ABSTRACT
Objective To investigate the pressing time and puncture site bleeding after extubation of superficial venous catheter in elderly patients.Methods Four hundred elderly inpatients were selected from respiratory department during June 2015 and December 2015 and were divided into two groups:200 patients as experimental group with pressing time of 5-6 minutes and 200 patients as control group with pressing time of 3-4 minutes.The same group of nurses pressed the puncture site after extubation and changes on skin and vessels were observed,which was to find out the optimal pressing time after extubation of superficial venous catheter in elderly patients.Results The presence of bleeding,bruising,success rate of the second puncture,swelling,pain and degree of comfort were compared between two groups and significant differences were found (P＜0.05).Conclusion Compared with those in control group,less bleeding,bruising,swelling,and pain,higher success rate of the second puncture and lower degree of comfort were found in experimental group.
ABSTRACT
The aim of this study was to evaluate the dimensional changes of denture bases made from different resins after different storage periods. For this purpose, 25 sets of plaster models/resin bases were prepared using 4 acrylic resins submitted to two types of polymerization: 1- QC-20 submitted to polymerization by microwave energy; 2- QC-20 submitted to polymerization by water hot bath; 3- Vipi Cril submitted to polymerization by water hot bath; 4- Vipi Wave submitted to polymerization by microwave energy; and 5- Onda Cryl submitted to polymerization by microwave energy. After polymerization, the specimens were sectioned for accuracy readings using a comparison microscope. Readings were taken at 3 points: the crests of the right (A) and left (B) ridges, and the median region of the palate, in 4 different periods. The data obtained were submitted to two-way ANOVA and Tukey's test at 5 percent significance level. The greatest distortions were found in the posterior palatal region of the base (M), with statistically significant difference (p<0.05) for the studied resins. All acrylic resins presented dimensional changes and the storage period influenced these alterations.
O objetivo deste estudo foi avaliar a alteração dimensional de bases de prótese total confeccionadas com diferentes resinas após diferentes períodos de armazenagem. Para isso foram confeccionados 25 conjuntos modelo de gesso/base de resina, utilizando-se quatro resinas acrílicas: QC-20 submetida à polimerização convencional e por energia de microondas, Vip Cril submetida à polimerização convencional, Vip Wave e Onda Cryl submetida à polimerização por energia de microondas. Após a polimerização, as amostras foram seccionadas para realização de leituras de adaptação com auxílio de um microscópio comparador. As leituras foram realizadas em três pontos: crista do rebordo direito (A) e esquerdo (B), e região mediana do palato, em quatro diferentes períodos. Os resultados foram submetidos à análise de variância e ao teste de Tukey com nível de significância de 5 por cento. A pior adaptação foi verificada na região palatina posterior da base (M) com diferença estatisticamente significante (p<0,05) para as resinas estudadas. Todas as bases de resinas apresentaram alteração dimensional e o período de armazenagem foi um fator que influenciou essa alteração.
Subject(s)
Humans , Acrylic Resins/chemistry , Denture Bases , Denture, Complete, Upper , Dental Materials/chemistry , Dental Casting Technique , Models, Dental , Dental Polishing , Denture Design , Hot Temperature , Materials Testing , Microwaves , Polymers/chemistry , Surface Properties , Temperature , Time Factors , Waxes , Water/chemistryABSTRACT
Objective To make sure the proper time when using self-designed hemostatic belt to press vein after mainline. Methods Divide the subjects into 8 groups, using different pressing time to different group, and then observe the condition of petechia. Results There are significant differences in the different groups about the condition of petechia, P