Dental age estimation in Indonesian adults: An investigation of the maxillary canine pulp-to-tooth volume ratio using cone-beam computed tomography.

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Imaging Science in Dentistry Pub Date : 2023-09-01 Epub Date: 2023-08-02 DOI:10.5624/isd.20230104
Khamila Gayatri Anjani, Rizky Merdietio Boedi, Belly Sam, Fahmi Oscandar
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Abstract

Purpose: This study was performed to develop a linear regression model using the pulp-to-tooth volume ratio (PTVR) ratio of the maxillary canine, assessed through cone-beam computed tomography (CBCT) images, to predict chronological age (CA) in Indonesian adults.

Materials and methods: A sample of 99 maxillary canines was collected from patients between 20 and 49.99 years old. These samples were obtained from CBCT scans taken at the Universitas Padjadjaran Dental Hospital in Indonesia between 2018 and 2022. Pulp volume (PV) and tooth volume (TV) were measured using ITK-SNAP, while PTVR was calculated from the PV/TV ratio. Using RStudio, a linear regression was performed to predict CA using PTVR. Additionally, correlation and observer agreement were assessed.

Results: The PTVR method demonstrated excellent reproducibility, and a significant correlation was found between the PTVR of the maxillary canine and CA (r=-0.74, P<0.01). The linear regression analysis showed an R2 of 0.58, a root mean square error of 5.85, and a mean absolute error of 4.31.

Conclusion: Linear regression using the PTVR can be effectively applied to predict CA in Indonesian adults between 20 and 49.99 years of age. As models of this type can be population-specific, recalibration for each population is encouraged. Additionally, future research should explore the use of other teeth, such as molars.

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印尼成年人的牙齿年龄估计:使用锥形束计算机断层扫描对上颌犬齿牙髓与牙齿体积比的调查。
目的:本研究利用锥束计算机断层扫描(CBCT)图像评估的上颌骨犬齿的牙髓与牙齿体积比(PTVR),开发了一个线性回归模型,以预测印度尼西亚成年人的年龄。材料和方法:从20岁至49.99岁的患者中采集了99只上颌尖牙的样本。这些样本是从2018年至2022年间在印度尼西亚帕贾贾兰大学牙科医院进行的CBCT扫描中获得的。使用ITK-SNAP测量牙髓体积(PV)和牙齿体积(TV),而根据PV/TV比率计算PTVR。使用RStudio,使用PTVR进行线性回归预测CA。此外,还评估了相关性和观察者的一致性。结果:PTVR方法重现性好,上颌尖牙的PTVR与CA之间存在显著相关性(r=-0.74,PR2为0.58,均方根误差为5.85,平均绝对误差为4.31h、 例如臼齿。
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来源期刊
Imaging Science in Dentistry
Imaging Science in Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
2.90
自引率
11.10%
发文量
42
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