Abstract

MALDONADO MORENO, Juan Antonio et al. Assessment of two techniques for the recording of mandibular central relationship: gothic arch versus power centric relation. Rev. Odont. Mex [online]. 2015, vol.19, n.1, pp.15-26. ISSN 1870-199X.

The search for the true mandibular position with respect to the glenoid fossa and the relationship of the other components which constitute the temporomandibular joint known as centric relation (CR) are essential factors for its diagnosis, treatment and stability. The aim of the present study was to assess two techniques used for recording CR: power centric technique and gothic arch technique, with the purpose of determining the most effective method to confer greater accuracy to the recording. This was triggered by the fact that in our institution some inconsistencies had been detected when taking records of patients afflicted with considerable skeletal discrepancies or malformations. Fifteen healthy skeletal class II patients were assessed. Patients' ages ranged from 13 to 17 years. Eight patients were female (53.4%) and seven male (46.6%). Using both techniques, thirty mountings were performed in a semi-adjustable articulator, condylar changes were monitored using axial condylar position indicator (API). Results revealed no significant differences, nevertheless, observed transversal, vertical and saggital changes were greater with the gothic arch technique.

Keywords : Centric relation; gothic arch; centric power relation.

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