Safwat Osama, Elkateb Mona, Dowidar Karin, El Meligy Omar
J Clin Pediatr Dent. 2017;41(6):429-441. doi: 10.17796/1053-4628-41.6.3. Epub 2017 Sep 22.
To evaluate the clinical changes in dentin of deep carious lesions in young permanent molars, following ozone application with and without the use of a remineralizing solution, using the stepwise excavation.
The sample included 162 first permanent immature molars, showing deep occlusal carious cavities that were indicated for indirect pulp capping. Teeth were divided into 2 main groups according to the method of ozone treatment. Each group was further subdivided equally into test and control subgroups. Following caries excavation, color, consistency and DIAGNOdent assessments of dentin were evaluated after 6 and 12 months.
Regarding dentin color and consistency, no significant differences were observed following ozone application, with and without a remineralizing solution. There were no significant differences between ozone treatment, and calcium hydroxide during the different evaluation periods, except in group I cases after 6 months, concerning the dentin color. The DIAGNOdent values were significantly reduced following ozone application, with or without a remineralizing solution, as well as between test and control cases in group I after 6 months.
Ozone application through the stepwise excavation had no significant effect on dentin color and consistency in young permanent molars. DIAGNOdent was unreliable in monitoring caries activity.
采用逐步去龋法，评估在有或没有使用再矿化溶液的情况下，对年轻恒牙深龋病变牙本质进行臭氧处理后的临床变化。
样本包括162颗第一恒未成熟磨牙，这些牙齿显示有深的咬合面龋洞，适合进行间接盖髓术。根据臭氧处理方法将牙齿分为2个主要组。每组再平均分为测试和对照亚组。在龋洞去除后，于6个月和12个月时评估牙本质的颜色、质地和激光荧光龋活性诊断仪（DIAGNOdent）评估结果。
关于牙本质颜色和质地，在使用或未使用再矿化溶液进行臭氧处理后，未观察到显著差异。在不同评估期，臭氧处理与氢氧化钙处理之间无显著差异，但在6个月时I组病例的牙本质颜色方面除外。在使用或未使用再矿化溶液进行臭氧处理后，以及在6个月时I组的测试和对照病例之间，DIAGNOdent值均显著降低。
通过逐步去龋法应用臭氧对年轻恒牙的牙本质颜色和质地没有显著影响。DIAGNOdent在监测龋病活动方面不可靠。
