Study on the design of complete denture for mastication and swallowing

2014 Fiscal Year Final Research Report

• Project/Area Number: 24592920
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthetic dentistry
• Research Institution: The University of Tokushima
• Principal Investigator: NAGAO Kan 徳島大学, ヘルスバイオサイエンス研究部, 准教授 (30227988)
• Co-Investigator(Kenkyū-buntansha): HONGAMA Seiko 徳島大学, 病院, 診療支援医師 (60380078)
• Research Collaborator: TOUKO Sachie ; HONDA Tsuyoshi ; BABA Takurou ; FUJIMOTO Keiko
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 無歯顎高齢者 / 摂食嚥下 / 咬合高径 / 臼歯人工歯排列 / 口蓋形態

Outline of Final Research Achievements

Function of processing the bolus and transportation the water to the pharynx were declining as tongue pressure to palate was decreased by 4 mm increasing of occlusal vertical dimension. On the other hand, function of transportation the saliva to the pharynx were declining, but no significant different was found in processing the bolus by 3 mm narrowing of the width of dental arch.
From the above, mastication and swallowing are affected by the denture form. Inappropriate form of denture disturbs a transportation the bolus to the pharynx and risk of aspiration pneumonia may be increased as the function of the tongue is declines in extreme aged people. It is very important to consider not only the mastication and esthetics but also swallowing in denture fabrication.

Free Research Field

医歯薬学