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Study on the effect of low level laser in the treatment of periodontal disease / 国际生物医学工程杂志
International Journal of Biomedical Engineering ; (6): 257-260, 2013.
Article in Chinese | WPRIM | ID: wpr-441795
ABSTRACT
Objective The purpose of this study was to explore the efficacy of low level laser treatment (LLLT) combined with initial periodontal therapy in treating chronic periodontits.Methods Eighteen patients with chronic periodontitis were randomly treated in a spit-mouth design with combination of laser (808 nm,80 mW) treatment with scaling and root planing (experimental) or with scaling and root planing alone (contol) after OHI and supragingival cleaning.Clinical parameters of sulcus bleeding index (SBI),periodontal probing depth (PD) and clinical attachment loss (CAL) of both sides were recorded and gingival crevicular fluid samples were collected at baseline and 1,4,12 weeks after the treatment.GCF samples were analyzed for b-FGF,IL-1β,IL-8 level using ELISA assay.Results For the change of SBI and PD,only SBI in the experimental group experienced significant reduction (P<0.05) at 1 week compared with baseline (P<0.05),and the reduction in both groups were statistically significant (P<0.05) at 4 weeks.The same situation occurred while both experimental groups made more significant difference (P<0.01) at 12 weeks.The reduction of SBI was obvious in both groups when the PD was more than 6 mm.For CAL,the experimental group showed signs of improvement (P<0.05) at 4 weeks; both groups indicated improvement (P<0.05),while the experimental was more significant (P<0.01) at 12 weeks.For the levels of b-FGF,it showed steady rise after treatment in experimental group,while it went up to the baseline after falling in control group.At 12 weeks,there were statistical significance of differences between two groups (P<0.05).The changes of IL-1β and IL-8,in the experimental group showed better results than that in control group,while the difference between two groups was not significant (P>0.05).Conclusion LLLI can accelerate the healing of periodontal tissue by reducing the SBI,decreasing the PD,improving the CAL and increasing levels of b-FGF in the GCF of the patients.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: International Journal of Biomedical Engineering Year: 2013 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: International Journal of Biomedical Engineering Year: 2013 Type: Article