Research on 2-dimensional static articulatory modeling has been performed by using the semi-polar system and the guided PCA analysis of lateral X-ray images of vocal tract. The density of the grid lines in the semi-polar system has been increased to have a better descriptive precision. New parameters have been introduced to describe the movements of tongue apex. An extra feature, the tongue roo...

PURPOSE The aim of the present study was to evaluate the in vivo accuracy of flapless, computer-aided implant placement by comparing the three-dimensional (3D) position of planned and placed implants through an analysis of linear and angular deviations. METHODS Implant position was virtually planned using 3D planning software based on the functional and aesthetic requirements of the final res...

introduction: determination of the canal working length with radiographs has many drawbacks. electronic apex locators have been developed to overcome some of these problems. recently, a newly designed apex locator called novapex has been introduced. all the studies conducted to determine the accuracy of novapex have been carried out in-vitro on extracted teeth. the aim of this in vivo study was...

Fractures behind the mental foramen can be sufficiently stabilized by only one plate. In this area there are two anatomical danger points. The apex of the canine is normally long and may lie close to the osteosynthesis line. Therefore, it is necessary to make sure that the drill holes are placed beside the apex and do not damage them. If this is not possible with a simple four-hole plate, a fou...

The incidence of prostate cancer (PCA) was evaluated in 155 patients with isolated Atypical Small Acinar Proliferation (ASAP) found on initial prostate biopsy, after a medium-term follow-up (40 months) with at least one re-biopsy. Clinical and histological data were analysed. Cancer was detected in 81 of 155 (52.3%). The cancer detection rate was 71.6%, 91.3%, 97.5%, 100% at the 1st re-biopsy, ...

The purpose of this study was to evaluate the inter-hamstring position (medial to lateral intertendinous position) of the tibial nerve within the popliteal fossa. A descriptive cadaver model study was performed to permit controlled and direct measures of the tibial nerve. Fourteen embalmed lower extremities (8 left, 6 right) from nine cadavers (4 males, 5 females; 84.3 +/- 10.7 years of age) we...

intra-specific variations in apex development of two salt-tolerant cultivars (cross rowshan 11 (cr) and kharchia-65) and one salt-sensitive cultivar (ghods) of spring wheat (triticum aestivum l.) grown in sand culture at selected levels of salinity (0, 100, 200, and 300 mol m-3 nacl and cacl2 in 5:1 molar ratio) were studied. to determine the apex lengths and the number of spikelet primordi...

Aim: Modern endodontics has advanced radically in the recent years, and recently, it been focused on concept of mini-invasive treatments. This study aimed to evaluate sections root apices at 1 mm from radiographic apex using a high-resolution CBCT. Materials Methods: The current was performed three different dental centers. One hundred maxillary permanent premolars (50 first 50 s premolars) wer...

Introduction: Lateral luxation is one of the dentoalveolar injuries in children with 11% incidence among young permanent teeth. Tooth repositioning as soon possible needed to stabilize tooth actual anatomical condition, restore esthetic, and function well preventing pulp or periodontal pathologies. Case Report: An 8-year-old girl came complaints wobbling two upper left front teeth due accidenta...

Aa apex graph is a graph which has a vertex whose removal makes the resulting graph planar. Embeddings of apex graphs having face-width three are characterized. Surprisingly, there are such embeddings of arbitrarily large genus. This solves a problem of Robertson and Vitray. We also give an elementary proof of a result of Robertson, Seymour, and Thomas 5] that any embedding of an apex graph in ...