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Contemp Clin Dent. 2015 Apr-Jun;6(2):206-10. doi: 10.4103/0976-237X.156047.

Evaluation of glutathione level in gingival crevicular fluid in periodontal health, in chronic periodontitis and after nonsurgical periodontal therapy: A clinicobiochemical study.

Author information

1
Department of Periodontics, Dayananda Sagar College of Dental Sciences, Bengaluru, Karnataka, India.
2
Royal Multi Speciality Dental Clinic, Kannur, Kerala, India.
3
Clove Dental, Saini Enclave, New Delhi, India.

Abstract

CONTEXT:

Periodontitis is predominantly due to exaggerated host response to pathogenic microorganisms and their products which causes an imbalance between the reactive oxygen species-antioxidant in gingival crevicular fluid (GCF). Glutathione is an important redox regulator in GCF and maintenance of stable reduced glutathione (GSH):oxidized glutathione (GSSG) ratio is essential for periodontal health.

AIMS:

The present study was undertaken to evaluate and compare the level of glutathione and redox balance (GSH: GSSG ratio) in GCF of chronic periodontitis patients, periodontally healthy controls and also to evaluate the effect of nonsurgical periodontal therapy on the level of glutathione and redox balance during 3 months postoperative visit.

STUDY DESIGN:

Baseline GCF samples were collected from 20 chronic periodontitis patients and 20 periodontally healthy subjects for GSH and GSSG levels estimation. Periodontitis patients were recalled 3 months postnonsurgical periodontal therapy to re-sample GCF.

MATERIALS AND METHODS:

GSH and GSSG levels were measured by high-performance liquid chromatography. The values were statistically analyzed by Paired t-test.

RESULTS:

The mean GSH and GSSG values in GCF were found to be significantly lower in periodontitis patients pre- and 3 months post-nonsurgical periodontal therapy, compared with those in the control group subjects. In addition, the successful nonsurgical therapy even though leading to a significant improvement in the GSH and GSSG levels, does not restore glutathione concentration to the levels seen in healthy subjects.

CONCLUSION:

Successful nonsurgical periodontal therapy leads to significant improvement in the redox balance (GSH: GSSG ratio) in chronic periodontitis patients.

KEYWORDS:

Chronic periodontitis; gingival crevicular fluid; glutathione

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