MCQOPTIONS
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				| 1. | 
                                    Which material is the most difficult to remove from the patients mouth ? | 
                            
| A. | Metallic oxide paste | 
| B. | Silicone impression material | 
| C. | Reversible hydrocolloid | 
| D. | Impression plaster | 
| Answer» B. Silicone impression material | |