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': 'Which of the following is an  adhesive perforation repair material: \nSelect and explain. \nA. Calcium sulphate., B. Amalgam., C. ZOE., D. Geristone.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Geristore (Rapid setting resin-glass ionomer hybrids)-\n\nHas good capacity of bonding with the tooth structure\n\nRecommended for:-\n\nRoot-end filling material\nRestoring subgingival surface defects\nRoot surface caries\nExternal root resorption lesions\nIatrogenic root perforations\nSubgingival oblique fractured roots', 'role': 'assistant'}]