivity dynamic conditions compared CG; higher values for when CG following conditions: at rest right (p 0.00) left 0.03); protrusion 0.02); laterality 0.01); 0.03) 0.04) muscles. In consistent food, significance observed soft food 0.01) 0.04). Conclusions Children seem impaired system.