UNASSIGNED:研究使用光学相干断层扫描(OCT)作为评估釉质中一般和局部低矿化缺陷的工具。
未经授权:十颗拔除的恒牙(四颗具有局部低矿化的牙齿,四颗牙齿一般低矿化,和两个健康对照)用于本研究。此外,4例接受OCT检查的参与者作为拔牙的生活对照.
UNASSIGNED:将OCT结果与临床照片进行比较,数字射线照片,和牙齿切片的偏振显微镜图像(被认为是黄金标准),以确定具有关于釉质干扰程度的最准确信息的方法:1)釉质干扰的可见性(可见是/否);如果是,2)牙釉质的干扰程度;和3)确定潜在牙本质的合理参与。
UNASSIGNED:OCT比数字X线摄影和视觉评估更准确。OCT可以提供有关牙釉质局部低矿化紊乱程度的信息,该信息与牙齿切片的偏振显微镜相当。
未经评估:在本试点研究的限制范围内,可以得出结论,OCT适用于调查和评估局部的低矿化障碍;然而,在牙釉质普遍低矿化的情况下,它不太有用。此外,OCT补充了牙釉质的射线照相检查;然而,需要更多的研究来阐明在低矿化的情况下OCT的使用范围.
UNASSIGNED: To investigate the use of optical coherence tomography (OCT) as a tool to assess general and localised hypomineralisation defects in the enamel.
UNASSIGNED: Ten extracted permanent teeth (four teeth with localised hypomineralisation, four teeth with general hypomineralisation, and two healthy controls) were used in this study. In addition, four participants who underwent OCT served as living controls for the extracted teeth.
UNASSIGNED: The OCT results were compared with clinical photographs, digital radiographs, and polarising microscopy images of tooth sections (considered the gold standard) to determine the method with the most accurate information regarding the extent of enamel disturbances: 1) visibility of enamel disturbance (visible yes/no); if yes, 2) extent of the disturbance in the enamel; and 3) determination of the plausible involvement of the underlying dentin.
UNASSIGNED: OCT was more accurate than digital radiography and visual assessment. OCT could provide information about the extent of localised hypomineralised disturbances in the enamel that was comparable to that with polarisation microscopy of the tooth sections.
UNASSIGNED: Within the limitations of this pilot study, it can be concluded that OCT is suitable for investigating and evaluating localised hypomineralisation disturbances; however, it is less useful in cases with generalised hypomineralisation of the enamel. In addition, OCT complements radiographic examination of enamel; however, more studies are necessary to elucidate the full extent of the use of OCT in case of hypomineralisation.