Tooth loss or absence is a common condition that can be caused by various pathological circumstances. The replacement of the missing tooth is important for medical and aesthetic reasons. Recently, scientists focus on tooth tissue engineering, as a potential treatment, beyond the existing prosthetic methods. Tooth engineering is a promising new therapeutic approach that seeks to replace the miss...

Mice carrying mutations in Wise (Sostdc1) display defects in many aspects of tooth development, including tooth number, size and cusp pattern. To understand the basis of these defects, we have investigated the pathways modulated by Wise in tooth development. We present evidence that, in tooth development, Wise suppresses survival of the diastema or incisor vestigial buds by serving as an inhibi...

Mammalian dentition consists of teeth that develop as discrete organs. From anterior to posterior, the dentition is divided into regions of incisor, canine, premolar and molar tooth types. Particularly teeth in the molar region are very diverse in shape. The development of individual teeth involves epithelial-mesenchymal interactions that are mediated by signals shared with other organs. Parts ...

A tooth which failed to erupt fully or emerged partially, it is considered to be impacted. Impaction is most common with the wisdom tooth because they are the last tooth to erupt in the oral cavity. An impacted tooth remain stuck in gum tissue or bone for various reasons, as in overcrowded regions were there could be no room for them to emerge or if the jaw is too small to fit the wisdom tooth....

UNLABELLED Coronal fractures of the anterior teeth are a common form of dental trauma that mainly affects children and adolescents. One of the options for managing coronal tooth fractures when the tooth fragment is available and there is no or minimal violation of the biological width is the reattachment of the dental fragment. Reattachment of fractured tooth fragments can provide good and long...

objective : tooth eruption has been a subject of extensive scientific studies; and literature is replete with different mechanisms of migration of a tooth from its bony crypt into the oral cavity. however, there is no common ground on the nature and source of the propelling force among the proponents of these theories. the purpose of this study was to explore the possibility of unifying the cur...

Background and Aim: Estrogen affects the metabolism in females. This study aimed to assess the effect of absence of estrogen on orthodontic tooth movement in rats. Materials and Methods: In this animal study, 55 rats were randomly divided into four groups. Group 1 (n=10) had intact ovaries. In group 2 (n=15), ovaries were intact but the rats were subjected to stress due to tooth preparation. I...

BACKGROUND Dilacerations is a tooth deformity characterized by an angulation between crown and root causing non-eruption of the tooth. It generally occurs following trauma to the deciduous dentition apices of which lie close to the permanent tooth buds. According to Neville, maxillary and mandibular incisors contribute only approximately to 1% of the incidence of dilacerated teeth. CASE DETAI...

thorough understanding of the anatomic and internal morphology of a root canal system is absolutely essential for the success of endodontic treatment. since permanent maxillary first molars have shown variation in internal anatomy, morphology, this tooth has been reviewed extensively. presence of two canals in a two-rooted maxillary first molar has rarely been reported in studies describing too...