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Perceptions of dental aesthetics of Class III and anterior open bite malocclusions: A comparison between 10-to 11-year-old schoolchildren and orthodontists

机译：对第三类和前开放性咬合错牙合的牙科美学的看法：10至11岁的学龄儿童与正畸医生的比较

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Objective: To compare perceptions of dental aesthetics of Class III and anterior open bite (AOB) malocclusions between 10-to 11-year-old Birmingham schoolchildren and orthodontists. Materials and Methods: Thirty-one orthodontists practicing in Birmingham (UK) and 383 school children aged 10-11 years from a random and representative sample of seven primary schools in South Birmingham participated in the study. Participants were asked to assess five anterior photographs of the dentition representing varying degrees of aesthetic impairment of Class III and AOB malocclusions. Perceptions of dental aesthetics were determined using the aesthetic component (AC) of the Index of Orthodontic Treatment Need (IOTN). Results: Perceptions of dental aesthetics were similar among males and females (P >.05). Both groups allocated the highest median AC score to the photo representing severe Class III malocclusion and the lowest to the photo representing mild Class III and AOB malocclusion. Differences in perceived dental aesthetics were significant for photos representing severe Class III and moderate AOB malocclusions, with orthodontists perceiving greater aesthetic impairment for severe Class III and schoolchildren for moderate AOB, respectively (P <.05). Conclusions: Schoolchildren and orthodontists perceived Class III malocclusions to have greater aesthetic impairment compared to AOB malocclusions. Surprisingly, none of the median AC scores allocated to the five photos were in the "Definite need" for treatment category. The IOTN may not be sensitive to these types of malocclusions. This finding merits further investigation.
机译：目的：比较10至11岁伯明翰小学生和正畸医生对III级牙齿美容和前开放咬合（AOB）错牙合的看法。材料和方法：31名在英国伯明翰执业的正畸医生和383名年龄在10-11岁之间的学童从南伯明翰的7所小学的随机样本中参加了这项研究。要求参与者评估五张前牙照片，这些照片分别代表了III类和AOB错牙合的美学损伤程度。使用“正畸治疗需求指数”（IOTN）的美学成分（AC）确定对牙齿美学的看法。结果：男性和女性对牙齿美学的看法相似（P> .05）。两组都为代表严重的III类错合的照片分配了最高的AC分数，而为代表轻微的III类和AOB错合的照片分配了最低的AC分数。对于代表严重的III级和中度AOB咬合不正的照片，感知到的牙齿美学差异显着，正畸医生分别认为严重的III级和中度AOB的学童的审美受损更大（P <.05）。结论：与AOB错牙合相比，学童和正畸医生认为III类错牙合具有更大的美学损害。令人惊讶的是，分配给五张照片的AC分数中位数均未在“绝对需要”治疗类别中。 IOTN可能对这些类型的错牙合不敏感。这一发现值得进一步调查。

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