Technical Complications and Failures of Zirconia-Based Prostheses Supported by Implants Followed Up to 7 Years: A Case Series

Kolgeci, Lumni; Mericske, Ernoe; Worni, Andreas; Walker, Petra; Katsoulis, Joannis; Mericske‐Stern, Regina

doi:10.11607/ijp.3807

Cited by 32 publications

(28 citation statements)

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“…Three-unit FDPs also presented a survival rate similar to conventional FDPs [5] after 10 years. In a seven-year study, Kolgeci and co-workers observed that Y-TZP-based prostheses are clinically successful on dental implants as well [12]. This was corroborated by another 10-year clinical study [13].…”

Section: Introductionmentioning

confidence: 80%

Retention Load Values of Telescopic Crowns Made of Y-TZP and CoCr with Y-TZP Secondary Crowns: Impact of Different Taper Angles

et al. 2016

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This study aimed to examine and compare the retention load values (RL) of different telescopic crown assemblies (Y-TZP and CoCr primary crowns with electroformed and Y-TZP secondary crowns each) with three different taper angles (0°, 1° and 2°). Thirty Y-TZP primary crowns with electroformed gold copings (Z/G group) and Y-TZP secondary crowns (Z/Z group) and 30 CoCr primary crowns with electroformed gold copings (C/G group) and Y-TZP secondary crowns (C/Z group), each with taper angles of 0°, 1° and 2°, were fabricated, respectively. With the exception of the electroformed gold copings, all specimens were Computer-Aided-Design/Computer-Aided-Manufacturing (CAD/CAM)-milled, then sintered and afterwards manually adapted. In order to stabilize the gold copings, they were fixed in a tertiary structure. The secondary crowns were constructed with a hook, which ensured self-alignment with an upper chain. Afterwards, 20 pull-off test cycles were performed in a universal testing machine under artificial saliva and after weighing the secondary crowns with a 5 kg object for 20 s. Data were analyzed by one-way and two-way Analysis of Variance (ANOVA). C/Z with 1° showed higher (p = 0.009) RL than 0° and 2° tapers. C/G at 1° also showed higher (p = 0.001) RL than at tapers of 0° and 2°. Z/G and C/G at 0° showed lower RL than Z/Z and C/Z (p < 0.001). Primary crowns had no impact on the 0° group. Z/G showed lower RL as compared to C/Z within the 1° group (p = 0.007) and Z/Z in the 2° group (p = 0.006). The primary crown material had no influence on RL. Electroformed copings showed lower RL. Further investigations for 1° as well as for the long-term performance after thermomechanical aging are necessary.

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Section: Introductionmentioning

confidence: 80%

Retention Load Values of Telescopic Crowns Made of Y-TZP and CoCr with Y-TZP Secondary Crowns: Impact of Different Taper Angles

et al. 2016

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“…The studies were grouped into studies reporting results on CAD/CAM-fabricated implant-supported single crowns (SCs), CAD/CAM-fabricated implant-supported partial fixed dental prostheses (FDPs), and CAD/CAM-fabricated implant-supported fixed dental full-arch prostheses (full-arch FDPs). If there were any uncertainties regarding the reported study materials, authors or coauthors were contacted (Pozzi et al 2012(Pozzi et al , 2013aWeinstein et al 2012;Katsoulis et al 2013;Kolgeci et al 2014;Lopes et al 2014;Worni et al 2014). The two investigators selected potential studies and after consensus the studies were included for extensive analyses.…”

Section: Methodsmentioning

confidence: 99%

CAD/CAM‐fabricated implant‐supported restorations: a systematic review

Patzelt

Spies

Kohal

2015

Clinical Oral Implants Res

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The available data provided promising results for CAD/CAM-fabricated implant-supported restorations; nonetheless, current evidence is limited due to the quality of available studies and the paucity of data on long-term clinical outcomes of 5 years or more. In the sense of an evidence-based dentistry, the authors recommend further studies designed as randomized controlled clinical trials and reported according to the CONSORT statement.

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“…; Kolgeci et al. ; Larsson & Wennerberg ). The hardware complications, however, will affect the clinical success of implant‐supported zirconia restorations.…”

mentioning

confidence: 98%

Hardware complications and failure of three‐unit zirconia‐based and porcelain‐fused‐metal implant‐supported fixed dental prostheses: a retrospective cohort study with up to 8 years

Shi

Zhang

Qiao

et al. 2016

Clinical Oral Implants Res

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High survival rate of zirconia-base and Porcelain-fused-to-metal (PFM) restorations can be achieved with up to 8 years follow-up. The zirconia-based restorations need more polishing procedures, maintenance, and professional care than PFM restorations. The number of implants supporting a fixed dental prosthesis did not influence the implant survival and hardware complications. Well-designed studies with high evidence level are still needed to further explore the hardware complications and clinical survival of IZ and IP.

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Technical Complications and Failures of Zirconia-Based Prostheses Supported by Implants Followed Up to 7 Years: A Case Series

Cited by 32 publications

References 0 publications

Retention Load Values of Telescopic Crowns Made of Y-TZP and CoCr with Y-TZP Secondary Crowns: Impact of Different Taper Angles

Retention Load Values of Telescopic Crowns Made of Y-TZP and CoCr with Y-TZP Secondary Crowns: Impact of Different Taper Angles

CAD/CAM‐fabricated implant‐supported restorations: a systematic review

Hardware complications and failure of three‐unit zirconia‐based and porcelain‐fused‐metal implant‐supported fixed dental prostheses: a retrospective cohort study with up to 8 years

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