Teeth are unique to vertebrates and have played a central role in their evolution. The molecular pathways and morphogenetic processes involved in tooth development have been the focus of intense investigation over the past few decades, and the tooth is an important model system for many areas of research. Developmental biologists have exploited the clear distinction between the epithelium and t...

introdouction:tooth eruption is recognized as an important aspect of human growth and development. it can be influenced by a number of factors, and it may reflect the general development of a child’s body. the purpose of this study was to determine the age at which the first primary tooth erupted and its relationship with height, weight and head circumference in 3-15-month children in the city ...

ALPHONSE R. BURDI and JEROME SUPERSTINE Department of Anatomy (Medical School) and School of Dentistry, University of Michzgan, Ann Arbor, Michigan 48109, USA J Dent Res 56(12): 1468, December 1977. deciduous and permanent dental arches, raw order Early prenatal development of human dentitions correlations indicate a moderate association (r = through the classical stages of tooth development ca...

Tooth development results from a complicated multistep interaction between the oral epithelium and the underlying mesenchymal tissue. Abnormal tissue interactions during tooth development may potentially result in ectopic tooth development and eruption. We report a case of unerupted second molar and impacted third molar and an attempt is made to review possible causes of noneruption of teeth an...

fusion is a developmental anomaly defined as the :union: of two normally separated tooth buds or the partial splitting of one tooth bud into two buds. depending on the stage of development, fusion may be either complete or incomplete. the significance of this particular case was that this fusion occurred in a posterior permanent mandibular tooth, while such a manifestation is more reported in m...

The formation of mammalian dentition is one of the most remarkable processes in development and provides a powerful model for studying the epithelialmesenchymal interactions that control patterning and morphogenesis of variety of developmental processes. The tooth development involves a complex series of genetic interactions involving growth factors, transcription factors, signal receptors and ...

An understanding of the factors that promote or inhibit tooth development is essential for designing biological tooth replacements. The embryonic mouse dentition provides an ideal system for studying such factors because it consists of two types of tooth primordia. One type of primordium will go on to form a functional tooth, whereas the other initiates development but arrests at or before the ...

Supernumerary teeth and tooth agenesis are common morphological anomalies in humans. We previously obtained evidence that supernumerary maxillary incisors form as a result of the successive development of the rudimentary maxillary incisor tooth germ in Usag-1 null mice. The development of tooth germs is arrested in Runx2 null mice, and such mice also exhibit lingual epithelial buds associated w...

Tooth development has attracted the attention of researchers since the 19th century. It became obvious even then that morphogenesis could not fully be appreciated from two-dimensional histological sections. Therefore, methods of three-dimensional (3D) reconstructions were employed to visualize the surface morphology of developing structures and to help appreciate the complexity of early tooth m...

Tooth morphology has been taught at the University of Aberdeen Dental School, United Kingdom, through self-directed workshops, using online handouts and tooth models. Tooth carving sessions were recently added to introduce manual skills training through learning tooth morphology at an early stage of the dental course. The aim of this study was to assess students' perception of both teaching mod...