title: A comparative study of dog models for osteotome sinus floor elevation and dental implants in posterior maxilla subjacent to the maxillary sinus.
abstract: OBJECTIVE
  The objective of this study was to investigate the suitability of beagles and Labrador retrievers as animal models for osteotome sinus floor elevation (OSFE) and dental implants in posterior maxilla subjacent to sinus.
  
  
  METHODS
  Ten beagles and 8 Labrador retrievers were included. Their posterior maxillas subjacent to the sinus were studied by a gross survey, CT scan, and histologic analysis.
  
  
  RESULTS
  In the posterior maxilla subjacent to sinus, the bone height was significantly higher for Labrador retrievers than for beagles (P < .05). There was no significant difference in sinus size from the coronal section and its location from the sagittal section (P > .05) between Labrador retrievers and beagles.
  
  
  CONCLUSIONS
  As an animal model, the Labrador is more suitable for OSFE and dental implants in posterior maxilla subjacent to sinus. The midpoint of the maxillary fourth premolar is an ideal site for implantation.
authors: Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors: Nizhou
authors: N
authors: Liu
authors: Fei
authors: F
authors: Sun
authors: Chendi
authors: C
authors: Xu
authors: Tingting
authors: T
authors: Lin
authors: Eryi
authors: E
authors: Lu
mesh_terms: D000818:Animals; D001641:Bicuspid / Q000033:anatomy & histology; D002508:Cephalometry / Q000379:methods; D003724:Dental Arch / Q000033:anatomy & histology; D015921:Dental Implants; D004285:Dogs / Q000033:anatomy & histology*; D005260:Female; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008437:Maxilla / Q000033:anatomy & histology*; D008443:Maxillary Sinus / Q000033:anatomy & histology*; D023421:Models, Animal; D008963:Molar / Q000033:anatomy & histology; D009297:Nasal Mucosa / Q000033:anatomy & histology; D009300:Nasal Septum / Q000033:anatomy & histology; D009915:Orbit / Q000294:innervation; D010027:Osteotomy / Q000295:instrumentation; D059546:Sinus Floor Augmentation / Q000295:instrumentation / Q000379:methods*; D036542:Tomography, Spiral Computed / Q000379:methods; D015050:Zygoma / Q000033:anatomy & histology
chemical_list: D015921:Dental Implants