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Fs-laser ablation of teeth is temperature limited and provides information about the ablated components.
de Menezes, Rebeca Ferraz; Harvey, Catherine Malinda; de Martínez Gerbi, Marleny Elizabeth Márquez; Smith, Zachary J; Smith, Dan; Ivaldi, Juan C; Phillips, Alton; Chan, James W; Wachsmann-Hogiu, Sebastian.
Afiliação
  • de Menezes RF; Department of Endodontics/Restorative Dentistry, University of Pernambuco (UPE), 1650 Gal Newton Cavalcanti Avenue, Camaragibe, PE, 54753-020, Brazil.
  • Harvey CM; Center for Biophotonics, University of California-Davis, 2700 Stockton Blvd, Sacramento, CA, 95817, USA.
  • de Martínez Gerbi MEM; Laser Center, University of Pernambuco (UPE), 1650 Gal Newton Cavalcanti Avenue, Camaragibe, PE, 54753-020, Brazil.
  • Smith ZJ; Center for Biophotonics, University of California-Davis, 2700 Stockton Blvd, Sacramento, CA, 95817, USA.
  • Smith D; Department of Endodontics/Restorative Dentistry, University of Pernambuco (UPE), 1650 Gal Newton Cavalcanti Avenue, Camaragibe, PE, 54753-020, Brazil.
  • Ivaldi JC; Laser Center, University of Pernambuco (UPE), 1650 Gal Newton Cavalcanti Avenue, Camaragibe, PE, 54753-020, Brazil.
  • Phillips A; Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, 443 Huangshan Road, Hefei, Anhui, China.
  • Chan JW; Nikon Research Corporation of America, 12490 N. Rancho Vistoso Blvd., Suite130, Oro Valley, AZ, 85755-1880, USA.
  • Wachsmann-Hogiu S; Nikon Research Corporation of America, 1399 Shoreway Road, Belmont, CA, 94002-4107, USA.
J Biophotonics ; 10(10): 1292-1304, 2017 Oct.
Article em En | MEDLINE | ID: mdl-28544745
The goal of this work is to investigate the thermal effects of femtosecond laser (fs-laser) ablation for the removal of carious dental tissue. Additional studies identify different tooth tissues through femtosecond laser induced breakdown spectroscopy (fsLIBS) for the development of a feedback loop that could be utilized during ablation in a clinical setting. Scanning Election Microscope (SEM) images reveal that minimal morphological damages are incurred at repetition rates below the carbonization threshold of each tooth tissue. Thermal studies measure the temperature distribution and temperature decay during laser ablation and after laser cessation, and demonstrate that repetition rates at or below 10kHz with a laser fluence of 40 J/cm2 would inflict minimal thermal damage on the surrounding nerve tissues and provide acceptable clinical removal rates. Spectral analysis of the different tooth tissues is also conducted and differences between the visible wavelength fsLIBS spectra are evident, though more robust classification studies are needed for clinical translation. These results have initiated a set of precautionary recommendations that would enable the clinician to utilize femtosecond laser ablation for the removal of carious lesions while ensuring that the solidity and utility of the tooth remain intact.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Temperatura / Dente / Terapia a Laser / Lasers Tipo de estudo: Guideline Limite: Animals / Humans Idioma: En Revista: J Biophotonics Assunto da revista: BIOFISICA Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Temperatura / Dente / Terapia a Laser / Lasers Tipo de estudo: Guideline Limite: Animals / Humans Idioma: En Revista: J Biophotonics Assunto da revista: BIOFISICA Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha