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Morphological effects of ArF excimer laser irradiation on enamel and dentin
Author(s) -
WilderSmith Petra,
Lin Stephanie,
Nguyen Alan,
Liaw LihHuei,
Arrastia Anna Marie A.,
Lee Jon P.,
Berns Michael W.
Publication year - 1997
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/(sici)1096-9101(1997)20:2<142::aid-lsm4>3.0.co;2-q
Subject(s) - enamel paint , irradiation , excimer laser , dentin , ablation , materials science , laser , excimer , biomedical engineering , dentistry , optics , composite material , medicine , physics , nuclear physics
Background and Objective The aim of this investigation to determine the range of morphological and ablative effects that can be achieved on dental enamel and dentin using ArF excimer laser irradiation at a wavelength of 193nm. Study Design/Materials and Methods Caries‐free coronal enamel and dentin surfaces of 20 extracted human teeth were subjected to irradiation at 193nm using a Lamda‐Physik model EMG 103 MSC and ArF fill. Morphology of cavity floors and walls were assessed by light microscopy and SEM. Results Morphological surface effects and ablation could be controlled effectively and reliably by choice of parameter combination, allowing the operator to achieve either a smooth, flat, or increasingly rough surface with differing degrees of selective ablation. No signs of thermal damage were apparent. Conclusion Excimer laser irradiation at 193nm provided clinically useful cavity preparations and surface morphological effects. Lasers Surg. Med. 20:142–148, 1997. © 1997 Wiley‐Liss, Inc.