Surgical ablation of large maxillary cysts usually results in considerable hard and soft tissue deficits that ultimately affect the final esthetic and functional outcomes. Reconstruction of such defects; whether primarily or secondarily; offers much better long-term outcomes. However, primary bony reconstruction becomes potentially complicated in many cases of such large cysts encroaching or involving the maxillary sinus where a communication with the maxillary sinus lining may be unavoidable.