Retention of different all ceramic endocrown materials cemented with two different adhesive techniques.

Objective: The purpose of this in vitro study was to evaluate the influence of two adhesive techniques on the retentive force of four all ceramic endocrowns.

Materials And Methods: Forty maxillary first molars of approximately similar size and shape were collected. The teeth were all decoronated 2 mm above the level of proximal cement-enamel junction (CEJ) and were all endodontically treated.

Marginal gap distance and cyclic fatigue loading for different all-ceramic endocrowns.

Objective: The aim of the study was to evaluate the effect of the fabrication techniques of two types of glass ceramics on the marginal gap distance and the fracture resistance of endocrown restorations after cyclic loading.

Materials And Methods: Forty extracted mandibular first molars were root canal treated. Decoronation was done for all the endodontically treated teeth 2 mm above the cemento-enamel junction.

Dense cellular segmentation for EM using 2D-3D neural network ensembles.

Biologists who use electron microscopy (EM) images to build nanoscale 3D models of whole cells and their organelles have historically been limited to small numbers of cells and cellular features due to constraints in imaging and analysis. This has been a major factor limiting insight into the complex variability of cellular environments. Modern EM can produce gigavoxel image volumes containing large numbers of cells, but accurate manual segmentation of image features is slow and limits the creation of cell models.

Duration and determinants of birth interval in Yazd, Iran: a population study.

Background: Short birth intervals have been associated with adverse health outcomes, including infant, child and maternal mortality.

Objective: We aimed to investigate the duration and determinants of inter birth intervals among women of reproductive age in Yazd, Iran.

Materials And Methods: A cluster sampling technique was used to select 400 ever-married women aged 15-49 years in Yazd, Islamic Republic of Iran.