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The International Journal of Prosthodontics
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Int J Prosthodont 29 (2016), No. 4     1. July 2016
Int J Prosthodont 29 (2016), No. 4  (01.07.2016)

Page 403-405, doi:10.11607/ijp.4663, PubMed:27479351


Handling of Polyvinylsiloxane Versus Polyether for Implant Impressions
Farhan, Daniel / Lauer, Wiebke / Heydecke, Guido / Aarabi, Ghazal / Reissmann, Daniel R.
Purpose: This study compared polyvinylsiloxane with polyether in handling dental impressions.
Materials and Methods: Each participant (N = 39) made four impressions, each a combination of pickup and reseating techniques with polyether or polyvinylsiloxane, of one implant cast representing a specific clinical situation (tooth gaps, limited residual dentition, or edentulous jaw). Handling of impressions was subsequently rated by using a 12-item questionnaire with 100-mm visual analog scales.
Results: While mean satisfaction scores were higher for polyvinylsiloxane than for polyether (69.5/63.0, P < .001), differences among subgroups were statistically significant only for pickup technique, limited residual dentition, and edentulous jaw.
Conclusion: Implant impressions made with polyvinylsiloxane using a pickup technique seem to be the best option for most clinical situations.