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Multiple Choice: Chapter 50 Crowns Question 1. Which one of the following statements is true? A Surveyed crowns can be useful retainers for partial dentures B Preparations for PFM crowns are more aggressive than all-ceramic crowns C The main function of a temporary crown is to maintain dental appearance D Porcelain-fused-to-metal crowns are indicated equally in young and old patients E All-ceramic crowns are strong enough to be used in patients with occlusal parafunction
