search for




 

Prevalence and Risk Factors of Neck Musculoskeletal Disorders among Dental Hygienist
Int J Clin Prev Dent 2018;14(3):190-196
Published online September 30, 2018;  https://doi.org/10.15236/ijcpd.2018.14.3.190
© 2018 International Journal of Clinical Preventive Dentistry.

Ka-Yeon Lee1, Jong-Ae Chun2

1Department of Dental Hygiene, Ulsan College, Ulsan, 2Department of Dental Hygiene, Kyungwoon University, Gumi, Korea
Correspondence to: Jong-Ae Chun
Department of Dental Hygiene, Kyungwoon University, 730 Gangdong-ro, Sandong-myeon, Gumi 39160, Korea. Tel: +82-54-479-4066, Fax: +82-54-479-4066, E-mail: belllove01@hanmail.net
https://orcid.org/0000-0002-5656-5807
Received August 27, 2018; Revised September 17, 2018; Accepted September 18, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Objective: The purpose of this study was to investigate the prevalence and risk factors of neck musculoskeletal disorders in dental hygienists.
Methods: A questionnaire survey was conducted on 266 dental hygienists currently working at the dental clinics in Busan.
Results: Work intensity of the subjected dental hygienists considered as high with over 8 daily working hours (59.0%), six weekly working days (57.9%), and executing night duty (77.8%). Among 256 cases excluding 10 subjects who had the past history, 180 cases (70.3%) had subjective pain and 80 cases (44.4%) of the 180 cases had pain sustained over one week, and the prevalence of neck musculoskeletal symptoms according to National Institute of Occupation Safe for Health /Korean Occupational Safety and Health Agency criteria was 124 cases (48.4%). The prevalence were significantly higher in case of over 8 daily working hours (53.7%) than under 8 hours (41.3%) (p=0.065), over 45 degree neck bending (55.0%) than under 45 degree (35.3%) (p=0.005), both neck inclined or tilted (63.8%) than either one (p=0.024), and more fixed posture (53.3%) than rather free (39.6%) (p=0.048). As result of multiple logistic regression analysis, over 45 degree neck flexion (odds ratio [OR]=1.87, 95% confidence interval [CI]=1.06-3.30) and fixed posture (OR=1.93, 95% CI=1.01-3.68) significantly affected the neck musculoskeletal disorders.
Conclusion: In summary, in order to decrease the risk of neck musculoskeletal disorders among dental hygienist, correct the habitual neck bending and tilting behaviors would be strengthened and a proper guide that efficiently release the state of bending and keeping fixed state would be needed.
Keywords : dental hygienist, musculoskeletal diseases, neck, prevalence, risk factor
References
  1. Hales TR, Sauter SL, Peterson MR, Fine LJ, Putz-Anderson V, Schleifer LR, et al. Musculoskeletal disorders among visual display terminal users in a telecommunications company. Ergonomics 1994;37:1603-21.
    Pubmed CrossRef
  2. Macdonald G. Hazards in the dental workplace. Dent Hyg (Chic) 1987;61:212-8.
  3. Booyens SJ, van Wyk PJ, Postma TC. Musculoskeletal disorders amongst practising South African oral hygienists. SADJ 2009;64:400-3.
    Pubmed
  4. Sartorio F, Vercelli S, Ferriero G, D'Angelo F, Migliario M, Franchignoni M. Work-related musculoskeletal diseases in dental professionals. 1. Prevalence and risk factors. G Ital Med Lav Ergon 2005;27:165-9.
    Pubmed
  5. Sanders MJ, Turcotte CM. Occupational stress in dental hygienists. Work 2010;35:455-65.
    Pubmed
  6. Anton D, Rosecrance J, Merlino L, Cook T. Prevalence of musculoskeletal symptoms and carpal tunnel syndrome among dental hygienists. Am J Ind Med 2002;42:248-57.
    Pubmed CrossRef
  7. Morse T, Bruneau H, Dussetschleger J. Musculoskeletal disorders of the neck and shoulder in the dental professions. Work 2010;35:419-29.
    Pubmed
  8. Hayes MJ, Smith DR, Cockrell D. Prevalence and correlates of musculoskeletal disorders among Australian dental hygiene students. Int J Dent Hyg 2009;7:176-81.
    Pubmed CrossRef
  9. Kim DS, Bae SD, Mun MG, Kim CH. Criteria for classification of flexion angle for the assessments of posture by observation methods. J Ergon Soc Korea 2007;11:126-31.
  10. Cha JH, Ryu TB, Choi HS, Lee JB, Kim MK, Jung MK, et al. Survey of musculoskeletal disorders in Korean dentists. J Ergon Soc Korea 2007;26:137-47.
    CrossRef
  11. Jung WG. Foundamentals of periodontal instrumentation & advanced root instrume. 5th ed. Seoul: Dhpub; 2006.
  12. USA Department of Labor. Ergonomics enforcement & inspections [Internet]. Washington: USA Department of Labor [cited 2013 Mar 10].
  13. Jung CH, Cha JH, Ryu TB, Choi HS, Chung MK, Lee JB, et al. A survey on the musculoskeletal diseases of a dentist in Seoul using a standardized questionnaire. J Ergon Soc Korea 2006;10:168-74.
  14. Oberg T, Oberg U. Musculoskeletal complaints in dental hygiene:a survey study from a Swedish county. J Dent Hyg 1993;67:257-61.
    Pubmed
  15. Abiodun-Solanke IM, Agbaje JO, Ajayi DM, Arotiba JT. Prevalence of neck and back pain among dentists and dental auxiliaries in South-Western Nigeria. Afr J Med Med Sci 2010;39:137-42.
    Pubmed
  16. Kim JK, Lee SJ. Effect of stretching exercise as work-related musculoskeletal pain of neck and shoulder. J Phys Educ 2004;43:655-62.
  17. Lee SY, Yu BC, Urm SH, Kwun HS, Park JH, Kim JB, et al. Relationship between musculoskeletal symptom and work-related factors in dental hygienists. J Korean Acad Oral Health 2011;35:486-96.
  18. Choi MG, Choi SB, Cha SE. A survey on the subjective symptoms and risk factors of musculoskeletal disorders in dentists. J Kor Soc Saf 2006;21:106-15.
  19. Smith CA, Sommerich CM, Mirka GA, George MC. An investigation of ergonomic interventions in dental hygiene work. Appl Ergon 2002;33:175-84.
    CrossRef
  20. Maillet JP, Millar AM, Burke JM, Maillet MA, Maillet WA, Neish NR. Effect of magnification loupes on dental hygiene student posture. J Dent Educ 2008;72:33-44.
    Pubmed


September 2018, 14 (3)