2022 Fiscal Year Final Research Report
Establishment of evaluation method of oral function standard of children using ultrasonic echo system
| Project/Area Number |
19K10453
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 57080:Social dentistry-related
|
|---|
| Research Institution | Showa University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
石崎 晶子 昭和大学, 歯学部, 講師 (00710386)
村田 尚道 昭和大学, 歯学部, 兼任講師 (10407546)
渡邊 裕 北海道大学, 歯学研究院, 准教授 (30297361)
林 佐智代 (三田村佐智代) 日本大学, 松戸歯学部, 講師 (40343579)
佐藤 秀夫 鹿児島大学, 医歯学域鹿児島大学病院, 講師 (40507125)
|
|---|
| Project Period (FY) |
2019-04-01 – 2023-03-31
|
| Keywords | 口腔機能 / 摂食機能 / 咬筋 / 発達不全 / 咀嚼 |
|---|
| Outline of Final Research Achievements |
There are many unknowns the actual condition of Developmental Insufficiency of Oral Function. We have focused on elucidating the causative pathology of this disease by using electromyography to characterize the mastication movements of subjects.
The subjects were 42 (17 boys and 25 girls) out of 96 children attending nursery school who were 5 years old or older and who gave consent to chew gum. Based on the diagnostic criteria, the children were classified into 16 with Developmental Insufficiency of Oral Function and 26 without. Masticatory muscle activity was analyzed using a small surface electromyograph, and the muscle activity of the masseter muscle was recorded during 60 free chewing of chewing gum.
It is thought that the muscle activity of masseter muscle in the group of Developmental Insufficiency of Oral Function is low and the muscle activity during mastication may be weak and the mastication efficiency may be low, probably because of the long mastication interval.
|
| Free Research Field |
口腔衛生学
|
| Academic Significance and Societal Importance of the Research Achievements |
上手に食べられない子供が増加している.今回の研究により, 上手に噛めない幼児は咬筋の筋活動量が少なく,咀嚼間隔が長いことが分かった. すなわち, 咀嚼時筋活動が弱いために, 咀嚼能率が低い事が示された.また, 筋活動の左右差もみられたため, 上手に食べるためには, バランスの良い咀嚼と, リズム形成が重要である事がわかった.
|
