Laser-Induced Breakdown Spectroscopy Coupled with PCA Study of Human Tooth

被引：11

作者：

Pathak, A. K. ^{[1
]}

Singh, Ankita ^{[2
]}

Kumar, Rohit ^{[3
]}

Rai, A. K. ^{[3
]}

机构：

[1] Ewing Christian Coll, Dept Phys, Allahabad 211003, Uttar Pradesh, India

[2] Banaras Hindu Univ, Inst Med Sci, Varanasi 221005, Uttar Pradesh, India

[3] Univ Allahabad, Dept Phys, Chaudhary Mahadeo Prasad Degree Coll, Allahabad 211002, Uttar Pradesh, India

来源：

NATIONAL ACADEMY SCIENCE LETTERS-INDIA | 2019年 / 42卷 / 01期

关键词：

LIBS; Human tooth; Enamel; Dentin; Cementum; PCA; TEETH; SILICON; DEPOSITION; PATTERN; LEAD;

D O I：

10.1007/s40009-018-0735-x

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The present study focuses on the laser-induced breakdown spectroscopy (LIBS) studies on different parts of tooth samples. The hardness of different parts of tooth samples belonging to different age groups has been studied using ionic-to-atomic intensity ratio of Ca spectral line. From this ratio, we infer that enamel is the hardest part of teeth. The principal component analysis (PCA) on LIBS data of different parts of teeth gives PC1 (96%) and PC2 (4%), which explains maximum variance present in data set. Therefore, this work demonstrates the suitability of LIBS along with PCA for routine in vitro/in vivo dental practices.

引用

页码：87 / 90

页数：4

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