Non-invasive optical coherence tomography data-based quantitative algorithm for the assessment of residual adhesive on bracket-removed dental surface

Yoonseok Kim, Gu In Jung, Deokmin Jeon, Ruchire Eranga Wijesinghe, Daewoon Seong, Jaeyul Lee, Woo Jong Do, Sung Min Kwon, Jong Hoon Lee, Jun Ho Hwang, Hyun Deok Kim, Kyu Bok Lee, Mansik Jeon, Jeehyun Kim

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The aim of this study was to quantitatively assess the residual adhesive on orthodontic ceramic bracket-removed dental surface. In orthodontic process, ceramic bracket was repeated debonding physically, then the adhesive remained on the dental surface. The residual adhesive caused a lack of adhesive strength between dental and ceramic bracket. Since commonly used adhesive in orthodontics is translucent, residual adhesive is hard to be detected with conventional microscopes. Therefore, 1310 nm center wavelength swept-source OCT system based on laboratory customized image processing algorithm was used for the precise detection of residual adhesive on tooth surface. The algorithm separates residual adhesive from dental surface by comparing the height of adjacent B-scan images, while providing color-scaled images emphasizing the thickness information of residual adhesive. Finally, the acquired results were compared with microscopic and adhesive remnant index scoring gold standards, while the comparison confirmed the potential merits and the improvements of the proposed method over gold standards.

Original languageEnglish
Article number4670
JournalSensors
Volume21
Issue number14
DOIs
StatePublished - 2 Jul 2021

Keywords

  • Bracket removal inspection
  • Dental adhesive
  • Dental optical coherence tomography
  • Orthodontic imaging
  • Residual adhesive

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