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Year : 2022  |  Volume : 19  |  Issue : 1  |  Page : 107

Potency of hyaluronic acid from eggshell–membrane for open gingival embrasure reconstruction following orthodontic tooth movement (a histomorphological study)

Department of Orthodontics, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia

Correspondence Address:
Dr. Ananto Ali Alhasyimi
Department of Orthodontics, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta 55281
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1735-3327.363566

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Background: The aim of this research was to assess the effectiveness of eggshell–membrane (ESM)-containing hyaluronic acid (HA) in the treatment of open gingival embrasure (OGE) following orthodontic tooth movement (OTM). Materials and Methods: This study is an in vivo quasi experimental research. A total of 24 Cavia cobaya were equally divided into two groups, treatment (10% HA injection) and control (phosphate-buffered saline [PBS]). A separator was inserted between mandibular incisors to induce an OGE. A volume of 20 μl of either PBS (n = 12) or ESM extract (n = 12) was locally injected within the interdental papilla. Decapitation of animals was made on day 1, 4, and 7 postinjection. The staining was done using hemotoxylin and eosin to observe angiogenesis and Mallory to observe the collagen density. Fourier-transform infrared spectroscopy (FTIR) and thin-layer chromatography (TLC) analysis were performed to detect the amount of HA available in ESM. The results were then compared with independent t-tests and the Mann–Whitney test. The level of statistical significance was set at 0.05. Results: The FTIR and TLC analysis showed that HA was successfully identified in the ESM samples. Local injection of 10% HA induced an increase of angiogenesis compared to the control group on day 1 and 4 postinjection (P < 0.05). Significant differences (P < 0.05) were also noted in the collagen density and the growth of interdental papilla on day 4 and 7 postinjection. Conclusion: ESM has the potential effect of regenerating the interdental papilla construction after OTM by increasing the collagen fiber density and inducing angiogenesis.

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