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Objectives : The purpose of the research is to measure Dental Hygiene students` level of musculoskeletal pain before and after receiving scaling training which involves repetitive operations and examine effects the operations have on the students` grip and pinch strength. Methods : 15 subjects in Dental Hygiene at Y university located in Chungbuk were tested on November 2, 2011. Results : 12 students had a musculoskeletal pain before receiving scaling training. However, all the 15 students had a musculoskeletal pain after the training. Body part the largest number of the students complained of the pain on was shoulders(37.9%) followed by neck(20.8%), waist(13.9%), wrists(10.3%), then back(6.9%) before receiving the training. Then the result showed that shoulders are where the largest number of students(24.1%) felt the pain, followed by neck(17.2%), wrists and fingers(13.8%), waist(12.1%), back and lower arms(6.9%), then palms(5.2%) after the training. Visual Analogue Scale(VAS) increased to after receiving the training from and this shows statistically significant difference(p from after receiving the training and this shows statistically significant difference(p to , key pinch from to , and tripod pinch from to . Conclusions : The result showed that scaling training has effects on Dental Hygiene students` musculoskeletal subjective symptoms and their grip and pinch strength changes after receiving the training.

Comparison analysis of before and after scaling training on grip and pinch strength