Mandibular premolars typically have two pulp canals.Maxillary first premolars are more likely than maxillary second premolars to have two pulp canals.
A) Both statements are true. B) The first statement is true;the second statement is false. C) The first statement is false;the second statement is true. D) Both statements are false.
Orthodontics requires a sustained pressure to move teeth to a new location.Osteoblasts respond to the new location by forming new bone.
A) Both statements are true. B) The first statement is true;the second statement is false. C) The first statement is false;the second statement is true. D) Both statements are false.