Onyeaso C O, Aderinokun G A
Department of Preventive Dentistry, College of Medicine/University College Hospital, University of Ibadan, Ibadan, Nigeria.
Int J Paediatr Dent. 2003 Sep;13(5):336-41. doi: 10.1046/j.1365-263x.2003.00478.x.
The purpose of the study was to investigate the relationship between a professionally derived index, the Dental Aesthetic Index, and some indications for orthodontic treatment as perceived by potential patients.
An epidemiological survey of 614 secondary school students, 327 males (53.3%) and 287 females (46.7%) was carried out in Ibadan, Nigeria. Children aged 12-18 years (mean age, 14.9+/-2.9 SD) were randomly selected, none of them had received previous orthodontic treatment. One examiner assessed the students using the Dental Aesthetic Index (DAI). Subjects were also asked to complete a questionnaire consisting of three questions concerning appearance, function, and speech, using a 5-point Likert scale.
Weak but statistically significant correlations were found for subjective assessments of appearance of teeth and the DAI (r=0.174; P<0.01) and between biting/chewing and appearance of teeth (r=0.095; P<0.05). Statistically significant correlations were found between appearance of teeth and speech (r=0.148; P<0.01) and biting/chewing and speech. The last showed the strongest correlation (r=0.268; P<0.01).
The study has shown weak but significant correlation between DAI and children's perceptions of the appearance of their teeth. We recommend further study involving both DAI and Index of Orthodontic Treatment Need (IOTN) for comparison in the Nigerian population.
本研究旨在调查专业得出的指数——牙科美学指数，与潜在患者所感知的一些正畸治疗指征之间的关系。
在尼日利亚伊巴丹对614名中学生进行了一项流行病学调查，其中男生327名（53.3%），女生287名（46.7%）。随机选取年龄在12 - 18岁（平均年龄14.9±2.9标准差）的儿童，他们均未接受过正畸治疗。一名检查者使用牙科美学指数（DAI）对学生进行评估。受试者还被要求使用5点李克特量表完成一份由关于外貌、功能和言语的三个问题组成的问卷。
牙齿外观的主观评估与DAI之间存在微弱但具有统计学意义的相关性（r = 0.174；P < 0.01），以及咬合/咀嚼与牙齿外观之间存在相关性（r = 0.095；P < 0.05）。牙齿外观与言语之间存在统计学意义的相关性（r = 0.148；P < 0.01），咬合/咀嚼与言语之间也存在相关性。最后一项显示出最强的相关性（r = 0.268；P < 0.01）。
该研究表明DAI与儿童对其牙齿外观的认知之间存在微弱但显著的相关性。我们建议在尼日利亚人群中进一步开展涉及DAI和正畸治疗需求指数（IOTN）的比较研究。
