This fact is from Dental Anomalies in Oral Pathology & Microbiology. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
Dens in dente = most common in lateral incisor
Taurodontism = bull teeth = enlarged pulp chamber
Gemination = 1 tooth tries to split = normal count
Fusion = 2 teeth join = reduced count
Dilaceration = bend in root
Concrescence = cemental fusion
Ankylosis = no PDL.