MCQOPTIONS
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				| 1. | 
                                    Fourth canal is present in_____________? | 
                            
| A. | Mesiobuccal roots of maxillary first molar | 
| B. | Distal root of mandibular first molar | 
| C. | Both of the above | 
| D. | None of the above | 
| Answer» D. None of the above | |