Abstract Introduction Self- assessment of oral health is simple, non-invasive and cost-effective method of collecting data that takes into account psychosocial aspects of oral health. The aim of this study was to investigate the effect of clinical factors on the self-perception of oral health in middle-aged patients in Republika Srpska (Bosnia and Herzegovina). Material and Methods The study included 126 subjects of both genders (34.1% male and 65.9% female) aged 24-54 years. Data were collected through questionnaires and clinical examination. Anonymous questionnaire contained questions related to socio-demographic characteristics of respondents. Clinical examination included teeth condition and the presence of prosthetic restorations. Self-perception of oral health was determined by one question. Results Bivariate analysis indicated significant effect of carious (p<0.001), missing (p<0.001) and filled teeth (p=0.022) but not the prosthetic status on self-perception of oral health. Correlation between the number of carious and missing teeth with self-perception of oral health was significant in regression analysis. Conclusion The number of carious and missing teeth had significant impact on self-assessment of oral health in studied population. Knowledge of effects of oral clinical variables on self-perception of oral health is very important to obtain clearer insight into the association between objectively and subjectively assessed oral health.

Radiative recombination in thin films of the archetypical, high‐performing perovskites is investigated through spatially resolved photoluminescence by H. Sirringhaus, F. Deschler and co‐workers in article number 1500136. Localized regions with dimensions ≈500 nm show increased emission with narrower emission lines, attributed to increased order. Excited states do not diffuse out of high emission regions, but are decoupled from nearby regions. Cover design by Bojan Galic.

Objective: to analyze factors associated with births not registered at a National Health System (SUS) maternity hospital registry office in Nova Iguacu-RJ, Brazil. Methods: a cross-sectional study of data on 468 live births (LB) between June-July 2012. The dependent variable was births not registered at the registry office within 15 days following birth. Prevalence ratios (PR) and 95% confidence intervals (95% CI) were estimated using Poisson Regression. Results: 40.6% (190/468) of LB were not registered at the registry office. Non-registration was positively associated with little or no maternal schooling (PR 1.41; 95% CI 1.04-1.93), childbirth prior to hospitalization (PR 2.15; 95% CI 1.04-4.46), and mother resident in a different municipality to the hospital (PR 1.39; 95%% CI 1.03-1.89). Conclusion: mothers with little or no schooling and who do not give birth in hospital should receive guidance on birth registration.

INTRODUCTION Electrocardiographic (ECG) diagnosis of acute myocardial infarction (AMI) in patients with paced rhythm is difficult. Sgarbossa's criteria represent helpful diagnostic ECG tool. CASE REPORT A 57-year-old female patient with paroxysmal atrial fibrillation and a permanent pacemaker presented in the Emergency Department with prolonged typical chest pain and ECG recording suggestive for AMI. Documented ECG changes correspond to the first Sgarbossa's criterion for AMI in patients with dual pacemakers (ST-segment elevation of 5 mn in the presence of the negative QRS complex). The patient was sent to catheterization lab where coronary angiogram reveled normal findings. ECG changes occurred due to pericardial reaction following two interventions: pacemaker implantation a month before and radiofrequency catheter ablation of AV junction two weeks before presentation in Emergency Department. CONCLUSION This case report points out to the limitations of proposed criteria that aid in the recognition of AMI in patients with underlying paced rhythm and possible cause(s) of transient electrocardiographic abnormalities.