Estudo in vivo da fidelidade de reprodução com moldeiras de dupla arcada

• Autor(a) principal: Lima, Luciana Martinelli Santayana de
• Data de Publicação: 2006
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional PUCRS
• Texto Completo: http://hdl.handle.net/10923/418
• topic: ODONTOLOGIA; MATERIAIS DENTÁRIOS; RESTAURAÇÃO DENTÁRIA

This study evaluated, in vivo, the accuracy of mettalic (Smart) and plastic (Triple Tray) dual-arch trays employed with vinyl polyxiloxane (Flexitime), in the putty/wash consistency, as well as polyether (Impregum Soft), in the regular consistency. In one patient, a transferent was parafusado on implant in the mandibular right first molar. The tranferent served as a master model. Ten impression with each tray and impression material were made. The impressions were cast in type IV die stone after 1 hour. The width and height of the master model and gypsum models were measured in a perfil projector (Nikon). The results were submitted to Student’s t-test for one sample (α=0. 05). For the width distance, the plastic dual-arch trays with vunyl polyxiloxane (4. 513 mm) and with polyether (4. 531 mm), and metallic dual-arch tray with polyether (4. 500 mm) were statistically greater than the master model (4. 489 mm). The metallic dual-arch tray with vinyl polyxiloxane (4,504 mm) did not differed statistically from the master model. For the height distance, only the metallic dual-arch tray with polyether (2. 253 mm) differed statistically from the master model (2. 310 mm). The dual-arch metallic tray with vinyl polyxiloxane reproduced models with less distortion.