Vol. 11, Issue 4, Part C (2025)

Introduction: Interdental papillary deficiency, commonly referred to as “black triangles,” is a major aesthetic and functional concern for both patients and clinicians. The absence of interdental papilla can lead to cosmetic deformities and chronic food impaction. Numerous surgical and non-surgical techniques have been proposed for the reconstruction of lost papillae. Although autogenous subepithelial connective tissue grafting remains the gold standard, it involves surgical morbidity and patient discomfort. Hence, minimally invasive approaches using bioactive agents such as hyaluronic acid (HA) have emerged as effective alternatives. HA is a naturally occurring glycosaminoglycan that plays an important role in tissue repair, cell proliferation, and wound healing. Its hygroscopic and viscoelastic properties make it suitable for volumizing deficient interdental papillae. Aim and Objective: To evaluate the efficacy of injectable hyaluronic acid for the reconstruction of interdental papilla. Materials and Methods: Patients presenting with Nordland and Tarnow (1998) Class I and II papillary recession were selected. A volume of 0.2 ml of HA filler (20 mg/ml) was injected 2-3 mm apical to the coronal tip of the papilla. Clinical parameters, including the distance from the contact point to the gingival margin (CP-GM) and interproximal width (IPW), were assessed at baseline, 3 weeks, and 5 weeks. The data were statistically analyzed using analysis of variance (ANOVA). Results: Injectable HA showed promising outcomes in papillary reconstruction within 5 weeks. Both CP-GM and IPW exhibited statistically significant reductions from baseline to 5 weeks. Conclusion: Injectable hyaluronic acid represents a safe, predictable, and minimally invasive approach for the reconstruction of interdental papillae. It provides significant esthetic enhancement, promotes tissue regeneration, and ensures greater patient comfort, thereby serving as an effective nonsurgical alternative to conventional surgical procedures