Tooth crown mesiodistal measurements for the determination of sexual dimorphism across a range of populations: A systematic review and meta-analysis.
Tooth crown mesiodistal measurements for the determination of sexual dimorphism across a range of populations: A systematic review and meta-analysis.
复制标题
牙冠近远中测量用于确定一系列人群的性别二态性：系统评价和荟萃分析。
DOI：
--
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
E. Michel
中科院分区：
文献类型：
--
作者：
P. R. D. da Silva;M. C. Lopes;I. E. Martins;M. G. Haye Biazevic;E. Michel
目标
本研究的目的是确定之前小型研究中报告的牙冠性别二态性模式是否可以推广到更广泛的人群。
文献综述
两名独立审查员进行了系统的文献综述。 2015 年 10 月至 2016 年 7 月检索了以下数据库：PubMed、Scopus、Lilacs、ScienceDirect、Medline 和 Cochrane Reviews。搜索没有语言限制。
选择标准
纳入标准包括调查近远中恒牙的原始研究，报告了样本群体和标准差。在纳入的研究中，除第三磨牙外，所有右侧牙齿均按性别进行了测量和区分。定量数据合成和荟萃分析中纳入了 31 项研究。对非人类牙齿、骨骼遗骸或过于特定的研究人群的研究被排除在外。
主要结果
涉及 6481 名参与者的 31 项试验为牙齿的荟萃分析提供了数据。近远中牙冠的性别二态性存在于一系列人群的所有牙齿中，主要是下尖牙（5.73%）和上颌尖牙（4.72%），其次是下第二磨牙（3.54%）和上第二磨牙（3.20%），最后是下第一磨牙（3.14%）和上第一磨牙（2.64%）。
结论
所有人类牙齿都存在小程度的性别二态性。第二臼齿和犬齿表现出最大的性别二态性。此外，生活在不同地理区域的群体中近远中牙冠存在较小的种族差异；然而，不可能建立适用于所有人群的单一值。
OBJECTIVE
The aim of this study was to determine whether the tooth crown sexual dimorphism pattern reported in previous small studies can be generalized for a broader range of populations.
LITERATURE REVIEW
A systematic literature review was performed by two independent examiners. The following databases were searched from October 2015 to July 2016: PubMed, Scopus, Lilacs, ScienceDirect, Medline, and Cochrane Reviews. No language restrictions were applied to the search.
SELECTION CRITERIA
The inclusion criteria comprised original studies investigating mesiodistal permanent teeth that reported the sample population and standard deviation. All right-sided teeth, except the third molars, were measured and separated by sex in the included studies. Thirty-one studies were included in the quantitative data synthesis and meta-analysis. Studies of non-human teeth, skeletal remains, or an overly specific study population were excluded.
MAIN RESULTS
Thirty-one trials, involving 6481 participants, provided data for the meta-analysis of teeth. Sexual dimorphism in mesiodistal crowns was found in all teeth across a range of populations, principally in lower canines (5.73%) and maxillary canines (4.72%), followed by the lower second molars (3.54%) and upper second molars(3.20%), and finally in the lower first molars(3.14%) and upper first molars(2.64%).
CONCLUSIONS
A small degree of sexual dimorphism exists in all human teeth. Second molars and canines show the greatest sexual dimorphism. Additionally, smaller racial differences are present in mesiodistal crowns among groups living in different geographic areas; however, it is not possible to establish a single value applicable for all populations.