Comparative evaluation of reproducibility of peripheral tissues produced by different border molding materials in edentulous patients: An in vivo study

Abstract

Aim:The aim of the study is to analyze the effect of different materials and techniques in current use on peripheral shaping of complete denture impression.Methods:The present study was conducted to compare and evaluate the maxillary border morphology produced using tissue conditioner as control and low fusing impression compound, Polyether, Pattern resin and periphery wax as border molding materials. The study was carried out on 15 denture wearer patients with well formed, rounded edentulous maxillary arch with adequate width and height. On each patient, border moldings were done, with tissue conditioner which was loaded on the borders of previous maxillary denture of the patient (control group), low fusing impression compound (Group 1), polyether (Group 2), Pattern resin (Group 3) and Peripheral wax (Group 4), respectively on special tray made for the patient. Sulcus width height and area was then measured for each group using stereomicroscope.Results and Conclusions:Based on the study it is concluded that the polyether was the best material for border molding which will give most accurate borders to a denture.

Laboratory investigation of Accuracy of Impression Materials for Border Molding

“…15 In a combined study, it was found that the impression compound gave the largest variation in width, the wax -in the area. 8 When comparing the final result of complete dentures made after impression taking with impression compound and A-silicone, no statistically significant difference was found. 22 Some authors observed a significant difference in retentive effect using impression compound and A-silicone, 16 others did not detect it 17 .…”

“…3 Of significance for a correct impression of the gingivobuccal sulcus is not only its depth but also its width, a factor which is often underestimated. 7,8 The most commonly applied border moulding tests are the Herbst tests for border molding. 9 The determination of the borders of the prosthesis is influenced by anatomical structures -muscles, muscular and soft-tissue gripping.…”

A Comparison of Undergraduate Prosthodontic Teaching of Removable Partial Dentures in Saudi Arabian Dental Colleges with North American and Turkish Dental Schools

“…[ 6 ] Each technique of border molding (single step and incremental) has its own advantages and disadvantages. [ 12 15 , 16 ] At the undergraduate level, students are in the learning phase and it is convenient for them to follow the incremental technique (using modeling plastic) as compared with the single-step technique (using polyvinyl siloxane) of border molding. Apart from this, cheaper cost can also be a reason for its popularity.…”

Técnicas e materiais de impressão em prótese total lecionados em pós-graduações ibéricas

“…4,9,10,15,22 Contudo, segundo a literatura, é possível verificar que existe um aumento do uso de elastómeros, ao longo dos anos. 5,10,28 Estes materiais são mais fácies de trabalhar e têm um tempo de trabalho que facilita a utilização clínica, o que pode justificar maior percentagem de utilização de polivinilsiloxano verificada em Portugal, comparativamente com Espanha. 4,15,22 Para a realização da impressão definitiva, o polivinilsiloxano foi o material de impressão mais escolhido, indo de encontro ao verificado nos EUA.…”