Ultra-low frequency transcutaneous electric nerve stimulation does not affect the centric relation registration

Abstract

Concerning the variance, BM showed less variation at the X-axis. Long strip technique and R.O.C.A. wires varied less at the Y-axis. Long strip technique was again less variable at the Z-axis.

Study of the Difference Between Centric Occlusion and Retruded Contact Position

“…Chin point guidance and bimanual manipulation positioned condyle more inferior and posterior. De Bragança et al [14] using an mandibular tracking system obtained on average inferior and anterior condylar position of CR (bimanual manipulation and long strip technique system) compared to habitual occlusion. Results of the present study (Table 1 and 2) are opposite to study de Bragança et al [14] and Swenson et al [4], while superior condylar direction is in accordance with the study of Celar et al [8] and Linsen et al [12].…”

“…De Bragança et al [14] using an mandibular tracking system obtained on average inferior and anterior condylar position of CR (bimanual manipulation and long strip technique system) compared to habitual occlusion. Results of the present study (Table 1 and 2) are opposite to study de Bragança et al [14] and Swenson et al [4], while superior condylar direction is in accordance with the study of Celar et al [8] and Linsen et al [12]. Although superior condylar position corresponds to the last definition of the CR according to "The glossary of prosthodontic terms" [2], authors agree with Alvarez et al [10] that anterior, posterior or superior condylar direction is not the most important part of the definition.…”

“…With difference of the casts position to articulator axis and real patients terminal hinge axis, and articulators rigidity, certain differences between articulators condyle to condylar movements in patients are expected. Jaw tracking devices with six degrees of freedom are standardly used for investigation of temporomandibular joint function and morphology [12][13][14][15]. Obrez and Gallo [16] stated that only since the development of 3-dimensional recording systems supplemented with sophisticated mathema-tical transformation of the obtained data (six degrees of freedom concept) has it been possible to estimate condylar movements relatively accurately.…”

Annual review of selected scientific literature: A report of the Committee on Scientific Investigation of the American Academy of Restorative Dentistry

“…de Bragança et al 278 investigated if ultra-low frequency transcutaneous electric nerve stimulation affects centric relation registration. When evaluating the condylar position, one should consider that the influence of the dental contacts on the muscle function, which would naturally lead the jaw toward CR position, might be interrupted because of the presence of deflective contacts.…”

Annual review of selected scientific literature: A report of the Committee on Scientific Investigation of the American Academy of Restorative Dentistry

“…Interocclusal records Braganca et al 349 discussed the influence of neuromuscular deprogramming on the effect of interocclusal records in centric relation (CR). Many prosthetic, orthodontic, and occlusal treatments require the registration of the mandibular position and the transfer of that record to the casts on an articulator.…”