Risk factors of musculoskeletal disorders in dental postgraduates:A survey on occupational hazard
10.3969/j.issn.1001-3733.2014.02.016
- VernacularTitle:骨骼肌系统疾患（MSD）在口腔医学研究生中的调查及危险因素分析
- Author:
Xiangxiang HU
;
Xuelian TAN
;
Jiali NING
;
Jian PAN
- Publication Type:Journal Article
- Keywords:
Occupational disease;
Musculoskeletal disorder;
Dental student
- From:
Journal of Practical Stomatology
2014;(2):218-222
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the risk factors of musculoskeletal disorders(MSDs)in dental postgraduates.Methods:271 dental postgraduates majoring in five different specialties(orthodontics,prosthodontics,endodontics,periodontics and alveolar surgery) with average (2.78 ±1 .57)years of clinical practice were recruited.254 age-matched non-dental postgraduates were served as the controls.The standardized Nordic questionnaire on MSDs and a self-report questionnaire regarding correlative factors were answered. Reliability of the responses was assessed by applying test-retest method.Results:The test-retest method revealed a high reliability of participants'answers with the intraclass correlation coefficient ranging from 0.89 to 0.96.Dental postgraduates had significantly higher incidence (85.6%)of MSDs than the controls(70.4%).In all included dental specialties,high prevalence of MSDs was reported at neck (47.5%-69.8%),followed by shoulders (50.8%-65.1 %),lowerback (27.1 %-51 .2%)and upper back (25.6%-46.5%).Meanwhile,the high prevalence of MSD varied in different specialties.Year of clinical work,clinical hours per week and desk hours per week were found to be the risk factors for MSDs,whereas physical exercise and rest were protective factors.Conclu-sion:MSDs with high prevelence and distinct specialty-related characteristics initiate at the early stage of dental career.Relevant measures to prevent and protect against MSDs should be taken during school-days.
