Morphological effects of ArF excimer laser irradiation on enamel and dentin
1997; Wiley; Volume: 20; Issue: 2 Linguagem: Inglês
10.1002/(sici)1096-9101(1997)20
ISSN1096-9101
AutoresPetra Wilder‐Smith, Sophia Lin, Alan Nguyen, Lih‐Huei L. Liaw, Anna Marie A. Arrastia, Jon P. Lee, Michael W. Berns,
Tópico(s)Dental materials and restorations
ResumoBackground 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.
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