Effects of Diode Laser on Periodontal Initial Treatment of Class Ⅱ Furcation Involvement with Enamel Projection

doi:10.13701/j.cnki.kqyxyj.2024.02.006

Abstract

Abstract: Objective: To study the clinical effect of deglazing combined with diode laser on the treatment of class Ⅱ root furcation involvement. Methods: Forty-eight teeth with grade Ⅱ enamel projections which had root furcation involvement were randomly divided into SRP group, deglazing combined SRP group (D+SRP group), and deglazing combined SRP and diode laser group (D+SRP+L group). The periodontal probing depth (PD), gingival bleeding index (BI), gingival recession (GR), and clinical attachment loss (CAL) in three groups at baseline and four weeks and three months after treatment were compared. At the same time, thirty-six isolated teeth with grade Ⅱ cervical enamel projections were collected and randomly divided into three groups, which were given the same treatment mentioned above. Root slices were prepared. The surface morphology and surface roughness (Ra) were observed under atomic force microscope. Immunofluorescent cells scratch was used to observe the migration of periodontal membrane fibroblasts (hPDLFs). Dental colony morphology was observed by porphyromonas gingivalis culture. Results: Four weeks and three months after treatment, the most significant improvement was found in the D+SRP+L group, followed by D+SRP group and the worst was in the SRP group (P<0.01). Atomic force microscope showed that the largest Ra value was found in D+SRP+L group, followed by the D+SRP group, and the smallest in SRP group (P<0.01). Cell migration ratio of hPDLFs showed the highest migration ability was in the D+SRP+L group, followed by D+SRP group, and the lowest was in the SRP group. The difference between groups was statistically significant (P<0.01). For VPM (peak material volume) value under AFM, there was significant difference between D+SRP+L group and SRP group. But there was no significant difference between D+SRP group and SRP group. There was no significant difference in the germ layer thickness among three groups (P>0.05). Conclusion: Deglazing combined with diode laser can improve the effect of initial treatment of root furcation involvement.

Key words: enamel projection, diode laser, chronic periodontitis, periodontal initial therapy

GUO Xiaobin, WEN Chang, LI Sihong, WANG Shuining, YANG Dong. Effects of Diode Laser on Periodontal Initial Treatment of Class Ⅱ Furcation Involvement with Enamel Projection[J]. Journal of Oral Science Research, 2024, 40(2): 125-129.

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