上颌恒中切牙髓腔大小与年龄的形态计量学分析：一项间接数字化研究。
Morphometric analysis of pulp size in maxillary permanent central incisors correlated with age: An indirect digital study.
作者信息
Ravindra S V, Mamatha G P, Sunita J D, Balappanavar Aswini Y, Sardana Varun
机构信息
Department of Oral Medicine and Radiology, Teerthanker Mahaveer Dental College and Research Center, Pakbara, Moradabad, Uttar Pradesh, India.
Department of Oral Medicine and Radiology, Darshan Dental College and Hospital, Loyara, Udaipur, India.
出版信息
J Forensic Dent Sci. 2015 Sep-Dec;7(3):208-14. doi: 10.4103/0975-1475.172438.
CONTEXT
Teeth are hardest part of the body and are least affected by the taphonomic process. They are considered as one of the reliable methods of identification of a person in forensic sciences.
AIM
The aim of the following study is to establish morphometeric measurements by AutoCad 2009 (Autodesk, Inc) of permanent maxillary central incisors in different age groups of Udaipur population.
SETTING AND DESIGN
Hospital-based descriptive cross-sectional study carried out in Udaipur.
MATERIALS AND METHODS
A study was carried out on 308 subjects of both genders with the age range of 9-68 years. Standardized intra-oral radiographs were made by paralleling technique and processed. The radiographs were scanned and the obtained images were standardized to the actual size of radiographic film. This was followed by measuring them using software AutoCad 2009.
STATISTICAL ANALYSIS USED
F-test, post-hoc test, Pearson's correlation test.
RESULTS
For left maxillary central incisor, the total pulp area was found to be of 38.41 ± 12.88 mm and 14.32 ± 7.04 mm respectively. For right maxillary central incisor, the total pulp size was 38.39 ± 14.95 mm and 12.35 ± 5 mm respectively. Males (32.50, 32.87 mm(2)) had more pulp area when compared with females (28.82, 30.05 mm(2)).
CONCLUSION
There was a decrease in total pulp area with increasing age which may be attributed to secondary dentin formation.
背景
牙齿是人体最坚硬的部分，受埋藏学过程的影响最小。在法医学中，它们被认为是鉴定个人身份的可靠方法之一。
目的
以下研究的目的是通过AutoCad 2009（欧特克公司）建立乌代布尔不同年龄组人群上颌恒中切牙的形态测量数据。
设置与设计
在乌代布尔进行的基于医院的描述性横断面研究。
材料与方法
对308名年龄在9至68岁之间的男女受试者进行了研究。采用平行投照技术制作标准化口腔内X光片并进行处理。对X光片进行扫描，并将获得的图像标准化为X光胶片的实际尺寸。随后使用AutoCad 2009软件对其进行测量。
所用统计分析方法
F检验、事后检验、皮尔逊相关检验。
结果
左上颌中切牙的牙髓总面积分别为38.41±12.88平方毫米和14.32±7.04平方毫米。右上颌中切牙的牙髓总面积分别为38.39±14.95平方毫米和12.35±5平方毫米。男性（32.50、32.87平方毫米）的牙髓面积比女性（28.82、30.05平方毫米）更大。
结论
随着年龄的增长，牙髓总面积会减少，这可能归因于继发性牙本质的形成。
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