Open AccessA Variation in Tooth Position-180º Rotated Maxillary Second Premolar
Author(s) -
Gurudutt Nayak,
Inder Singh
Publication year - 2013
Publication title -
journal of clinical and diagnostic research
Language(s) - English
Resource type - Journals
eISSN - 2249-782X
pISSN - 0973-709X
DOI - 10.7860/jcdr/2013/5682.3285
Subject(s) - premolar , dentition , orthodontics , rotation (mathematics) , dentistry , maxillary canine , abnormality , anomaly (physics) , medicine , mathematics , geometry , physics , molar , psychiatry , condensed matter physics
Rotation of a tooth around an axis which is perpendicular to the occlusal plane through angles which approach 180° is a rare anomaly which is found in the human dentition. Such aberrations present a multi-factorial model in their origin. Both genetic and local factors seem to contribute to this abnormality. If the contribution of local factors could be identified, a way could open to an early treatment and prevention of secondary rotations of opposing and contiguous teeth. A case of a 180° rotation of maxillary left second premolar in a male patient of Indian origin has been described here.