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Abstract
A complete prosthesis serves as a replacement for teeth and supporting tissues, rehabilitating the functions of chewing, phonation, aesthetics and self-esteem of the edentulous patient (Fig. 1). The construction of complete prostheses (CP) includes creating transfer bases (BT) to evaluate them before the definitive processing of the CP that the patient will use. The misalignment of the BT of the oral tissues implies loss of retention and stability, deteriorating the accuracy of the BT as a precursor to the finished prosthesis (Fig. 2). The general objective of the study was to compare the mismatch of transfer bases constructed with self-polymerizing acrylic resin (RAAC) and transfer bases made under vacuum with polyvinyl chloride (PVC). Null hypothesis (Ho) was formulated - which assumes equality in the mismatch of the BTs built with RAAC and those made of vacuum PVC - and research hypothesis (Hi), which assumes that the mismatch of the BTs built with RAAC (Fig. 3) ) is different from the mismatch of bases made with vacuum PVC sheets (Fig. 4).
References
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