Kang Si-Mook, Jeong Seung-Hwa, Kim Hee-Eun, Kim Baek-Il
Oral Health Prev Dent. 2017;15(5):483-488. doi: 10.3290/j.ohpd.a38774.
To confirm that the quantitative light-induced fluorescence-digital (QLF-D) system is an adequate tool for monitoring changes in the mineral contents of white spot lesions.
Twenty-three anterior teeth from five orthodontic patients were selected for the samples. Initial fluorescent images were taken with the QLF-D system immediately after removing the fixed orthodontic appliances, and the white spot lesions were visualised in the fluorescent images that were selected. Subsequently, a fluoride varnish containing 0.1% fluoride was applied to all white spot lesions, and the final QLF-D images were taken two weeks after fluoride treatment. Finally, the following four parameters were compared between the images taken at baseline and two weeks after the treatment with paired t-tests: the mean fluorescence loss (∆F), maximum fluorescence loss (∆Fmax), lesion area (area), and lesion volume (∆Q).
All the parameters obtained by QLF-D after two weeks had improved significantly when compared with baseline (p < 0.01). The recovery rates of the ∆F, ∆Fmax, area, and ∆Q were 11.4%, 17.1%, -37.5%, and 42.1%, respectively. Shallow lesions (∆Fi ≥ -15%) were better remineralized than deep lesions (∆Fi < -15%). The ratios of the ∆F, ∆Fmax, area, and ∆Q parameters between the shallow and deep lesions were 2.86, 3.30, 2.20, and 1.88, respectively.
The QLF-D system is a sensitive tool for the assessment of small levels of mineral changes in carious lesions after the removal of orthodontic appliances.
证实定量光诱导荧光数字(QLF-D)系统是监测白斑病变矿物质含量变化的合适工具。
从五名正畸患者的23颗前牙中选取样本。在拆除固定正畸矫治器后立即使用QLF-D系统拍摄初始荧光图像,并在所选的荧光图像中观察白斑病变。随后,对所有白斑病变涂抹含0.1%氟化物的氟化漆,并在氟化处理两周后拍摄最终的QLF-D图像。最后,使用配对t检验比较基线时和治疗两周后拍摄的图像之间的以下四个参数:平均荧光损失(∆F)、最大荧光损失(∆Fmax)、病变面积(面积)和病变体积(∆Q)。
与基线相比,QLF-D在两周后获得的所有参数均有显著改善(p < 0.01)。∆F、∆Fmax、面积和∆Q的恢复率分别为11.4%、17.1%、-37.5%和42.1%。浅病变(∆Fi≥-15%)比深病变(∆Fi < -15%)的再矿化效果更好。浅病变和深病变之间的∆F、∆Fmax、面积和∆Q参数之比分别为2.86、3.30、2.20和1.88。
QLF-D系统是评估正畸矫治器拆除后龋损中小程度矿物质变化的敏感工具。