Influence of Hyaluronic Acid in the Healing of Palatal Donor Sites During Free Gingival Graft Procedures
Summary
The goal of this study is to evaluate the use of a gel containing cross-linked hyaluronic acid (xHyA) at the palatal donor site following soft tissue harvesting procedures. The main questions it aims to answer are: 1) Does the use of xHyA improve post-operative patient morbidity?; 2) Does the use of xHyA improve palatal donor site healing? Researchers will compare xHyA topically applied at the palatal donor site to a negative control to see if xHyA works to minimize participants' morbidity and improve clinical healing. Participants will be equally distributed into two groups, half of them receiving xHyA. Participants will fill a visual analogue scale for subjective analyses during the first 2 post-operative weeks and will visit the dental clinic at 3, 7, 14 and 60 post-operative days for checkups and clinical examinations.
Timeline
- Start
- 2022-09-05
- Primary completion
- 2025-07-24
- Completion
- 2025-10-02
Publications
- Background Ceylan Sen S, Sarac Atagun O, Ustaoglu G, Ozcan E. Comparative evaluation of hyaluronic acid and injectable platelet-rich fibrin in palatal wound healing: a randomized clinical trial. BMC Oral Health. 2025 Oct 29;25(1):1693. doi: 10.1186/s12903-025-07183-9.
- Background Cankaya ZT, Gurbuz S, Bakirarar B, Kurtis B. Evaluation of the Effect of Hyaluronic Acid Application on the Vascularization of Free Gingival Graft for Both Donor and Recipient Sites with Laser Doppler Flowmetry: A Randomized, Examiner-Blinded, Controlled Clinical Trial. Int J Periodontics Restorative Dent. 2020 Mar/Apr;40(2):233-243. doi: 10.11607/prd.4494.
- Background Khalil S, Habashneh RA, Alomari S, Alzoubi M. Local application of hyaluronic acid in conjunction with free gingival graft: a randomized clinical trial. Clin Oral Investig. 2022 Feb;26(2):2165-2174. doi: 10.1007/s00784-021-04197-9. Epub 2021 Oct 8.
- Background Alpan AL, Cin GT. Comparison of hyaluronic acid, hypochlorous acid, and flurbiprofen on postoperative morbidity in palatal donor area: a randomized controlled clinical trial. Clin Oral Investig. 2023 Jun;27(6):2735-2746. doi: 10.1007/s00784-022-04848-5. Epub 2023 Jan 3.
- Background Yildirim S, Ozener HO, Dogan B, Kuru B. Effect of topically applied hyaluronic acid on pain and palatal epithelial wound healing: An examiner-masked, randomized, controlled clinical trial. J Periodontol. 2018 Jan;89(1):36-45. doi: 10.1902/jop.2017.170105.
- Background Joshi VM, Kandaswamy E, Germain JS, Schiavo JH, Fm HS. Effect of hyaluronic acid on palatal wound healing: A systematic review. Clin Oral Investig. 2024 Oct 3;28(10):565. doi: 10.1007/s00784-024-05955-1.
- Background Asparuhova MB, Kiryak D, Eliezer M, Mihov D, Sculean A. Activity of two hyaluronan preparations on primary human oral fibroblasts. J Periodontal Res. 2019 Feb;54(1):33-45. doi: 10.1111/jre.12602. Epub 2018 Sep 27.
- Background Pilloni A, Shirakata Y, Marini L, Bozic D, Miron RJ, Rotundo R, Stavropoulos A, Sculean A. Hyaluronic acid: A novel approach in regenerative/reconstructive periodontal therapy? Periodontol 2000. 2025 Aug 18. doi: 10.1111/prd.12644. Online ahead of print.
- Background Valachova K, Hassan ME, Soltes L. Hyaluronan: Sources, Structure, Features and Applications. Molecules. 2024 Feb 5;29(3):739. doi: 10.3390/molecules29030739.
- Background Aya KL, Stern R. Hyaluronan in wound healing: rediscovering a major player. Wound Repair Regen. 2014 Sep-Oct;22(5):579-93. doi: 10.1111/wrr.12214.
- Background Li CS, Lee WC, Fu MW, Ying-Shan Su S, Tzeng IS, Fu E. Bioactive materials for post-operative healing and pain relief following palatal epithelialized graft harvesting: A meta-analysis of randomized clinical trials. J Dent Sci. 2025 Apr;20(2):953-961. doi: 10.1016/j.jds.2024.11.013. Epub 2024 Nov 28.
- Background Leite GG, Viana KSS, Cota LOM, Abreu LG, Esteves Lima RP, Costa FO. Efficacy of different interventions on the morbidity of the palatal donor area after free gingival graft and connective tissue graft: A systematic review. Jpn Dent Sci Rev. 2025 Dec;61:31-40. doi: 10.1016/j.jdsr.2025.03.001. Epub 2025 Mar 12.
- Background de Almeida MCL, Rocha RGG, Magno MB, Lima RR, Saito MT. Performance of multiple therapeutic approaches for palatal wound healing after soft tissue graft removal - an overview of systematic reviews. Clin Oral Investig. 2024 May 31;28(6):347. doi: 10.1007/s00784-024-05733-z.
- Background Burkhardt R, Hammerle CH, Lang NP; Research Group on Oral Soft Tissue Biology & Wound Healing. Self-reported pain perception of patients after mucosal graft harvesting in the palatal area. J Clin Periodontol. 2015 Mar;42(3):281-7. doi: 10.1111/jcpe.12357. Epub 2015 Feb 16.
- Background Tavelli L, Barootchi S, Stefanini M, Zucchelli G, Giannobile WV, Wang HL. Wound healing dynamics, morbidity, and complications of palatal soft-tissue harvesting. Periodontol 2000. 2023 Jun;92(1):90-119. doi: 10.1111/prd.12466. Epub 2022 Dec 30.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Comparator | xHyA | Unknown | 1.2 ml | — |
Indications
No indication recorded.