The presented paper studies the effect of the casting technology on the corrosion resistance of Co-Cr-Mo alloy. The investigations were conducted on a commercial alloy with the brand name ARGELOY N.P SPECIAL (Co-Cr-Mo) produced by Argen as well as the same alloy melted and cast by the lost wax casting method performed by a dental technician. The corrosion behavior of the dental alloys in an art...

Objectives Despite the importance to use face-bow record for transferring maxillary cast to articulator some dentists use average points to avoid the time taken and ease of use. The location of incisal point could help to set the maxillary cast or denture in an appropriate position in mounting stage. This study was designed to determine the incisal point location in ante...

statement of the problem: the stability of orthodontic treatment depends on preserving the patient’s pretreatment arch form and arch size during and after treatment. purpose: this investigation was aimed to study the size and shape of iranian mandibular dental arch and evaluate the correlation of their average dental arch with commercially available preformed rectangular nickel-titanium arch wi...

BACKGROUND A new epidemiological index is introduced for full assessment of dental caries which is known as caries assessment spectrum and treatment (CAST). "Spectrum" is considered backbone of this index as it covers from no lesion to advanced stage progression of caries. We aimed to evaluate and compare the status of caries in primary and permanent molars of 7-8-year-old schoolchildren of Shi...

Background: Phosphate-bonded investments produce a refractory cast model with rough surface and undesirable properties. Dental Surface hardening agents are then applied to investment materials enhance its properties.
 Purpose: compare evaluate the effects of different dental (Bees wax, Carnauba Ceresin wax) on roughness material. 
 Approach: 30 specimens were constructed from commerci...

STATEMENT OF THE PROBLEM Advances in computer science and technology allow the instructors to use instructional multimedia programs to enhance the process of learning for dental students. PURPOSE The purpose of this study was to determine the effect of a new educational modality by using videotapes on the performance of dental students in preclinical course of complete denture fabrication. ...

BACKGROUND Diagnostic orthodontic and prosthetic procedures commence with an initial examination, during which a number of individual findings on occlusion or malocclusion are clarified. Nowadays we try to replace standard plaster casts by scanned objects and digital models. METHOD Geometrically calibrated images aid in the comparison of several different steps of the treatment and show the v...

BACKGROUND Adverse effects of dental cast alloys on the health of patients are the problem in clinical practice. The aim of this paper was to describe the case of a patient with discolorated gingivae in the presence of fixed dental restorations and used diagnostic and therapeutic procedures. CASE REPORT A 30-year old pacient, presented with the complaints about unsatisfactory esthetic of his ...

Dental arch width dimensions have been measured by use of certain cusp tips (MOORREES, The Dentition of the Growing Child, 1959) or points at the lingual cervical margin of the teeth (BAUME, J Dent Res 29:123, 1950) as reference points. However, cusp tips wear off, vary in number and location, and do not allow adequate transformation from the deciduous canines and molars to their successors (Fi...