new trait in the mouse, involving the appearance of extra lower incisor A teeth, seems worthy of note because of its morphological interest and its unusual genetic behavior. The trait, which may be designated as di (duplicate incisors), is characterized by the appearance on one or both sides of a supernumerary and somewhat aberrant tooth located close to the mandibular symphysis and directly be...

This is a draft of a chapter for a book, Modification, in preparation for the Cambridge University Press series Key Topics in Semantics and Pragmatics. The full manuscript is also available as a single document on my website, as are some additional chapters. The book is something between a textbook for people who already have a basic background in semantics and a survey of work in the area. For...

INTRODUCTION The reattachment of a dental fragment may be performed for treatment of traumatized anterior teeth, both in cases of simple coronal fracture (enamel and superficial dentin) and in those with complicated coronal fracture (deep dentin with pulp exposure). A major part of this procedure is the adhesion technique, which was described for the first time by Buonocore in 1955. This clinic...

Objectives. The objective of the study was to determine the therapeutic methods used by traditional healers to treat oral diseases in Cameroon. Methods. A total of 200 traditional healers with a mean age of 50.4 ± 14.2 years from all the provinces of Cameroon were studied using questionnaires. Information elicited was the local names of the medicinal plants used for the management of oral probl...

The cellulose-rich walls that protect plant cells are difficult to digest, and therefore mechanical food processing is a key aspect of herbivory across vertebrates. Cell walls are typically broken down by translation of flattened teeth in the occlusal plane (i.e. grinding) as part of a complex, rhythmic chewing stroke. The grass carp, Ctenopharyngodon idella, is a voracious, invasive herbivorou...

Occlusal wear is most often attributed to attrition, which is defined as the wearing away of one tooth surface by another tooth surface. However, there are several etiological factors that can result in excessive loss of tooth structure. Common factors are enumerated as congenital anomalies, parafunctional occlusal habits, abrasion, erosion or loss of posterior tooth support.1 Tooth wear can al...

In the milling process, under high-efficiency and intermittent cutting loads, instantaneous posture of cutter cutter-workpiece engagement are in an unstable state. It is difficult to accurately identify friction wear boundary tooth flank. has become urgent problem be solved life evaluation cutters. The characteristics variation distribution thermal-stress mechanical coupling field flank vibrati...

trauma to primary teeth can lead to devastating sequels in development of permanent successors. the disturbance may range from enamel hypoplasia and/or hypo-calcification to arrest of dental bud development. crown dilaceration of permanent teeth is one of the consequences of trauma to deciduous teeth mainly due to intrusion or avulsion. this report presents a mandibular central incisor with dil...

INTRODUCTION Fracture of rotary nickel-titanium files is a real concern among endodontists; it affects the long-term prognosis of treatment. Ultrasound is a favorable technique for removing broken files, although it may result in some complications. The aim of this study was to determine the success rate of ultrasonic technique in removing file fragments and to evaluate its influence on the for...