The Preternatural First Premolar: A Ground Section Tooth Case Report


Authors : Dr. Manjunath A. B.; Dr. Ahmed Mujib B. R.; Dr. Chinmaya G J.

Volume/Issue : Volume 9 - 2024, Issue 3 - March

Google Scholar : https://tinyurl.com/mr9st5ks

Scribd : https://tinyurl.com/yc8fv297

DOI : https://doi.org/10.38124/ijisrt/IJISRT24MAR650

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Abstract : Ectopic eruption is a developmental disturbance in eruption pattern of permanent dentition most often associated with maxillary first permanent molar (2-6%of general population), mandibular lateral incisors (<1%), maxillary permanent canines (1.5-2%). Ectopic eruption of teeth is a rare phenomenon although cases have been reported in nasal cavity, maxillary sinus, mandible, palate, orbital cavity. Ectopic eruption of mandibular first premolar is a rare condition and there were no discussions in the literature about its eruption in coronoid process. Premature loss of primary second molar and second permanent premolar can lead to disturbed eruption of first premolar. In this case report, we present an ectopic mandibular first premolar at the level of sigmoid notch below the right coronoid process.

Ectopic eruption is a developmental disturbance in eruption pattern of permanent dentition most often associated with maxillary first permanent molar (2-6%of general population), mandibular lateral incisors (<1%), maxillary permanent canines (1.5-2%). Ectopic eruption of teeth is a rare phenomenon although cases have been reported in nasal cavity, maxillary sinus, mandible, palate, orbital cavity. Ectopic eruption of mandibular first premolar is a rare condition and there were no discussions in the literature about its eruption in coronoid process. Premature loss of primary second molar and second permanent premolar can lead to disturbed eruption of first premolar. In this case report, we present an ectopic mandibular first premolar at the level of sigmoid notch below the right coronoid process.

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