Please activate JavaScript!
Please install Adobe Flash Player, click here for download
ePaper created 2015-11-17, 15:11:47 | version 1.38.0
28 Volume 1 | Issue 1/2015 Journal of Oral Science & Rehabilitation Results CBCTevaluation Extent of postoperative swelling Slightswellingofthemaxillarysinusmembrane,of up to 4 mm, was observed in 21 sites (15.9%) be- fore the surgery. One week after surgery, postop- erative swelling of the sinus membrane was ob- servedin132sites(100%).Threemonthsaftersur- gery, the swelling of the sinus membrane had disappeared spontaneously (Fig. 1) in 127 sites (96.2%). The number of sites according to the three types of postoperative swelling is shown in Figure3.Inapproximately80%ofthesites,theex- tent of the postoperative swelling constituted morethanone-thirdoftheremainingsinuscavity: Type 1: 24 sites (18.2%) Type 2: 65 sites (49.2%) Type 3: 43 sites (32.6%). Migration of β-TCP granules Migration of the β-TCP granules toward the buccalsidethroughthe lateralwindowwas ob- served as a complication of the postoperative swelling ofthe maxillary sinus membrane. Case 1 (52-year-old female, Group 1, Type 3, Type C, nonsmoker) The sinus floor augmentation and the guided bone regeneration technique were performed simultaneously, and a barrier membrane was placed without covering the lateral window completely (Figs. 4a–c). One week after sur- gery, Type 3 swelling of the sinus membrane was observed and some β-TCP granules at the augmented area had disappeared (Fig. 4d, red arrows). According to the horizontal CBCT slice images, the β-TCP granules had migrated toward the buccal side through the lateralwin- dow and moved beyond the canine (Fig. 4e, yellow arrows). Ten days after surgery, intra- C om plic a tion s a fter s i nu s f lo o r au gme ntati o n Fig. 1 Classification of the postoperative swelling of the maxillary sinus membrane that occurred one week after the sinus floor augmentation. Three months after surgery, the postoperative swelling had disappeared spontaneously in 127 sites (96.2%). Fig. 1Type 1 Type 2 Type 3 Surg. 1 week 3 months