Valve-sparing aortic root repair (V-SARR) using the David reimplantation method is an increasingly popular alternative to composite valve graft aortic root replacement in patients with aortic root aneurysms or dissections who wish to avoid anticoagulation. Computed tomography (CT) with retrospective electrocardiograph (ECG)-gating has become routine before and following V-SARR at Stanford. CT a...

A tool remaining useful life prediction method based on a non-homogeneous Poisson process and Weibull proportional hazard model (WPHM) is proposed, taking into account the grinding repair of machine tools during operation. The intrinsic failure rate built according to data. WPHM established by collecting vibration information operation introducing covariates describe In combination with repair,...

El objetivo de la presente investigación in vitro fue comparar adaptación marginal del Endosequence Root Repair Material (ERRM) y Bio-C cuando son utilizados en obturaciones retrógradas. Veinte dientes unirradiculares extraídos fueron estandarizados a 15 milímetros. Las raíces remanentes instrumentadas obturadas mediante técnica onda continua. Luego, seccionados los 3 mm apicales raíz, posterio...