Finding The Most Effective meprobamate Is Not A Worry

It can be adjusted upto 12�C15?mm in anteroposterior according to the patient's comfort, speech and resonance modification. For vertical adjustment, the screw can be completely opened and two plates can be adjusted as per the requirement (figures 6 and ?and77). Figure?4 Standard orthodontic expension screw. Figure?5 Palatal lift prosthesis with key. Figure?6 Vertical adjustment of prosthesis. Figure?7 Intraoral view of palatal lift prosthesis. The patient was referred to the department of speech therapy to assess the speech outcome before and after wearing the prosthesis. Three speech analyses tests were carried out. Perceptual analysis��This test evaluated the intelligibility and resonance rating before and after the insertion of the prosthesis. While measuring the intraoral pressure with restricted soft palate movement in pronouncing pressure meprobamate consonants like /pa/, the air predominantly passes through the nose. On the insertion of the prosthesis, expired air passes through both the nose and the mouth. Without prosthesis, the perceptual analyses was 0��poor; and with prosthesis it was1��fair (tables 1 and ?and22). Table?1 Perceptual analysis Table?2 Resonance rating Acoustic analysis��It evaluated the formant frequency estimation for vowels /a/, /i/, /u/, before and after the insertion of prosthesis. Although most explosives were not clear before placement, insertion of palatal lift prosthesis permitted clear pronunciation of /p/ and /t/. There was also some improvement in the pronunciation of /k/, /b/ and /d/ (table 3). Table?3 Acoustic analysis (Formant frequency values in Hz) Spectrogram/wideband��It was built from a sequence of spectra by stacking them together in time and by compressing the amplitude axis into a ��contour map�� drawn in a grey scale. Words from the Hindi articulation test were used. The graph shows time along the horizontal axis, frequency along the vertical axis and the amplitude of the signal at any given time and frequency is shown as a grey level. Conventionally, black is used to signal the most energy, while white is used to signal the least (figures 8 and ?and99).14�C16 Figure?8 Spectrogram without palatal lift prosthesis. Figure?9 Spectrogram with palatal lift prosthesis. Outcome and follow-up The patient was recalled every 6?months and sent for speech analysis. Speech tests showed satisfactory results. Discussion Palatal lift prosthesis is used for patients with adequate palatal tissue, but poor control of velopharyngeal movements. It is currently considered as the only effective prosthesis for the management of velopharyngeal incompetence. It has two components��palatal section and palatopharyngeal section. The palatal section is securely retained by the teeth while palatopharyngeal part physically raises the soft palate.