A case is presented of a nine-year-old male having a supernumerary maxillary right first primary molar together with a supernumerary maxillary right first premolar. The implications of early diagnosis and orthodontic management are discussed. The occurrence of supernumerary teeth in both the primary and permanent dentitions in the same patient seems to be rare. A review of the literature (inclu...

Sex differentiation in forensic investigation utilises craniofacial morphology, tooth dimensions and DNA analysis [3,4]. It has been suggested that odontometrics plays an important role in determination of sex in young individuals where secondary sexual characteristics have not developed. In addition, the resistance of teeth to postmortem insults render them as a valuable tool in forensic inves...

The present article introduces a new technique for chairside provisional fixed partial dentures fabrication. The described direct technique is suitable for a fast and relatively easy fabrication of provisional single crowns or small bridges. It does not necessitate any preliminary laboratory stages (such as wax-up e.g.) but rather tends to adapt the teeth morphology of a selected model to the s...

An accurate diagnosis of the morphology of the root canal system is a pre-requisite for successful root canal treatment. Frequently, root canals are left untreated because the clinicians fail to identify their presence, particularly in teeth that have anatomical variations or additional root canals. In this report a maxillary lateral incisor with two roots has been described.

BACKGROUND The Eda-A1-Edar signaling pathway is involved in the development of organs with an ectodermal origin, including teeth. In mouse, mutants are known for both the ligand, Eda-A1 (Tabby), and the receptor, Edar (Downless). The adult dentitions of these two mutants have classically been considered to be similar. However, previous studies mentioned differences in embryonic dental developme...

In biology, morphology refers to structure and form. For teeth, morphology means different things to dentists and dental anthropologists. Carlsen (1987) wrote a book called Dental Morphology that focused on the structure of the four types of teeth in the upper and lower jaws. Each tooth was broken down into its constituent parts, such as lobes, lobe segments, essential and accessory ridges, cus...

Morphological convergence is expected when organisms which differ in phenotype experience similar functional demands, which lead to similar associations between resource utilization and performance. To consume prey with hard exoskeletons, snakes require either specialized head morphology, or to deal with them when they are vulnerable, for example, during molting. Such attributes may in turn red...

Background: Dental caries is a bacterial disease affecting the hard tissue of the teeth as well as the pulp. The human dental pulp consists of odontoblast which are organized as a densely packed cell layer. Odontoblasts is located at the periphery of the pulp; therefore, they are the first cells encountered by cariogenic bacteria and their products that are represented in the carious lesion. Pu...

objectives: it is essential for clinicians to have adequate knowledge about root canal configurations; although its morphology varies largely in different ethnicities and even in different individuals with the same ethnic background. the current study aims to review the root canal configurations of mesiobuccal roots of maxillary first molars in an iranian population based on different epidemiol...

The significant rate of failure of endodontic treatment to lower incisors was attributed to poor knowledge of their endodontic morphology. As emphasized by Tinelli ME et al. (2011), the morphology of the endodontic system is strongly related to ethnicity, making possible the existence of important anatomical variations at different population groups. The present study analyzes, using radiologic...