ESTRO 36 Abstract Book

S1015 ESTRO 36 _______________________________________________________________________________________________

RT + restorative procedures; G2 - restorative procedures performed before RT; G3 - restorative procedures performed after RT; and G4 - restorative procedures performed 6 months after RT. Each one of the groups was then divided into 2 subgroups: subgroup A – using the etch- rinse Adper TM Single Bond 2; and subgroup B – using the self-etch Clearfil SE Bond. The specimens were irradiated in dose fractions of 2 Gy, for 5 consecutive days, until reaching the final dose of 60Gy, in a total of 30 fractions, during 6 weeks. The restorative procedures were done using the Z350 composite, and for standardization of the restorations a matrix was used, so the specimens all presented 4 mm height and 2 mm of diameter. The specimens were submitted to the shear bond strength test (load of 50 kgf and speed of 0.5 mm/minute), the result was obtained in N and then transformed to Mpa. The fracture pattern was analyzed in a confocal microscopy (MC). Five specimens of enamel and 5 of dentin were chosen to the morphological analyzes also by MC, those specimens were evaluated every 10 Gy. As for the bonding interface 3 specimens of each group were chosen, and prepared for scanning electron microscopy (SEM). Enamel and dentin were evaluated separately, data was analyzed by the ANOVA and Post Test Tukey (p<0.05). Significance level was 5%. Results It could be observed that for both substrates the Clearfil SE Bond (E: 20.19 MPa; D: 17.61 MPa) was statically superior than Single Bond (E: 17.21 MPa; D: 15.45 MPa) (p<0.05). As for the time of restoration, group 2 had the worst results, in both enamel and dentin. It was observed that that radiation affected negatively the bonding in enamel and dentin (p<0.05), however, in the group 4 no alterations were observed (p<0.05). The predominant fracture pattern was the adhesive, which had raised its prevalence according to the radiation. In the MC analyses there were morphological alteration in enamel and dentin after the cumulative doses of 40 Gy. It was observed, by SEM, tags formations and alterations on the hybrid layer. Conclusion It could be concluded that RT had affected the morphological surface of enamel and dentin, and that it affected the adhesion of the bonding systems, indicating that it should be waited at least 6 months after RT to perform restorative procedures, in which the Clearfil SE Bond was less affected. EP-1858 Implementation of nursing consultations following adjuvant radiotherapy for breast cancer S. Petri 1 , A.B. Krog 1 , L. Prenter 1 1 The Finsen Center - Rigshospitalet, Department of OncologySection for Radiotherapy, Copenhagen, Denmark Purpose or Objective The purpose of implementing nursing consultations for women treated with adjuvant radiotherapy for breast cancer was multiple. The primary objective was to enhance the women’s experience of continuity and consistency of care during the treatment trajectory. Secondly the aim was to implement a preparation tool "Supporting life with cancer” (fig. 1) in the consultations to address the problems and challenges the women could experience in their everyday lives following the treatment trajectory. The focus of the nursing consultations was therefore on handling the toxicity experienced during the radiotherapy as well as a specific focus on rehabilitation and support in the future everyday life. Electronic Poster: RTT track: Education and training/role development

Material and Methods Initially all RTTs (nurses and radiographers) received a generic course regarding the use of the preparation tool "Supporting life with cancer” and assessment of rehabilitation needs during the cancer treatment trajectory. Subsequently the RTTs were divided in smaller groups of 4 to 8 and participated in a course regarding the specific content of the consultations. bullet points were: - Nursing assessment of the radiotherapy induced toxicity - Advice and guidance to cope with the toxicity in everyday life - Communication techniques to ensure a patient-centered and patient-driven agenda These sessions were conducted by the department’s clinical nurse specialist, an experienced RTT and MscN. Guidelines for the consultations and tip sheets on communication and rehabilitation services were designed in cooperation with the RTTs to support and simplify the tasks of the consultations.Frequent follow-up sessions with the small RTT-groups and the clinical nurse specialist comprised adjustment and supervision continuously during the implementation period. In December 2015 the consultations were implemented to a limited number of patients, in order to gain knowledge on challenges that could occur. Small adjustments were made and in February 2016 the consultations were expanded to the entire patient group. Results The consultations were implemented successfully. The results of an audit on 100 patient charts are showed in table 1. Ninety-eight of the first 100 women, whom were scheduled for the nursing consultation, received it. The duration of the consultation was planned to 20 minutes, and the mean duration was 21.5 minutes. The

Furthermore the implementation process was evaluated with the RTTs in smaller groups and statements like; "a meaningful task”, "well prepared” and "it’s not as difficult as anticipated, I can actually handle this” were frequent statements. Conclusion The successful implementation of this project was particularly due to the deep involvement of the RTTs in