Journal of the Medical Association of Thailand Vol 92, No 12:DECEMBER 2009 (SUPPL.7) 0125-2208 92 12 2009 Dec Factors Related to Performance Effectiveness of Dental Nurse in Primary Care Unit in the Northeastern Part of Thailand 36 EN Saowaluk Wijaranaphiti Peera Krugkrunjit Bhusita Intaraprasong Original Article To investigate the relationships between job characteristics, motivation, role stress andperformance effectiveness of dental nurses in primary care units in the northeastern part of Thailand. A explanatory cross-sectional study was conducted in 326 dental nurses who wereworking in 310 PCUs of 19 provinces, 220 amphurs in the northeastern part of Thailand were taken as thestudy samples. Data were collected by using questionnaires. Pearson’s Product Moment Correlation wasapplied to test between job characteristic model, motivation, role stress and performance effectiveness. The analysis showed that there was no relationship between job characteristics model andperformance effectiveness as performing dental task needed ‘dealing with others’ and ‘task significance’.There was a positive relationship between motivation and performance effectiveness at a low level. Role stresswas not related to performance effectiveness; however, when the dental nurse had more stress caused by roleconflict internal standard, several roles and their performance effectiveness was reduced. From the research result, it is necessary to help construct networks of dental tasks and otherpublic health tasks in obvious forms, for some feedback from agents. Work allocation should be preciselyarranged and professional skill should be determined responsibility. Lastly, recruiting dental nurses withproper characteristics in primary care units in the northeastern part of Thailand is crucial as well. Job characteristics model Motivation Role stress Performance effectiveness