The value of maxillary sinus width and angle in predicting the stability of maxillary sinus floor lifting via alveolar crest

doi:10.19438/j.cjoms.2022.05.012

Abstract

Abstract: PURPOSE: To explore the value of cone beam CT (CBCT) measuring the width and angle of the maxillary sinus to predict the stability of bone graft during alveolar crest top and maxillary sinus floor elevation. METHODS: Seventy- eight patients undergoing transalveolar crest maxillary sinus floor elevation and implantation at the same time were collected as research subjects. The width, angle of the maxillary sinus and the amount of bone resorption at the root end were examined by cone beam(CBCT) before and 6 months after operation. The factors affecting the stability of bone grafts during alveolar ridge top and maxillary sinus floor elevation were analyzed, and the value of maxillary sinus width and maxillary sinus angle in predicting the stability of bone graft stability during alveolar ridge top and maxillary sinus floor elevation was analyzed. SPSS 18.0 software package was used for data analysis. RESULTS: Bone resorption at the root end of the implant was (1.81±0.26) mm 6 months after operation. Among them, forty-nine patients had root end bone resorption ≤1.81 mm, and 29 patients had root end bone resorption >1.81 mm. Logistic multivariate regression analysis showed that the width and the angle of the maxillary sinus were independent factors affecting the stability of bone graft during alveolar crest top and maxillary sinus elevation (OR: 3.873, 4.518, 95%CI: 1.594~9.412, 1.859~10.979, P<0.05). ROC curve analysis showed that the AUC of maxillary sinus width, maxillary sinus angle and combination of the two to predict the stability of the bone graft during alveolar crest top and maxillary sinus elevation was 0.764, 0.742, 0.908, respectively. CONCLUSIONS: The width and angle of the maxillary sinus are indicators that affect the stability of bone graft during elevation of the alveolar crest and maxillary sinus floor. Combination of the two indicators is effective in predicting the stability of bone graft.

Key words: Maxillary sinus width, Maxillary sinus angle, Alveolar crest top and maxillary sinus floor lift, Bone graft

CLC Number:

R782.1

ZHU Ting, ZHOU Wu, ZHUANG Gui-jing, KANG Cheng, QIU Shi, LUO Shan-feng. The value of maxillary sinus width and angle in predicting the stability of maxillary sinus floor lifting via alveolar crest[J]. China Journal of Oral and Maxillofacial Surgery, 2022, 20(5): 483-487.

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