Musculoskeletal disorders in upper limbs in dental students: exposure level to risk factors

Authors

  • Patrícia Petromilli Nordi Sasso Garcia Araraquara School of Dentistry, UNESP
  • Camila Pinelli Araraquara School of Dentistry, UNESP
  • Juliana dos Reis Derceli
  • Juliana Álvares Duarte Bonini Campos Araraquara School of Dentistry, UNESP

DOI:

https://doi.org/10.20396/bjos.v11i2.8641448

Keywords:

Human engineering, Dentistry, Occupational health, students, dental

Abstract

Aim: This study assessed the risk factors of undergraduate students to develop musculoskeletal disorders (MSD) in the upper limbs, regarding gender, type of dental clinical procedure, mouth region treated, and the four-handed dentistry practice. Methods: Dental students enrolled in the 8th semester in the Araraquara School of Dentistry, UNESP, Brazil, were photographed while practicing 283 dental procedures. The Rapid Upper Limb Assessment (RULA) method was used to evaluate the working postures of each student. The photographs were evaluated and a final risk score was attributed to each analyzed procedure. The prevalence of risk factors of developing MSD was estimated by point and by 95% confidence interval. The association between the risk factor of developing disorders and variables of interest were assessed by the chi-square test with a significance level of 5%. Results: The risk factors of developing MSD were high, regarding most dental procedures performed by the undergraduate students (score 5: 7.07%, CI95%: 4.08- 10.06%; score 6: 62.54%, CI95%: 56.90-68.18%). There was no significant association between the RULA final score and gender (p=0.559), and type of dental procedure (p=0.205), and mouth regions by arch (p=0.110) or hemi-arch (p=0.560), and the use of four-handed dentistry (p=0.366). Conclusions: It can be concluded that gender, type of dental clinical procedure, mouth region treated, and practice of four-handed dentistry did not influence the risk of developing MSD in the upper limbs among the dental students evaluated; however, they are at a high risk of developing such disorders.

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Author Biographies

Patrícia Petromilli Nordi Sasso Garcia, Araraquara School of Dentistry, UNESP

DDS, MS, Adjunt Professor, Department of Community Dentistry, Araraquara School of Dentistry, UNESP – Univ Estadual Paulista, Araraquara, SP

Camila Pinelli, Araraquara School of Dentistry, UNESP

DDS, MS, Assistant Professor Doctor, Department of Community Dentistry, Araraquara School of Dentistry, UNESP – Univ Estadual Paulista, Araraquara, SP

Juliana dos Reis Derceli

DDS, Master student in Restorative Dentistry, Department of Restorative Dentistry, Ribeirão Preto School of Dentistry, USP – University of São Paulo, Ribeirão Preto, SP

Juliana Álvares Duarte Bonini Campos, Araraquara School of Dentistry, UNESP

DDS, MS, Adjunt Professor, Department of Community Dentistry, Araraquara School of Dentistry, UNESP – Univ Estadual Paulista, Araraquara, SP.

Published

2015-10-30

How to Cite

1.
Garcia PPNS, Pinelli C, Derceli J dos R, Campos J Álvares DB. Musculoskeletal disorders in upper limbs in dental students: exposure level to risk factors. Braz. J. Oral Sci. [Internet]. 2015Oct.30 [cited 2022Jan.23];11(2):148-53. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641448

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