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Year : 2012  |  Volume : 6  |  Issue : 2  |  Page : 46-50

Alternate way of etching enamel for effective clinical management during practice

1 Department of Orthodontics, D.J College of Dental Sciences, Modinagar, Uttar Pradesh, India
2 A.E.C.S Maaruti Dental College, Bangalore, Karnataka, India

Correspondence Address:
Krishna Arora
Department of Orthodontics, D.J College of Dental Sciences, Ajit Mahal Niwari Road Modinagar, Ghaziabad - 201 204
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-2868.106646

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Objectives: To test the shear bond strength of brackets bonded to enamel etched with Erbium: Yttrium-aluminium-garnet laser (Er YAG) at different power outputs of 1, 2, and 2.5 W and to check the surface characteristics of enamel using scanning electron microscope. Materials and Methods: Human premolars that had been extracted for orthodontic reason were used. Enamel was then etched using conventional acid etch technique and Er:YAG laser at three different power outputs. Few teeth did not undergo shear test but prepared for scanning electron microscope (SEM) evaluation. Results: The shear bond strength associated with the 1 W laser irradiation was significantly less than the strengths obtained with the other groups. Both the 2 and 2.5 W laser irradiations were capable of etching enamel in the same manner like with acid etching. Conclusion: The mean shear bond strength and enamel surface etching obtained with an Er:YAG laser is comparable to that obtained with acid etching and an alternate to acid etching.

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