Five year evaluation of the complications observed in porcelain fused to metal (PFM) crowns placed at a university hospital

Jamal, Shizrah; Ghafoor, Robia; Khan, Farhan Raza; Zafar, Kamil

doi:10.5455/jpma.16442

Cited by 7 publications

(14 citation statements)

References 13 publications

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“…In the present clinical investigation 3, 6 and 12 months observational period of both groups, (table 2); no fractures were observed at metal ceramic crown, group (I). This is in agreement with short-term previous studies in which no fractures were reported (8,23) . On the contrary, IPS e.max press ceramic crown, group (II), exhibited higher fracture rates than metal ceramic crown when applied as single crown on first mandibular molar tooth, where fracture of five ceramic crowns was observed which are in disagreement with previous study (24) .…”

Section: Effect Of Materials Selection and Different Fabrication Techniques On Marginal And Internal Fit (397)supporting

confidence: 94%

“…In the current investigation, survival rate of metal ceramic crowns, group (I) was 98% which is consistent with previous data published in scientific literature (8,23) . While the overall success rate was 75% which is in disagreement with previous studies that reported higher success rate than present study (8,26) .…”

Section: Effect Of Materials Selection and Different Fabrication Techniques On Marginal And Internal Fit (397)supporting

confidence: 92%

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Effect of Material Selection and Different Fabrication Techniques on Marginal and Internal Fit of Metal Ceramic and All Ceramic Crowns (In vivo and In vitro study)

2021

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Purpose: Assess the effect of material selection as well as different fabrication techniques of metal ceramic (MC) and all ceramic crowns on their clinical outcomes, marginal and internal fit. Materials and methods: In vivo study(I); twenty-eight patients were provided with twenty-eight crowns restoring mandibular first molar tooth.Patients were distributed into 2 groups and 2 subgroups according to different materials and fabrication techniques: fourteen patients received MC crowns, group (I); seven patients received crowns with conventional casting of Co-Cr copings, subgroup (A) and seven patients received crowns with direct milling of Co-Cr copings, subgroup (B). Fourteen patients received IPS e.max press crowns, group (II); seven patients received crowns with conventional wax pattern, subgroup (A) and seven patients received crowns with 3D printing resin pattern, subgroup (B). The survival rate of these crowns was evaluated and statistically analyzed. In vitro study(II); one machined die was prepared to simulate crown preparation of mandibular first molar tooth. 60 crowns were constructed on die and divided into 2 groups (30 samples each) and 2 subgroups (15 samples each) according to different materials and fabrication techniques similar to in vivo study. Replica technique obtained to measure marginal and internal fit using Digital microscope. Results: The survival rate of MC and press crowns was 98% and 60% respectively. Press crowns and digital technique showed superior marginal and internal fit than MC crowns and conventional technique respectively. Conclusions: Material type and fabrication technique of MC and all ceramic crownsinfluence their clinical outcome, marginal and internal fit.

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Section: Effect Of Materials Selection and Different Fabrication Techniques On Marginal And Internal Fit (397)supporting

confidence: 94%

Section: Effect Of Materials Selection and Different Fabrication Techniques On Marginal And Internal Fit (397)supporting

confidence: 92%

Effect of Material Selection and Different Fabrication Techniques on Marginal and Internal Fit of Metal Ceramic and All Ceramic Crowns (In vivo and In vitro study)

2021

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“…Today, one of the most popular and usable restorations is ceramic metal restoration, which combines the power and precision of metal casting with the beauty of porcelain. Porcelain-fusedto-metal (PFM) has long been used in clinical practice and is therefore considered the standard material for implantsupported restorations [18].…”

Section: Type Of Restorationmentioning

confidence: 99%

Biomaterials and Biological Parameters for Fixed-Prosthetic Implant-Supported Restorations: A Review Study

Afshari

Mosaddad

Alam

et al. 2022

Advances in Materials Science and Engineering

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Because of the increasing use of dental implants, dental practitioners should understand the treatment and nature of peri-implant diseases (PIDs). This disease is a serious problem of dentistry, regarding epidemiology and therapy. Due to the increase in the practice of implantology as well as the increased number of implants placed every year, the rate of PID has widely increased. Peri-implant mucositis and peri-implantitis, gingivitis, and periodontitis are common clinical manifestations of the disease. PIDs are caused by chronic inflammatory processes in the tissues around an intraoral implant, with increasing incidence, and have become a health concern. Bacterial infections are involved in the pathogenesis of these diseases. The imbalance between the host response and bacterial biofilm results in tissue destruction. New challenges lie in the prevention, treatment, and diagnosis of PIDs. The aim of this overview was to focus on the nature of the disease itself, useful diagnostic criteria, common responsible bacteria, and the prosthetic effects of fixed restorations on the health of the periodontium since recognizing the parameters involved in the development of periodontal and PIDs will play a crucial role in preventing the progression and minimizing the complications of these diseases having a fixed prosthesis.

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“…3 Various studies have reported a higher incidence of mechanical complications leading to failure of fixed restorations. [4][5][6] Mechanical problems include, but are not limited to, de-cementation of crowns, loss of retention, marginal discrepancies, abutment fractures, porcelain fractures, fracture of metallic connectors etc. 4 Jamal et al, 5 advocated that open proximal contacts, loss of retention and ceramic fracture were the major causes leading to compromises in the way of the success of FDPs.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6] Mechanical problems include, but are not limited to, de-cementation of crowns, loss of retention, marginal discrepancies, abutment fractures, porcelain fractures, fracture of metallic connectors etc. 4 Jamal et al, 5 advocated that open proximal contacts, loss of retention and ceramic fracture were the major causes leading to compromises in the way of the success of FDPs. Ghani et al, 2 published similar results, reporting that majority of the crowns faced complications due to de-cementation (24.8%).…”

Section: Introductionmentioning

confidence: 99%

Patterns of Retentive Failures in Dislodged Single Crowns

Sharif

Aslam²,

Khan³

et al. 2022

PAFMJ

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Objective: The study aimed to ascertain the prevalence of retentive failure patterns of single crowns leading to de-cementation of the crowns and to estimate their average length of service. Study Design: Cross-sectional study. Place and Duration of Study: Department of Prosthodontics, Armed Forces Institute of Dentistry, Rawalpindi Pakistan, from May to Nov 2020. Methodology: 80 patients were selected using the non-probability Consecutive sampling technique. Both male and female patients with only single-unit crowns were included. In addition, the material used for the fabrication of crowns, years of service and site of retentive failure were recorded. Results: Female patients (41, 51.3%) reported more frequently than males (39, 48.8%). The majority of the dislodged crowns (41, 51.3%) concerned the mandibular posterior region. Almost half of the crowns (44, 55%) dislodged due to fracture occurring at the interface of restoration and the cement. 68.8% of crowns served for 1-3 years before dislodgement. Most of the dislodged restorations (30, 37.5%) were provided by general dentists. Conclusion: Mandibular posterior crowns were the most prevalent crowns that were dislodged, and the estimated length of most of the crowns was up to 3 years. Therefore, the anatomy of the tooth being prepared must be considered before preparing the tooth so that retentive failure may be reduced, thus improving the overall length of service.

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Five year evaluation of the complications observed in porcelain fused to metal (PFM) crowns placed at a university hospital

Cited by 7 publications

References 13 publications

Effect of Material Selection and Different Fabrication Techniques on Marginal and Internal Fit of Metal Ceramic and All Ceramic Crowns (In vivo and In vitro study)

Effect of Material Selection and Different Fabrication Techniques on Marginal and Internal Fit of Metal Ceramic and All Ceramic Crowns (In vivo and In vitro study)

Biomaterials and Biological Parameters for Fixed-Prosthetic Implant-Supported Restorations: A Review Study

Patterns of Retentive Failures in Dislodged Single Crowns

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