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': 'Malocclusion\trepresenting\ta transverse deficiency is often referred to as: \nSelect and explain. \nA. Open bite, B. Closed bite, C. Crossbite, D. Deep bite', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ACKERMAN-PROFITT SYSTEM OF CLASSIFICATION\nCHARACTERISTIC 1 – ALIGNMENT\nIntra arch alignment and symmetry are assessed as when seen in the occlusal view.\nA dental arch is classified as ideal / crowded / spaced.\nCHARACTERISTIC 2 – PROFILE\nThe profile can be convex / straight / concave.\nThis also includes the assessment of facial divergence, i.e. anterior or posterior divergence.\nCHARACTERISTIC 3 – TRANSVERSE RELATIONSHIPS\nThey include transverse skeletal and dental relationships.\nBuccal and palatal crossbites are noted. These are further subclassified as unilateral or bilateral.\nDistinction is made between skeletal and dental crossbites.\nCHARACTERISTIC 4 – CLASS\nHere, the sagittal relationship of the teeth is assessed using the Angle classification as Class I / Class II / Class III.\nA distinction is made between skeletal and dental malocclusions.\nCHARACTERISTIC 5 – OVERBITE\nMalocclusions are assessed in the vertical plane.\nThey are described as anterior open bite / posterior open bite / anterior deep bite / posterior collapsed bite.\nHere, again a distinction is made as to whether the malocclusion is skeletal or dental.', 'role': 'assistant'}]