Enhanced Implant Impression Techniques to Maximize Accuracy

Papaspyridakos, Panos; Schoenbaum, Todd R.

doi:10.1007/978-3-319-72601-4_10

Cited by 1 publication

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References 43 publications

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“…On the other hand, they concluded that direct impression-taking techniques exhibited higher accuracy. In this study, to decrease the errors resulting from the expansion of stone, 1) the analogs were splinted by Duralay acrylic resin and the stone was poured, and 2) the analogs were placed within prefabricated tubes and pouring of the stone was carried out in two stages [35][36][37]. In this study, the highest accuracy was related to the open tray impression technique without splinting the impression copings and the use of prefabricated tubes for analogs.…”

Section: Carbal Et Al Showed That Open Tray Impression Technique Withmentioning

confidence: 99%

Comparison of the accuracy of fixture-level impression making after splinting prosthetic components

2020

Biointerface Res Appl Chem

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Considering the effects of different impression-taking techniques on the dimensional accuracy of the final cast and controversies over the best technique in implant dentistry, the present study was undertaken to evaluate the effects of three different open-tray impression techniques on the dimensional accuracy of final casts for implants. A two-piece metallic index was prepared and a patient’s jaw was simulated by placing self-cured acrylic resin in the lower part of the index. Then 2 holes were produced in the acrylic resin at a specific distance from each other, and the analogs were placed in these holes. Three different open-tray impression techniques were evaluated using the upper segment of the index, which mimicked the specific tray. The dimensional accuracy of the casts was evaluated by comparing the distances between the predetermined points on the implant analogs and the positions of the points with similar distances on the master model. A digital caliper (accurate to 0.01 mm) was used to measure the distances. The differences in the measurements on the final casts were analyzed with SPSS 16, using Kruskal-Wallis test. Post hoc Mann-Whitney U test was used for two-by-two comparisons. There was a significant difference between the group in which the analogs and impression copings were not splinted and the group with impression coping splinting without analog splinting and the group with simultaneous splinting of the impression copings and implant analogs, in relation to distances between similar points on the master model. In this context, the second and third techniques better reconstructed the positions of the points. Splinting of impression copings with Duralay acrylic resin prevented the movement of impression copings during the impression-taking procedure and despite an increase in the accuracy of impression taking during splinting of analogs by Duralay acrylic resin, the increase in accuracy was not significant statistically; therefore, splinting of the impression copings without splinting of the analogs is recommended due to an increase in impression-taking accuracy and facilitation of laboratory procedures.

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Section: Carbal Et Al Showed That Open Tray Impression Technique Withmentioning

confidence: 99%

Comparison of the accuracy of fixture-level impression making after splinting prosthetic components

2020

Biointerface Res Appl Chem

View full text Add to dashboard Cite

show abstract

Enhanced Implant Impression Techniques to Maximize Accuracy

Cited by 1 publication

References 43 publications

Comparison of the accuracy of fixture-level impression making after splinting prosthetic components

Comparison of the accuracy of fixture-level impression making after splinting prosthetic components

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