Tooth root bending fatigue performance is the primary consideration in gear design. To investigate difference between tooth performances of shot peened and base material, TM210A steel gears double-tooth pulsating experiment with a stress ratio 0.05 was carried out on experimental by group method staircase method. The life different levels conditional limit under 1 × 107 cycles were obtained, S-...

Talon cusp (TC) and dens invaginatus (DI) are relatively rare developmental anomalies which affect the shape of teeth. TC is an additional cusp that projects predominately from the lingual surface of anterior teeth. DI is a deep surface invagination of the crown or root which is commonly detected on routine radiographic examination. Both of these anomalies are observed more frequently in perman...

AIM This study aims to clarify, according to our experience, the correct surgical sequence which should be followed in order to treat double mandibular fractures. MATERIAL OF STUDY From January 2007 to January 2010, we have conducted a retrospective study on a sample of patients operated on in our department. We include only those cases in which the jaw was fractured in 2 places, in particula...

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 ...

multiple adhesive coating is a controversial topic, especially in primary dentition that should be clarified. we evaluated the effect of multiple consecutive adhesive resin coatings on the microshear bond strength (μsbs) of composite resin to primary tooth dentin utilizing a filled (adper single bond plus) and an unfilled (adper single bond) adhesive resin.thirty extracted primary canines were ...

This report describes a case of a 7 years old girl who suffered from complicated crown fracture of right mandibular central incisor because of a bicycle accident. For the tooth partial pulpotomy with calcium hydroxide, capping was performed in order to achieve apexogenesis and the tooth was restored with a double-seal of glass ionomer cement and composite resin. The patient was reviewed over 8 ...

The present case describes the management of significant tooth wear in a 13-year-old boy who presented following excessive consumption of carbonated drinks, accompanied by a “frothing” habit. The case demonstrates an alternative approach to the management of tooth wear, using a double-veneer technique, and emphasises the importance of recognition and early intervention in cases of dental erosion.

Permanent Magnet Machines (PMM) with a phase number (m) higher than three allow redundancy and lower torque ripple compared to their three phase counterparts. In this paper, a six phase permanent magnet machine with surface rotor magnets, designed with fractional slot tooth winding is proposed. A stator design with fractional slot tooth winding allows the design of a compact machine through sho...

Odontogenic anomalies can occur as a result of conjoining or twinning defects. These include fusion, gemination and concrescence occurring in both primary and permanent dentition. Double tooth is a term used to describe connate tooth and includes both dental fusion and gemination. The phenomenon of gemination occurs when two teeth develop from one single bud leading to a larger tooth. Fusion is...

The dorsal raphe nucleus (DR), contains 60% serotonergic neurons, which appears to be involved in the control of endogenous pain sensation. MK-801, a non-competitive antagonist of N-methyl-D-aspartate receptors, inhibits spinal nociceptive neurons, however, little information is available about the effect of its administration on the DR. To evaluate the distribution of c-Fos and serotonin expre...