Outcomes and cost minimization between siriraj cold hot pack and the innovator product.

Objective: To evaluate the quality of product and compare outcomes and costs between Siriraj Cold Hot Pack and an innovator product from the patient and hospital perspective. Methods: Siriraj Cold Hot Packs were prepared and tested for outcome and cost with the innovator product. The criteria for comparison such as heat and cold retention, compression resistance and skin irritation between the Siriraj Cold Hot Pack and the innovator product were determined and then analyzed for the economic effect by cost minimization analysis. Results: Siriraj Cold Hot Pack exhibited standard characteristics (p > 0.05). After being soaked in 95-100°C for 5 minutes or in 70-80°C for 7 minutes, it could retain heat at a temperature higher than 43°C for at least 10 minutes. It also retained cold at temperature below 10°C for longer than 10 minutes after being stored in a freezer for 2 hours, in a refrigerator (2-4°C) for 4 hours or on ice for 20 minutes. The comparison of heat and cold retaining and compression resistance between the Siriraj Cold Hot Pack and the innovator product revealed no difference. However, when they were soaked with water and heated with a microwave at 600 watts for 2 minutes, the Siriraj Cold Hot Pack was able to significantly retain heat longer than the innovator product (p < 0.05). For economic analysis, Siriraj Cold Hot Pack is the best choice. The sensitivity analysis from the patient perspective was conducted by increasing the price of the Siriraj Cold Hot Pack until greater than 25%, both products will be equivalent the best choice. From the hospital perspective, increasing the cost of production until greater than 102%, both products will be equivalent the best choice. Conclusion: The results show that Siriraj Cold Hot Pack yielded the similar capability to the innovator product, including hot and cold retention, compression resistance and the irritation results. Siriraj Cold Hot Pack is the best choice for both the patient and hospital perspective.

In vitro comparative analysis of resistance to compression of laboratory resin composites and a ceramic system.

Background: Restorative materials must be capable not only of restoring the patient's masticatory function, but also to rescue the self-esteem of those maculated by a disharmonious smile. Among the esthetic materials available on the market, the choice frequently lies between ceramic or indirect laboratory resin restorations. Aim: This study assessed the resistance to compression of two laboratory resins found on the market, namely Artglass® and Targis® , considering Omega 900® ceramic from Vita as control. Materials and Methods: With the aid of stainless steel matrices, with internal dimensions of 8.0 mm diameter at the base, 9.0 mm in the top portion and 4.0 mm height, 15 test specimens were made, being 5 of each material to be tested. The test specimens were kept in distilled water for 72 hours and submitted to an axial load by the action of a point with a rounded tip 2 mm in diameter, adapted to an EMIC 500 universal test machine. The compression speed was 0.5 mm/min, with a load cell capacity of 200 Kgf. Results: The means of the results were calculated in kilogram-force (Kgf). The results found were treated by analysis of variance (ANOVA) and the differences found among the groups were identified by the Tukey test (5%). Conclusion: It was observed that the material Omega 900® offered significantly greater resistance to compression than the other two materials, which did not present statistically significant difference between them.

Avaliação do creep e da resistência à compressão de 3 composições de amálgama enriquecidas por cobre em função do tipo de amalgamador / Evaluation of creep and of the resistance to the compression of 3 enriched compositions of amalgam for copper in function of the type of amalgamator

A finalidade do presente trabalho foi quantificar a resistência mecânica à compressão após 1 hora e 24 horas e medir a porcentagem do "creep" de amálgamas submetidos à trituração mecânica em diferentes aparelhos. Foram selecionadas as ligas Dispersalloy, Tytin e DFL Alloy. Os amalgadores foram o Deltronix, Silamat e Ultramat. 2. Os resultados mostraram que o Tytin alcançou os maiores valores, seguido pelo DFL Alloy e Dispersalloy. Com relação aos amalgamadores, o aparelho Deltronix promoveu baixos valores de resistência de 1 hora, sendo que os materiais DFL Alloy e Dispersalloy não alcançaram o valor mínimo estipulado pela ADA. Já o equipamento Ultramat 2 gerou as maiores médias, ficando o Silamat numa posição intermediária. Em relação ao "creep", todas as médias obtidas ficaram bem abaixo do valor máximo permitido pela ADA. Tanto os amálgamas quanto os amalgamadores não mostraram significância estatística

The objective of the present study was to evaluate quantitatively the mechanical resistance to compression after a 1-hour period and a 24-hour period and measure the percentage of creep of dental alloys submitted to mechanical trituration in different appliances. The Dispersal, Tytin and DFL alloys were chosen. The amalgamators chosen were Deltronix, Silamat and Ultramat 2. The results indicate that Tytin reached the best values, followed by DFL Alloy and Dispersalloy. As for the amalgamators, the Deltronix promoted low resistance values after the 1-hour period and the DFL Alloy and Dispersalloy did not reach the minimum value set by the ADA. The Ultramat 2 generated the best results, and the Silamat achieved an intermediate result. In relation to the creep, all values obtained from this study were set below the maximum value allowed by ADA. Both the alloys and amalgamators showed no statistical significance