J Korean Radiol Soc.
1994 Jul;31(1):7-12.
Imaging of Jaw with Dental CT Software Program Normal Anatomy
Abstract
- PURPOSE
Dental CT software program can provide reformatted cross-sectional and panoramic images that
cannot be obtained with conventional axial & direct coronal CT scan. The purpose of this study is to describe
the method of the technique and to identify the precise anatomy of jaw.
MATERIALS AND METHODS
We evaluated 13 mandibles & 7 maxillae of 15 subjects without bony disease who
were being considered for endosseous dental implants. Reformatted images obtained by the use of bone algorithm
performed on GE HiSpeed Advantage CT scanner were retrospectively reviewed for detailed anatomy of
RESULTS
Anatomy related to neurovascular bundle(mandibular foramen, inferior alveolar canal, mental foramen,
canal for incisive artery, nutrient canal, lingual foramen and mylohyoid groove), muscular insertion(mylohyoid
line, superior & inferior genial tubercle and digastric fossa) and other anatomy(submandibular fossa,
sublingual fossa, contour of alveolar process, oblique line, retromolar fossa, temporal crest & retromolar triangle)
were well delineated in mandible. In maxilla, anatomy related to neurovascular bundle(greater palatine
foramen & groove, nasopalatine canal and incisive foramen) and other anatomy(alveolar process, maxillary
sinus & nasal fossa) were also well delineated.
CONCLUSION
Reformatted images using dental CT software program provided excellent delineation of the
jaw anatomy. Therefore, dental CT noftware program can play an important role in the preoperative assessment
of mandible and maxilla for dental implants and other surgical conditions.