MCQOPTIONS
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				| 1. | 
                                    The most constant and valuable trait to differentiate among maxillary first, second and third molars i____________? | 
                            
| A. | Number of roots | 
| B. | Depth of central fossae | 
| C. | Comparative size of the cusp of carabelli | 
| D. | Relative position of the distolingual grooves | 
| Answer» E. | |