Age-related Variations at the Cementodentinal Junction: An Ex Vivo Study.

IF 0.4 4区医学 Q4 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH

Puerto Rico Health Sciences Journal Pub Date : 2021-06-01

Miguel Muralles-Andrade, Noé Carreón-Aguiñaga, César Gaitán-Fonseca, Amaury Pozos-Guillén, Héctor Flores

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引用次数: 0

Abstract

Objective: The objective of this study was to determine the age-related anatomical changes that take place at the cementodentinal junction (CDJ).

Methods: Eighty-four teeth were extracted; 42 samples came from patients ranging in age from 18 to 30 years, and 42 came from patients aged from 40 to 60 years. Upper and lower and anterior and posterior teeth were included. Longitudinal slices were made, and 1% toluidine blue was used to stain all the samples prior to microscopic examination. Anatomical landmarks (apical foramen [AF], apical vertex, and cementoenamel junction) in the apical third were identified, and a pre-calibrated software package was employed to take digital measurements. Statistical analysis was performed by means of the Wilcoxon rank-sum test.

Results: The data obtained showed that there were anatomical variations in the apical third in the older patients and that these changes were related to the age of the patient. Narrower root canals and smaller CDJ diameters were found in older patients' samples.

Conclusion: The results of this study suggest that instrumentation and obturation should take place 1 mm from the AF in older patients, and not 0.5 mm, as is usually recommended.

本刊更多论文

牙骨质-牙本质交界处的年龄相关变异:离体研究。

目的:本研究的目的是确定发生在牙骨质交界处(CDJ)的年龄相关的解剖变化。方法:拔牙84颗;42份样本来自18 - 30岁的患者，42份样本来自40 - 60岁的患者。包括上、下、前、后牙。制作纵向切片，显微镜检查前用1%甲苯胺蓝染色。确定根尖三分之一的解剖标志(根尖孔[AF]，根尖顶点和牙釉质连接)，并使用预校准软件包进行数字测量。统计学分析采用Wilcoxon秩和检验。结果:获得的数据显示，老年患者的根尖三分之一存在解剖学上的变化，这些变化与患者的年龄有关。在老年患者样本中发现更窄的根管和更小的CDJ直径。结论:本研究结果表明，老年患者应在距房颤1mm处进行内固定和封闭，而不是通常推荐的0.5 mm处。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Puerto Rico Health Sciences Journal PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH-

CiteScore

0.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Puerto Rico Health Sciences Journal (PRHSJ) is the scientific journal of the University of Puerto Rico Medical Sciences Campus. It was founded in 1982 as a vehicle for the publication of reports on scientific research conducted in-campus, Puerto Rico and abroad. All published work is original and peer-reviewed. The PRHSJ is included in PubMed/Medline, SCOPUS, Latindex, EBSCO, SHERPA/RoMEO, Science Citation Index Expanded (SciSearch®) and Journal Citation Reports/Science Edition. All papers are published both online and in hard copy. From its beginning, the PRHSJ is being published regularly four times a year. The scope of the journal includes a range of medical, dental, public health, pharmaceutical and biosocial sciences research. The journal publishes full-length articles, brief reports, special articles, reviews, editorials, case reports, clinical images, and letters arising from published material.