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International journal of odontostomatology

versión On-line ISSN 0718-381X

Resumen

FUENTES, Ramón et al. Determination of Intraoral Pressures on Biofunctional Compartments in Edentulous Patients. Int. J. Odontostomat. [online]. 2014, vol.8, n.2, pp.151-157. ISSN 0718-381X.  http://dx.doi.org/10.4067/S0718-381X2014000200001.

The aim was to describe the different intraoral pressures that occur in the vestibular interocclusal space (IOS) and subpalatal space (SPS) under different oral functions in adult patients with maxillary edentulism. A descriptive and cross-sectional study was conducted. We selected 15 patients at the Dental Clinic of the Dentistry Faculty (CODA), Universidad de la Frontera (Temuco, Chile). Intraoral pressure measurement was performed using a digital manometer GMH 3156, by methods of cannulas (control) and oral shield. A calibration measurement was made for 15 minutes; then four functional measurements were performed: B1 (open-mouth condition, 0-25 s), B2 (semi-open compartment condition, 35-85 s), B3 (closed compartments condition; 95-145 s) and B4 (swallowing, 150-165 s). With the oral shield, the B1 phase in the IOS showed a constant pressure between 0-4 mBar and SPS between ­1 and ­3 mBar. In B2 phase, the IOS reached 10 mBar and SPS between 0 and ­1 mBar . Phase B3 OIS oscillations showed between 0 and 20 mBar, and the SPS increased to 20 mbar. In B4 phase, the IOS showed a peak of 40 mbar, while the SPS showed a peak from 20 to ­140 mbar. The formation of two closed compartments with negative intra-oral pressure also occurs in edentulous patients, where the SPS shows greater negative pressure changes than IOS. Regular patterns of intra-oral pressure in biofunctional compartments were observed in over 50% of cases.

Palabras clave : edentulous patients; intra-oral pressure; negative pressure; biofunctional model; functional intra-oral compartments.

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