Acoustic comparison of Er,Cr:YSGG laser and dental high speed handpiece for primary anterior tooth preparation

Monserrat Jorden; Jung-Wei Chen; Elisabeth Easley; Yiming Li; R. Steven Kurti

doi:10.1117/12.2003048

25 March 2013 Acoustic comparison of Er,Cr:YSGG laser and dental high speed handpiece for primary anterior tooth preparation

Monserrat Jorden, Jung-Wei Chen, Elisabeth Easley, Yiming Li, R. Steven Kurti

Author Affiliations +

Proceedings Volume 8566, Lasers in Dentistry XIX; 85660K (2013) https://doi.org/10.1117/12.2003048
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

The acoustics of a dental hard tissue laser (Er,Cr:YSGG laser, Waterlase MD, Biolase, USA) and a traditional dental high speed hand piece (Midwest®, Dentsply International, USA) were compared in vitro using a simple approach that can be easily adapted for in vivo studies. Thirty one extracted caries and restoration free primary anterior teeth were selected. These teeth were sectioned along a symmetry axis to give two identical halves for use in a split study. These halves were randomly assigned to either the laser (experimental) or the high speed (control) group. A miniature electret microphone was coupled to the sample using a polymer and used to collect the acoustic signal at the interface of the pulp chamber. This signal was captured periodically by a digitizing oscilloscope and multiple traces were stored for subsequent analysis. 2x1x1mm³ preparations were made according to manufacturers recommendations for the given method. Each cavity was prepared by the same clinician and calibration tests were performed to ensure consistency. The measurements indicated that the peak acoustic pressures as well as cumulative acoustic effects (due to duty cycle) were significantly higher (P<0.001, T-test) with the dental hand piece than with the dental laser. Our study suggests the need for further investigations into the neurological implications of acoustic effects in dental patient care such as pain studies.

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Monserrat Jorden, Jung-Wei Chen, Elisabeth Easley, Yiming Li, and R. Steven Kurti "Acoustic comparison of Er,Cr:YSGG laser and dental high speed handpiece for primary anterior tooth preparation", Proc. SPIE 8566, Lasers in Dentistry XIX, 85660K (25 March 2013); https://doi.org/10.1117/12.2003048

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KEYWORDS

Acoustics

Teeth

Laser dentistry

Laser drilling

Sensors

Laser tissue interaction

Dentistry

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