Department of Orthodontics and Prosthodontics, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, China.
Department of Orthodontics and Prosthodontics, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, China.
Am J Orthod Dentofacial Orthop. 2022 Jan;161(1):92-102. doi: 10.1016/j.ajodo.2020.06.051. Epub 2021 Aug 25.
The space on each side of the mouth, between the commissure of the mouth and the buccal surface of the last visible tooth, is called the buccal corridor. The size of the buccal corridor can affect perceptions of facial esthetics. We analyzed the perceptions of orthodontists, laypersons, and orthodontic patients regarding the size of buccal corridors in people with brachyfacial, mesofacial, and dolichofacial types.
Photographs of 1 male and 1 female model were modified digitally into brachyfacial, mesofacial, and dolichofacial types. Each facial type was further modified to create 5 sizes of buccal corridors. Orthodontists, adult orthodontic patients, and laypersons were invited to rate the photographs.
Orthodontists rated lower than the other groups of raters when they evaluated the female model with the buccal corridors of 20% (P <0.05). Laypersons could not distinguish the changes of the buccal corridors when evaluating the male model with brachyfacial and mesofacial (P >0.05). Orthodontic patients rated significantly higher than the orthodontists and the laypersons when evaluating the dolichofacial type of both models (P <0.05).
Orthodontists are more sensitive to the buccal corridors than are orthodontic patients and laypersons. It is only necessary to consider eliminating the patient's buccal corridors when the buccal corridor area ratio is over 15%.
口腔两侧口角与最后可见牙齿颊面之间的空间称为颊廊。颊廊的大小会影响对面部美观的感知。我们分析了正畸医生、非专业人士和正畸患者对短面型、中面型和长面型人群颊廊大小的感知。
通过数字技术将 1 名男性和 1 名女性模型修改为短面型、中面型和长面型。每种面型进一步修改为 5 种不同大小的颊廊。邀请正畸医生、成人正畸患者和非专业人士对照片进行评分。
正畸医生在评估女性模型颊廊为 20%时的评分低于其他组（P<0.05）。非专业人士在评估短面型和中面型男性模型时无法区分颊廊的变化（P>0.05）。正畸患者在评估两个模型的长面型时的评分明显高于正畸医生和非专业人士（P<0.05）。
正畸医生比正畸患者和非专业人士对颊廊更敏感。只有当颊廊面积比超过 15%时，才需要考虑消除患者的颊廊。
