What size defect is recommended for Buccal Fat Pad closure in oro-antral fistula management?

Buccal fat pad closure is a surgical technique used in the management of oro-antral fistulas, particularly those that are larger and pose a challenge in achieving closure through primary intention. For defects that are 7 mm and larger, the buccal fat pad serves as a robust source of tissue that can effectively fill the gap created by the fistula.

The buccal fat pad is a highly vascularized tissue, which not only enhances the healing process but also provides necessary structural support for larger defects. In the case of oro-antral fistulas, utilizing the buccal fat pad is particularly advantageous because it helps to reduce the risk of recurrence and promotes optimal closure of the defect.

For smaller defects, alternative methods such as primary closure or local flaps may suffice, making the use of the buccal fat pad less critical. Thus, the recommendation specifically targeting defects 7 mm and larger recognizes the limitations and potential complications associated with smaller defects, where using a vascularized graft like the buccal fat pad is more beneficial.