European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
September 2012
Print ISSN:
0965-7452
Vol:
20
Issue:
3

Influence of Nd:YAG or Er:YAG Laser Surface Treatment on Microtensile Bond Strength of Indirect Resin Composites to Resin Cement Lasers Surface Treatment of Indirect Resin Composites

Abstract - This study evaluated the influence of the surface pretreatment of indirect resin composite (Signum, Admira Lab and Sinfony) on the microtensile bond strength of a resin cement. Sixty samples made of each brand were divided into 6 groups, according to surface treatment: (1) control; (2) controlled-air abrasion with Al2O3; (3) Er:YAG Laser 200mJ, 10Hz, for 10s; (4) Er:YAG Laser 300mJ, 10Hz, for 10 s; (5) Nd:YAG 80 mJ, 15Hz for 1 min; (6) Nd:YAG 120mJ, 15 Hz for 1 min. After treatments, all the groups received an application of 37% phosphoric acid and adhesive. The pair of blocks of the same brand were cemented to each other with dual resin cement. The blocks were sectioned to obtain resin-resin sticks (1x1mm) and analyzed by microtensile bond testing. The bond strength values were statistically different, irrespective of the surface treatment performed, with highest values for Sinfony (43.81MPa) and lowest values for Signum (32.33MPa). The groups treated with the Nd:YAG laser showed the lowest bond strength values and power did not interfere in the results, both for Nd:YAG laser and Er:YAG. Controlled-air abrasion with Al2O3 is an efficient surface treatment method and the use of the Nd:YAG and Er:YAG Lasers reduced bond strength, irrespective of the intensity of energy used.

KEYWORDS: adhesion, laser, resin composite.

Article Price
£15.00
Institution Article Price
£
Page Start
135
Page End
140
Authors
T.MF. Caneppele, A.C. de Oliveira Souza, G.R. Batista, A.B. Borges, C.R.G. Torres

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  1. Forced Eruption Without Orthodontic Brackets Using Fiber Reinforced Composite Prostheses: A Case Report.
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  3. 101

  1. Comparative Evaluation of Effect of Polymerizable and non-Polymerizable Desensitizing Agents on Crown-Retentive-Strength of Zinc-Phosphate, Glass-Ionomer and Compomer Cements
  2. 102
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  1. Prevalence of Temporomandibular Disorders’ Signs and Symptoms and Chewing Ability in Patients with Prosthodontic Prostheses
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  1. Effect of Surface Treatments on the Bond Strengths of Facing Composite Resins to Zirconia Copings
  2. 122
  3. 129

  1. Frechette Awards - Awards 2012
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  3. 130

  1. The Effect of Monomer/Polymer Mixing Ratio,Time Between Mixing and Packing of Heat Cured Acrylic Resin Denture Base Material and Bond Assisting Agents on the Bond Strength to Acrylic Resin Denture T eeth
  2. 131
  3. 134

  1. Influence of Nd:YAG or Er:YAG Laser Surface Treatment on Microtensile Bond Strength of Indirect Resin Composites to Resin Cement Lasers Surface Treatment of Indirect Resin Composites
  2. 135
  3. 140

  1. Provision of a Swing Lock Denture for a Patient with Gorlin Goltz Syndrome
  2. 141
  3. 144