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Evaluation of articulation simulation system using artificial maxillectomy models.

M E Elbashti¹, M Hattori¹, Y I Sumita¹

¹Department of Maxillofacial Prosthetics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.

Journal of Oral Rehabilitation

|May 16, 2015

Summary

This summary is machine-generated.

This study developed an articulation simulation system to analyze speech changes caused by maxillectomy defects. The system aids surgeons and prosthodontists in planning maxillofacial rehabilitation and improving patient outcomes.

Keywords:

Aramany's classification acoustic analysis articulation simulation system formant magnetic resonance imaging maxillectomy

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Area of Science:

Biomedical Engineering
Speech Science
Maxillofacial Surgery

Background:

Acoustic evaluation is crucial for managing maxillofacial defects and assessing obturator prosthesis rehabilitation effectiveness.
Speech function analysis pre- and post-operatively is vital for surgical planning.

Purpose of the Study:

To evaluate acoustic characteristics of voice using an articulation simulation system with vocal tract models, including artificial maxillectomy defects.
To establish a speech simulation system for maxillectomy defect models for surgeons and prosthodontists in treatment planning.

Main Methods:

Artificial maxillectomy defects (Aramany's Classes I-VI) were created in a 3D vocal tract model.
Acoustic analysis of formant and nasalance was performed using Computerized Speech Lab and Nasometer.

Main Results:

The simulation system successfully detected and analyzed formant and nasalance for simulated /a/ sounds.
Non-defect model: Formants 1 & 2 were 675.43 Hz & 976.64 Hz; Nasalance was 11%.
Defect models: Median Formants 1 & 2 were 634.36 Hz & 1026.84 Hz; Median Nasalance was 28%.

Conclusions:

The articulation simulation system can effectively analyze acoustic changes in maxillectomy defects.
This system can assist surgeons and prosthodontists in planning maxillofacial rehabilitation for improved outcomes.