Journal Article Structure of a New Palatal Plate and the Artificial Tongue for Articulation Disorder in a Patient with Subtotal Glossectomy

Kozaki, Ken-ichi  ,  Kawakami, Shigehisa  ,  Konishi, Takayuki  ,  Ohta, Keiji  ,  Yano, Jitsuro  ,  Onoda, Tomoo  ,  Matsumoto, Hiroshi  ,  Mizukawa, Nobuyoshi  ,  Kimata, Yoshihiro  ,  Nishizaki, Kazunori  ,  Iida, Seiji  ,  Gofuku, Akio  ,  Abe, Masanobu  ,  Minagi, Shogo  ,  Okayama Dream Speech Project,

70 ( 3 )  , pp.205 - 211 , 2016-06 , Okayama University Medical School
A palatal augmentation prosthesis (PAP) is used to facilitate improvement in the speech and swallowing functions of patients with tongue resection or tongue movement disorders. However, a PAPʼs effect is limited in cases where articulation disorder is severe due to wide glossectomy and/or segmental mandibulectomy. In this paper, we describe speech outcomes of a patient with an articulation disorder following glossectomy and segmental mandibulectomy. We used a palatal plate (PP) based on a PAP, along with an artificial tongue (KAT). Speech improvement was evaluated by a standardized speech intelligibility test consisting of 100 syllables. The speech intelligibility score was significantly higher when the patient wore both the PP and KAT than when he wore neither (p=0.013). The conversational intelligibility score was significantly improved with the PP and KAT than without PP and KAT (p=0.024). These results suggest that speech function can be improved in patients with hard tissue defects with segmental mandibulectomy using both a PP and a KAT. The nature of the design of the PP and that of the KAT will allow these prostheses to address a wide range of tissue defects.

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