Optical evaluation of enamel white spot lesions around orthodontic brackets using swept-source optical coherence tomography (Ss-oct): An in vitro study

Pavethynath Velusamy, Yasushi Shimada, Zuisei Kanno, Takashi Ono, Junji Tagami

Research output: Contribution to journalArticle

Abstract

The aim of this study was to evaluate in vitro detection of enamel white spot lesions around orthodontic brackets using swept-source optical coherence tomography (SS-OCT). Twenty-four clear orthodontic brackets were bonded onto the enamel surface of bovine incisor specimens using three types of orthodontic resin adhesives: non-fluoridated, fluoridated, and fluoridated light cured. The specimens were subjected to artificial demineralization. SS-OCT images were captured before demineralization and at 24 h and 1 week after demineralization. Lesion depth (LD) was measured and analyzed using Image J software. Results revealed significant increases in LD with time in all three groups. LDs were, however, significantly smaller in the fluoridated adhesive groups than in the non-fluoridated group. In addition, SS-OCT was validated for the detection of micro-leakage and white spot lesions beneath and around the orthodontic brackets.

Original languageEnglish
Pages (from-to)22-27
Number of pages6
JournalDental materials journal
Volume38
Issue number1
DOIs
Publication statusPublished - Jan 1 2019

Keywords

  • Enamel demineralization
  • Optical coherence tomography
  • Orthodontic adhesives
  • Orthodontic brackets
  • White spot lesion

ASJC Scopus subject areas

  • Ceramics and Composites
  • Dentistry(all)

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