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Volume 19 , Issue 1
January/February 1999
Pages 83-91

Root Trunk Dimensions of 5 Different Tooth Types

Kerns/Greenwell/Wittwer/Drisko/Williams/Kerns

PMID: 10379289
DOI: 10.11607/prd.00.0301

The primary purpose of this study was to document mean, standard deviation, and range of root trunk dimensions of multirooted tooth types. A total of 412 extracted teeth were e xamined and classified as: maxillary first molars, max illary second molars, maxillary first premolars, mandibular first molars, and mandibular second molars. The distance from the cemento-enamel junction (CEJ) to the root groove and from the CEJ to the root division was measured. Mean CEJ to root groove distances ranged from 1.35 to 1.65 mm for maxillary first molars, from 1.49 to 1.89 mm for maxillary second molars, from 1.71 to 1.73 mm for maxillary first premolars, from 1.16 to 1.22 for mandibular first molars, and from 1.53 to 1.76 mm for mandibular second molars.

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