Worn teeth are a bane to paleobiologists interested in the diets of human ancestors and other fossil primates. Although worn teeth dominate fossil assemblages, their shapes are usually not used to reconstruct the diets of extinct species. The problem is that traditional studies of primate dental functional anatomy have focused on unworn morphology. This has limited most functional analyses to o...

Human mandibular canines do not present an internal anatomy as simple as could be expected; there are such canines with a single root and two canals, two roots or fused roots. The existence of mandibular canines with more than one root canal is a fact that clinicians ought to keep in mind, in order to avoid failure during endodontic treatment. In spite of the low incidence of lower canines with...

Knowledge of the size, morphology, and variation of the root canals of a primary tooth is useful in visualizing the pulp cavity during treatment. The roots of the primary teeth are formed completely approximately 16 to 20 months following eruption.1 In approximately three years the roots begin to resorb at the apex or on a lateral surface near the apex.2 The form and shape of the root canals ro...

Endodontic therapy aims at disinfection of the root canal system. Efforts are made by instrumentation and chemical to remove infected pulp tissue debris from space. However due variations in anatomy, it is impossible instrument all parts that may lead persistence or progression infection. Thorough knowledge tooth morphology important improve success rate endodontic treatment. Missed canals cons...

Knowledge and understanding the anatomical configuration of individual tooth play a significant role in success of endodontic treatment, in addition to through debridement and obturation of the canals. The canal anatomy of maxillary second premolar has been studied extensively, and the presence of a significant variety of multirooted canals is relatively rare in it. A 27-year-old female reporte...

JCO/DECEMBER 2005 T lingual technique is considered to be one of the most difficult, requiring extended treatment times and often achieving less-than-satisfactory results. Firstand third-order tooth movements are complicated by the variable lingual tooth anatomy.1 Torque control is also more problematic; with the reduced interbracket distance, even small variations in bracket height can have a ...

than equivalent ceramic restorations for the treatment of both anterior and posterior teeth.1-3 Moreover, composite restorations allow for minimally invasive preparations or no preparation at all when modifying existing tooth anatomy or assuming the replacement of decayed tissues; this constitutes an unparalleled advantage of “free-hand bonding” also due to its relative simplicity. This rationa...

Mimicry in the field of science involves reproducing or copying a model, a reference. If we as dentists want to replace what has been lost, we need to agree on what is the correct reference. The accepted frame of reference must be the same for the entire profession, and it should be timeless and unchanging success. Age, disease and traditional restorations can cause further problems to the exis...

AIM This study describes a clinical case of type III dens invaginatus with an extensive periradicular lesion treated successfully. BACKGROUND Dens invaginatus is a maldevelopment of the dental germ which occurs as a result of the invagination of the enamel organ. These cases may present difficulties with respect to its diagnosis and treatment because of canal morphology. The success of endodo...