Efficacy of Collagen Sponge on Palatal Wound Healing

Efficacy of Collagen Sponge on Palatal Wound Healing: a Randomized Controlled Clinical Trial

The aim of this study is to compare the efficacy of collagen sponge and gelatin sponge on the palatal wound healing and postoperative pain following gingival graft harvesting.

The aim of this study is to compare the efficacy of collagen sponge and gelatin sponge on the palatal wound healing and postoperative pain following gingival graft harvesting. The included patients will be randomized into two groups. The patients in control group will be treated with gelatin sponge and those in the test group will be treated with collagen sponge. The postoperative pain will be assessed by VAS scale at day 1, 3 and 7 after surgery. Epithelialization of the palatal wound will be evaluated by hydrogen peroxide test and digital photography at 1 week postoperatively. Additionally, postoperative pain, consumption of analgesics, willingness to repeat the treatment and the existence of delayed bleeding will be recorded at 1 week. At 2 weeks, 3 weeks and 1 month after surgery, epithelialization of the palatal wound and aesthetic scores will be evaluated.

Inclusion Criteria:

1. Age ≥ 18 years
2. Clinical indications utilizing free gingival grafts or de-epithelialized gingival grafts to treat either insufficient keratinized tissue or gingival recession defects
3. Full-mouth plaque score and full-mouth bleeding score lower than 20%

Exclusion Criteria:

1. Smoking
2. Pregnancy or lactation
3. Untreated periodontal disease
4. Severe systemic conditions that contraindicate surgery (diabetes, heart disease, cancer etc.)
5. Presence of coagulation disorders (history of Haemophilia, von Wille-brand disease, or anticoagulant therapy)
6. Taking medications affecting periodontal health or healing
7. Previous surgery for a palate graft harvested from the experimental sites