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Buccal Periosteal Inversion Flap vs Buccal Advancement Flap for Acute Oro-Antral Communication Closure
Sponsor: Medical University of Graz
Summary
This prospective randomized controlled clinical trial will compare the Buccal Periosteal Inversion Flap (BUPI) with the Buccal Advancement Flap (BAF) for the primary surgical closure of acute oro-antral communications (OAC) following tooth extraction in the posterior maxilla. The primary objective is to determine whether the BUPI technique results in better preservation of keratinized gingival width compared with the BAF technique three months after surgery. Secondary outcomes include successful closure rate of OACs, postoperative pain, swelling and bleeding, wound dehiscence or recurrence of the OAC, postoperative sinusitis or infection, reoperation rate, and operating time. Participants will be randomly allocated in a 1:1 ratio to either BUPI or BAF. Clinical examinations and intraoral scans will be performed before surgery and at follow-up visits after 14 days, one month, and three months.
Official title: Comparison of the Buccal Periosteal Inversion Flap and Buccal Advancement Flap for the Closure of Acute Oro-Antral Communications: A Prospective Randomized Controlled Clinical Trial
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
22
Start Date
2026-10
Completion Date
2028-03
Last Updated
2026-10-23
Healthy Volunteers
No
Conditions
Interventions
Buccal Periosteal Inversion Flap
Following elevation of a trapezoidal buccal mucoperiosteal flap, the periosteum is dissected from the overlying buccal mucosa from apical to coronal. The mobilized periosteal layer is inverted over the oro-antral communication and sutured to the palatal soft tissue to achieve tension-free closure, while the overlying buccal mucosa is largely maintained in its original position.
Buccal Advancement Flap
Following elevation of a trapezoidal buccal mucoperiosteal flap, the periosteum is incised to allow mobilization of the flap. The entire mucoperiosteal flap is advanced over the oro-antral communication to the palatal soft tissue to achieve tension-free primary closure.
Locations (1)
Medical University of Graz, Department of Dental Medicine and Oral Health
Graz, Styria, Austria