Berisha N, Veseli E, Sahiti F, Morina L
1Department of Orthodontics, Dental School, Faculty of Medicine, University of Prishtina, Kosovo.
2Department of Prosthodontics, Dental School, Faculty of Medicine, University of Prishtina, Kosovo.
Georgian Med News. 2025 May(362):186-193.
This study aimed to evaluate the effects of photodynamic laser therapy (PDT) on the condition of gingiva and dental plaque in patients with fixed orthodontic appliances (FOA) at various time intervals during orthodontic treatment.
This research is a randomized controlled trial involving 60 patients with fixed orthodontic appliances, divided into two groups of 30 each. The first group served as the control, while the second group received the photodynamic treatment. Assessments of gingival and plaque conditions were conducted at two different time intervals. On the first day (T1), the gingival condition and dental plaque levels were evaluated using the gingival index (GI) and the dental plaque index (DPI) based on the Löe-Sillness and Sillness-Löe indexes. The test group was administered PDT with methylene blue, while the control group did not receive laser activation. On the 30th day (T2), gingival and plaque conditions were re-evaluated using the GI and DPI. Results were analyzed with SPSS, using independent samples t-tests and repeated measures ANOVA.
In T1, the gingival condition according to GI in the test group was 50% mild inflammation, 36.7% normal, and 13.3% moderate inflammation. In T2, it shifted to 50% normal, 43.3% mild, and 6.7% moderate inflammation. Dental plaque at T1 according to DPI: 40% had film on the gingival margin, 36.7% moderate deposits in pocket, 16.7% no plaque, and 6.7% abundant soft matter. At T2: 56.7% film on margin, 30% no plaque, 13.3% moderate deposits in pocket. ANOVA revealed significant differences in GI and DPI (p<0.05).
PDT with methylene blue demonstrates a statistically significant improvement in gingival health and reduction in dental plaque accumulation in patients undergoing FOA. This suggests that PDT could be a valuable adjunct to traditional oral hygiene practices for managing gingivitis and plaque-related issues in orthodontic patients.
本研究旨在评估光动力激光疗法（PDT）在正畸治疗的不同时间间隔对固定正畸矫治器（FOA）患者牙龈状况和牙菌斑的影响。
本研究为一项随机对照试验，涉及60例佩戴固定正畸矫治器的患者，分为两组，每组30例。第一组作为对照组，第二组接受光动力治疗。在两个不同的时间间隔对牙龈和菌斑状况进行评估。第一天（T1），根据Löe - Sillness和Sillness - Löe指数，使用牙龈指数（GI）和牙菌斑指数（DPI）评估牙龈状况和牙菌斑水平。试验组用亚甲蓝进行PDT治疗，而对照组未接受激光激活。在第30天（T2），再次使用GI和DPI重新评估牙龈和菌斑状况。结果用SPSS进行分析，采用独立样本t检验和重复测量方差分析。
在T1时，试验组根据GI的牙龈状况为50%轻度炎症、36.7%正常、13.3%中度炎症。在T2时，转变为50%正常、43.3%轻度、6.7%中度炎症。根据DPI，T1时牙菌斑情况为：40%牙龈边缘有薄膜，36.7%袋内中度沉积，16.7%无菌斑，6.7%有大量软物质。在T2时：56.7%边缘有薄膜，30%无菌斑，13.3%袋内中度沉积。方差分析显示GI和DPI有显著差异（p<0.05）。
亚甲蓝光动力疗法在接受FOA治疗的患者中，在牙龈健康改善和牙菌斑积聚减少方面显示出统计学上的显著效果。这表明光动力疗法可能是传统口腔卫生措施的一种有价值的辅助手段，用于管理正畸患者的牙龈炎和与菌斑相关的问题。
