[Tensile strength analysis of three different restoring techniques in canine primary teeth]

Extensive caries in the primary anterior teeth is one of the highly prevalent dental issues in primary dentition. On the other hand, special considerations for restoring these teeth are a challenge for the dental practitioner. The aim of this in vitro study was to compare the tensile bond strength of a new method of Reverse Metal Post Technique [RMPT] with two conventional methods. Eighty-four extracted primary canines were assigned to three equal groups. The crowns were cut-off 1 mm coronal to CEJ and the root canals were prepared for the next stage. The teeth were restored according to the groups they were assigned to; Group 1 with composite posts; Group 2 with alpha-shaped orthodontic wires; and Group 3 with the RMPT. The specimens were then subjected to tensile force by a mechanical testing machine. Data were analyzed using ANOVA, tukey post hoc, Chi-square and student t test [alpha =0.05]. The mean tensile bond strength for groups 1, 2 and 3 were 6.26 +/- 2.40, 7.35 +/- 1.60 and 9.88 +/- 2.60MPa, respectively. A significant difference was observed between group 3 and the two other groups [p<0.001]. However, the difference between groups 1 and 2 was not statistically significant [p>0.05]. The tensile bond strength was significantly higher in RMPT than the two conventional methods used for restoring severely destroyed primary anterior teeth

[Communication skills of medical interns of Qazvin UMS]

The aim of this study was to evaluate the communication skills of 110 medical interns of Qums teaching hospitals in 2004. Through structured questionnaire the interns and their 110 patients were surveyed. Out of 110 medical interns, 38.18% always said "greetings" to the patients and asked about their conditions whereas only 1.82% introduced themselves to patients. Showing sympathy and sensitivity for patients was found only in 21.82% of the interns and 10.41% used to discharge the patients form uncertainty. Asking any type of questions was allowed by only 23.64% of medical interns however, none of the patients asked about treatment protocol. From the patients' point of view, 49.09% were fully aware of their problems,. 52.73% could ask any question and 61.82% felt a good sense of empathy and sensitivity shown by the interns. It is suggestible that the communication skills of the interns should be empowered