نتایج جستجو برای: hard tissue formation
تعداد نتایج: 1502704 فیلتر نتایج به سال:
Ectodermal dysplasias are a heterogeneous group of inherited disorders characterized by defective formation of tissues derived from the embryonic ectoderm. Besides tissues of epidermal origin, other maxillofacial structures including hard and soft tissues can be affected. Disturbances in the early development of teeth frequently result in congenital absence or deformities of teeth. The lack of ...
Dental implant failure remains a prevalent problem around the globe. The integration of implants at interface soft and hard tissues is complex susceptible to instability infections. Modifications surface titanium have been developed improve performance, yet insufficient biofilm formation remain major problems. Introducing nanostructures on augment implant–tissue contact holds promise for facili...
Background: This study addressed the development of biodegradable and biocompatible scaffolds with enhanced biomechanical characteristics. The biocompatibility and the cationic nature of chitosan (CTS) make it more effective as a bone grafting material. Methods: The hydroxyapatite nanoparticles (nHA) were synthesized by hydrothermal method, and bioglass (nBG) (50% SiO2-45% CaO-5% P2O5) was synt...
An odontome is a slow growing and non-aggressive odonotogenic tumor composed of enamel,dentin,cementum and pulp tissue.complax odontome comprise of an unorganized mass of odonotogenic tissues,morphologically not resembling the normal teeth.in this report,a case of rare odontoma in a ten-years-old boy that caused dalayed eruption of a maxillary right farst permanent molar,buccal expansion of the...
Bone is the most implanted tissue after blood. The major solid components of human bone are collagen (a natural polymer, also found in skin and tendons) and a substituted hydroxyapatite (a natural ceramic, also found in teeth). Although these two components when used separately provide a relatively successful mean of augmenting bone growth, the composite of the two natural materials exceeds thi...
Although hard tissue injuries are uncommon in the pediatric patient, dentists may be involved in the initial assessment of these patients. In this paper, we review fractures of the facial skeleton with a focus on dentoalveolar injuries. Minimally displaced fractures in pediatric patients can be managed conservatively, while displaced fractures may require open approaches and rigid fixation. New...
i ntroduction: the aim of this study was to evaluate the clinical and histological status of the pulp in sound human premolars after direct pulp capping (dpc) with four different dpc methods/materials. methods and materials: this study was conducted on eight volunteers who had to extract four first premolars due to orthodontic treatment. subsequent to tooth isolation, standardized class i occlu...
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