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AIM: This study aims to evaluate the effect of three endodontic chelating agents (17% ethylenediamine tetra-acetic acid [EDTA], 1% peracetic acid [PAA], 0.2% Chitosan) on the push out bond strength of gutta percha with a new bioceramic sealer (BioRoot RCS). MATERIALS AND METHODS: Forty-eight single-rooted mandibular premolars were selected and decoronated to obtain standardized root length of 15 mm. The root canals were prepared up to #30 files (Hyflex CM) and copious irrigation was done with 3 ml of 5.25% of NaOCl. According to the final irrigation, specimens were divided into three groups: Group 1 (n = 16) 0.2% chitosan, Group 2 (n = 16) 17% EDTA, and Group 3 (n = 16) 1% PAA for 1 min. Samples from each group were obturated with bioceramic sealer and gutta percha and sealed with temporary filling material. Two horizontal slices of 2 mm was obtained from the middle third of each sample (n = 32). Push out bond strength and failure modes were assessed. Kruskal-Wallis test followed by Mann-Whitney post hoc analysis was used for push out analysis. Chi square test was used to compare the modes of failure. The statistical significance level was set at P = 0.05. RESULTS: The highest push out bond strength was obtained with Group 1 (0.2% chitosan) followed by Group 3 (1% PAA). Group 2 (17% EDTA) showed least push out bond strength when compared to Group 1 (0.2% chitosan) and Group 3 (1% PAA). The mode of failure was mainly cohesive for all groups. CONCLUSIONS: The highest push-out bond strength of BioRoot RCS was seen after treatment with 0.2% chitosan while the least was after EDTA treatment. 1% PAA treatment also favorably affected push-out bond strength of BioRoot RCS.
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INTRODUCTION: Acute complete dissociation of a cemented socket from the acetabular cavity is very rare and has been described only in relation to closed reduction maneuver of a dislocated hip arthroplasty. CASE REPORT: We present a case of recurrent hip dislocation in a 70-year-old female post total hip arthroplasty for which a cemented dual mobility (DM) component was used. The cemented socket dissociated from the acetabular cavity with the polyethylene liner insitul-year post- surgery. It was not related to intraprosthetic dislocation as the acetabular liner-socket interface was not disrupted. A re-revision of the acetabular component was done with an acetabular reinforcement cage, cemented cup, and constraint acetabular liner. No such case of cup dissociation has been reported in the literature till date. CONCLUSION: The use of cemented DM cups without acetabular reinforcement devices has been described recently and is still controversial. Surgeons should be aware of the possibility of such a complication when using metal-backed cemented DM cups.
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OBJECTIVE: To determine the proportion and clinical profile of rotavirus associated diarrhea in children aged 6 months to 5 years. METHODS: Clinical details and stool samples were collected from 254 children aged between 6 months to 5 years presenting with acute diarrhea, irrespective of hydration status, to the outpatient department or emergency room of a hospital in Meerut, Uttar Pradesh, India. RESULTS: Rotavirus accounted for 26.3% (51 of 194) of diarrhea cases overall, and 41.2% (14 of 34) in hospitalized children. Rotavirus infection was associated with significantly longer duration [3.3 (1.4) d vs. 2.5 (1.1) d; P=0.004) of diarrhea, and more chances of dehydration (OR 1.85; 95% CI 1.19, 3.57) as compared to non-rotavirus diarrhea. CONCLUSIONS: Rotavirus is a common cause of acute diarrhea in under-five children, and is associated with a longer duration and more chances of dehydration than non-rotavirus diarrhea.
