Nohadani, Nasila; Pohl, Yango; Ruf, Sabine (2008). Displaced premolars in panoramic radiography: fact or fallacy? Angle orthodontist, 78(2), pp. 309-16. Huntsville, Tex.: Angle Orthodontists Research and Education Foundation 10.2319/030807-117.1
Full text not available from this repository. (Request a copy)OBJECTIVE: To test the null hypothesis that there is no difference between premolar position visualized on panoramic radiographs (PRs) and lateral headfilms (LHs). MATERIALS AND METHODS: The prevalence of differences in the direction of crown angulation between PR and LH was assessed. Furthermore, brass wire markers with different sagittal and transverse angulations were placed in a dry skull. With the markers in place, LHs and PRs were taken. RESULTS: A difference in the direction of crown angulation of unerupted second premolars between PR and LH occurred in 19.5% of patients. The reason for the angulation differences is a buccolingual orientation of the tooth, which appears as a mesiodistal angulation on the PR. CONCLUSION: The null hypothesis was rejected since in one-fifth of the patients premolar projection differs between the panoramic radiograph and the lateral headfilm.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Orthodontics |
UniBE Contributor: |
Nohadani, Nasila |
ISSN: |
0003-3219 |
Publisher: |
Angle Orthodontists Research and Education Foundation |
Language: |
English |
Submitter: |
Eveline Carmen Schuler |
Date Deposited: |
04 Oct 2013 15:02 |
Last Modified: |
05 Dec 2022 14:19 |
Publisher DOI: |
10.2319/030807-117.1 |
PubMed ID: |
18251606 |
Web of Science ID: |
000253238800020 |
URI: |
https://boris.unibe.ch/id/eprint/26837 (FactScience: 89997) |
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