Tooth length determination: A review

Alexander Katz*, Aviad Tamse, Arieh Y. Kaufman

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

57 Scopus citations


Tooth length determination is a crucial step in endodontic treatment. Until the late 1970s, tooth length determination was based mainly on radiographic interpretation. The advent of apex locators, which identify the difference in the electrical resistance between the root canal and the periodontal membrane, ushered in a new era for measuring tooth length. However, the accuracy of these devices has been questioned. Pertinent literature is discussed with the aim of providing information on the development of the concept, techniques, and devices for tooth length determination.

Original languageEnglish
Pages (from-to)238-242
Number of pages5
JournalOral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Issue number2
StatePublished - Aug 1991


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