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.
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Univ Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
Ctr Tecnol Canavieira, BR-13400970 Piracicaba, SP, BrazilUniv Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
de Souza, Paulino Florencio
Santos Junior, Dario
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Univ Fed Sao Paulo, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, BrazilUniv Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
Santos Junior, Dario
Arantes de Carvalho, Gabriel Gustinelli
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Univ Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, BrazilUniv Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
Arantes de Carvalho, Gabriel Gustinelli
Nunes, Lidiane Cristina
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Univ Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, BrazilUniv Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
Nunes, Lidiane Cristina
Gomes, Marcos da Silva
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Univ Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, BrazilUniv Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
Gomes, Marcos da Silva
Bueno Guerra, Marcelo Braga
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Univ Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, BrazilUniv Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil
Bueno Guerra, Marcelo Braga
Krug, Francisco Jose
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Univ Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, BrazilUniv Sao Paulo, Ctr Energia Nucl Agr, BR-13416000 Piracicaba, SP, Brazil