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Volume 29 , Issue 4
July/August 2016

Pages 403405

Handling of Polyvinylsiloxane Versus Polyether for Implant Impressions

Daniel Farhan, DDS, Dr Med Dent/Wiebke Lauer, DDS/Guido Heydecke, DDS, Dr Med Dent Habil/Ghazal Aarabi, DDS, Dr Med Dent/Daniel R. Reissmann, DDS, Dr Med Dent, PhD

PMID: 27479351
DOI: 10.11607/ijp.4663

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.

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