The Rate of Demineralization in the Teeth Prepared by Bur and Er:YAG Laser

Journal of Lasers in Medical Sciences
Mahdi AbbasiMasomeh Hasani Tabatabaei

Abstract

Introduction: The present in vitro study evaluated the recurrence rate of caries following cavity preparations with bur (conventional technique) and irradiation by Erbium:Yttrium- Aluminum-Garnet (Er:YAG) laser through micro hardness test. Methods: A total of 72 human extracted molars were randomly divided into 3 groups and class 5 cavities were prepared on them with 3 different methods: G1) conventional bur, G2) Er:YAG laser irradiation alone and G3) laser irradiation + laser treatment. The specimens were immersed in the artificial caries solution with pH of 2.0 and 5.0 (12 days) and then immersed in re-mineralizing solution with pH of 7.0 (25 days). The specimens were longitudinally sectioned and their Vickers micro hardness was determined. Data were statistically analyzed by means of three-way analysis of variance (ANOVA) and Tukey multiple comparisons tests. Results: The micro hardness of the samples was affected by substrate type (enamel and dentin) and low values were achieved in dentin (P<0.001). Moreover, no significant difference was observed between preparation methods by bar and laser irradiation alone (P ≤0.499). Although laser irradiation + laser treatment decreased micro hardness of enamel compared to other method...Continue Reading

References

Feb 24, 2001·Journal of Clinical Laser Medicine & Surgery·M HossainK Matsumoto
Feb 24, 2001·The Bulletin of Tokyo Dental College·A KameyamaY Hirai
May 10, 2001·Lasers in Surgery and Medicine·N GutknechtF Lampert
Jan 22, 2002·Journal of Clinical Laser Medicine & Surgery·M HossainK Matsumoto
Sep 19, 2003·Journal of Clinical Laser Medicine & Surgery·A C B DelbemL H Theodoro
Sep 16, 2004·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Magda K YamadaFumio Watari
Jul 23, 2005·Lasers in Surgery and Medicine·Ana Cecilia Corrêa AranhaCarlos de Paula Eduardo
Feb 1, 2006·Dental Materials Journal·Jung-Ho KimYong Hoon Kwon
Oct 19, 2006·Journal of Dentistry·Yuanyuan Liu, Chin-Ying Stephen Hsu
Jun 20, 2007·Microscopy Research and Technique·Patricia Moreira FreitasCarlos de Paula Eduardo
Nov 3, 2007·Photomedicine and Laser Surgery·Katleen Ilse Maria Delmé, Roeland Jozef Gentil De Moor
Oct 21, 2010·Journal of Clinical Periodontology·Pauli T MattilaMatti L E Knuuttila
Nov 7, 2012·Caries Research·Y LiuS H Teoh

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