Local delivery of hyaluronan 0.8% as an adjunct to scaling and root planing in the treatment of chronic periodontitis: A clinical and microbiological study

Tejaswin Polepalle, Moogala Srinivas, Narasimha Swamy, Sudheer Aluru, Swarna Chakrapani, Bollepalli Appaiah Chowdary, Tejaswin Polepalle, Moogala Srinivas, Narasimha Swamy, Sudheer Aluru, Swarna Chakrapani, Bollepalli Appaiah Chowdary

Abstract

Background: The purpose of this study was to assess the clinical and microbiological effects of the local and sub-gingival application of a hyaluronan gel on scaling and root planing (SRP) in the treatment of moderate generalized chronic periodontitis.

Materials and methods: In this split mouth study, 72 teeth in 18 patients with generalized chronic periodontitis with moderate severity were chosen for the study. Plaque samples were obtained by paper points at required intervals. Contra-lateral pairs of premolars and canine teeth in the maxilla or the mandible were selected to receive test treatment or serve as controls. Experimental jaw quadrants received sub-gingival administration of 0.2-ml 0.8% hyaluronan gel into selected sites following SRP and 1-week later. Clinical parameters were assessed at baseline, 1(st), 4(th), and 12(th) week. Colony-forming units (CFU) per milliliter were assessed at baseline, after SRP and after 2 weeks of drug insertion Student t-test and repeated measure ANOVA (RMANOVA) were used in this study. RMANOVA was used to find the significance in bleeding on probing (BOP) and plaque index (PI) and t-test for probing pocket depth (PPD) and clinical attachment level (CAL).

Results: The results revealed that there was a significant reduction in BOP (P < 0.001) PI (P < 0.001), PPD (P < 0.001) and CAL (P < 0.001) were also observed in experimental jaw quadrant following SRP and insertion of 0.8% hyaluronan when compared with the control group. A statistically significant reduction of CFUs was also found (P < 0.001) in the experimental site when compared with the control site.

Conclusion: Sub-gingival placement of 0.2-ml of 0.8% hyaluronan along with SRP resulted in a significant improvement in both clinical and microbiological parameters when compared with the control site.

Keywords: Hyaluronan gel; scaling and root planing; sub-gingival application.

Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
0.8% hyaluronan gel (gengigel) pack containing prefilled syringes and flexible tips
Figure 2
Figure 2
Probing depth of 6-mm at base line
Figure 3
Figure 3
Insertion of 0.8% hyaluronan gel after scaling and root planing
Figure 4
Figure 4
Reduction in probing pocket depth to 1-mm after 3 months
Graph 1
Graph 1
Changes in mean bleeding index
Graph 2
Graph 2
Changes in mean plaque index
Graph 3
Graph 3
Changes in mean probing pocket depth
Graph 4
Graph 4
Changes in mean clinical attachment level
Graph 5
Graph 5
Changes in the colony-forming units
Figure 5
Figure 5
Colony-forming units in test site after 2 weeks of drug insertion
Figure 6
Figure 6
Colony-forming units in control site after 4 weeks of scaling and root planing

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