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Home Is laser conditioning a valid alternative to conventional etching for aesthetic...

Is laser conditioning a valid alternative to conventional etching for aesthetic brackets?

Authors:

  • M. F. Sfondrini
    MD, DDS, PhD - Unit of Orthodontics and Paediatric Dentistry Section of Dentistry. Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
  • G. Calderoni
    DDS - Unit of Orthodontics and Paediatric Dentistry Section of Dentistry. Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
  • M. C. Vitale
    MD, DDS - Unit of Orthodontics and Paediatric Dentistry Section of Dentistry. Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
  • P. Gandini
    MD, DDS - Unit of Orthodontics and Paediatric Dentistry Section of Dentistry. Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
  • A. Scribante
    DDS, PhD, MHA - Unit of Orthodontics and Paediatric Dentistry Section of Dentistry. Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy

DOI:

https://doi.org/10.23804/ejpd.2018.19.01.11

ABSTRACT


Aim

ER:Yag lasers have been described as a more conservative alternative to conventional acid-etching enamel conditioning technique, when bonding conventional metallic orthodontic brackets. Since the use of aesthetic orthodontic brackets is
constantly increasing, the purpose of the present report has been to test laser conditioning with different aesthetic brackets.

Methods

Study Design: Five different aesthetic brackets (microfilled copolymer, glass fiber, sapphire, polyoxymethylene and sintered ceramic) were tested for shear bond strength and Adhesive Remnant Index scores using two different
enamel conditioning techniques (acid etching and ER:Yag laser application). Two hundred bovine incisors were extracted, cleaned and
embedded in resin. Specimens were then divided into 10 groups with random tables. Half of the specimens were conditioned with conventional orthophosphoric acid gel, the other half with ER:Yag laser. Different aesthetic brackets (microfilled copolymer, glass fiber,
sapphire, polyoxymethylene and sintered ceramic) were then bonded to the teeth. Subsequently all groups were tested in shear mode with a Universal Testing Machine. Shear bond strength values and adhesive remnant index scores were recorded. Statistical analysis
was performed.

Results

When considering conventional acid etching technique, sapphire, polyoxymethylene and sintered ceramic brackets exhibited the highest SBS values. Lowest values were reported for microfilled copolymer and glass fiber appliances. A
significant decrease in SBS values after laser conditioning was reported for sapphire, polyoxymethylene and sintered ceramic brackets, whereas no significant difference was reported for microfilled copolymer and glass fiber brackets. Significant differences in ARI scores were also reported. CONCLUSIONS: Laser etching can significantly reduce bonding efficacy of sapphire, polyoxymethylene and
sintered ceramic brackets.

PLUMX METRICS

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Publication date:

March /2018

Keywords:

aesthetics, bracket, etching, laser, orthodontics, shear bond strength

Issue:

Vol.19 – n.1/2018

Page:

61 – 66

Publisher:

Ariesdue

Cite:


Harvard: M. F. Sfondrini, G. Calderoni, M. C. Vitale, P. Gandini, A. Scribante (2018) "Is laser conditioning a valid alternative to conventional etching for aesthetic brackets?", European Journal of Paediatric Dentistry, 19(1), pp61-66. doi: 10.23804/ejpd.2018.19.01.11
Vancouver: M. F. Sfondrini, G. Calderoni, M. C. Vitale, P. Gandini, A. Scribante. Is laser conditioning a valid alternative to conventional etching for aesthetic brackets?. European Journal of Paediatric Dentistry [Internet]. 2018Mar.1 [cited 2023Feb.02];19(1):61-66. Available from: https://www.ejpd.eu/abstract-pubmed/is-laser-conditioning-a-valid-alternative-to-conventional-etching-for-aesthetic-brackets/
MLA: M. F. Sfondrini, G. Calderoni, M. C. Vitale, P. Gandini, A. Scribante Is laser conditioning a valid alternative to conventional etching for aesthetic brackets?. European Journal of Paediatric Dentistry. 2018;19(1):61-66

Copyright (c) 2021 Ariesdue

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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