title: Assessment of occlusal fissure depth and sealant penetration using optical coherence tomography.
abstract: Swept source optical coherence tomography (SS-OCT) is an interferometric imaging technique. This study aimed to assess SS-OCT as a diagnostic tool for the evaluation of occlusal fissure depth and sealant penetration into fissure. Seventy investigation sites of occlusal fissures without visible evidence of caries were categorized into four groups (smooth, shallow, intermediate, and deep fissures). Categorization utilized two methods: 1) visually, using a computer screen, and 2) using SS-OCT images. After sealant placement, penetration was observed in SS-OCT. The results obtained from SS-OCT and visual inspections were compared with those of confocal laser scanning microscope (CLSM). The diagnostic power of SS-OCT was higher than that of visual inspection for fissure depth. Additionally, clear cross-sectional images of sealant penetration into fissures were observed with SS-OCT. SS-OCT can be used to evaluate fissure depth and monitor sealant penetration.
authors.affiliation: Department of Pediatric Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University.
authors.forename: Sachiko
authors.initials: S
authors.lastname: Ito
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Shimada
authors.forename: Alireza
authors.initials: A
authors.lastname: Sadr
authors.forename: Yukie
authors.initials: Y
authors.lastname: Nakajima
authors.forename: Michiyo
authors.initials: M
authors.lastname: Miyashin
authors.forename: Junji
authors.initials: J
authors.lastname: Tagami
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Sumi
mesh_terms: D003731:Dental Caries / Q000175:diagnosis*; D003743:Dental Enamel; D006801:Humans; D018613:Microscopy, Confocal; D041623:Tomography, Optical Coherence