introduction: there is substantial evidence that the technical quality of root canalfilling has a significant effect on the outcome of root canal treatment. theaim of this study was to evaluate the technical quality of root canal fillingsperformed by dental students. methods: the records of 325 teethradiographs, treated by dental students in 2008-2009 in babol dental school,were selected and ev...

Bite damage patterns have long been used to estimate shark species and body size, with somewhat limited success. The lack of Wt between damage patterns and shark size is partially due to variation in tooth size and shape within an individual. The ability to accurately predict body size from bite patterns is important for better understanding the ecological and behavioral underpinnings of shark ...

In ungulates, a set of deciduous teeth is replaced by a set of permanent teeth during their first 2 years of life. Little is known about factors causing variation in timing of tooth eruption, but overall size, condition or mineral deficiencies may play a role. The pattern of incisor (I) and canine (C) eruption was investigated in 2241 yearlings from five populations of red deer Cervus elaphus i...

OBJECTIVE To determine the relationship of tooth form with the face form by different observers and further investigate the inter observer agreement on tooth forms, face forms, their relationship among male Saudis. STUDY DESIGN A comparative cross-sectional study. PLACE AND DURATION OF STUDY Department of Prosthodontics, College of Dentistry, King Saud University, Riyadh, KSA, from February...

conclusions according to the results of this study, the accuracy of the file length in improved digital images showed no significant difference in comparison with the actual file length. materials and methods using an analytical-diagnostic method, an access cavity was prepared in 36 mandibular and maxillary premolar teeth. a file # 15 was inserted into the canal of each tooth until the tip of t...

nowadays, due to recent developments and researches in dental science, it is possible to preserve and restore previously extracted cases such as teeth with extensive caries, fractured or less appropriate cases for crown coverage as well as teeth with external perforation caused by restorative pins. in order to restore the teeth with preservation of periodontium, we should know thoroughly physio...

introduction: the purpose of this in vitro study was to compare the accuracy of the new electronic apex locator raypex5 with radiography for working length determination of straight and curved root canals. materials and methods: twenty straight and single canals of maxillary central teeth and twenty curved mesiobuccal canals of mandibular molar teeth were used. access cavities were prepared and...

Before the accident, the tooth was held in place by fibres and cells called the periodontal ligament. The fibres were torn apart and many of the cells were damaged, either by the accident or because of the length of time out of the mouth. If the tooth has been out of the mouth more than 5 minutes, it will never be the same again. That means that if it is put back in, it will have to be extracte...

Axial Flux Permanent Magnet Machines benefit from manufacturing advantages and reduction in end winding length through the use of tooth-concentrated fractional windings but display increased space harmonic content, leading to higher eddy current losses in the rotor iron and permanent magnets. The choice of a double layer tooth-concentrated fractional winding for the modeling and design of a 24 ...