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International journal of interdisciplinary dentistry

versión impresa ISSN 2452-5596versión On-line ISSN 2452-5588

Resumen

ALVIAL-VERGARA, Lucía; LINKER-NAVARRO, Karin  y  VERGARA-NUNEZ, Cristian. Natural head position and its relationship with the Frankfurt Plane in orthodontic cephalometry. Int. j interdiscip. dent. [online]. 2021, vol.14, n.3, pp.218-221. ISSN 2452-5596.  http://dx.doi.org/10.4067/S2452-55882021000300218.

Objective:

the aim of this study was to determine the Frankfurt plane variation evaluated in photogrammetry and lateral skull x-ray cephalometry in relation to the true horizontal.

Materials and methods:

the study included 34 volunteers from the Universidad de Chile Dento-maxillofacial Orthodontics and Orthopedics Postgraduate Clinic. Their lateral skull radiographs, oriented according to the Frankfurt Plane parallel to the floor, were used and a standardized profile facial photograph was taken in Natural Head Position. The Frankfurt Plane and True Horizontal were drawn in both examinations and the angle formed between these planes was measured.

Results:

when comparing the angles through T-test, there was no statistical difference.

Conclusions:

through the application of a systematized protocol for both photographic record and natural head position obtained, the Frankfurt Plane can be practically coincident in lateral skull x-rays and clinical photographs, showing its usefulness up to the present days in modern orthodontics.

Palabras clave : Frankfurt plane; Natural head position; True horizontal; Cephalometry; Photogrammetry.

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