Quantitative research using computed tomographic scanning of beagle jaws for determination of safe zones for micro-screw implantation.
OBJECTIVE
The aim of this study was to provide an anatomical map for micro-screw placement in a safe location between the posterior dental roots of the beagle jaw.


METHODS
Three dimensional (3D) reconstructed images of 12 adult male beagles and jaw ground sections of another 6 beagles were examined. We measured sagittal, vertical and horizontal parameters in the intraradicular and interradicular regions of posterior teeth.


RESULTS
The data showed that the safe zones were located in the intraradicular spaces of P2, P3, P4, M1, M2 and the interradicular spaces between P4 and M1, M1 and M2 in the mandible; in the maxilla, they were located in the intraradicular spaces of P3, P2, M1 and the interradicular space between P3 and M1.


CONCLUSIONS
The present study provides a map of safe areas for the application of micro-screws in beagles.
Zhao
Lixing
L
State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, 14# Section 3 Renminnan Road, Chengdu, PR China.
Xu
Zhenrui
Z
Yang
Zhi
Z
Wang
Jun
J
Wei
Xing
X
Tang
Tian
T
Zhao
Zhihe
Z
D000818:Animals; D001863:Bone Screws; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D004285:Dogs / Q000033:anatomy & histology*; D005260:Female; D007091:Image Processing, Computer-Assisted; D007568:Jaw / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D008297:Male; D008334:Mandible / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D008437:Maxilla / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D012886:Skull / Q000033:anatomy & histology; D014057:Tomography, X-Ray Computed
D015921:Dental Implants