Endoscopic lift of the maxillary sinus floor in Beagle dogs

Abstract

Abstract: PURPOSE: To introduce a modified endoscopic lift of the floor of the maxillary sinus in Beagle dogs. METHODS: Twelve operations (bilateral and randomly chosen) were done in 6 Beagle dogs in the experimental group (modified endoscopic operation) and the control group, in which the operation was done with an osteotome. All operations were evaluated by 2 indices of safety (perforation of the sinus membrane and nasal bleeding) and 3 effective indices (intraoperative height after lifting, volume of bone grafts, and dislocation of the sinus grafts). Wilcoxon sign rank test was conducted using SAS 9.0 software package. RESULTS: The intraoperative height after lifting was (13.7±0.8) mm in the experimental group and (9.1±0.5) mm in the control group, significant difference existed between the 2 groups (P=0.0001). Similarly, the volume of bone graft was (0.9±0.04) mL in the experimental group and (0.5±0.02) mL in the control group (P=0.0001). The volume of the anterior and posterior bone grafts in the implant cavity in the experimental group had no significant difference (P=0.102), while there was significant difference in the control group (P=0.002). CONCLUSIONS: Endoscopic lifting of the floor of the maxillary sinus is a safe and effective approach based on direct observation in Beagle dogs.

Key words: Sinus lift, Endoscopic Surgery, Beagle dog

CLC Number:

R782.05

ZHENG Ji-si, CHIU Han-hsuan, ZHANG Shan-yong, YANG Chi, ZHANG Ying. Endoscopic lift of the maxillary sinus floor in Beagle dogs[J]. China Journal of Oral and Maxillofacial Surgery, 2015, 13(2): 124-128.

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