牙醫學(三)（包括齒內治療學、牙體復形學、牙周病學等科目及其相關臨床實例與醫學倫理）題庫下載題庫

【Hint】

1、 The Maxillary first premolar may have one, two, or three roots and canals;; it most often have. If two canals are present, they are labeled buccal and palatal;; three root canals are designated mesiobuccal, distobuccal, and palatal.

2、 The palatal canal usually is slightly larger than the buccal canal.

3、 Ethnicity plays a factor in that Asian people have a higher incidence of one canal than do other ethnic groups.

【出處】Cohen’s  Pathways  of  the  Pulp(10th  edition)  P.18...

【Hint】

1、 The Maxillary first premolar may have one, two, or three roots and canals;; it most often have. If two canals are present, they are labeled buccal and palatal;; three root canals are designated mesiobuccal, distobuccal, and palatal.

2、 The palatal canal usually is slightly larger than the buccal canal.

3、 Ethnicity plays a factor in that Asian people have a higher incidence of one canal than do other ethnic groups.

【出處】Cohen’s  Pathways  of  the  Pulp(10th  edition)  P.184