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Revista clínica de periodoncia, implantología y rehabilitación oral

versión On-line ISSN 0719-0107


SCHULZ-ROSALES, Rolando et al. Skeletal characteristics for subjective determination of facial type in cephalometric x-ray: a pilot study. Rev. Clin. Periodoncia Implantol. Rehabil. Oral [online]. 2018, vol.11, n.3, pp.164-166. ISSN 0719-0107.


Determine simple visual parameters to evaluate skeletal characteristics related to facial types in lateral teleradiographs.

Materials and Methods:

Descriptive cross-sectional study. A printed visual guideline about the eight visible morphological characteristics of the facial skeleton in cephalometric x-rays was created. The guideline was given to 69 undergraduate dental students (fifth year) without previous studies in cephalometric to analyze it for 10 minutes. Immediately after, they were shown a series of teleradiographs and were asked to evaluate 8 characteristics through a series of options presented in a visual scale according to the guideline. The answers were recorded through a digital audience response system (clickers). The data obtained were analyzed with the Rasch method to assess each item level of difficulty, establishing the Logit number for each one.


The students identified and graded without difficulty 5 of the 8 characteristics. These were: Chin projection (-2.49), Facial divergence (-2.85), Mandibular ramus width (-1.97), Sigmoid notch (-0.96) and Mandibular body with ramus relationship (-0.06).


Five facial osseous morphological characteristics related to the facial types can be identified and graded without difficulty by undergraduate dental students. This information may be used to create a facial type identification scale.

Palabras clave : Cephalometric analysis; Growth and Development; Face; Jaw; Orthodontic; Lateral cephalogram.

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