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 5 year old male patient complains of multiple carious teeth and has the habit of frequent snacking and is fond of chocolates. Intra-oral examination shows grossly carious mandibular molars. Radiologic findings reveal proximal caries with mandibular canines and grossly carious molars. Which of the following crowns should be considered during restoration of this tooth? \nSelect and explain. \nA. Stainless steel crown, B. Direct resin crown, C. Strip crown, D. Interim composite restoration', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The indications for the use of stainless\xa0steel crowns in pediatric dentistry include the following:\n\nRestorations for primary or young permanent teeth with extensive and/or multiple caries lesions.\nRestorations for hypoplastic primary or permanent teeth that cannot be adequately restored with\xa0bonded restorations.\nRestorations for teeth with hereditary anomalies, such as dentinogenesis imperfecta or\xa0amelogenesis imperfecta.\nRestorations for pulpotomized or pulpectomized primary or young permanent teeth when there is\xa0increased danger of fracture of the remaining coronal tooth structure.\nRestorations for fractured teeth.\nRestorations for primary teeth to be used as abutments for appliances.\nAttachments for habit-breaking and orthodontic appliances.\n\nThe composite materials have proved to provide a more satisfactory interim restoration for many of\xa0these teeth. Such a bonded composite build-up restoration allows for the preservation of all sound\xa0tooth structure and depends on the presence of some enamel surfaces to provide bonded retention\xa0for the restorative material. Any soft defective areas are excavated, but little or no additional tooth\xa0preparation is done. Usually even undermined enamel surfaces are preserved for additional retention\xa0 and support of the restorative material.', 'role': 'assistant'}]