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

IF 2.3 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

European Archives of Paediatric Dentistry Pub Date : 2024-10-01 Epub Date: 2024-07-05 DOI:10.1007/s40368-024-00925-3

M R Carvalho, K F Molena, S C H Regalo, L M N Gonçalves, F W G de Paula-Silva, F Vicioni-Marques, P B de Vasconcelos, F K de Carvalho, A M de Queiroz

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引用次数: 0

Abstract

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.

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臼齿矿化不足（MH）患儿的口颌系统功能和咀嚼肌分析：一项横断面研究。

目的：分析患有或未患有磨牙-尖牙低矿化（MIH）的儿童的口颌系统功能：在这项横断面研究中，共招募了 72 名 6-12 岁的儿童，并将其分为两组：有臼齿-尖牙低矿化（MIH）（G1）和无臼齿-尖牙低矿化（MIH）（G2）。使用 T-SCAN 验证咬合接触的分布，使用咬合动力计测量最大臼齿咬合力，使用爱荷华口腔压力仪（IOPI）评估面部表情肌的力量。统计比较采用t检验和配对t检验（P≤0.05）：结果：受 MIH 影响的磨牙咬合力分布较低（P 0.05）。结果：受 MIH 影响的磨牙的咬合力分布较低（P 0.05），两组间面部表情肌的力量没有差异：这些研究结果表明，MIH对咬合力分布和咬合力有明显影响，但对面部表情肌没有影响。

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来源期刊

European Archives of Paediatric Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

4.40

自引率

9.10%

发文量

期刊介绍： The aim and scope of European Archives of Paediatric Dentistry (EAPD) is to promote research in all aspects of dentistry for children, including interceptive orthodontics and studies on children and young adults with special needs. The EAPD focuses on the publication and critical evaluation of clinical and basic science research related to children. The EAPD will consider clinical case series reports, followed by the relevant literature review, only where there are new and important findings of interest to Paediatric Dentistry and where details of techniques or treatment carried out and the success of such approaches are given.