Mammalian tooth development relies heavily on the reciprocal and sequential interactions between cranial neural crest-derived mesenchymal cells and stomadial epithelium. During mouse tooth development, odontogenic potential, that is, the capability to direct an adjacent tissue to form a tooth, resides in dental epithelium initially, and shifts subsequently to dental mesenchyme. Recent studies h...

AIM To assess the morphology of supernumerary lateral incisors and describe the concomitant malocclusion. MATERIAL AND METHODS Intraoral examination and analysis of panoramic views as well as study casts has been proceeded in 18 patients with supernumerary laterals. The widths of the normal and supernumerary laterals were measured. RESULTS 20 supernumerary incisors were found (in 2 patients...

Pre-eruptive intracoronary resorption is a rare condition mainly affecting pediatric patients. It radiographic finding in the dentin of crown an unerupted tooth just below enamel-dentin junction. visualized radiographs as radiolucent coronal lesion variable depth; it well-defined and located adjacent to amelodentinal limit tooth. Historically, this was misdiagnosed caries misnamed pre-eruptive ...

An unerupted supernumerary tooth was attached to the root surface of an unerupted permanent lateral incisor. It was necessary to remove both the supernumerary and the permanent lateral incisor as a single unit. The permanent lateral incisor was separated from the supernumerary and placed back into the original developmental crypt. The replanted lateral incisor erupted normally one year later. W...

OBJECTIVES this study investigated the effects of growth and tooth loading on the structural adaptation of the developing alveolar bone adjacent to the tooth root as the tooth erupted into function. Growth and occlusal function were expected to lead to increased alveolar bone density. Meanwhile, the supporting alveolar bone was expected to develop a dominant trabecular orientation (anisotropy) ...

OBJECTIVES Local anaesthesia is the standard of care during dental extractions. With the advent of newer local anesthetic agents, it is often difficult for the clinician to decide which agent would be most efficacious in a given clinical scenario. This study assessed the efficacy of equal-milligram doses of lidocaine and articaine in achieving surgical anaesthesia of maxillary posterior teeth d...

Multi-stage high power amplifiers require more accurate behavioural models to provide a better description of memory effects and highly nonlinear characteristics than memoryless models based on single-tone transfer characteristics. This is achieved using measured two-tone transfer characteristics of the amplitude and phase of the fundamental, IM3 and IM5 componenls, which has highly nonlinear c...

The small-sized teleost fish medaka, Oryzias latipes, has as many as 1000 pharyngeal teeth undergoing continuous replacement. In this study, we sought to identify the tooth-forming units and determine its replacement cycles, and further localize odontogenic stem cell niches in the pharyngeal dentition of medaka to gain insights into the mechanisms whereby continuous tooth replacement is maintai...