Cutting efficiency of short and very short pulsed Er:YAG lasers at different frequencies on dentine and enamel

Aldo Brugnera Jr.; Melissa A. Marchesan; Danilo MZ Guerisoli; Reginaldo Santana da Silva; Jesus Djalma Pecora D.D.S.

doi:10.1117/12.424506

27 April 2001 Cutting efficiency of short and very short pulsed Er:YAG lasers at different frequencies on dentine and enamel

Aldo Brugnera Jr., Melissa A. Marchesan, Danilo MZ Guerisoli, Reginaldo Santana da Silva, Jesus Djalma Pecora D.D.S.

Author Affiliations +

Proceedings Volume 4249, Lasers in Dentistry VII; (2001) https://doi.org/10.1117/12.424506
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

This study was to determine the weight loss caused by the use of Er:YAG laser on enamel and dentine using short and very short pulses and two frequencies. Researchers have reported that the Er:YAG laser ablates dental hard tissues more effectively and efficiently, with less thermal damage to the tooth, than other hard lasers. In this study, one hundred and twenty molars were cut into crown hemisections, were dried for 1 h at 37 degrees C and then weighed with a precision balance. Group 1: enamel short pulse 10 Hz; group 2: dentine short pulse 10 Hz; group 3: enamel very short pulse 10 Hz; group 4: dentine very short pulse 10 Hz; group 5: enamel short pulse 15 Hz; group 6: dentine short pulse 15 Hz; group 7: enamel very shot pulse 15 Hz; group 8: dentine very short pulse 15 Hz. The results of short and very short pulse were statistically similar regardless of the type of tissue and the frequency used. Concluding, enamel ablation with the Er:YAG laser shows lower efficiency than dentin ablation, very short pulse mode ablates dental tissue with the same efficacy than short pulse mode.

Citation Download Citation

Aldo Brugnera Jr., Melissa A. Marchesan, Danilo MZ Guerisoli, Reginaldo Santana da Silva, and Jesus Djalma Pecora D.D.S. "Cutting efficiency of short and very short pulsed Er:YAG lasers at different frequencies on dentine and enamel", Proc. SPIE 4249, Lasers in Dentistry VII, (27 April 2001); https://doi.org/10.1117/12.424506

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