ArticleJournal of oral biology and craniofacial research
Comparative evaluation of Hyaluronic acid and injectable platelet-rich fibrin as a non-surgical approach for management of black triangle.
Article in Journal of oral biology and craniofacial research. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
- Injectable platelet-rich fibrin based interventions for treatment of gingival black triangles: systematic review of clinical evidence.Journal of the Korean Association of Oral and Maxillofacial Surgeons · 2026Review
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aims: To compare and evaluate the clinical efficacy of Hyaluronic Acid and Injectable Platelet Rich Fibrin (i-PRF) in the management of gingival black triangles using clinical and photographic analysis over 6 months. Material and method: Thirty patients (15 in each group) were evaluated in this comparative study. Patients were divided into two groups: Group(HA) and Group(i-PRF). Injections were administered at baseline, 3 weeks, and 6 weeks. Black triangle height and area were measured at baseline, 1 month, 3 months, and 6 months using a UNC-15 probe and ImageJ software. Data were analyzed using repeated measures ANOVA and Tukey's post hoc test. Results: Both the HA and i-PRF groups showed significant reductions in black triangle height and area over a 6-month period. HA reduced height by 0.80 mm at 1 month (p = 0.067), 1.47 mm at 3 months (p < 0.001), and 2.00 mm at 6 months (p < 0.001), while i-PRF reduced height by 1.20 mm (p = 0.003), 1.80 mm (p < 0.001), and 2.27 mm (p < 0.001) at the same intervals. Area reductions followed similar patterns. No significant intergroup differences were observed. Conclusion: HA and i-PRF are effective, minimally invasive, and biocompatible treatments for managing black triangles. HA offers ease of use and patient comfort, while i-PRF is biologically driven and cost-effective. Material selection should be based on clinical conditions and patient preferences.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.