Pursnani Riya A, Saxena Ashish, Parihar Ajay, Chauhan Shikhar P, Verma Neha, Pushparekha Gururamchandran
Department of Pediatric and Preventive Dentistry, Government College of Dentistry, Indore, Madhya Pradesh, India.
Department of Oral Medicine and Radiology, Government College of Dentistry, Indore, Madhya Pradesh, India.
Int J Clin Pediatr Dent. 2024 Nov;17(11):1206-1210. doi: 10.5005/jp-journals-10005-2985. Epub 2024 Dec 19.
The golden proportion is based on the premise that there is a link between natural beauty and mathematics. The study aimed to analyze the mesiodistal width of maxillary anterior teeth in primary and permanent dentition to determine whether a golden proportion exists among them.
Sixty subjects were randomly selected in accordance with inclusion and exclusion criteria. Participants were divided into two groups, each comprising 30 children with primary dentition between 3 and 6 years old, and 30 children with permanent dentition between 12 and 13 years old. Intraoral photographs were taken using a smartphone (in-built sensor: Sony IMX890, focal length: 24 mm, aperture: f/1.8) and a cheek retractor, with the head upright and the occlusal plane parallel to the floor. The distance between the participant and the camera was fixed at 4 cm. The digital photographic images were transferred to a computer, and the perceived mesiodistal width was measured for anterior teeth using Adobe Photoshop CS (version 8) software.
The ratio of lateral incisor to central incisor was not found to differ significantly between permanent and primary dentition (-value > 0.05). However, the ratio of canine to lateral incisor was significantly greater in primary dentition compared to permanent dentition (-value < 0.05).
The study revealed that the golden proportion was inconsistent in terms of relative tooth width in primary dentition.
The golden proportion existing in permanent dentition serves as a guide for restoring severely mutilated anterior teeth, so it is important to assess whether the golden proportion exists in primary dentition.
Pursnani RA, Saxena A, Parihar A, Comparing the Existence of Golden Proportion Using Maxillary Anterior Teeth Dimensions in Primary and Permanent Dentition: A Cross-sectional Study. Int J Clin Pediatr Dent 2024;17(11):1206-1210.
黄金比例基于自然美与数学之间存在联系这一前提。本研究旨在分析乳牙列和恒牙列中上颌前牙的近远中宽度，以确定它们之间是否存在黄金比例。
根据纳入和排除标准随机选取60名受试者。参与者被分为两组，每组包括30名3至6岁的乳牙列儿童和30名12至13岁的恒牙列儿童。使用智能手机（内置传感器：索尼IMX890，焦距：24毫米，光圈：f/1.8）和脸颊牵开器拍摄口腔内照片，头部直立，咬合平面与地面平行。参与者与相机之间的距离固定为4厘米。将数码照片图像传输到计算机上，使用Adobe Photoshop CS（版本8）软件测量前牙的近远中宽度。
未发现恒牙列和乳牙列中外侧门牙与中切牙的比例有显著差异（P值>0.05）。然而，与恒牙列相比，乳牙列中尖牙与外侧门牙的比例显著更高（P值<0.05）。
该研究表明，乳牙列中相对牙齿宽度方面的黄金比例并不一致。
恒牙列中存在的黄金比例可作为修复严重受损前牙的指导，因此评估乳牙列中是否存在黄金比例很重要。
Pursnani RA, Saxena A, Parihar A, 比较乳牙列和恒牙列中使用上颌前牙尺寸的黄金比例的存在情况：一项横断面研究。国际临床儿科牙科学杂志2024；17(11):1206 - 1210。
