title: Influence of Maxillary Sinus Width on Transcrestal Sinus Augmentation Outcomes: Radiographic Evaluation Based on Cone Beam CT.
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.
  
  
  OBJECTIVE
  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).
  
  
  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.
  
  
  CONCLUSIONS
  The findings show that graft bone resorption in elevated sinus has a positive correlation with the SW.
authors.affiliation: State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.|Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.|National Clinical Key Specialty on Oral Implantology, Chengdu, Sichuan, China.
authors.forename: Xiaofei
authors.initials: X
authors.lastname: Zheng
authors.affiliation: State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.|Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.|National Clinical Key Specialty on Oral Implantology, Chengdu, Sichuan, China.
authors.forename: Minhua
authors.initials: M
authors.lastname: Teng
authors.affiliation: State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.|Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.|National Clinical Key Specialty on Oral Implantology, Chengdu, Sichuan, China.
authors.forename: Fengjuan
authors.initials: F
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.|Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.|National Clinical Key Specialty on Oral Implantology, Chengdu, Sichuan, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Ye
authors.affiliation: State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China.|Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
authors.forename: Guanda
authors.initials: G
authors.lastname: Li
authors.affiliation: Dental Implant Center, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.|National Clinical Key Specialty on Oral Implantology, Chengdu, Sichuan, China.
authors.forename: Anchun
authors.initials: A
authors.lastname: Mo
mesh_terms: D000368:Aged; D001862:Bone Resorption; D054893:Cone-Beam Computed Tomography; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery; D008443:Maxillary Sinus / Q000601:surgery*; D008875:Middle Aged
keywords: bone grafting; cone beam CT; dental implant; maxillary sinus width; sinus floor elevation