,Next, bilateral gingivobuccal sulcus incisions were made and a Joseph elevator was used to elevate the periosteum of the midface and anterior face of the maxilla from the tendon of the masseter muscle up to Whitnall's tubercle. 
,Next , bilateral gingivobuccal sulcus incisions were made and a Joseph elevator was used to elevate the periosteum of the midface and anterior face of the maxilla from the tendon of the masseter muscle up to Whitnall 's tubercle .