Clinical Fitting and Adjustment Time for Implant-Supported Crowns Comparing Digital and Conventional Workflows.

Joda, Tim; Katsoulis, Joannis; Brägger, Urs (2016). Clinical Fitting and Adjustment Time for Implant-Supported Crowns Comparing Digital and Conventional Workflows. Clinical implant dentistry and related research, 18(5), pp. 946-954. Blackwell 10.1111/cid.12377

[img] Text
Clinical Fitting and Adjustment Time for Implant-Supported Crowns Comparing Digital and Conventional Workflows..pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (5MB) | Request a copy

PURPOSE The aim of this prospective cohort study was to investigate clinical and laboratory performance of implant-supported reconstructions comparing the digital to the conventional workflow. MATERIALS AND METHODS Twenty study participants were treated in a cross-over design for single-tooth replacement in posterior sites, each with a customized titanium abutment plus computer-assisted design and computer-assisted manufacturing (CAD/CAM)-zirconia-suprastructure (test: digital workflow; n = 20) and a standardized titanium abutment plus PFM-crown (control: conventional pathway; n = 20). Evaluation of the 40 reconstructions included: 1) feasibility of laboratory cross-mounting of each abutment-crown-connection, and 2) assessment of adaptation time for clinical adjustments of interproximal and occlusal surfaces. Statistical analyses were performed using the exact Wilcoxon rank sum tests. RESULTS Laboratory cross-mounting was feasible for three reconstruction pairings revealing a 15% vice versa transfer success rate. All implant crowns could be provided successfully within two clinical appointments, independently of the workflow used. The mean clinical adjustment time was significantly lower (p < .001) for test reconstructions from the digital workflow with 2.2 min (standard deviation [SD] ± 2.1) compared with the ones from the conventional pathway with 6.0 min (SD ± 3.9). CONCLUSIONS The digital workflow was almost threefold more efficient than the established conventional pathway for fixed implant-supported crowns. Clinical fitting could be predictably achieved with no or minor adjustments within the digital process of intraoral scanning plus CAD/CAM technology.

Item Type:

Journal Article (Original Article)

Division/Institute:

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

UniBE Contributor:

Joda, Tim; Katsoulis, Joannis and Brägger, Urs

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1523-0899

Publisher:

Blackwell

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

20 Jan 2017 13:36

Last Modified:

24 Sep 2017 12:13

Publisher DOI:

10.1111/cid.12377

PubMed ID:

26395013

Uncontrolled Keywords:

CAD/CAM, conventional, cross-mounting, dental implant crown, digital, intraoral optical scan, workflow

BORIS DOI:

10.7892/boris.91253

URI:

https://boris.unibe.ch/id/eprint/91253

Actions (login required)

Edit item Edit item
Provide Feedback