Accuracy of polyether vs plaster impressions for long-span implant supported prosthesis

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dc.contributor.author Von Berg, George Botha
dc.date.accessioned 2008-02-29T11:05:03Z
dc.date.available 2008-02-29T11:05:03Z
dc.date.issued 2008-02-29T11:05:03Z
dc.identifier.uri http://hdl.handle.net/10539/4503
dc.description.abstract ABSTRACT Two different implant impression materials viz. a polyether (Impregum ®) and a plaster (Plastogum ®) impression material were used and compared with respect to the accuracy with which abutment positions were reproduced from a stainless steel master model containing five implant analogues. Ten polyether impressions and ten plaster impressions were taken and cast in stone. The positions of the precision impression copings on the twenty impressions were measured using a Reflex Microscope. The positions of the implant analogues on the twenty casts were also measured and compared to the positions on the stainless steel master model. Statistical analysis indicated significant differences between the polyether impression and the plaster impression for full arch implant supported prostheses. The use of plaster resulted in smaller interabutment error but with less predictable variance in dimensions. en
dc.format.extent 1093237 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.subject Accuracy en
dc.subject Long-span en
dc.title Accuracy of polyether vs plaster impressions for long-span implant supported prosthesis en
dc.type Thesis en


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