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...

The “reverse” stainless steel crown is a well-known method of correcting single tooth anterior crossbite (Fig 1). When an elongated preformed incisor stainless steel crown is luted with the lingual surface facing labially, the resulting slope contacts the opposing mandibular incisors and normal occlusal forces move the incisors out of crossbite relationship. The reverse crown method corrects “d...

introduction : to achieve success in treatment, one cannot ignore the knowledge of pulp anatomy. mandibular premolars are considered to be the most difficult teeth for endodontic therapy due to high variability in their canal morphology. it is possible that a relation exists between the crown size and the number of extra canals in these teeth, so this in vitro study aims to investigate the rela...

STATEMENT OF PROBLEM No study has evaluated the efficacy of auxiliary tooth preparation elements for crowns with originally reduced resistance form. PURPOSE This study evaluated the effects of different auxiliary preparation features on the resistance form of crowns with reduced axial wall and total occlusal convergence. MATERIAL AND METHODS An Ivorine tooth was prepared on a milling machin...

UNLABELLED When the supra-marginal dentine of a root-filled tooth is engaged by a crown, it may create a stronger tooth/restoration complex. This has been termed the ferrule effect. This paper reviews the current evidence for this effect and examines the influence various post and core materials have on it. Means of achieving a ferrule are discussed and the importance of planning for failure is...

The present report describes a case of implant loading with an immediate temporary crown. The buccal crown surface was removed from the extracted tooth to obtain an aesthetically satisfactory result. After periodontal treatment, tooth 21 appeared proclined and showed Grade 3 mobility, indicating the need for its extraction. The remaining bone was imaged using computed tomography, and virtual su...

The main objective of nonsurgical endodontic treatment is to eliminate micro-organisms from the root canal system. Adequate knowledge of the root canal morphology and its complexities is essential to render successful endodontic treatment. Variations in tooth form and morphology may be found in the form of anomalous cusps in the crown region or additional roots. In permanent molars, changes in ...

Tooth size varies exponentially with body weight in primates. Logarithmic transformation of tooth crown area and body weight yields a linear model of slope 0.67 as an isometric (geometric) baseline for study of dental allometry. This model is compared with that predicted by metabolic scaling (slope = 0.75). Tarsius and other insectivores have larger teeth for their body size than generalized pr...