[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
:: Volume 24, Issue 4 (10-2012) ::
J Iran Dent Assoc 2012, 24(4): 181-186 Back to browse issues page
Ergonomic Evaluation of Work Conditions in Qazvin Dentists and its Association with Musculoskeletal Disorders Using REBA Method
Sakineh Varmazyar1, Morteza Amini *2, Mehdi Kiafar3
1- PhD student , Department of Occupational Health, School of Medicine, Tarbiat Modarres and faculty of Qazvin University of Medical Sciences. Qazvin, Iran
2- MS Student, Department of Occupational Health, School of Medicine, Tehran University of Medical Sciences. Tehran, Iran , M_Amini87@yahoo.com
3- Occupational Health Expert
Abstract:   (9144 Views)

  Background and Aim: Dynamic and static activities in dentistry, cause musculoskeletal disorders but dentists do not have enough awareness about effects of ergonomic factors on their health. T he aims of this study were to assess ergonomic conditions in dental workstation in Faculty of Dentistry, Qazvin University of Medical Sciences, using REBA method, to investigate the relationship between REBA scores and musculoskeletal disorders and finally, to present corrective solutions .

  Materials and Methods: In this cross-sectional study posture assessment of 63 participants were implemented by the REBA method. In order to investigate incidence of musculoskeletal disorders, the standard Nordic questionnaire was used. Data were processed using regression and chi-square tests and the significance level was determinate at P< 0.05 .

  Results: The results indicated that 30.2% of participants obtained from11 to 15 scores (very high risk level). Results of the Nordic questionnaire indicated that the highest musculoskeletal disorder report was related to neck region with 50.8 %.

  Conclusion: The results showed that 30.2% from the final REBA scores had very high risk level and 51.7% high risk level means that essential corrective and urgent corrective measures are required respectively .


Keywords: Dentistry, Musculoskeletal disorders, Questionnaire, Ergonomics
Full-Text [PDF 161 kb]   (4107 Downloads)    
Type of Study: Orginal | Subject: General
1. Soltanifard H. Prevent and treatment methods of spinal mechanical pains among dentist. To-day Dent. 2003; 19(2):25-28.
2. Bakhshi M, Shojaei M. Neck, back and shoulders pains investigation among general dentists and related factors. [Thesis]. Qazvin: Univ Med Sci; 2001-2002.
3. Finsen L, Christensen H, Bakke M. Musculo-skeletal disorders among dentists and variation in dental work. Applied Ergonomics 1998 Apr; 29 (2):119-125.
4. Finsen L. Biomechanical aspects of occupa-tional neck postures during dental work. Inter-national J Indust Ergonom. 1999 March; 23(2): 397-406.
5. Thornton L, Stuart-Buttle C, Wyszynski T, Wilson E. physical and psychosocial stress ex-posures in US dental schools: The need for ex-panded ergonomics training. Appl Ergonom. 2004 Mar; 35(2): 153-157.
6. Saremi M. Assessment of musculoskeletal disorders among dentistry of Shahed University, using REBA method and provide appropriate corrective methods. Occupational health field Master's. [Thesis]. Tehran: Faculty of Medical Sciences of University Tarbiat Modarres; 2003, No 49130.
7. Nasle Seraji J. Ergonomic evaluation of work-ing conditions dental practitioner's careers city of Birjand method (REBA). J Dent, Tehran Univ Med Sci. 2005; 18(1):61-67.
8. Mojabi B. Investigation neck, back and shoulders pains and ergonomics factors among general dentists of Qazvin University of Medi-cal Sciences. Iran First Inter Confer Ergonom. 2007: 408-411.
9. Pour Ghasemi A. Ergonomics features of workplace, quantitative and assessment meth-ods, 1th ed. Hamedan: Fanavaran Publisher; 2006.
10. Finsen L, Christensen A. A biomechanical Study of occupational loads in the shoulder and elbow in dentistry. Clin l Biomech. 1998June-Jully; 13(4-5):272-279.
11. Haddad O. Evaluation of anchor under chest muscle trapeze electromyography dentist's ac-tivities. Iran first Inter Conf Ergonom. 2007: 165-169.
12. Muodi MA, Choobine A. Ergonomics in ac-tion, 1thed. [S.L]; Center Publishing; 1999.
13. Tougas G, Nordin MC. Seat features rec-ommendations for work Stations. App Er-gonom. 1987 Sep; 18(3):207-210.
14. Mandal AC. Investigation of the lumber flexion of the seated man. Inter J Indust Er-gonom. 1991August; 8(1):75-87.
15. Valachi B, Valachi K. Mechanisms leading to musculoskeletal disorders in dentistry. J Amer Dent Assoc. (JADA). 2003Oct;134(10):1344-1350.
16. Khalid A, Wazzan. Back and neck problem among dentists and dental auxiliaries. J Contem Dent Prac. 2001 Summer; 2(3):17-30.
17. Osha. Job hazard analysis tools. Available at: http://www.officesafe.net/pdf/oshaergo.
Send email to the article author

Add your comments about this article
Your username or Email:


XML     Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Varmazyar S, Amini M, Kiafar M. Ergonomic Evaluation of Work Conditions in Qazvin Dentists and its Association with Musculoskeletal Disorders Using REBA Method. J Iran Dent Assoc 2012; 24 (4) :181-186
URL: http://jida.ir/article-1-1281-en.html

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 24, Issue 4 (10-2012) Back to browse issues page
Journal of Iranian Dental Association


This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly

Persian site map - English site map - Created in 0.05 seconds with 30 queries by YEKTAWEB 4538