Determining of canine position by multiple facial landmarks to achieve natural esthetics in complete denture treatment.
Determining of canine position by multiple facial landmarks to achieve natural esthetics in complete denture treatment.
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DOI：
10.1016/j.prosdent.2020.11.022
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发表时间：
2022-06
期刊：
影响因子：
--
通讯作者：
Soonsawad P
中科院分区：
文献类型：
--
作者：
Srimaneekarn N;Arayapisit T;Pooktuantong O;Cheng HR;Soonsawad P
前牙的选择是全口义齿治疗的重要一步，不仅影响美观，而且影响咀嚼和发音。然而，传统的牙齿选择方法尚未完善，并且依赖于面部尺寸和比例，而不同种族的面部尺寸和比例有所不同。本临床研究的目的是探讨齿间宽度与尖牙间距离之间的关系，并比较不同临床确定犬齿位置的方法。 200 名年龄在 18 至 25 岁、上颌前牙 6 颗完整的泰国参与者（100 名男性和 100 名女性）参与了这项研究。采用数显游标卡尺测量齿间宽度和尖牙间距离，并采用配对样本t检验进行比较。为了确定犬齿的位置，通过两侧的犬齿画出两条参考线——鼻翼线（A线）和内眦至鼻翼线（IA线）。评估从每条参考线到尖牙尖端和远端接触点的水平距离，然后使用 1 样本 t 检验进行分析。男性和女性之间的所有测量值均显着不同 (P<.01)。两性的齿间宽度均大于尖牙间距离。在男性中，A 线与尖牙远端接触点重合 (P>.05)。相比之下，IA 线在左侧距尖牙远端接触点 3.5 ±3.6 mm，在右侧距尖牙远端接触点 3.9 ±3.4 mm。在女性中，A 线位于犬牙尖尖和远端接触点之间。左侧距远端接触点内侧 2.0 ±2.0 mm，右侧距远端接触点 1.8 ±2.0 mm。 IA 线在左侧距尖牙远端接触点 1.2 ±2.6 mm，在右侧距尖牙远端接触点 1.6 ±2.7 mm。两性的齿间宽度均大于尖牙间距离。 A 线在预测犬牙位置方面比 IA 线更具临床相关性。 A线可以直接确定无牙颌男性患者尖牙的远端接触点。然而，对于女性，应在 A 线远端增加约 2 毫米的距离，以定位两侧尖牙的远端接触点。
Anterior tooth selection is an important step in complete denture treatment as it plays a pivotal role not only in esthetics but also in mastication and pronunciation. However, conventional methods for tooth selection are not well established and rely on facial measurements and proportions, which vary among different ethnicities. The purpose of this clinical study was to investigate the relationship between interalar width and intercanine distance and to compare different clinical methods for determining the position of the canine tooth. Two hundred Thai participants (100 men and 100 women) aged 18 to 25 years old with 6 full maxillary anterior teeth were enrolled in this study. The interalar width and intercanine distance were measured with digital vernier calipers and compared by using the paired-samples t test. To determine the canine position, 2 reference lines—the alar line (A line) and the inner canthus of the eye to alar line (IA line)—were drawn through the canine on both sides. The horizontal distances from each reference line to the canine cusp tip and distal contact point were evaluated and then analyzed using the 1-sample t test. All measurements were significantly different between men and women (P<.01). Interalar width was greater than intercanine distance in both sexes. In men, the A line coincided with the canine distal contact point (P>.05). In contrast, the IA line was distal to the canine distal contact point by 3.5 ±3.6 mm on the left side and by 3.9 ±3.4 mm on the right side. In women, the A line was situated between the canine cusp tip and distal contact point. It was mesial to the distal contact point by 2.0 ±2.0 mm on the left side and by 1.8 ±2.0 mm on the right side. The IA line was distal to the canine distal contact point by 1.2 ±2.6 mm on the left side and by 1.6 ±2.7 mm on the right side. The interalar width is greater than the intercanine distance in both sexes. The A line is more clinically relevant than the IA line for predicting canine position. The A line can directly determine the distal contact point of the canine in edentulous male patients. However, in women, a distance of approximately 2 mm should be added distal to the A line to locate the distal contact point of the canine on both sides.
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影响因子：
4.6
作者：
HOFFMAN, W;BOMBERG, TJ;HATCH, RA
通讯作者：
HATCH, RA
影响因子：
1.2
作者：
Deogade, Suryakant Chhagan;Mantri, Sneha S;Rajoriya, Shivani
通讯作者：
Rajoriya, Shivani
影响因子：
2
作者：
de Lima Saintrain, Maria Vieira;Alvim de Souza, Eliane Helena
通讯作者：
Alvim de Souza, Eliane Helena
影响因子：
2.6
作者：
McCord, JF;Grant, AA
通讯作者：
Grant, AA
DOI：
10.1111/j.1532-849x.2006.00134.x
发表时间：
2006-11-01
期刊：
Journal of prosthodontics : official journal of the American College of Prosthodontists
影响因子：
--
作者：
Varjao, Fabiana Mansur;Nogueira, Sergio Sualdini
通讯作者：
Nogueira, Sergio Sualdini