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冠状牙髓：一种年龄生物标志物——儿童横断面影像学研究

Coronal pulp: An age biomarker - A cross-sectional radiographic study in children.

作者信息

Havale Raghavendra, Rao Dhanu G, Latha Athira Mohan, Nagaraj Manasa, Karobari Namira Mohammad, Tharay Namratha

机构信息

Department of Paedodontics and Preventive Dentistry, AME's Dental College and Hospital, Raichur, Karnataka, India.

出版信息

J Oral Maxillofac Pathol. 2020 May-Aug;24(2):389-394. doi: 10.4103/jomfp.JOMFP_342_19. Epub 2020 Sep 9.

DOI:10.4103/jomfp.JOMFP_342_19
PMID:33456252
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7802847/
Abstract

BACKGROUND

Age plays an important role in personal identification, treatment planning, forensic dentistry, and legal issues. It is one of the key identification tools for distinguishing one person from another and one population from another. An intraoral radiographic technique for age estimation is an easier approach. The widely accepted age estimation method in children is the Demirjian system. Tooth coronal index is another method that gained popularity for adult age estimation.

AIM

This study aims to estimate the tooth coronal index (TCI) of mandibular right and left second deciduous molar and its correlation with chronological age to derive a regression equation.

SETTINGS AND DESIGN

The present study is a cross-sectional radiographical study which is conducted in AME's Dental College and Hospital, Raichur, Karnataka, India.

MATERIALS AND METHODS

A total of 100 children aged 5-10 years were selected. Digital intraoral periapical radiographs were taken for right and left deciduous mandibular second molar. The length of the tooth crown and the coronal pulp cavity were measured. Statistical Analysis: Further, the data are subjected to student's unpaired -test and ANOVA test for the statistical analysis and simple linear regression to derive the regression equation.

RESULTS

TCI showed a statistically significant reduction with increasing age in both right and left mandibular deciduous second molar ( ≤ 0.05), and the strength of the correlation is moderate ( = -0.59) if age is correlated with TCI using simple linear regression.

CONCLUSION

The tooth coronal index method is found as a simple, noninvasive, nondestructive and cost-effective method for age assessment in children.

摘要

背景

年龄在个人身份识别、治疗计划制定、法医牙科学及法律问题中起着重要作用。它是区分不同个体和不同人群的关键识别工具之一。口腔内影像学技术用于年龄估计是一种较为简便的方法。儿童中广泛接受的年龄估计方法是德米尔坚系统。牙齿冠部指数是另一种在成人年龄估计中颇受欢迎的方法。

目的

本研究旨在评估下颌左右第二乳磨牙的牙齿冠部指数（TCI）及其与实际年龄的相关性，以推导回归方程。

设置与设计

本研究是一项横断面影像学研究，在印度卡纳塔克邦赖丘尔的AME牙科学院及医院开展。

材料与方法

共选取100名5至10岁的儿童。拍摄下颌左右第二乳磨牙的数字化口腔根尖片。测量牙冠长度及冠部牙髓腔。统计分析：此外，对数据进行学生独立样本t检验和方差分析以进行统计分析，并通过简单线性回归推导回归方程。

结果

左右下颌第二乳磨牙的TCI均随年龄增长呈统计学显著降低（P≤0.05），若采用简单线性回归将年龄与TCI相关联，相关性强度为中等（r = -0.59）。

结论

牙齿冠部指数法是一种用于儿童年龄评估的简单、无创、无损且经济有效的方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/bef8ffdade1e/JOMFP-24-389-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/aa028b8c7ebe/JOMFP-24-389-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/13a8eb4d4c29/JOMFP-24-389-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/572a35e31b15/JOMFP-24-389-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/1bb13b594c6b/JOMFP-24-389-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/d8ff28a67c7b/JOMFP-24-389-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/b8ba6d3c3a45/JOMFP-24-389-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/bef8ffdade1e/JOMFP-24-389-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/aa028b8c7ebe/JOMFP-24-389-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/13a8eb4d4c29/JOMFP-24-389-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/572a35e31b15/JOMFP-24-389-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/1bb13b594c6b/JOMFP-24-389-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/d8ff28a67c7b/JOMFP-24-389-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/b8ba6d3c3a45/JOMFP-24-389-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9bd6/7802847/bef8ffdade1e/JOMFP-24-389-g007.jpg

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2
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J Forensic Dent Sci. 2017 Sep-Dec;9(3):177. doi: 10.4103/jfo.jfds_60_16.
3
Applicability of Cameriere's and Drusini's age estimation methods to a sample of Turkish adults.
《乳磨牙髓室及牙冠三维分析：一项体外研究》。
Int J Environ Res Public Health. 2022 Jul 29;19(15):9279. doi: 10.3390/ijerph19159279.
卡梅里埃和德鲁西尼年龄估计方法在土耳其成年人样本中的适用性。
Dentomaxillofac Radiol. 2017 Oct;46(7):20170026. doi: 10.1259/dmfr.20170026. Epub 2017 Jul 14.
4
Age Assessment in Children: A Novel Cameriere's Stratagem.儿童年龄评估：一种新型的卡梅里埃方法。
Int J Clin Pediatr Dent. 2016 Oct-Dec;9(4):330-334. doi: 10.5005/jp-journals-10005-1387. Epub 2016 Dec 5.
5
Age estimation standards for a Western Australian population using the coronal pulp cavity index.利用冠牙髓腔指数评估西澳大利亚人群的年龄标准。
Forensic Sci Int. 2013 Sep 10;231(1-3):412.e1-6. doi: 10.1016/j.forsciint.2013.04.004. Epub 2013 May 7.
6
Three-dimensional observation of decrease in pulp cavity volume using micro-CT: age-related change.使用微型计算机断层扫描对牙髓腔体积减小的三维观察：与年龄相关的变化
Bull Tokyo Dent Coll. 2010;51(1):1-6. doi: 10.2209/tdcpublication.51.1.
7
Age estimation in Indians from pulp/tooth area ratio of mandibular canines.基于下颌尖牙牙髓/牙体比值的印度人年龄推断。
Forensic Sci Int. 2010 Apr 15;197(1-3):125.e1-4. doi: 10.1016/j.forsciint.2009.12.065. Epub 2010 Jan 27.
8
Age estimation of Malawian adults from dental radiographs.通过牙科X光片估计马拉维成年人的年龄
West Afr J Med. 2005 Oct-Dec;24(4):329-33. doi: 10.4314/wajm.v24i4.28227.
9
Estrogen receptors in human pulp tissue.人类牙髓组织中的雌激素受体。
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003 Mar;95(3):340-4. doi: 10.1067/moe.2003.9.
10
The effects of estrogen deficiency on glycosylation of odontoblasts in rats.雌激素缺乏对大鼠成牙本质细胞糖基化的影响。
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