Otuyemi O D
Department of Preventive and Children's Dentistry, Obafemi Awolowo University, Nigeria.
Int J Paediatr Dent. 1994 Jun;4(2):81-5. doi: 10.1111/j.1365-263x.1994.tb00109.x.
A study of 1016 12-year-old Nigerian children was carried out to assess the relationship between traumatic injuries of anterior teeth, incisor overjet and lip competence. The prevalence of dental injuries was 10.9% which confirmed the results of previous studies. More boys than girls sustained injuries to their teeth. There were, however, no significant sex differences in increased overjet or lip competence. Of the 111 children with traumatic dental injuries, 71 (64.0%) had increased incisor overjet (> 3 mm) compared to 257 of the 905 children (28.4%) in the non-trauma group. Similarly, 72 (64.9%) of the trauma group had inadequate lip coverage compared to 224 (24.8%) in the non-trauma group. These differences were statistically significant (P < 0.001). It is concluded that incisor overjet of more than 3 mm and incompetent lips are significant predisposing factors to anterior dental injury in Nigerian children.
对1016名12岁的尼日利亚儿童进行了一项研究，以评估前牙创伤性损伤、切牙覆盖超突和唇功能之间的关系。牙齿损伤的患病率为10.9%，这证实了先前研究的结果。牙齿受伤的男孩比女孩多。然而，在切牙覆盖超突增加或唇功能方面，性别差异并不显著。在111名有创伤性牙齿损伤的儿童中，71名（64.0%）切牙覆盖超突增加（>3毫米），而非创伤组905名儿童中有257名（28.4%）切牙覆盖超突增加。同样，创伤组中有72名（64.9%）唇覆盖不足，而非创伤组中有224名（24.8%）唇覆盖不足。这些差异具有统计学意义（P<0.001）。研究得出结论，切牙覆盖超突超过3毫米和唇功能不全是尼日利亚儿童前牙损伤的重要诱发因素。
