The association between restorative pre-clinical activities and musculoskeletal disorders

Authors

  • P. A. Corrocher,

    1. Department of Social Dentistry, Araraquara Dental School, UNESP, Univ Estadual Paulista, Araraquara, Brazil
    Search for more papers by this author
  • C. D. Presoto,

    1. Department of Restorative Dentistry, Araraquara Dental School, UNESP, Univ Estadual Paulista, Araraquara, Brazil
    Search for more papers by this author
  • J. A. D. B. Campos,

    1. Department of Social Dentistry, Araraquara Dental School, UNESP, Univ Estadual Paulista, Araraquara, Brazil
    Search for more papers by this author
  • P. P. N. S. Garcia

    Corresponding author
    1. Department of Social Dentistry, Araraquara Dental School, UNESP, Univ Estadual Paulista, Araraquara, Brazil
    • Correspondence

      Patrícia P. N. S. Garcia

      Department of Social Dentistry

      Araraquara Dental School

      UNESP

      Univ Estadual Paulista

      Rua Humaitá 1680, Centro

      Araraquara CEP: 14.801-903, Brazil

      Tel: +55 16 3301 6405

      Fax: +55 16 3301 6343

      e-mail: psgarcia@foar.unesp.br

    Search for more papers by this author

Abstract

Objective

To evaluate the risk of development of musculoskeletal disorders in the upper limbs of undergraduate dentistry students during the execution of pre-clinical laboratory activities based on gender, type of dental procedure and area of the mouth under treatment.

Methods

Male and female undergraduate students in the second year of the Araraquara Dental School, UNESP, were enrolled in this study. Digital photographs were obtained whilst the subjects performed laboratory activities. The working postures adopted by each student were evaluated using the Rapid Upper Limb Assessment (RULA). The photos were analysed by a calibrated researcher (k = 0.89), and a final risk score was attributed to each analysed procedure (n = 354). Descriptive statistical analyses were performed, and the associations of interest were analysed by the chi-square test (P = 0.05).

Results

During most of the laboratory procedures performed, the risk of developing musculoskeletal disorders was high (64.7%; – IC95%: 59.7-69.7%), with no significant association between the RULA final score and gender (χ2 = 1.100; P = 0.577), type of dental procedure (χ2 = 5.447, P = 0.244) and mouth area treated (χ2=4.150; P = 0.126).

Conclusions

The risk of developing musculoskeletal disorders was high in undergraduate dentistry students; this risk was not related to gender, type of dental procedure and region of the mouth being treated.

Ancillary