{"title":"Evaluation of the parameters related to the golden ratio in the teeth of individuals from different countries: A systematic review and meta-analysis","authors":"","doi":"10.1016/j.prosdent.2023.09.032","DOIUrl":null,"url":null,"abstract":"<div><h3>Statement of problem</h3><div><span>Golden proportion, golden percentage, and recurring esthetic dental (RED) proportion are parameters used in </span>esthetic dentistry. However, a meta-analysis of studies evaluating these parameters in individuals from different countries is lacking.</div></div><div><h3>Purpose</h3><div>The purpose of this systematic review<span> and meta-analysis was to determine and compare the golden ratio, golden percentage, and RED ratio values as seen in the maxillary anterior teeth of individuals from different countries.</span></div></div><div><h3>Material and methods</h3><div>A systematic search was performed using PubMed/Medline, Google Scholar, and Web of Science to identify English and non-English language articles reporting the golden proportion, golden percentage, and RED proportion. The titles, full text, and abstracts were scanned by 2 investigators independently to identify articles that fulfilled the inclusion criteria. Using a meta-analysis software program, data extracted from each selected study were statistically combined using the random-effects model. Weighted mean differences, 95% confidence intervals, and heterogeneity were calculated for each measurement.</div></div><div><h3>Results</h3><div>The search protocol resulted in a total of 752 articles, but only 26 articles fulfilling the inclusion criteria were included in the meta-analysis. While the sample size varied between 46 and 384 in the 26 analyzed studies, a total of 3786 individuals from 12 countries were evaluated. No similarity was found using the esthetic parameters determined in the populations to which the meta-analysis was applied.</div></div><div><h3>Conclusions</h3><div>Mathematical formulas did not provide consistent results that would allow for their use as a standardized guide for creating natural looking smiles. Rather, dental esthetic ratios should be set based on the racial and ethnic character of a population.</div></div>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Prosthetic Dentistry","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022391323006480","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
Statement of problem
Golden proportion, golden percentage, and recurring esthetic dental (RED) proportion are parameters used in esthetic dentistry. However, a meta-analysis of studies evaluating these parameters in individuals from different countries is lacking.
Purpose
The purpose of this systematic review and meta-analysis was to determine and compare the golden ratio, golden percentage, and RED ratio values as seen in the maxillary anterior teeth of individuals from different countries.
Material and methods
A systematic search was performed using PubMed/Medline, Google Scholar, and Web of Science to identify English and non-English language articles reporting the golden proportion, golden percentage, and RED proportion. The titles, full text, and abstracts were scanned by 2 investigators independently to identify articles that fulfilled the inclusion criteria. Using a meta-analysis software program, data extracted from each selected study were statistically combined using the random-effects model. Weighted mean differences, 95% confidence intervals, and heterogeneity were calculated for each measurement.
Results
The search protocol resulted in a total of 752 articles, but only 26 articles fulfilling the inclusion criteria were included in the meta-analysis. While the sample size varied between 46 and 384 in the 26 analyzed studies, a total of 3786 individuals from 12 countries were evaluated. No similarity was found using the esthetic parameters determined in the populations to which the meta-analysis was applied.
Conclusions
Mathematical formulas did not provide consistent results that would allow for their use as a standardized guide for creating natural looking smiles. Rather, dental esthetic ratios should be set based on the racial and ethnic character of a population.
问题陈述：黄金比例、黄金百分比和反复美容牙科（RED）比例是美容牙科中使用的参数。然而，缺乏对来自不同国家的个体评估这些参数的研究的荟萃分析。目的：本系统综述和荟萃分析的目的是确定和比较不同国家个体上颌前牙的黄金比例、黄金百分比和RED比值。材料和方法：使用PubMed/Medline、Google Scholar和Web of Science进行系统搜索，以识别报告黄金比例、黄金百分比和RED比例的英语和非英语文章。标题、全文和摘要由2名研究人员独立扫描，以确定符合纳入标准的文章。使用荟萃分析软件程序，使用随机效应模型对从每项选定研究中提取的数据进行统计组合。计算每个测量的加权平均差、95%置信区间和异质性。结果：检索方案共产生752篇文章，但只有26篇符合纳入标准的文章被纳入荟萃分析。虽然在26项分析研究中，样本量在46至384之间，但对来自12个国家的3786人进行了评估。在应用荟萃分析的人群中，使用确定的美学参数没有发现相似性。结论：数学公式并没有提供一致的结果，无法将其作为创造自然微笑的标准化指南。相反，牙科美容比例应该根据人口的种族和民族特征来设定。
期刊介绍：
The Journal of Prosthetic Dentistry is the leading professional journal devoted exclusively to prosthetic and restorative dentistry. The Journal is the official publication for 24 leading U.S. international prosthodontic organizations. The monthly publication features timely, original peer-reviewed articles on the newest techniques, dental materials, and research findings. The Journal serves prosthodontists and dentists in advanced practice, and features color photos that illustrate many step-by-step procedures. The Journal of Prosthetic Dentistry is included in Index Medicus and CINAHL.
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