ความสอดคล้องของเครื่องมืออย่างง่ายสำหรับประเมินการทำหน้าที่บดเคี้ยวเทียบกับการวัดสมรรถภาพการบดเคี้ยวด้วยวิธีร่อนตะแกรงและการวัดความสามารถการบดเคี้ยวด้วยการตอบแบบสอบถามในผู้สูงอายุ

Abstract

The study was a development of a simple tool for evaluating masticatory function value by wax biting test among older adults. This study aimed to find the correlation between a simple tool for evaluating masticatory function value with masticatory performance by sieve method and masticatory ability among older adults and using masticatory function value for evaluating subjects with different mastication groups. The samples were 100 older adults in the dental clinic of Lee Hospital, Lamphun, Thailand. Data was collected from October 2022 to September 2023. The samples were interviewed with general information, dental examination, tooth number, and occlusal pair. The wax biting test was given to samples, compared with the masticatory performance by the sieve method and the masticatory ability by the questionnaire. Data were analyzed using descriptive and analytical statistics. The results showed a high positive correlation between a simple tool for evaluating masticatory function value with masticatory performance by sieve method (correlation coefficient = 0.54) and masticatory ability by questionnaire (correlation coefficient = 0.636). The difference in the number of teeth in the sample (groups with fewer than 20 teeth and groups with 20 or more teeth), Occlusal pairs (groups with fewer than 10 occlusal pairs and groups with 10 or more occlusal pairs), and Eichner index classification have different masticatory function values. (p<0.05) The number of teeth, occlusal pair, and masticatory ability can predict masticatory function values (R =0.825; R2 =0.68; F =68.124; p-value<0.05). Masticatory groups divided by masticatory function value are related to masticatory groups divided by masticatory performance. (Chi-Square =8.243, p = 0.004) In conclusion, the simple tool created for evaluating masticatory function value by wax biting test among older adults can be used to measure masticatory function. It is a reliability tool. It is easy to use in the clinic, convenient and not complicated. It can used to differentiate masticatory function values in people with different mastication.