Vertical preparation: a new technique for analogical and digital impressions

The BOPT technique (Biologically Oriented Preparation Technique) was proposed by Loi et al. (1) and has become a popular form of vertical preparation for complete crowns with promising results. In this procedure, the clinician can operate on the gingival tissue during preparation and modify its structure in thickness and height by adding modifications on the provisional restoration. However, one of the main challenges in this technique is the transference of information about the gingival tissue to the laboratory technician, who will place the margin of the restoration randomly in a space determined by two marks on the working cast.The technique proposed enables the accurate transmission of the exact point where the margin of the restoration needs to be placed. Furthermore, it facilitates the recording of conventional impression materials and intraoral scanners due to the compression of polytetrafluoroethylene (PTFE) tape into the sulcus, which allows to arrest bleeding or intracrevicular liquid and is easily registered irrespective of the method of impression used

Crecimiento de rotiferos con Nannochloropsis gaditana cultivada en fotobiorreactores versus cultivo tradicional en bolsas

En las instalaciones de la planta de cultivos marinos del Centro Oceanoqráñco de Vigo (lEO) se cuHivan diversas especies de microaJgas seg1ÍI! sistema tradicional de producción en bolsas (5OOL) y, mayoritariamente; bajo un nuevo sistema de producción en lotobiorreac!ores (FBRs)de columna (1 ooUUd.) de ano rendimiento montados por la empresa AQUALGAE SL. Parte de la producción de microalgas se destina al OJltivoy enriquecimiento de alimento vivo (rotíferos y Artemia). Este experimento se diseñó con el fin de obtener resutados que nos permitan asegurara calidad del cultivo de rotífero, aportando como alimento las microalgas producidas en semicontinuoen los FBRs, para poder así sustituirtotalmenle el sistema tradicional de producción en bolsas, menos productivo, más laborioso y sin apenas control sobre la composición nutricional dela biomasa cosechada. Los resultados obtenidos demuestran la calidad y estabilidad nutricional de las microalgas producidas en los FBRs,11) habiendo dilerencias signilicativas en el crecimiento de las poblaciones de rotíferos, aunque el número total de huevos sí ha sido superior en ~ grupo alimentado con microalgas procedentes de los FBRs. Se discuten además las dilerencias se composición nutricional observadas.In lhe lacilijies 01 lhe Centro Oceanográfico de Vigo (lEO) several species 01 microalgae are produced according to the traditional batch OJltureil poIyelhylene bags (500 L) ando more recently, in high yield column photobiorreactors (PBRs), 100 L each column, installed by tIle ~ AQUALGAE SL. Part 01 lhe harvested microalgae biomass is used lor lhe culture and enrichment 01 live prey (rotiler and Artemia). The goal cíl!e lhis wor1<was to evaluate the leasibilijy 01 maintaining and ensuring a good qualijy 01 rotilers led microalgae cuHured semicontinuously in PBRs,~ orderto lully substiMe tradijional cuHure in bags which are less productive, require more hand wor1<and no control on lhe nutritional compositioncí algae can be exerted. Hesults showed lhe nutritional qualijy 01 lhe microalgae biomass obtained in PBRs, and lhe stability 01 ijs composition. No signilicant differences were observed in comparison with group led algae Irom traditional bags except lor total eggs which were higher in ~ algae lrom PBRs. Nutritional composition differences among group are also discussed

Role of age and comorbidities in mortality of patients with infective endocarditis

[Purpose]: The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality. [Methods]: Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups:<65 years,65 to 80 years,and ≥ 80 years.The area under the receiver-operating characteristic (AUROC) curve was calculated to quantify the diagnostic accuracy of the CCI to predict mortality risk. [Results]: A total of 3120 patients with IE (1327 < 65 years;1291 65-80 years;502 ≥ 80 years) were enrolled.Fever and heart failure were the most common presentations of IE, with no differences among age groups.Patients ≥80 years who underwent surgery were significantly lower compared with other age groups (14.3%,65 years; 20.5%,65-79 years; 31.3%,≥80 years). In-hospital mortality was lower in the <65-year group (20.3%,<65 years;30.1%,65-79 years;34.7%,≥80 years;p < 0.001) as well as 1-year mortality (3.2%, <65 years; 5.5%, 65-80 years;7.6%,≥80 years; p = 0.003).Independent predictors of mortality were age ≥ 80 years (hazard ratio [HR]:2.78;95% confidence interval [CI]:2.32–3.34), CCI ≥ 3 (HR:1.62; 95% CI:1.39–1.88),and non-performed surgery (HR:1.64;95% CI:11.16–1.58).When the three age groups were compared,the AUROC curve for CCI was significantly larger for patients aged <65 years(p < 0.001) for both in-hospital and 1-year mortality. [Conclusion]: There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in the <65-year group

Role of age and comorbidities in mortality of patients with infective endocarditis.

The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality. Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups: A total of 3120 patients with IE (1327  There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in th