2[2]Carol M,Petrina P,Graham JR.The radiographic localization of impacted maxillary canines:a comparison of methods[J].Eur of Orthodon,2001,23(1):25-34.
5Liu DG, Zhang WL, Zhang ZY, et al. Three-dimensional evaluations of supernumerary teeth using cone-beam computed tomography for 487 cases[J]. Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2007,103(3):403-411.
6Mason C, Papadakou P, Roberts GJ. The radiographic localization of impacted maxillary canines:a comparison of methods [J]. Eur J Orthod,2001,23(1):25-34.
7Schuknecht B, Graetz K. Radiologic assessment of maxillofacial, mandibular and skull base trauma[J].Eur Rdiol,2005,15(3):560-568.
8Verstreken K, van Cleynenbreugel J,Martens K,et al.An imageguided planning system for endosseous oral implants [J].IEEE Trans Med Imaging,1998,17(5):842-852.
9Schellhas KP, Eldeeb M, Wilkes CH, et al. Three-dimensional computed tomography in maxillofacial surgical planning [J]. Arch Otolaryngol Head Surg,1988,114(4):438-442.
10Mason C, Papadakou P, Roberts GJ. The radiographic localization of impacted maxillary canines: a comparison of methods [J].Eur J Orthod,2001,23(1):25-34.
