The interfacial mechanism has always been a concern for 3-aminopropyltriethoxysilane (APTES)-grafted palygorskite (PAL). In this research, the of graft modification grafting APTES to surface PAL (100) was studied using density functional theory (DFT) calculation. results illustrated that different states influence inter- and intramolecular interactions between APTES/PAL (100), which are reflect...

Purpose. The purpose of this finite element study was to compare stresses, strains, and displacements of double versus single implant, in immediate loading for replacing mandibular molar. Materials and Methods. Two 3D FEM models were made to simulate implant designs. The first model used 6 mm wide-diameter implant to support a single molar crown. The second model used 3.75-3.75 double implant d...

During early tooth development, multiple signaling molecules are expressed in the dental lamina epithelium and induce the dental mesenchyme. One signal, BMP4, has been shown to induce morphologic changes in dental mesenchyme and mesenchymal gene expression via Msx1, but BMP4 cannot substitute for all the inductive functions of the dental epithelium. To investigate the role of FGFs during early ...

Research in dental caries generates data with two levels of hierarchy: that of a tooth overall and that of the different surfaces of the tooth. The outcomes often exhibit spatial referencing among neighboring teeth and surfaces, i.e., the disease status of a tooth or surface might be influenced by the status of a set of proximal teeth/surfaces. Assessments of dental caries (tooth decay) at the ...

Gemination aka twinning and fusion, are rare occurrences in posterior mandibular teeth, often requiring endodontic and surgical treatment for functional, orthodontic or cosmetic reasons. The diagnosis and design of a precise treatment plan in cases involving double teeth are in most cases challenging. The purpose of this case report is to describe a successful multidisciplinary treatment protoc...

A double blind, controlled trial was undertaken to assess the effect of intra-muscular dexamethasone on neurapraxia following the surgical removal of mandibular third molars. No significant difference was found 24 h post-operatively between a control group and a group given dexamethasone.

According to the theory of gearing, mathematical model a recess action (RA) worm gear with double-depth teeth has been developed in previous study. In this study, tooth undercutting aforementioned is investigated by applying surface equations and computer simulation programs. Limit curves can thus be plotted, minimum integer numbers for non-undercutting full RA, semi RA standard proportional ge...