Violation
In the mandibular dental arch of a 12-year old boy, the permanent first molars are in contact with the first premolars and the crowns of the second premolars have erupted lingually. The likely cause is
lack of space.
premature loss of deciduous second molars.
ankylosis of the mandibular second premolars.
faulty lingual eruption of the second premolars
teeth too large for the dental arch