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Original Research

Open Access

Panoramic radiographic findings of the mandibular foramen from deciduous to early permanent dentition

  • Hung-Huey Tsai1,*,

1Department of Pedodontics, School of Dentistry, China Medical University, No. 91 Syueshih Rd., North District,Taichung 404,Taiwan (R.O.C.)

DOI: 10.17796/jcpd.28.3.gt48634942137234 Vol.28,Issue 3,July 2004 pp.215-219

Published: 01 July 2004

*Corresponding Author(s): Hung-Huey Tsai E-mail:


The purpose of this study was to investigate the position of the mandibular foramen from deciduous

(Hellman’s stage IIA) to early permanent dentition (Hellman’s stage IVA). Panoramic radiographs of

311 Taiwanese children were used. The results revealed that the distances between the mandibular

foramen and ramus anterior plane were greater than those between the mandibular foramen and

ramus posterior plane through all stages. The mean difference between them was the smallest

(0.25 mm) in stage IIA and the greatest (1.18 mm) in stage IIIC. The distance from the mandibular

foramen to the alveolar crest plane showed a little change from stage IIA (3.99 mm) to IVA (5.26 mm).

The gonial angle had a negative correlation with the distances between the mandibular foramen and

each mandibular border. Evaluation of the mandibular foramen from the oral aspect can be influenced

by the degree of mouth opening.

Cite and Share

Hung-Huey Tsai. Panoramic radiographic findings of the mandibular foramen from deciduous to early permanent dentition. Journal of Clinical Pediatric Dentistry. 2004. 28(3);215-219.


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