根据青少年和成年人牙骨质厚度估算牙龄的新公式:法医学方面。

IF 2.2 3区 医学 Q1 MEDICINE, LEGAL International Journal of Legal Medicine Pub Date : 2024-11-01 Epub Date: 2024-08-03 DOI:10.1007/s00414-024-03297-x
Minja Birimiša, Jelena Dumančić, Marin Vodanović, Sandra Anić-Milošević, Hrvoje Brkić
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引用次数: 0

摘要

目的:我们的研究旨在根据沉积牙水泥的厚度,建立青少年、成年人和老年人的牙齿年龄估计公式并确定其精确度:我们的研究旨在根据沉积牙水泥的厚度,为青少年、成年人和老年人的牙齿年龄估算建立方程并确定其精确度:研究样本包括 206 颗供体牙,男女均有(10 至 82 岁)。在 ISOMET 1000 型切割机上对牙根的根尖、中部和颈部进行横向切割(6 刀)(切片厚度为 0.3 至 0.5 μm)。使用光学显微镜和奥林巴斯EP50照相机测量切口上的骨水泥厚度,每次测量之前都要进行显微镜校准。顺时针在每个切口的 4 个测量点进行测量。使用统计软件包 STATISTICA 12.0 StatSoft, Inc. 2013 和 MedCalc® 22.0 版本进行统计分析:平均骨水泥厚度(MCT)从根尖切口到颈部切口明显下降(P 53岁):结论:建议在法医分析中使用所得出的等式来估计牙齿年龄。
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New equation for estimation of dental age by tooth cementum thickness in adolescents and adults: forensic aspects.

Objective: Our research was aimed to establish the equation and to determine its precision for dental age estimation in adolescents, adults and the elderly based on the thickness of deposited dental cement.

Design: The study sample consisted of 206 donor teeth of both sexes (10 to 82 years of age). The roots were transversely cut (6 cuts) on an ISOMET 1000 cutter at apical, middle, and cervical parts (slice thickness 0.3 to 0.5 μm). Measurements of cement thickness on incisions were made with a light microscope and an Olympus EP50 camera with previous microscope calibration for each measurement episode. Measurements were carried out clockwise at 4 measuring points on each incision. Statistical analyses were conducted using statistical software packages STATISTICA version 12.0 StatSoft, Inc. 2013, and MedCalc® version 22.0.

Results: Mean cement thickness (MCT) significantly declined from apical to cervical cuts (P < 0.001, ANOVA) and was thicker in teeth with a destroyed tooth crown (P < 0.001, ANOVA) and in molars compared to incisors (P < 0.001, ANOVA). MCT was greater in men and in teeth with more than one root but without reaching statistical significance. MCT showed a significant increase from the second decade of chronological age with a peek at sixth decade and declined to the ninth decade (P < 0.001, ANOVA). Piecewise linear regression defined a breakpoint age of 53 years, so two different equations were calculated (≤ 53 years and > 53 years).

Conclusions: The resulting equation is recommended for estimating dental age in forensic analyses.

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来源期刊
CiteScore
5.80
自引率
9.50%
发文量
165
审稿时长
1 months
期刊介绍: The International Journal of Legal Medicine aims to improve the scientific resources used in the elucidation of crime and related forensic applications at a high level of evidential proof. The journal offers review articles tracing development in specific areas, with up-to-date analysis; original articles discussing significant recent research results; case reports describing interesting and exceptional examples; population data; letters to the editors; and technical notes, which appear in a section originally created for rapid publication of data in the dynamic field of DNA analysis.
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