Analysis of the stomatognathic system functions and mastication muscles in children affected by molar hypomineralization (MH): a cross-sectional study.

Autor: Carvalho MR; Ribeirão Preto School of Dentistry, University of São Paulo, Av. Do Café, Ribeirao Preto, São Paulo, Brazil., Molena KF; Ribeirão Preto School of Dentistry, University of São Paulo, Av. Do Café, Ribeirao Preto, São Paulo, Brazil., Regalo SCH; Ribeirão Preto School of Dentistry, University of São Paulo, Av. Do Café, Ribeirao Preto, São Paulo, Brazil.; National Institute for Translational Medicine (INCT-TM), Ribeirão Preto, Brazil., Gonçalves LMN; Ribeirão Preto School of Dentistry, University of São Paulo, Av. Do Café, Ribeirao Preto, São Paulo, Brazil., de Paula-Silva FWG; Ribeirão Preto School of Dentistry, University of São Paulo, Av. Do Café, Ribeirao Preto, São Paulo, Brazil., Vicioni-Marques F; Ribeirão Preto School of Dentistry, University of São Paulo, Av. Do Café, Ribeirao Preto, São Paulo, Brazil., de Vasconcelos PB; National Institute for Translational Medicine (INCT-TM), Ribeirão Preto, Brazil., de Carvalho FK; Ribeirão Preto School of Dentistry, University of São Paulo, Av. Do Café, Ribeirao Preto, São Paulo, Brazil. fabricio_kc@forp.usp.br., de Queiroz AM; Ribeirão Preto School of Dentistry, University of São Paulo, Av. Do Café, Ribeirao Preto, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry [Eur Arch Paediatr Dent] 2024 Oct; Vol. 25 (5), pp. 669-676. Date of Electronic Publication: 2024 Jul 05.
DOI: 10.1007/s40368-024-00925-3
Abstrakt: Purpose: To analyze the functions of the stomatognathic system in children with or without molar-incisor hypomineralization (MIH).
Methods: For this cross-sectional study, 72 children aged 6-12 years were recruited and divided in two groups: with MIH (G1) and without MIH (G2). T-SCAN was used to verify the distribution of occlusal contacts, gnathodynamometer to measure maximum molar bite force, and Iowa Oral Pressure Instrument (IOPI) to assess the strength of facial expression muscles. The t test and paired t test (p ≤ 0.05) were used for statistical comparisons.
Results: The molars affected by MIH exhibited lower distribution of occlusal forces (p < 0.001) and lower maximum molar bite force (p < 0.05) compared to the molars in the control group. However, there was no difference between the MIH-affected sides compared to the unaffected side, nor between the molars affected by MIH and their antagonists (p > 0.05). There were no differences in the forces of the facial expression muscles between the groups.
Conclusions: These findings suggest that MIH significantly impacts occlusal force distribution and bite force, but not facial expression musculature.
(© 2024. The Author(s), under exclusive licence to European Academy of Paediatric Dentistry.)
Databáze: MEDLINE
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