Journal Paper

Paper Information

Journal:
Year:0 | Volume: | Issue:
Start Page: | End Page:

video

sound

Persian Version

View:

15,083

Download:

5,645

Cites:

Information Journal Paper

Title

IN VITRO EVALUATION OF MICROLEAKAGE AROUND ORTHODONTIC BRACKETS USING LASER ETCHING AND ACID ETCHING METHODS

Pages

 Start Page 263 | End Page 269

Abstract

 Objective: path of microleakage between the ENAMEL and adhesive potentially al-lows microbial ingress that may consequently cause ENAMEL decalcification. The aim of this study was to compare microleakage of brackets bonded either by laser or acid ETCHING techniques.Material and Methods: The specimens were 33 extracted premolars that were divided into three groups as the acid ETCHING group (group 1), laser ETCHING with Er: YAG at 100 mJ and 15 Hz for 15s (group 2), and laser ETCHING with Er: YAG at 140 mJ and 15 Hz for 15s (group 3). After photo polymerization, the teeth were subjected to 500 thermal cycles. Then the specimens were sealed with nail varnish, stained with 2% methylen blue for 24hs, sectioned, and examined under a stereomicroscope. They were scored for marginal microleakage that occurred be-tween the adhesive-ENAMEL and bracket-adhesive interfaces from the occlusal and gingival margins. Data were analyzed with the Kruskal- Wallis test.Results: For the adhesive-ENAMEL and bracket-adhesive surfaces, significant differences were not observed between the three groups.Conclusion: According to this study, the Er: YAG laser with 1.5 and 2.1 watt set-tings may be used as an adjunctive for preparing the surface for orthodontic bracket bonding.

Cites

  • No record.
  • References

  • No record.
  • Related Journal Papers

  • No record.
  • Related Seminar Papers

  • No record.
  • Related Plans

  • No record.
  • Recommended Workshops