Outcome of zirconia partial fixed dental prostheses made by predoctoral dental students: A clinical retrospective study after 3 to 7 years of clinical service

Pihlaja, Juha; Näpänkangas, Ritva; Raustia, Aune

doi:10.1016/j.prosdent.2015.10.026

Cited by 28 publications

(44 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Zirconia, with its chemical and volumetric stability and transformation toughening mechanism, enabled manufacturing of posterior fixed partial dentures (FPDs) with diminished core thickness . However, delamination of the veneering porcelain from the underlying ceramic core was the greatest drawback of layered zirconia restorations . Since the load‐bearing capacity of zirconia has been shown to be adequate even at reduced material thickness, full‐contour polished or glazed MZ could be used as an alternative to veneered restorations …”

Section: Discussionmentioning

confidence: 99%

“…Results from in vitro studies have shown that MZ crowns exhibit high fracture resistance even at a minimum thickness of 0.5 mm . In vitro studies by numerous authors have demonstrated superior mechanical properties of MZ as compared to other commercially available ceramics . In addition to the absence of chipping, the reduced occlusal space requirement seems to be a clear advantage of MZ crowns …”

mentioning

confidence: 99%

“…Although MZ is a popular restorative material, there are only a few clinical studies on survival of MZ crowns and wear of the antagonistic natural teeth . Since laboratory studies do not accurately simulate clinical performance, the final test of a material will always be its performance in the mouth.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Assessment of Antagonist Enamel Wear and Clinical Performance of Full‐Contour Monolithic Zirconia Crowns: One‐Year Results of a Prospective Study

Pathan¹,

Kheur²,

Patankar³

et al. 2018

Journal of Prosthodontics

View full text Add to dashboard Cite

Purpose To assess the clinical performance and survival of full‐contour monolithic zirconia (MZ) crowns and enamel wear produced over a 1‐year period. Materials and Methods 60 patients requiring full‐coverage restorations for endodontically treated posterior teeth opposed by healthy unrestored antagonistic teeth were selected. MZ crowns were fabricated. Vinyl polysiloxane impressions of the antagonist teeth were made, and the stone casts were digitized using a 3D laser scanner. Wear of the opposing natural teeth was evaluated at baseline (1 week), 6 months, and 1 year after crown cementation. Superimposition of the follow‐up scans on the baseline scans were performed to evaluate wear. Survival and function of the restorations were evaluated by the modified USPHS rating criteria at the same timeframes. Results Comparison of the baseline and the follow‐up wear values was statistically tested using the paired t‐test. Statistical significance was noted between the wear values at 6 months (15.5 μm) and at 12 months (16.3 μm) (p < 0.05). The Wilcoxon signed rank sum test was performed to evaluate each parameter of the modified USPHS criteria and to analyze the change in the follow‐up scores of the restorations. The survival rate for the crowns was 100%. Results were classified as “excellent” over a 1‐year follow up. Conclusions MZ crowns showed promising results related to antagonist enamel wear and survival/clinical performance.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Assessment of Antagonist Enamel Wear and Clinical Performance of Full‐Contour Monolithic Zirconia Crowns: One‐Year Results of a Prospective Study

Pathan¹,

Kheur²,

Patankar³

et al. 2018

Journal of Prosthodontics

View full text Add to dashboard Cite

show abstract

“…The success rate of zirconia FDPs has not been reported as often as the survival, but in this study the three-year success rate was 82.3%; in other studies the success rate may vary from 71% in a three-year follow-up to 89% in a five-year follow-up [28, 30]. Even longer-term follow-up studies have reported success rates, a seven-year follow-up reported 88.8% success, and Håff et al reported 73% success up to 13 years [21, 31].…”

Section: Discussionmentioning

confidence: 58%

“…In another three-year follow-up, on 17 zirconia FDPs, a 100% survival rate was reported [28]. A four-year follow-up reported a survival rate of 73.9%, and five-year follow-ups have reported 94–100% [26, 29, 30]. …”

Section: Discussionmentioning

confidence: 99%

A Three-Year Retrospective Study on Survival of Ceramic-Veneered Zirconia (Y-TZP) Fixed Dental Prostheses Performed in Private Practices

Saarva

Bjerkstig

Örtorp

et al. 2017

International Journal of Dentistry

View full text Add to dashboard Cite

Objectives The aim of this retrospective study was to evaluate the three-year clinical outcome for ceramic-veneered zirconia fixed dental prostheses (FDPs). Methods All patients who were treated with ceramic-veneered zirconia FDPs, in three private practices in Sweden, during the period June 2003 to April 2007 were included. Case records from 151 patients, treated with a total of 184 zirconia FDPs (692 units), were analysed for clinical data. All complications noted in the charts were registered and compared to definitions for success and survival and statistical analysis was performed using the Kaplan-Meier method and a Cox regression model. Results In total, 32 FDPs in 31 patients experienced some type of complication (17.4% of FDPs, 20.5% of patients). Core fractures occurred in two (1.1%) FDPs. Two (1.1%) FDPs or 0.6% of units showed adhesive veneer fractures. Cohesive veneer fractures occurred in 10 (5.4%) FDPs (1.6% of units). The three-year cumulative success and survival rates (CSR) were 82.3% and 95.2%, respectively. Conclusions Ceramic-veneered zirconia is a promising alternative to metal-ceramic FDPs, even in the posterior area. However, the higher survival rate of metal-ceramic FDPs should be noted and both dentists and patients must be aware of the risks of complications.

show abstract

Randomized clinical trial comparing monolithic and veneered zirconia three-unit posterior fixed partial dentures in a complete digital flow: three-year follow-up

et al. 2022

View full text Add to dashboard Cite

Objectives To evaluate and to compare the clinical performance and survival rate of posterior monolithic and veneered zirconia fixed partial dentures (FPDs). Material and methods Sixty 3-unit posterior FPDs were included in the study. The patients were randomly distributed into two groups (n = 30 each) to receive either a monolithic (Zenostar T, Wieland Dental) or veneered zirconia (IPS e.max ZirCAD, Ivoclar Vivadent) FPD. Each patient received only 1 FPD. Tooth preparations were scanned (Trios 3, 3Shape), designed (Dental System 2016, 3 Shape), milled (Zenotec CAM 3.2, Wieland Dental), and cemented with a resin cement. Technical and biological outcomes and periodontal parameters were assessed. Data analysis was made using the Friedman and the Wilcoxon signed-rank tests with the Bonferroni correction and the Mann-Whitney U test. ResultsThe survival rate at 3 years was 100% for veneered and 90% for monolithic zirconia restorations. Three monolithic zirconia FPDs were lost because of biologic complications. The main complication in the veneered zirconia FPDs was the fracture of the veneering ceramic in 4 of the veneered zirconia FPDs. No fracture of the frameworks was observed in any of the groups. All restorations were assessed as satisfactory after 3 years. No differences in periodontal parameters were observed between the groups. Conclusions The results of this study suggest that monolithic zirconia and complete digital flow could be a viable alternative to veneered zirconia in the posterior regions. Clinical relevance The monolithic zirconia restorations with a digital workflow can be a viable alternative in posterior fixed partial dentures, with good periodontal outcomes. Clinical trial registration number ClinicalTrials.gov (Identifier NCT 04,879,498).

show abstract

Outcome of zirconia partial fixed dental prostheses made by predoctoral dental students: A clinical retrospective study after 3 to 7 years of clinical service

Cited by 28 publications

References 29 publications

Assessment of Antagonist Enamel Wear and Clinical Performance of Full‐Contour Monolithic Zirconia Crowns: One‐Year Results of a Prospective Study

Assessment of Antagonist Enamel Wear and Clinical Performance of Full‐Contour Monolithic Zirconia Crowns: One‐Year Results of a Prospective Study

A Three-Year Retrospective Study on Survival of Ceramic-Veneered Zirconia (Y-TZP) Fixed Dental Prostheses Performed in Private Practices

Randomized clinical trial comparing monolithic and veneered zirconia three-unit posterior fixed partial dentures in a complete digital flow: three-year follow-up

Contact Info

Product

Resources

About