This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'A 25 year old male patient complains of frequent cheek biting. According to Dewey’s modification of Angle’s Class I malocclusion, which category would the malocclusion displayed by the patient be classified as? \nSelect and explain. \nA. Type 1, B. Type 3, C. Type 4, D. Type 5', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Dewey modified Angle’s Class I and III malocclusion by segregating malposition of anterior and posterior segments.\nCL I:\xa0\n\nType 1: Crowding of maxillary anterior teeth\nType 2: Proclined maxillary incisors\nType 3: Maxillary incisors are in crossbite\nType 4: Posterior cross-bite\nType 5: Mesial drift of molars\n\nCL II :\xa0(No modifications)\nCL III:\xa0\n\nType 1: Edge to edge bite.\nType 2: Crowded mandibular incisors and lingual to maxillary incisors.\nType 3: Underdeveloped crowded maxillary arch and a well developed mandibular arch.\n\nRef: Kharbanda OP. Orthodontics: Diagnosis of & Management of Malocclusion & Dentofacial Deformities. 3rd edition page 333\nImage: Montaruli G, Laurenziello M, LO RUSSO L, Chimenti C, LO MUZIO L, Ciavarella D. Bilateral or Unilateral Cross-Bite Treatment with Nickel Titanium Palatal Expander (NPE-2) in Young Adults.', 'role': 'assistant'}]