Root fracture injuries affect up to 7% of permanent teeth. This type of injury is rarely seen in teeth with open apices and depending on the fracture site, the prognosis is good. This case report describes a horizontal intra-alveolar root fracture in the middle third of a maxillary central incisor associated with an extrusive luxation of the coronal segment and its treatment in a 6-year-old gir...

Helicobacter pylori (H.pylori) is a widely distributed human pathogen with high prevalence in human population. Many researches showed H.pylori infection is closely related with chronic gastritis, ganstric duodenal ulcer, mucosa associated diseases such as lymphoma and gastric cancer [1,2]. It has been classified as the class I carcinogen in 1994 by the World Health Organization and the Interna...

Once segmentation of 3D surface data of a rock pile has been performed, the next task is to determine the visibility of the surface rocks. A region boundary-following algorithm that accommodates irregularly spaced 3D coordinate data is presented for determining this visibility. We examine 3D surface segmentations of laboratory rock piles and determine which regions in the segmentation correspon...

The combination of UPb zircon ages with Hf-Sr-Pb isotopes different intrusive and extrusive felsic sedimentary rocks provides constraints on the petrogenetic evolution continental crust in western Dharwar Craton, India. oldest detrital preserved formed at ?3.6 Ga represents a relic crustal material region. dominant granitoid units Craton contain grains magmatic between 3.4 3.0 that indicate for...