In Vitro Implant Impression Accuracy Using a New Photopolymerizing SDR Splinting Material

Di Fiore, Adolfo; Meneghello, Roberto; Savio, Gianpaolo; Sivolella, Stefano; Katsoulis, Joannis; Stellini, Edoardo (2015). In Vitro Implant Impression Accuracy Using a New Photopolymerizing SDR Splinting Material. Clinical implant dentistry and related research, 17(Suppl 2), e721-e729. Blackwell 10.1111/cid.12321

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PURPOSE The study aims to evaluate three-dimensionally (3D) the accuracy of implant impressions using a new resin splinting material, "Smart Dentin Replacement" (SDR). MATERIALS AND METHODS A titanium model of an edentulous mandible with six implant analogues was used as a master model and its dimensions measured with a coordinate measuring machine. Before the total 60 impressions were taken (open tray, screw-retained abutments, vinyl polysiloxane), they were divided in four groups: A (test): copings pick-up splinted with dental floss and fotopolymerizing SDR; B (test): see A, additionally sectioned and splinted again with SDR; C (control): copings pick-up splinted with dental floss and autopolymerizing Duralay® (Reliance Dental Mfg. Co., Alsip, IL, USA) acrylic resin; and D (control): see C, additionally sectioned and splinted again with Duralay. The impressions were measured directly with an optomechanical coordinate measuring machine and analyzed with a computer-aided design (CAD) geometric modeling software. The Wilcoxon matched-pair signed-rank test was used to compare groups. RESULTS While there was no difference (p = .430) between the mean 3D deviations of the test groups A (17.5 μm) and B (17.4 μm), they both showed statistically significant differences (p < .003) compared with both control groups (C 25.0 μm, D 19.1 μm). CONCLUSIONS Conventional impression techniques for edentulous jaws with multiple implants are highly accurate using the new fotopolymerizing splinting material SDR. Sectioning and rejoining of the SDR splinting had no impact on the impression accuracy.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > School of Dental Medicine > Clinic of Reconstructive Dentistry and Gerodontology

UniBE Contributor:

Katsoulis, Joannis


600 Technology > 610 Medicine & health








Eveline Carmen Schuler

Date Deposited:

29 Mar 2016 11:01

Last Modified:

11 Sep 2017 19:33

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

accuracy, edentulous jaw, implant impression technique, impression copings, passive fit, splinting material




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