Cemento Ossifying Fibromas are rare fibro-osseous lesions that affect the jawbone. It is a well-demarcated and occasionally encapsulated neoplasm that contains fibrous tissue and varying amounts of calcified tissue resembling bone, cementum, or both. Slow growth and lack of symptoms are the cardinal features with expansion of both buccal and lingual plates associated with the larger lesions. Th...

Periodontitis is a chronic disease that begins with a period of inflammation of the supporting tissues of the teeth table and then progresses, destroying the tissues until loss of the teeth occurs. The restoration of the damaged dental support apparatus is an extremely complex process due to the regeneration of the cementum, the periodontal ligament, and the alveolar bone. Conventional treatmen...

This work seeks to establish comparisons of the physical properties of rat and human cementum, root dentin and their interface, including the cementum-dentin junction (CDJ), as a basis for future studies of the entire periodontal complex using rats as animal models. In this study the structure, site-specific chemical composition and mechanical properties of cementum and its interface with root ...

Environment parameters, diet and genetic factors interact to shape tooth morphostructure. In the human lineage, archaic and modern hominins show differences in dental traits, including enamel thickness, but variability also exists among living populations. Several polymorphisms, in particular in the non-collagenous extracellular matrix proteins of the tooth hard tissues, like enamelin, are invo...

AIM The aim of this study was to investigate the cementoenamel junction of a group of 11 primary sound mandibular incisors extracted for orthodontic reasons. MATERIALS AND METHODS Eleven caries and defect-free human inferior deciduous incisors were extracted for orthodontic reasons and the cementoenamel junction was investigated by scanning electron microscopy (SEM). The types of tissue inter...

Background: Management of the necrotic immature permanent incisor has long been a difficult clinical problem. The Frank technique of multiple applications of calcium hydroxide, although often successful, required multiple appointments and could take years to complete. More recently, the single-appointment mineral trioxide aggregate (MTA) apical plug technique reduced the multiple appointments t...

Labial cavities in vervet monkeys were filled with two luting cements and 2 control materials (negative and positive). Specimens were recovered and examined histo­ logically. There war little difference between the pulpal reactions to the 4 materials. The reactions to the two test materials (luting cements) are, in 28 and 56 day spec­ imens, not more severe than the reactions to the negative co...

The effect of coherency WC/Co phase boundaries on the fracture toughness of the nanocrystalline WC-Co cemented carbides is studied by MD simulation method. The simulation results show that the nanocrystalline WC-Co cemented carbides with coherency WC/Co phase boundaries has higher fracture toughness than that without coherency WC/Co phase boundaries. Moreover, the mechanism of why coherency WC/...

Effect of blood contamination during adhesive restorative procedures on dentin-resin cement shear bond strength Carlos José Soares1 Carolina Assaf Branco2 Priscilla Barbosa Ferreira Soares1 Rodrigo Borges Fonseca1 Hugo Lemes Carlo1 Alfredo Júlio Fernandes Neto2 1Department of Operative Dentistry and Dental Materials, Dental School Federal University of Uberlândia. 2Department of Occlusion and F...