Farklı Ölçü Yöntemlerinin Maksiller Tam Protezlerin Tutuculuklarına Etkisinin Kalitatif ve Kantitatif Olarak Değerlendirilmesi
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YORUKOGLU İ, Effect of impression technique aplied for maxillary complete dentures on retention: Qualitative and quantitative evaluation. Hacettepe University Faculty of Dentistry, Thesis in Prosthodontics, Ankara, 2020. The impression phase is one of the critical steps in the fabrication of a complete denture. Several techniques have been advocated to achive on optimal impression. However, there is no consensus on which are the best impression technique. The purpose of this clinical study was to compare the retention values of maxillary denture bases produced two different impression techniques. Twenty patients with completely edentulous maxillary arches were participated in this study. Maxillary complete dentures were fabricated using two different impression methods. The first method (MS prosthesis) was used a custom tray border moulded with impression compound while second method (M0 prosthesis) was used border moulded simultaneously definitive impression without impression compound. In both techniques definitive impression was made with medium viscosity polyether. The custom-designed testing device was used to measure on qualitative evaluation of denture retention. Each denture base was subjected to a vertical pulling force 3 times by using an advanced digital force gauge. Retention force was measured in Newton(N). 100-mm visual analog scale was used to for quantitative evaluation of denture retention. Denture retention satisfaction was graded by patients. IBM SPSS 23.0 package program was used for statistical analysis. Significantly increased retention was observed for MS prosthesis compared to that M0 prosthesis (p<0.05). No significant difference existed between VAS scores of the MS and M0 prostheses (p>0.05). The results of the present study suggest that the dentures used impression compound will provide better retentive force than the dentures not used impression compound. Patient satisfaction was not affected from used different impression techniques in the short term.