Programa de Pós-Graduação em Odontologia – PPGO/UNICAMP
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/9679
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Item Acesso aberto (Open Access) Análise comparativa da alteração dimensional de materiais de moldagem elastoméricos, através da técnica do casquete(Universidade Estadual de Campinas, 2000-09-18) ANDRADE, Cícero Almeida de; SILVA, Frederico Andrade e; http://lattes.cnpq.br/2282864112869742The present study assessed comparatively the dimensional change of four fluid-consistence elastomeric impression materiais (one addition silicone, two condensation silicones and one mercaptan) using the headcap technique. A metal cast (pattern) was made, enclosing two teeth with metal-crown preparation. On this cast, with a 0,3-mm metal relief, were obtained the headcaps using Neelon's technique (brush method). The impressions were carried out with a static-weight press, where a strength of 39.2 N (newton) was pressing the trays over the metal cast. The occlusal surfaces of the prepared teeth had cross-wise grooves. In the extreme of each groove there were small points where the reading started. The linear reading, in a comparing microscope, was initially done at the occlusal surface of each teeth distinctly, so following it was read matching the points between the two teeth. The results were statistically analysed and it followed that there were no statistically significant differences.Item Acesso aberto (Open Access) Análise de três técnicas de moldagem utilizando-se duas siliconas por condensação e uma silicona por adição(Universidade Estadual de Campinas, 1999-02-25) ANDRADE, Cícero Almeida de; SILVA, Frederico Andrade e; http://lattes.cnpq.br/2282864112869742The procedure ín the constructíon of a fixed brídged has always been long, dífficult and tedíous" New equípament and materiais has appered to facílítate this procedure, however a question sti!! remains: conciliate techniques and materiais with an suitab!e cost-benefit In thís way, lhe aím of this study was: evaluated 3 impressíon techiniques (unitary tray, double impression and simultaneous impression ) using addition and condensatíon sílícon materiais ( Express, 3M and Optosii/Xantopren )" Over a comparative mensuraments from complet arch model cast, we could conclude: consídering the techniques, the unítary tray technique had better results: the 3M material (condensatíon) showed statístically the most satisfactory results when the unitary tray was used.