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8~12歳のベトナム人小児における不正咬合と劇症口腔習癖:横断的研究
Malocclusion and Deleterious Oral Habits in Vietnamese Children Between the Ages of 8 and 12 years: A Cross Sectional Study.
PMID: 39677528
抄録
目的:
本研究の目的は、8~12歳のベトナム人小児における不正咬合と有害な口腔習慣との関係を明らかにすることである。
AIM: This study aimed to determine the relationship between malocclusion and deleterious oral habits in the Vietnamese children aged 8-12 years.
材料と方法:
8歳(16.8%)、9歳(18.5%)、10歳(20.7%)、11歳(21.4%)、12歳(22.6%)であり、第一大臼歯が4本とも萌出しており、矯正治療の既往がなく、第二大臼歯が喪失しているか、第二大臼歯の歯根や虫歯が存在し、第二大臼歯の表面材料が喪失しており、第二大臼歯のサイズが中顎方向で充填不足であった。有害な口腔習慣と不正咬合は、臨床検査と両親へのアンケートによって評価した。記述統計解析の結果、平均値と標準偏差が明らかになった。カテゴリー変数の比較にはカイ二乗検定とフィッシャーの正確検定を用いた。データは0.05未満で有意とみなされた。
MATERIALS AND METHODS: A cross-sectional descriptive analysis was undertaken on a total of 434 children (8-12 years old, 208 males and 226 females), separated into five age groups: 8 years old (16.8%), 9 years old (18.5%), 10 years old (20.7%), 11 years old (21.4%), and 12 years old (22.6%), with all four first permanent molars erupted, no previous orthodontic treatment, loss of the second primary molar or presence of the second primary molar root or decay, loss of surface material on the second primary molar, and underfilling of the second primary molar size in the mesiodistal direction. The deleterious oral habits and malocclusion were assessed through a clinical examination and questionnaires for parents. The descriptive statistical analysis revealed the following findings: mean and standard deviation. The chi-squared test and Fisher's exact test were used to compare categorical variables. The data were considered significant at < 0.05.
結果:
有害な口腔習慣は不正咬合と有意な関係があることが判明した。口呼吸習慣は前方開咬と関連していた(< 0.05)。舌を突き出す癖は、前方開咬(< 0.05)、後方交叉咬合(< 0.01)、4mm以上の過蓋咬合(< 0.01)、angle class I不正咬合(< 0.05)と関連していた。片側で噛む習慣は、後方交叉咬合(< 0.01)および後方開咬(< 0.05)と関連していた。ペン/鉛筆/爪を噛む習慣は正中線偏位と関連していた(< 0.05)。矯正治療の必要性を示す指標によると、年齢が高くなるにつれて、歯科医療のための矯正治療の必要性が高くなった。8歳では4.1%、9歳では5%、10歳では9%、11歳では19.4%、12歳では22.4%であった。歯の健康に対する矯正治療の必要性の分布は、子供の口腔内の悪い習慣の数によって有意に異なっていた(< 0.01)。
RESULT: Deleterious oral habits were found to have a significant relationship with malocclusion. Mouth breathing habits were associated with anterior open bites ( < 0.05). The tongue thrusting habit was associated with anterior open bite ( < 0.05), posterior crossbite ( < 0.01), overbite greater than 4 mm ( < 0.01), and angle class I malocclusion ( < 0.05). Chewing habits on one side were associated with posterior crossbite ( < 0.01) and posterior open bite ( < 0.05). The habit of pen/pencil/nail biting was associated with midline deviation ( < 0.05). As children got older, there was a greater need for orthodontic treatment for dental healthcare, according to the index of orthodontic treatment need. In the 8-year-old patient group, the need was 4.1%; in the 9-year-old patient group, it was 5%; in the 10-year-old patient group, it was 9%; in the 11-year-old patient group, it was 19.4%; and in the 12-year-old patient group, it was 22.4%. The distribution of orthodontic treatment needs for dental health was significantly different based on the number of deleterious oral habits children had ( < 0.01).
結論:
調査対象者の約30.6%に有害な口腔習慣がみられた。口呼吸、舌突出、ペン/鉛筆/爪咬み、片側咬みは不正咬合に大きな影響を与えた。
CONCLUSION: Abnormal oral habits were prevalent in about 30.6% of the study participants. Mouth breathing, tongue thrusting, pen/pencil/nail biting, and one-side chewing had a significant impact on malocclusion.