安氏Ⅰ类错合与安氏Ⅱ类错合儿童舌压相关因素的差异。
Differences in the factors associated with tongue pressure between children with class I and Class II malocclusions.
机构信息
Division of Developmental Stomatognathic Function Science, Department of Health Promotion, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, 803-8580, Kitakyushu, Japan.
出版信息
BMC Pediatr. 2021 Oct 28;21(1):476. doi: 10.1186/s12887-021-02956-x.
BACKGROUND
The relationship between tongue pressure and masticatory performance during the mixed dentition period in cases of Class II malocclusion has not been clarified. The aim of this study was to determine differences in tongue pressure-related factors, including maxillofacial morphology and masticatory performance, between Class I and Class II malocclusions during the mixed dentition period.
METHODS
A total of 56 children with Class I malocclusion (12 boys, 16 girls) or Class II malocclusion (16 boys, 12 girls) with mixed dentition were included in the present study. Height, body weight, hand grip strength, maximum occlusal force, maximum tongue pressure, masticatory performance, and the number of decayed, missing, and filled teeth were measured in all participants. Their lateral cephalograms were also evaluated. The means of all measurements were compared between Class I and Class II malocclusions. Pearson's correlation coefficients were used to determine associations between maximum tongue pressure and other variables for each type of malocclusion.
RESULTS
The maximum tongue pressure, hand grip strength, and maximum occlusal force in the Class II malocclusion group were significantly lower than those in the Class I malocclusion group (all, p < 0.05). The maximum tongue pressure was significantly positively correlated with hand grip strength, maximum occlusal force, masticatory performance, and SNB (sella, nasion, B point) angle in the Class I group (all, p < 0.05), and with height, body weight, and labial inclination of the central incisors in the Class II group (all, p < 0.05).
CONCLUSIONS
The maxillofacial morphometric factors associated with tongue pressure were clearly different between cases of Class I and Class II malocclusion with mixed dentition. Masticatory performance and tongue pressure were significantly positively correlated in cases of Class I malocclusion, but not in cases of Class II malocclusion.
背景
安氏Ⅱ类错（牙合）混合牙列期舌压与咀嚼效能的关系尚未阐明。本研究旨在确定安氏Ⅰ类与Ⅱ类错（牙合）混合牙列期与舌压相关的因素（包括颌面形态和咀嚼效能）的差异。
方法
本研究共纳入 56 名安氏Ⅰ类错（牙合）（男 12 例，女 16 例）或安氏Ⅱ类错（牙合）（男 16 例，女 12 例）的混合牙列期儿童。所有参与者均测量了身高、体重、握力、最大颌力、最大舌压、咀嚼效能以及龋齿、缺失和充填牙的数量，并对其侧位头颅进行了评估。比较了安氏Ⅰ类与Ⅱ类错（牙合）之间所有测量值的平均值。对每一种错（牙合）类型，采用 Pearson 相关系数分析最大舌压与其他变量之间的相关性。
结果
安氏Ⅱ类错（牙合）组的最大舌压、握力和最大颌力明显低于安氏Ⅰ类错（牙合）组（均 p<0.05）。安氏Ⅰ类错（牙合）组的最大舌压与握力、最大颌力、咀嚼效能和 SNB（蝶鞍、鼻根、B 点）角呈显著正相关（均 p<0.05），与安氏Ⅱ类错（牙合）组的身高、体重和中切牙唇倾呈显著正相关（均 p<0.05）。
结论
混合牙列期安氏Ⅰ类与Ⅱ类错（牙合）与舌压相关的颌面形态学因素明显不同。安氏Ⅰ类错（牙合）患者的咀嚼效能与舌压呈显著正相关，而安氏Ⅱ类错（牙合）患者则无相关性。
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