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自然微笑的评估：黄金比例、RED或黄金百分比。

Evaluation of natural smile: Golden proportion, RED or Golden percentage.

作者信息

Murthy B V Sreenivasan, Ramani Niketa

机构信息

Department of Conservative Dentistry and Endodontics, MS Ramaiah Dental College, Bangalore, India.

出版信息

J Conserv Dent. 2008 Jan;11(1):16-21. doi: 10.4103/0972-0707.43413.

DOI:10.4103/0972-0707.43413
PMID:20142879
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2813089/
Abstract

UNLABELLED

Creating geometric or mathematical proportion to relate the successive width of maxillary anterior teeth is a critical aspect in Esthetic dentistry. Golden proportion, recurring esthetic dental (RED) proportion and golden percentage are new theories in this field.

AIM

To investigate the existence and suitability of Golden proportion, Recurring Esthetic Dental, and Golden percentage between the widths of maxillary anterior teeth in individuals with natural dentition, with the aid of digital photographs and computer analysis.

MATERIAL AND METHODS

Standardized frontal images of 56 dental students, 20 male and 36 female, were captured. Each maxillary anterior tooth was digitally measured. Once the measurements were recorded, the three theories were applied and the data was analyzed statistically.

RESULTS

The golden proportion was found to exist only in 14-25% of the subjects, between perceived maxillary anterior teeth in natural dentition. The value of RED proportion was not constant, and as one moved distally, this proportion gradually increased. Furthermore, the results revealed that golden percentage was rather constant in terms of relative tooth width. Central incisor represented 22%, lateral incisor 15% and canine 13% of the width of six maxillary anterior teeth, as viewed from the front.

CONCLUSION

Both golden proportion and RED proportion are unsuitable methods to relate the successive width of the maxillary anterior teeth in natural dentition. However, the golden percentage theory can be applied if percentages are adjusted, taking into consideration the ethnicity of the population.

摘要

未标注

在美学牙科中，创建几何或数学比例以关联上颌前牙的连续宽度是一个关键方面。黄金比例、循环美学牙科（RED）比例和黄金百分比是该领域的新理论。

目的

借助数码照片和计算机分析，研究自然牙列个体上颌前牙宽度之间黄金比例、循环美学牙科比例和黄金百分比的存在情况及适用性。

材料与方法

拍摄了56名牙科学生（20名男性和36名女性）的标准化正面图像。对上颌每颗前牙进行数码测量。记录测量数据后，应用这三种理论并对数据进行统计分析。

结果

发现黄金比例仅在14%至25%的受试者自然牙列中可见的上颌前牙之间存在。RED比例的值并不恒定，随着向远中移动，该比例逐渐增加。此外，结果表明，就相对牙宽度而言，黄金百分比相当恒定。从正面看，中切牙占上颌六颗前牙宽度的22%，侧切牙占15%，尖牙占13%。

结论

黄金比例和RED比例都不适用于关联自然牙列中上颌前牙的连续宽度。然而，如果考虑人群的种族因素对百分比进行调整，黄金百分比理论可以应用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/4c541d458b01/JCD-11-16-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/1b911d933fc6/JCD-11-16-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/eec9ed315d91/JCD-11-16-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/fb7747b3d39f/JCD-11-16-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/e99cd3566e37/JCD-11-16-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/ccb08412b630/JCD-11-16-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/13acfdefccd4/JCD-11-16-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/8a3acb5caa09/JCD-11-16-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/cb8d393ba82d/JCD-11-16-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/74167d1444b8/JCD-11-16-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/4c541d458b01/JCD-11-16-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/1b911d933fc6/JCD-11-16-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/eec9ed315d91/JCD-11-16-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/fb7747b3d39f/JCD-11-16-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/e99cd3566e37/JCD-11-16-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/ccb08412b630/JCD-11-16-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/13acfdefccd4/JCD-11-16-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/8a3acb5caa09/JCD-11-16-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/cb8d393ba82d/JCD-11-16-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/74167d1444b8/JCD-11-16-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a8d6/2813089/4c541d458b01/JCD-11-16-g010.jpg

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