Volume 15, Number 1, March 2003
| | A New Classification of Impacted Canines and Second Premolars Using Orthopantomography |
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Gaku Yamamoto,1 Yoshiyuki Ohta,2 Yoshizou Tsuda,3 Akio Tanaka,3 Masanori Nishikawa,1 Hirofumi Inoda1
1Department of Oral and Maxillofacial Surgery, Shiga University of Medical Science, Shiga, Japan
2Ohta Orthodontic Clinic, Shiga, Japan
3Department of Oral and Maxillofacial Surgery, Shiga Medical Center for Adult Diseases, Shiga, Japan Abstract
Objective: To establish a simple classification of impacted canines and second premolars.
Patients and Methods: Impacted canines and second premolars were examined according to the inclination of the tooth axis to the occlusal plane as determined by orthopantomograms.
Results: Seventy impacted canines in 65 patients and 40 impacted second premolars in 37 patients were included in the study. Based on the angle of inclination of the tooth axis to the occlusal plane on the orthopantomogram, impacted maxillary and mandibular canines and second premolars were classified into 7 types.
Conclusion: This classification should be advantageous for dental practice and useful for documentation and correlation with treatment outcomes.
Key words: Tooth, impacted, Cuspid, Bicuspid, Classification, Radiography, panoramic
Asian J Oral Maxillofac Surg. 2003;15:31-37.
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