Department of Periodontology, College of Dentistry - FOSJC, UNESP - State University of São Paulo, São José dos Campos, Brazil.
J Clin Periodontol. 2015 Jan;42(1):54-61. doi: 10.1111/jcpe.12328. Epub 2014 Dec 17.
To evaluate the treatment of gingival recession with a connective tissue graft (CTG) alone or in combination with low-level laser therapy (CTG + L).
Forty patients presenting 40 Miller Class I and II gingival recessions were included. The defects were randomly assigned to receive either CTG (n = 20) or CTG + L (n = 20). A diode laser (660 nm) was applied to the test sites immediately after surgery and every other day for 7 days (eight applications).
The mean percentage of root coverage was 91.9% for the test group and 89.48% for the control group after 6 months (p > 0.05). The test group presented more complete root coverage (n = 13, 65%) than the control group (n = 7, 35%) (p = 0.04). Dentine sensitivity decreased significantly after 6 months in both groups (p < 0.001). The two groups showed improvement in aesthetics at the end of treatment.
Low-level laser therapy may increase the percentage of complete root coverage when associated with CTG.
评估单独使用结缔组织移植物（CTG）或联合低水平激光治疗（CTG+L）治疗牙龈退缩的效果。
纳入 40 名患有 40 个 Miller Ⅰ类和Ⅱ类牙龈退缩的患者。将这些缺损随机分为接受 CTG（n=20）或 CTG+L（n=20）治疗。手术完成后，立即在试验部位应用二极管激光（660nm），之后每隔一天应用一次，共 7 天（8 次应用）。
6 个月后，试验组的根覆盖率平均为 91.9%，对照组为 89.48%（p>0.05）。试验组的完全根覆盖率（n=13，65%）高于对照组（n=7，35%）（p=0.04）。两组在治疗结束时的牙本质敏感性均显著降低（p<0.001）。
当与 CTG 联合使用时，低水平激光治疗可能会增加完全根覆盖率的百分比。
