Original scientific paper
Temperature Effect on Hard Dental Tissues and Amalgam Filling Induced by C 02 Laser Irradiotion
Ivica Anić
; Department of Dental Pahtology, School of Dentistry, University of Zagreb, Croatia
Adil Džubor
; VAMS Visual Analysis and Measurement Systems, Zagreb, Croatia
Jozo Šutalo
; Department of Dental Pahtology, School of Dentistry, University of Zagreb
Karolj Skala
; Department of Laser and Atomic Research, Ruder Bošković Institute, Zagreb, Croatia
Abstract
Effects of temperature changes on extracted human teeth, amalgam
surface and during ablation of cervical caries produced by C02 laser irradiation were examined. On extracted molars, the bottom of occlusal class I preparations were with output power of 3 W for 5 and 10 s. Temperature elevations recorded at crosssection surface of the holes of 3 mm in diameter, previously prepared on buccal surface toward pulp chamber, were between + 7.3°C and temperatures which were beyond the calibration range (>50°C) of the thermovision device. On non-polished amalgam class 11 restorations, laser power of 1 W for 3 s, measured at impact points, produced immediately after lasing a maximal rise in temperature higher than 50°C (>+15°C), beyond the camera calibration range. The same temperature rise was recorded after ablation of cervical caries with laser power of 2 W for 5 s.
Keywords
C02 laser; Dental hard tissue; Dental caries; Amalgam; Temperature changes
Hrčak ID:
99186
URI
Publication date:
15.9.1995.
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