Abstract
요약
1. Introduction
2. Study Methods
2.1 Subjects and oral cavity regions
2.2 Study equipment
2.3 Study procedure
2.4 Statistical analysis method
3. Study Results
3.1 Demographics
3.2 Difference in the dental hygienist’s cervical flexion by the change in the patient’s (mannequin’s) head angle
3.3 Difference in the dental hygienist’s upper trapezius muscle activity by the change in the patient’s (mannequin’s) head angle
4. Considerations
5. Limitations of the Study
6. Conclusion
REFERENCES