Influence of Maxillary Sinus Width on Transcrestal Sinus Augmentation Outcomes: Radiographic Evaluation Based on Cone Beam CT. (26th February 2015)

• Record Type: Journal Article
• Authors: Zheng, Xiaofei; Teng, Minhua; Zhou, Fengjuan; Ye, Jun; Li, Guanda; Mo, Anchun
• Is Part Of: Clinical implant dentistry and related research. Volume 18:Number 2(2016:Apr.)
• Page Start: 292
• Page End: 300
• Publication Date: 2015-02-26
• Subjects: bone grafting -- cone beam CT -- dental implant -- maxillary sinus width -- sinus floor elevation; Dental implants -- Periodicals; Dental Implantation -- Periodicals; Dental Implants -- Periodicals; 617.693
• DOI: 10.1111/cid.12298
• Languages: English
• ISSNs: 1523-0899

Abstract

Abstract: Background: Maxillary sinus elevation is a predictable procedure to vertically enhance bone volume in the posterior maxilla for successful implant placement. It is speculated that graft bone resorption and remodeling which require angiogenesis may be affected by the dimensions of maxillary sinus cavity. Purpose: The aim of this study is to investigate the effect of sinus width (SW) on the outcomes of transcrestal sinus lift with simultaneous implant placement based on cone beam CT (CBCT). Materials and Methods: A total of 57 elevated sites in 33 patients were included in this study. All the patients were treated with transcrestal sinus lift procedure associated with simultaneous implant placement using a composite graft material of autogenous bone and Bio‐Oss. For each patient, CBCT scans were performed preoperatively, immediately after surgery and 6 months after surgery. Measurements of the linear parameters were conducted on the preoperative and postoperative CBCT images. The correlation of SW with graft resorption (GR) was analyzed using Pearson's correlation test with or without the classification of residual bone height. Results: The average width of maxillary sinus was 13.68 ± 2.66 mm. The mean height of apical graft bone decreased from 2.85 mm immediately after surgery to 1.38 mm after 6 months. A positive association between SW and GR ( r = 0.323, p = .014) was found in general. Conclusion: The findings show that graft bone resorption in elevated sinus has a positive correlation with the SW.