SUMMARY:The aim of this study was to analyze the anatomotopographic location of the mandibular foramen in the right and left ramus, and to verify the influence of the amount of dental alveoli on the foramen position. Thirty-five adult dry human mandibles of Araraquara Dental School, UNESP -São Paulo State University were assessed, with or without dental alveoli. Measurements were obtained, using a ruler and a digital caliper. The following distances were measured: FI -distance between the lowest point of the mandibular incisure and the mandibular foramen (F point); FB -distance between the mandibular base and F point; FP -distance between the posterior margin of the ramus and F point; FA -distance between the anterior margin of the ramus and F point; FT -distance between the apex of the retromolar trigone and F point. The Mann-Whitney test was used to compare each measurement according to hemi-arch, and the Kruskal-Wallis test was used to analyze the influence of the presence of alveoli on the measures. For multiple comparison, Dunn's method was used. There was no statistically significant difference in the location of the mandibular foramen when compared to the right and left hemi-arches. The amount of dental alveoli influenced, significantly, only on FA and FP distances. Thus, it was concluded that the right and left mandibular ramus showed symmetry in the location of the mandibular foramen, and the amount of alveoli influenced on the distances of the anterior and posterior margins of the mandibular ramus, in relation to the mandibular foramen.

ObjectivesTo identify alternatives for radiographers’ postures while performing mammography that can contribute to reduce the risk of work-related musculoskeletal disorders (WRMSDs).MethodsRadiographers’ postures to positioning craniocaudal (CC) and mediolateral oblique (MLO) views were simulated without any intervention for three scenarios: radiographer/patient with similar statures, radiographer smaller than patient and radiographer taller than patient. Actions were taken to modify the postures: seated radiographer; patient on a step; seated patient; radiographer on a step. All the postures were analysed using kinovea 0.8.15 software and the angles were measured twice and classified according to European standard EN1005–4: 2005.ResultsThe non-acceptable angles were measured mainly during MLO positioning when radiographer was taller than the patient: 139° and 120° for arm-flexion and abduction, 72° for trunk and −24° for head/neck-flexion. The introduction of alternative postures (radiographer seated), allowed improvements in posture (60° and 99° for arm flexion and abduction, 14° for trunk and 0° for head/neck flexion), being classified as acceptable.ConclusionsThe alternative postures simulated have the potential to reduce the risk of developing WRMSDs when radiographers and patients have different statures.Main messages• Radiographers’ postures in mammography can contribute to work-related musculoskeletal disorders • Non-acceptable posture was identified for MLO breast positioning (radiographer taller than patient) • Adapting posture to patient biotype reduces the WRMSD risk for radiographers

Introduction: Screening and early diagnosis are crucial strategies for the detection of breast cancer. In Brazil, the Ministry of Health recommends annual clinical screening in women over 40 years of age, with the addition of biennial mammography for those aged between 50 and 69 years. However, high-risk patients should have mammography annually after the age of 35 years. Objectives: To study the reasons for mammography screening in the age group 50 to 69 years. Method: This is an ecological study of the number of patients per mammography report according to age group, from 2015 to 2019. Data from the Cancer Information System (Sistema de Informação do Câncer – SISCAN) were obtained from the Technology Department of the public health system (Departamento de Informática do Sistema Único de Saúde – DATASUS). Results: When comparing data from the Breast Cancer Information System (Sistema de Informação do Câncer de Mama – SISMAMA) from 2015 to 2019, we found 8,569,457 mammographies, of which 5,216,473 were performed in women aged 50 years to 69 years, which corresponds to 60.87% of the procedures. In addition, 4.90% of these women were high-risk individuals, and 1.24% had been treated for breast cancer. Mammography reports showed that 12.01% of the results were inconclusive, 38.28% were normal, 46.12% had a benign radiological finding, 2.58% had a probably benign finding, 0.78% had a suspicious finding, 0.14% had a highly suspicious finding, and 0.04% had malignant confirmation. The proportion of BI-RADS categories 4, 5, and 6 totaled 83,852 screenings, the equivalent to 0.97% of reports. In addition, 59.49% (49,891) of women who presented mammographic findings with malignant characteristics belonged to the age group 50–69 years. Conclusion: This study concluded that the strategy of biennial breast cancer screening shows scientific evidence of mortality reduction, given that 59.49% of the reports with malignant characteristics corresponded to the age group 50 to 69 years. However, the data presented did not allow calculating the number of women outside this age group who do not receive care and develop breast cancer.