All the data observed corroborate with previous studies; the IO does not present a large difference in the Chilean population evaluated compared to pre-vious studies carried out in other populations. (Folia Morphol 2018; 77, 2: 272-278).

(Folia Morphol 2018; 77, 1: 131-137)

FUENTES, R.; DIAS, F.; ÁLVAREZ, G.; LEZCANO, M. F.; FARFÁN, C.; ASTETE, N. & ARIAS, A.Application of 3D electromagnetic articulography in dentistry: mastication and deglutition analysis. Protocol report. Int. J. Odontostomat., 12(1):105-112, 2018. ABSTRACT:The Stomatognathic System (SS) is an integrated and coordinated morphofunctional unit, consisting of skeletal, muscular, angiological, nervous, glandular and dental structures that work in harmony to perform different functions such as chewing, swallowing, speaking, breathing, tasting and esthetics. The study of SS physiology is crucial to achieving a correct maintenance of its normal function or restoration. Thus, we developed a protocol to record mandibular movement, chewing and swallowing (saliva and water) by using the 3D-electromagnetic articulograph AG501 at the Oral Physiology Laboratory of the Research Centre for Dental Sciences (CICO). This tool has been used for decades in speech and phonetic research and it is able to record, present and evaluate articulated structure movement data in real time. The articulograph provides an ordered data matrix (values for the x, y, z axes, among others) for the recorded movement, which is stored in binary files that can be processed by different software. One of these is MATLAB ® , allowing us to perform a quick, clear and understandable analysis. The existence of a standardized methodology for recording allows an accurate description of the stages to perform different types of measurements according to the researcher's objective. This has opened the way for a new type of oral physiology analysis based on study reproducibility, which is considered one of the bases of scientific methodology.

No abstract

FUENTES, R.; FLORES, T.; DIAS, F.; FARFÁN, C.; ASTETE, N.; NAVARRO, P. & ARIAS, A.Localization of the mental foramen through digital panoramic radiographs in a Chilean population. Int. J. Morphol., 35(4):1309Morphol., 35(4): -1315Morphol., 35(4): , 2017. SUMMARY:The purpose of the current research was to describe the location of mental foramen (MF) through digital panoramic radiographs in a Chilean population sample. A cross sectional study was carried out in which 500 radiographs taken at a university clinic in Temuco, Chile, were analyzed. Exclusion criteria were applied and the radiographs were analyzed by two previously calibrated examiners. The antero-posterior and supero-inferior positions of the MF were established in relation to longitudinal axes of premolars and the height of their apices, respectively. The distances from the center of the MF to the inferior margin of the mandible, the midline and the height of the dental apices were measured. In total, 163 radiographs were analyzed (93 female, 70 male). On both left and right sides, the MF was most commonly found between the longitudinal axes of premolars (58.49 % and 65.43 %) and below of the apices (94.34 % and 95.68 %), with no significant differences for sex and age. On the right side the mean distance to the inferior margin of the mandible (D1) was 11.87±1.46 mm; to the midline (D2) it was 24.46±2.99 mm and to the height of the apices (D3) it was 5.03±8.44 mm. On the left side the same distances were 11.98±1.62 mm, 25.85±2.87 mm and 4.09±2.21 mm respectively. In conclusions, the distances measured from the MF to anatomical landmarks are smaller in women, however significant differences were only found for D1 (right and left sides) and D3 (left side). D2 was the only distance found to diminish with age (left side).