The Journal of the Korean dental association (대한치과의사협회지)

The Korean Dental Association (대한치과의사협회)
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Evaluation of sealant microleakage using Swept-Source Optical Coherence Tomography

치면열구전색치아의 미세누출 평가를 위한 Swept-Source Optical Coherence Tomography의 타당도 평가

  • Nam, Sang-Mi (Department of dental hygiene, SahmYook Health University) ;
  • Ku, Hye-Min (Department of Preventive Dentistry and Public Oral Health, Yonsei University College of Dentistry) ;
  • Lee, Eun-Song (Department of Preventive Dentistry and Public Oral Health, Yonsei University College of Dentistry) ;
  • Kim, Baek-Il (Department of Preventive Dentistry and Public Oral Health, Yonsei University College of Dentistry)
  • 남상미 (삼육보건대학교 치위생과) ;
  • 구혜민 (연세대학교 치과대학 예방치과학교실) ;
  • 이은송 (연세대학교 치과대학 예방치과학교실) ;
  • 김백일 (연세대학교 치과대학 예방치과학교실)
  • Received : 2018.07.06
  • Accepted : 2018.08.02
  • Published : 2018.11.30
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Abstract

Purpose: The aim of this study was to evaluate the validity of swept-source optical coherence tomography (SS-OCT) for detecting sealant microleakage. Materials and Methods: A total of 31 extracted sound human molar, assigned as suitable for sealant application, were chosen and divided into two groups: (1) no microleakage group and (2) microleakage group by applying sealant using the different methods. All specimens were immersed in 1% methylene blue for 24 h and sectioned to confirm the absence or presence of sealant microleakage as a gold standard method. Subsequently, all the sectioned specimens were digitally photographed using a microscope with a magnification of ${\times}50$. Presence of microleakage was evaluated on a 2-point rating scale. The association of histological method with conventional methods (visual and tactile assessment) and SS-OCT was assessed using a chi-squared test. The intra- and inter-examiner reliability was calculated using Cohen's Kappa. Results: The SS-OCT showed a sensitivity of 0.73 and a specificity of 1.00, while visual and tactile assessment showed a sensitivity of 0.67 and a specificity of 0.86. The inter-examiner reliability of SS-OCT was 0.79, whereas that of the visual and tactile assessment was 0.53. Conclusions: SS-OCT can be used to non-invasively detect sealant microleakage and to monitor pit and fissure sealant in the clinics.

Keywords

Acknowledgement

Supported by : 삼육보건대학교

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