Epithelialized gingival graft (EGG) harvesting from the palate is associated with postoperative morbidity, including pain and bleeding, due to healing by secondary intention. The effectiveness of palatal stents in reducing donor-site morbidity, particularly in suture-free techniques, remains unclear. This randomized controlled clinical trial evaluates the effect of a custom-made acrylic palatal stent (APS) compared with no stent on postoperative outcomes following EGG harvesting. The primary outcome is postoperative pain assessed using a visual analog scale (VAS). Secondary outcomes include other patient-reported measures, clinician-reported healing, and exploratory assessments of tissue healing.
Epithelialized gingival graft (EGG) harvesting is widely used in periodontal plastic surgery but is associated with postoperative discomfort at the palatal donor site. Healing occurs by secondary intention and may result in pain, bleeding, and delayed recovery. Palatal stents have been proposed as a mechanical approach to protect the wound and reduce morbidity; however, evidence supporting their effectiveness, especially in suture-free techniques, is limited. This randomized controlled, assessor-blind, parallel-arm clinical trial aims to evaluate the effect of a custom-made acrylic palatal stent (APS) on postoperative morbidity following EGG harvesting. Patients were randomly assigned to receive APS or no stent after surgery. The primary outcome is postoperative pain. Secondary outcomes include patient-reported measures, clinical healing parameters, and exploratory assessments of tissue healing.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
44
A custom-made acrylic palatal stent (APS) will be fabricated prior to surgery based on an impression of the maxillary arch. The device will be thermoformed, trimmed, polished, and adjusted for proper fit and retention. Following epithelialized gingival graft (EGG) harvesting, the APS will be positioned over the palatal donor site to provide mechanical protection and stabilization of the blood clot. The stent will be worn continuously during the early healing phase according to the study protocol.
Following epithelialized gingival graft (EGG) harvesting, no protective device will be applied to the palatal donor site. Hemostasis will be achieved through local anesthesia only, without the use of sutures, pressure, or additional hemostatic agents. Healing will occur by secondary intention
C.I.R. Dental School
Torino, Torino, Italy
Postoperative pain at the palatal donor site
Postoperative pain assessed using a 100-mm visual analog scale (VAS), where 0 indicates no pain and 100 indicates worst imaginable pain. Patients will record pain daily using standardized questionnaires
Time frame: 7 days after surgery
Postoperative bleeding
Patient-reported bleeding at the palatal donor site assessed using a 100-mm VAS
Time frame: Daily from Day 1 to Day 7, Day 14, 21, 28
Postoperative swelling
Patient-reported swelling assessed using a 100-mm VAS.
Time frame: Daily from Day 1 to Day 7, day 14, 21, 28
Analgesic consumption
Total intake of ibuprofen (mg) recorded by patients during the postoperative period.
Time frame: 7 days after surgery
Oral health-related quality of life (OHIP-14)
Oral health-related quality of life assessed using the OHIP-14 questionnaire
Time frame: Baseline, 7 days, 14 days, 21 days, 28 days
Willingness to undergo retreatment
Patient willingness to undergo a similar procedure in the future (yes/no)
Time frame: 28 days after surgery
Epithelialization
Wound epithelialization assessed using hydrogen peroxide (H₂O₂) test and classified as none, partial, or complete.
Time frame: 7 and 14 days after surgery
Clinical wound healing
Healing assessed from standardized photographs evaluating color match, tissue contour, and scar appearance using visual analog scales.
Time frame: 7, 14 days
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