A pilot study to assess the morphology and progression of non-carious cervical lesions

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• 作者：Iori Sugita^a ; Syozi Nakashima^a ; Asaomi Ikeda^b ; Michael F. Burrow^c ; Toru Nikaido^a ; Shisei Kubo^d ; ^{kubo@nagasaki-u.ac.jp} ; Junji Tagami^a ; Yasunori Sumi^e
• 关键词：Non-carious cervical lesion ; Morphology ; Progression ; Longitudinal study ; Swept-source optical coherence tomography
• 刊名：Journal of Dentistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：57
• 期：Complete
• 页码：51-56
• 全文大小：1267 K
• 卷排序：57

文摘

This longitudinal pilot study aimed to morphologically and quantitatively investigate the progress of non-carious cervical lesions (NCCLs) by using swept-source optical coherence tomography (SS-OCT).MethodsThe samples examined comprised sets of NCCL epoxy resin replicas obtained from 10 lesions in 6 patients who attended annual dental visits over 4 or 5 years. SS-OCT images of the replicas were analyzed in terms of the maximum depth (Dmax) and corresponding vertical width (VW) – using an image analyzer to estimate progression of the NCCLs over time.ResultsIt was found that differences between wedge- and saucer-shaped lesions were morphologically distinguished well by the OCT images. There were significant differences in dimensions among Dmax, VW and horizontal width (HW). HW was the largest and Dmax was the smallest. Although no significant differences in absolute values of annual progression rates were found among Dmax, VW and HW, the percentage increase in Dmax was significantly greater compared to VW and HW. The ratios of Dmax to corresponding VW ranged from 0.49 to 1.01 for the wedge-shaped lesions and from 0.13 to 0.44 for saucer-shaped lesions, respectively.ConclusionsThe dimensional analysis demonstrated notable progression with large variations. The wedge-shaped lesions appeared to show greater Dmax values compared to the saucer-shaped lesions.Clinical significanceWith respect to the depth, the wedge-shaped lesions may progress at a greater rate compared to the saucer-shaped lesions.