2 edition of Marginal adaptation and microleakage of Procera AllCeram copings found in the catalog.
Marginal adaptation and microleakage of Procera AllCeram copings
Francine Г‰lise Albert
Written in English
|Statement||by Francine Élise Albert.|
|The Physical Object|
|Pagination||xii, 115 leaves :|
|Number of Pages||115|
The main causes of these clinical failures are secondary caries, loss of retention and chipping of the porcelain veneer. 12, 13 For this reason, restoration fit is an important factor for restoration prognosis, insofar as poor marginal adaptation results in dissolution of the luting agent and favors microleakage of bacteria and their byproducts. Marginal Adaptation and Microleakage of Procera AllCeram Crowns with Four Cements Albert, Francine E. Purpose: This study investigated the effect of different cements on microleakage and marginal adaptation of porcelain crowns.
Objectives: To evaluate the microleakage and marginal gap of various luting materials after cementing ceramic crowns. Methods: Cervical margins of human molars were designed as circular chamfers. Cementation of full-contour ceramic crowns was conducted with zinc-phosphate cement (Harvard cement), resin cement (Panavia F ) and self-adhesive resin cements (RelyX Unicem, BifixSE, . Any marginal discrepancy can lead to microleakage, marginal discoloration, secondary caries and eventually failure of restoration.  'Various factors including ceramic firing effect, curvature of finish line and type of cement on the effect of the marginal adaptation of .
Albert FE, El-Mowafy OM. Marginal adaptation and microleakage of Procera AllCeram crowns with four cements. Int J Prosthodont ; 17(5): [PMID: ]  Edelhoff D, Ozcan M. To what extent does the longevity of fixed dental prostheses depend on the function of the cement? Working Group 4 materials: Cementation. In the present study, the replica technique was used to evaluate the marginal and internal adaptation of zirconia copings. This technique is well described in the literature and is established as a non-invasive and reliable method to determine the marginal and internal gap of indirect restorations, since it is easy and not time-consuming to.
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Procera AllCeram copings had a significantly larger mean marginal gap (54 μm) compared to metal ceramic (29 μm). Conclusion In both types of crowns, the use of resin cement resulted in the highest percentage of 0 microleakage scores, whereas the zinc phosphate cement resulted in the highest percentage of extensive microleakage.—Cited by: 4.
Procera AllCeram copings had a significantly larger mean marginal gap (54 microm) compared to metal ceramic (29 microm). In both types of crowns, the use of resin cement resulted in the highest.
This in vitro study assessed the marginal gap and marginal microleakage in zirconia copings fabricated using two computer aided techniques- CAD milling and Copy milling and cemented to respective tooth preparations using two resin bonding systems, light cure and self-cure resin bonding systems.
32 extracted premolars were prepared to receive zirconia copings fabricated using Cited by: 4. This study sought to investigate the marginal adaptation and microleakage of Rocera AllCeram copings (PAC) and porcelain-fused-to metal (PFM) copings with zinc phosphate (ZnP0+ glass ionomer (GIC), resin modified glass ionomer (RrnGIC) and resin (R) cements.
Procera AllCeram mm copings were fixed with zinc phosphate (AZ), glass ionomer (AG) and resin (AR) cement accordingly under 50 N static finger force.
Marginal adaptation and microleakage. S. Pilathadka, R. Slezak, V. Srinivasan, R. IvancakovaPrecision of marginal adaptation of the incisor and molar Procera allceram crown copings. The marginal adaptation was evaluated using the replica technique. El-Mowafy OM. Marginal adaptation and microleakage of Procera AllCeram crowns with four cements.
Int J Prosthodont. Vertical marginal discrepancy of ceramic copings with different ceramic materials, finish lines, and luting agents: an in vitro evaluation.
J Prosthet. The purpose of this study was to evaluate and compare the microleakage and marginal discrepancy of ceramic crown-copings fabricated by three different CAD/CAM systems. Material and methods: Thirty extracted premolars were prepared for complete all-ceramic crowns with: total convergence degree, 2 mm occlusal reduction, mm height, mm circular reduction and chamfer marginal preparation.
Albert FE, El-Mowafy OM. Marginal adaptation and microleakage of Procera AllCeram crowns with four cements. Int J Prosthodont. ; 17(5): el-Mowafy O. The use of resin cements in restorative dentistry to overcome retention problems. J Can Dent Assoc.
; 67(2):. Results. There were significant differences between marginal fit of chamfer and shoulder finish line groups before and after porcelain firing (p= and p=respectively).The marginal gap of copings with shoulder finish line was significantly smaller than those with chamfer configuration (p= ), but there were no significant differences between the two marginal designs, after.
Purpose. The purpose of this study was to evaluate the marginal adaptation of zirconium dioxide copings made with 2 different CAD/CAM systems, the Lava All-Ceramic System (scanning definitive dies made with conventional impressions) and the Lava Chairside Oral Scanner (scanning directly from the prepared tooth).
The copings were seated on abutments using a special holding device that facilitated uniform loading, and marginal adaptation was assessed using a stereomicroscope. With resin cement, 34% of Procera AllCeram and 96% of metal-ceramic copings exhibited 0 microleakage. Procera AllCeram copings had a significantly larger mean marginal.
Fixed prosthodontics is a routine dental treatment and microleakage is a major cause of its aim of this study was to assess the marginal microleakage of four cements in metal ceramic restorations with adapted and open sound human.
Statement of problem. The marginal and internal adaptations of porcelain laminate veneers (PLVs) are key elements in their long-term success. However, the marginal and internal fit obtained with a pressable material compared with computer-aided design and computer-aided manufacturing (CAD-CAM) needs further investigation as does the choice of cement used.
A set of six individual crown preparations was duplicated 12 times yielding 72 plaster dies. Slip‐cast (In‐Ceram Zirconia ®), heat‐pressing (Empress II ®) and CAD/CAM crown‐copings (Cerec inLab ®, DCS ®, Decim ® and Procera ®) were seated on 12 dies each. Marginal and internal gap width was measured in the SEM at × magnification.
Marginal integrity is a key factor in the success of restorations. In cemented restorations it means close adaptation of the prosthesis margin to the finishing line of prepared tooth.
Gaps in margin render the tooth susceptible to caries, pulpitis and periodontal disease [1–3]. Improving adaptation can increase longevity of treatment and the. Albert FE, El-Mowafy OM. Marginal adaptation and microleakage of Procera Allceram crowns with four cements.
Int J Prosthodont. Sep-Oct;17(5) [ Links ] 4. Gorman CM, McDevitt WE, Hill RG. Comparison of two heat-pressed all-ceramic dental. Thirty copings (Procera AllCeram) of mm thickness were manufactured.
Three types of luting media were used: zinc phosphate cement (Elite), glass ionomer cement (Fuji I), and dual-cured.
Crown adaptation is defined by the measurement of the marginal and internal gaps of the restoration. 1 An increase in the marginal gap could increase cement dissolution, thereby increasing the potential for microleakage, plaque accumulation, recurrent caries and periodontal disease. 2 On the other hand, an increase in the internal gap could.
10 Albert FE, El-Mowafy OM. Marginal adaptation and microleakage of Procera AllCeram crowns with four cements. Int J Prosthodont ; 17 (05) ; 11 Nawafleh NA, Mack F, Evans J, Mackay J, Hatamleh MM. Accuracy and reliability of methods to measure marginal adaptation of crowns and FDPs: a literature review.
J Prosthodont ; 22 (This study compared the internal and marginal gap between CAD/CAM copings to determine the clinical acceptability.
Hundred dental stone duplications of a metal major maxillary molar die were fabricated and separated into five. All copings were produced by milling and laser sintering method in the form of twenty groups.
At x magnification, marginal and internal gaps of each coping were.2 - Albert FE, El-Mowafy OM. Marginal adaptation and microleakage of Procera AllCeram crowns with four cements. Int J Prosthodont.
;17(5) [ Links ] 3 - Baig MR, Tan KB, Nicholls JI. Evaluation of the marginal fit of a zirconia ceramic computer-aided machined (CAM) crown system. J Prosthet Dent. ;(4) [ Links ].