Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add more filters











Language
Publication year range
1.
J Appl Oral Sci ; 24(5): 472-480, 2016.
Article in English | MEDLINE | ID: mdl-27812617

ABSTRACT

OBJECTIVE: Since the tongue is the oral structure responsible for mastication, pronunciation, and swallowing functions, patients who undergo glossectomy can be affected in various aspects of these functions. The vowel /i/ uses the tongue shape, whereas /u/ uses tongue and lip shapes. The purpose of this study is to investigate the morphological changes of the tongue and the adaptation of pronunciation using cine MRI for speech of patients who undergo glossectomy. MATERIAL AND METHODS: Twenty-three controls (11 males and 12 females) and 13 patients (eight males and five females) volunteered to participate in the experiment. The patients underwent glossectomy surgery for T1 or T2 lateral lingual tumors. The speech tasks "a souk" and "a geese" were spoken by all subjects providing data for the vowels /u/ and /i/. Cine MRI and speech acoustics were recorded and measured to compare the changes in the tongue with vowel acoustics after surgery. 2D measurements were made of the interlip distance, tongue-palate distance, tongue position (anterior-posterior and superior-inferior), tongue height on the left and right sides, and pharynx size. Vowel formants Fl, F2, and F3 were measured. RESULTS: The patients had significantly lower F2/Fl ratios (F=5.911, p=0.018), and lower F3/F1 ratios that approached significance. This was seen primarily in the /u/ data. Patients had flatter tongue shapes than controls with a greater effect seen in /u/ than /i/. CONCLUSION: The patients showed complex adaptation motion in order to preserve the acoustic integrity of the vowels, and the tongue modified cavity size relationships to maintain the value of the formant frequencies.


Subject(s)
Glossectomy/rehabilitation , Speech/physiology , Tongue/pathology , Tongue/physiopathology , Adult , Analysis of Variance , Anatomic Landmarks , Case-Control Studies , Female , Humans , Magnetic Resonance Imaging, Cine , Male , Middle Aged , Neoplasm Staging , Pharynx/pathology , Pharynx/physiopathology , Postoperative Period , Reference Values , Retrospective Studies , Speech Acoustics , Tongue Neoplasms/pathology , Tongue Neoplasms/physiopathology , Tongue Neoplasms/surgery , Treatment Outcome
2.
J. appl. oral sci ; J. appl. oral sci;24(5): 472-480, Sept.-Oct. 2016. tab, graf
Article in English | LILACS, BBO - Dentistry | ID: lil-797978

ABSTRACT

ABSTRACT Objective Since the tongue is the oral structure responsible for mastication, pronunciation, and swallowing functions, patients who undergo glossectomy can be affected in various aspects of these functions. The vowel /i/ uses the tongue shape, whereas /u/ uses tongue and lip shapes. The purpose of this study is to investigate the morphological changes of the tongue and the adaptation of pronunciation using cine MRI for speech of patients who undergo glossectomy. Material and Methods Twenty-three controls (11 males and 12 females) and 13 patients (eight males and five females) volunteered to participate in the experiment. The patients underwent glossectomy surgery for T1 or T2 lateral lingual tumors. The speech tasks “a souk” and “a geese” were spoken by all subjects providing data for the vowels /u/ and /i/. Cine MRI and speech acoustics were recorded and measured to compare the changes in the tongue with vowel acoustics after surgery. 2D measurements were made of the interlip distance, tongue-palate distance, tongue position (anterior-posterior and superior-inferior), tongue height on the left and right sides, and pharynx size. Vowel formants Fl, F2, and F3 were measured. Results The patients had significantly lower F2/Fl ratios (F=5.911, p=0.018), and lower F3/F1 ratios that approached significance. This was seen primarily in the /u/ data. Patients had flatter tongue shapes than controls with a greater effect seen in /u/ than /i/. Conclusion The patients showed complex adaptation motion in order to preserve the acoustic integrity of the vowels, and the tongue modified cavity size relationships to maintain the value of the formant frequencies.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Pharynx/pathology , Speech/physiology , Tongue/physiopathology , Tongue/pathology , Glossectomy/rehabilitation , Pharynx/physiopathology , Postoperative Period , Reference Values , Speech Acoustics , Tongue Neoplasms/surgery , Tongue Neoplasms/physiopathology , Tongue Neoplasms/pathology , Case-Control Studies , Retrospective Studies , Analysis of Variance , Treatment Outcome , Magnetic Resonance Imaging, Cine , Anatomic Landmarks , Neoplasm Staging
SELECTION OF CITATIONS
SEARCH DETAIL