Introduction Molar-incisor hypomineralization (MIH) is a qualitative defect of dental enamel that affects one or more permanent first molars, with or without involvement of the incisor teeth. This condition leads to challenges to dental care and treatment planning. Aim Based on the hypothesis that children who have MIH possibly present alterations in postural and masticatory activities and considering the absence of studies investigating these parameters, the present study evaluated the functionality of the stomatognathic system considering the mentioned aspects. Materials The comparison of individuals with (MIHG; n = 32) and without MIH (CG; n = 32) was evaluated by electromyographic activity of the masseter and temporal muscles (right and left), as well as evaluation of the masticatory cycles during habitual mastication. Results MIHG showed muscle hyperactivity in postural and dynamic conditions compared to the CG; higher electromyographic values for MIHG when compared to CG in the following postural conditions: at rest for the right temporal (p = 0.00) and left temporal muscles (p = 0.03); in the protrusion to the right temporal muscle (p = 0.02); in the right laterality for the right masseter (p = 0.00) and left temporal muscles (p = 0.01); in the left laterality for the right masseter (p = 0.03) and left temporal (p = 0.04) muscles. In dynamic conditions with consistent food, significance was observed for the left temporal (p = 0.01); and with soft food for the right (p = 0.01) and left temporal muscles (p = 0.04). Conclusions Children with MIH seem to have impaired functionality of the stomatognathic system. Children with MIH have alterations in the stomatognathic system.
AimThe objective of this study was to investigate whether dental hypersensitivity and dental fear were linked to the presence and severity of MIH. Methods For this cross-sectional study, 1830 students between the ages of 6 and 12 years were recruited from four randomly selected schools. The Children's Fear Survey Schedule-Dental Subscale questionnaire was used to assess dental anxiety and fear. The children's self-reported dental hypersensitivity resulting from MIH was evaluated using the Wong-Baker Facial Scale and the Visual Analog Scale (VAS). Results MIH was correlated with tooth hypersensitivity, particularly in severe cases. Dental fear was present in 17.4% of the children with MIH, but it was not associated with dental hypersensitivity, gender, or age. Conclusion No association was found between dental fear and dental hypersensitivity in children with MIH.
Molar incisor hypomineralization (MIH) is often accompanied by dental hypersensitivity and difficulty in achieving effective analgesia. Objective: This study evaluated the effectiveness of preemptive analgesia in children with severe MIH, post-eruptive enamel breakdown, and hypersensitivity. Methodology: Ibuprofen (10 mg/kg child weight) or placebo was administered, followed by infiltrative anesthesia and restoration with resin composite. Hypersensitivity was evaluated in five moments. The data were analyzed using the chi-square test, Fisher's exact test, and t-test. Results: Preemptive analgesia provided benefits for the treatment of severe cases of MIH, with an increase in the effectiveness of infiltrative anesthesia and improved patient comfort during the restorative procedure. Conclusion: Preemptive analgesia has shown efficacy in reducing hypersensitivity during restorative dental procedures, evidencing the significance of this study for patients with MIH and hypersensitivity.
A Deus, pela vida que me concedeu, e por me permitir realizar mais esta conquista. Por ter me conduzido até aqui, me tornando forte para conseguir a realização deste sonho! Aos meus queridos filhos, Murilo Rodrigues Carvalho e Beatriz Rodrigues Carvalho, pelo amor, ternura, carinho e incentivo de todos os dias, para que hoje estivesse aqui realizando este sonho, esta conquista, meus amores. Por sempre vibrarem com muita alegria e se orgulharem a cada conquista minha. Minha razão de viver são vocês. Amo vocês! Ao meu querido marido, Marcelo de Senzi Carvalho, pelo amor, incentivo, companheirismo, dedicação, e por sempre me apoiar. Sempre de uma forma muito carinhosa me deu força e coragem, me fazendo enxergar o lado positivo de tudo sempre. Amo você! Aos meus queridos pais, Adriano Rodrigues Filho e Maria Helena Quaiati Rodrigues, pelo amor incondicional, educação, suporte, força e determinação para que eu alcançasse meus sonhos. Meus maiores incentivadores . Amo vocês! AGRADECIMENTOS ESPECIAIS À minha querida orientadora Prof a . Dr a . Alexandra Mussolino de Queiroz, pela alegria ao ensinar e transmitir seu conhecimento ao próximo. Obrigada por todas as palavras encorajadoras. Agradeço a orientação, o empenho e a confiança que ajudaram a tornar possível este sonho tão especial. Obrigada pela oportunidade que me deu de estudar esse tema maravilhoso. Sou eternamente grata por nossos caminhos terem se cruzado. Foi uma honra ser sua orientada! Ao Prof. Dr. Fabrício Kitazono de Carvalho, por toda paciência, pela ajuda e contribuição neste trabalho. Obrigada por todos os ensinamentos. À minha amiga Fernanda Vicioni Marques, por todo apoio, por me receber sempre com uma palavra de incentivo, pela contribuição neste trabalho, por me escutar e ser uma grande amiga. À pós-doutoranda e minha querida amiga Lígia Maria Napolitano Gonçalves, por me acompanhar na realização das coletas dos exames, fazendo o atendimento ser perfeito, por me ensinar tudo com muita paciência, sempre me recebendo com sorriso no rosto e transmitir seus ensinamentos. Sua delicadeza comigo se traduz em carinho, apoio e incentivo. Acima de tudo criamos uma amizade para uma vida inteira. À Prof a . Dr a . Simone Cecilio Hallak Regalo, por acreditar em mim e pela oportunidade de convivermos todos esses anos, por compartilhar todo o aprendizado. Sou grata por tudo. À Prof a . Dr a . Selma Siéssere, por todos os ensinamentos, sempre com muita energia, disposição e carinho, além de sempre ter uma palavra amiga e incentivo. Ao Especialista de Laboratório da FORP-USP, Paulo Batista de Vasconcelos, pela disponibilidade e colaboração na realização deste trabalho.
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