Risk Factors of Musculoskeletal Disorders in Dental Students – A Qualitative Study

Presoto, Cristina Dupim; Wajngarten, Danielle; Garcia, Patrícia Petromilli Nordi Sasso

doi:10.9734/bjmmr/2016/30232

Cited by 15 publications

(31 citation statements)

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“…4,7 Despite these efforts, students were found to still have difficulty adopting the ergonomic posture taught in the ergonomics in dentistry course. 7,8 Garcia et al 7 found that the most common difficulties were associated with a lack of attention to and forgetfulness of ergonomic requirements, as well as difficulty in visualising the operating field and the type of procedure performed. Presoto et al 8 found that the most frequently reported problems associated with postural risk factors were limited operating field, repetitive movements, manual instruments, non-ergonomic instruments and lack of training.…”

Section: Discussionmentioning

confidence: 99%

Preclinical dental training: Association between difficulty in performing restorative procedures and the adoption of ergonomic posture

Neves

Viana

Wajngarten

et al. 2019

Eur J Dental Education

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Objective:The aim of this study was to determine any correlations between difficulty in performing restorative procedures and the adoption of ergonomic posture by dental students in a preclinical course. Methods:The sample was composed of second-year undergraduate students enrolled in the School of Dentistry of São Paulo State University (UNESP), Araraquara (n = 56). The data were collected from weekly records in which students who had participated in training in a preclinical restorative dentistry laboratory registered the difficulty they experienced performing given proposed preclinical procedures and adopting ergonomic posture (positioning of students' legs, thighs, spine, arms, and

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Section: Discussionmentioning

confidence: 99%

Preclinical dental training: Association between difficulty in performing restorative procedures and the adoption of ergonomic posture

Neves

Viana

Wajngarten

et al. 2019

Eur J Dental Education

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“…With this questionnaire, subjects can be screened for possible risk factors resulting from the contributions of those factors to musculoskeletal disorders. 24,25 The risk factors that appeared most frequently in the literature review and the focus group were used to adapt the original items or create new items. In the adaptation process, the three-factor structure (Repetitiveness, Work Posture, External Factors) proposed in previous dental studies was applied.…”

Section: Discussionmentioning

confidence: 99%

“…23 The second step was to conduct a focus group following the procedures proposed by Presoto et al and Gatti and performed with the same purpose. 24,25 The risk factors that appeared most frequently in the literature review and the focus group were used to adapt the original items or create new items.…”

Section: Discussionmentioning

confidence: 99%

“…Handling or grasping small objects/instruments 4. Because the dentist's work field is small, dark, full of shadows, and difficult to access, 24 lighting is essential for performing the work in an adequate posture. Difficulty supporting the hands when performing procedures 6.…”

Section: Table 1 Final Version Of Work Factors That May Contribute Tmentioning

confidence: 99%

“…23 Item 13 considers the lighting in the work environment. Because the dentist's work field is small, dark, full of shadows, and difficult to access, 24 lighting is essential for performing the work in an adequate posture. 4 If the work field is not adequately illuminated, dentists tend to tilt and twist the spine and/or neck toward the oral cavity.…”

Section: Final Version Of Work Factors That May Contribute To Muscumentioning

confidence: 99%

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Dental Students’ Perceptions of Risk Factors for Musculoskeletal Disorders: Adapting the Job Factors Questionnaire for Dentistry

Presoto

Wajngarten

Domingos

et al. 2018

Journal of Dental Education

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The aims of this study were to adapt the Job Factors Questionnaire to the field of dentistry, evaluate its psychometric properties, evaluate dental students' perceptions of work/study risk factors for musculoskeletal disorders, and determine the influence of gender and academic level on those perceptions. All 580 students enrolled in two Brazilian dental schools in 2015 were invited to participate in the study. A three-factor structure (Repetitiveness, Work Posture, and External Factors) was tested through confirmatory factor analysis. Convergent validity was estimated using the average variance extracted (AVE), discriminant validity was based on the correlational analysis of the factors, and reliability was assessed. A causal model was created using structural equation modeling to evaluate the influence of gender and academic level on students' perceptions. A total of 480 students completed the questionnaire for an 83% response rate. The responding students' average age was 21.6 years (SD=2.98), and 74.8% were women. Higher scores were observed on the Work Posture factor items. The refined model presented proper fit to the studied sample. Convergent validity was compromised only for External Factors (AVE=0.47), and discriminant validity was compromised for Work Posture and External Factors (r=0.69). Reliability was adequate. Academic level did not have a significant impact on the factors, but the women students exhibited greater perception. Overall, the adaptation resulted in a useful instrument for assessing perceptions of risk factors for musculoskeletal disorders. Gender was found to significantly influence all three factors, with women showing greater perception of the risk factors.

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The effect of Galilean magnification loupes on the visual acuity and working distance of dental students

Pazos,

dos Santos,

Dovigo

et al. 2024

Journal of Dental Education

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ObjectiveThis study aimed to evaluate the visual acuity and working distance of dental students using Galilean loupes at different magnification levels.MethodsThe participants included 50 undergraduate dentistry students selected from each class in the second to fifth years (N = 200) of São Paulo State University, School of Dentistry, Araraquara. The response variables were (i) the working distance between the operator's eyes and the mouth of the dental phantom head, and (ii) visual acuity. The independent variables were the five levels of the Galilean magnification system (naked eye, Galilean loupe simulator without magnification, and Galilean loupes with 2.5×, 3.0×, or 3.5× magnification) and academic year. Visual acuity was measured using a miniature Snellen eye chart inserted into the Class I cavities of the maxillary molars. After verifying the assumptions of normality and sphericity, a mixed repeated measures analysis was performed (α = 0.05).ResultsStatistical significance was found between the “magnification system” and “academic year” for visual acuity (p < 0.001). For the second‐, fourth‐, and fifth‐year participants, there were no significant differences in visual acuity between the naked eye and different magnifications of the Galilean loupes, which were superior to and significantly different from that of the loupe simulator. For the working distance, statistical significance was observed in the interaction between “magnification system” and “academic year” (p = 0.008). For the third‐, fourth‐, and fifth‐year participants, there was no significant difference in the working distance between the naked eye and different magnifications of the Galilean loupes, which were superior to and significantly different from that of the simulator.ConclusionIt was concluded that the different magnification levels of the Galilean loupes did not influence the visual acuity or distance between the eyes of the operator and the mouth of the dental phantom head in the evaluated students.

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Risk Factors of Musculoskeletal Disorders in Dental Students – A Qualitative Study

Cited by 15 publications

References 0 publications

Preclinical dental training: Association between difficulty in performing restorative procedures and the adoption of ergonomic posture

Preclinical dental training: Association between difficulty in performing restorative procedures and the adoption of ergonomic posture

Dental Students’ Perceptions of Risk Factors for Musculoskeletal Disorders: Adapting the Job Factors Questionnaire for Dentistry

The effect of Galilean magnification loupes on the visual acuity and working distance of dental students

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