In vitro study of the Nd:YAG laser effect on human dental enamel: optical and scanning electron microscope analysis (1999)
- Authors:
- Autor USP: EDUARDO, CARLOS DE PAULA - FO
- Unidade: FO
- Subjects: LASER; DENTÍSTICA
- Language: Inglês
- Abstract: Objective: The Nd:YAG laser irradiation of dental enamel was evaluated in enamel demineralization experiments in a Streptococcus mutans culture media. Summary Background Data: Previous studies had shown that a continuous wave Nd:YAG laser at an energy of approximately 67 mJ may induce an icreased acid resitance in human dental enamel when exposed to severe demineralization conditions. Methods: Enamel windows of 3x4 cm in the buccal surface were irradiated with a continous wave Nd:YAG laser at a wavelenghth of 1,064 'mü'm using energy densities of from 83.75 to 187.50 J/'cm IND.2'. Enamel windows of 3x4 cm on the lingual surface served as control (without the laser irradiation). The enamel windows were then exposed to a Streptococcus mutans culture media at a temperature of 37 grade celcius for 15 and 21 days. The laser effects and demineralization were exemined both by optical microscopy and scanning electron microscopy (SEM). Results: A comparison between the lased and the unlased windows of enamel showed fusion and recrystalization of the enamel and increased acid-resistance in all groups irradiated with the Nd:YAG laser. On the other hand, the 3x4 delimited enamel surfaces from the control group (not irradiated with the Nd:YAG laser) showed 100% desmineralization. Conclusions: these findings are consistent with the finding that laser irradiation of dental results in significante reduction of the effective solubiluty of enamel mineral
- Imprenta:
- Source:
- Título: Journal of Clinical Laser Medicine & Surgery
- Volume/Número/Paginação/Ano: v. 17, n. 4, p. 171-177, 1999
-
ABNT
PELINO, J E P et al. In vitro study of the Nd:YAG laser effect on human dental enamel: optical and scanning electron microscope analysis. Journal of Clinical Laser Medicine & Surgery, v. 17, n. 4, p. 171-177, 1999Tradução . . Acesso em: 15 jul. 2025. -
APA
Pelino, J. E. P., Mello, J. B., Eduardo, C. de P., & Jorge, A. O. C. (1999). In vitro study of the Nd:YAG laser effect on human dental enamel: optical and scanning electron microscope analysis. Journal of Clinical Laser Medicine & Surgery, 17( 4), 171-177. -
NLM
Pelino JEP, Mello JB, Eduardo C de P, Jorge AOC. In vitro study of the Nd:YAG laser effect on human dental enamel: optical and scanning electron microscope analysis. Journal of Clinical Laser Medicine & Surgery. 1999 ; 17( 4): 171-177.[citado 2025 jul. 15 ] -
Vancouver
Pelino JEP, Mello JB, Eduardo C de P, Jorge AOC. In vitro study of the Nd:YAG laser effect on human dental enamel: optical and scanning electron microscope analysis. Journal of Clinical Laser Medicine & Surgery. 1999 ; 17( 4): 171-177.[citado 2025 jul. 15 ] - Materiais de preenchimento (procedimentos operatorios especias em relacao as restauracoes metalicas fundidas)
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