COVID-19 Update: 21st Century Esthetics Is Open
We understand the difficulties dentists are facing during the Coronavirus crisis, especially in New York. Our lab is open for all emergency cases. Please call the laboratory at 516-519-8114 to schedule a free local pick-up.
The highly customizable IPS e.max® is made out of lithium disilicate glass-ceramic and can be fabricated as a full-contour monolithic or cut-back and layered with porcelain. Due to its five levels of translucency, this option is the most esthetic all-ceramic solution. Due to its proven clinical success, this restoration is an industry standard. IPS e.max offers minimally invasive restorations with flexural strength of up to 500 MPa. Additional impulse ingots available for maximum flexibility.
SEND A CASEIPS e.max is the premium lithium disilicate, glass-ceramic restoration. Combining lifelike materials and fracture resistant properties, IPS e.max is as durable as it is lifelike. The flexibility of IPS e.max makes it an excellent restorative method for anterior esthetics or posterior function.
Bridges which include molars, Maryland style bridges, and bridges which have a short vertical height that does not allow for adequate connector height.
Anterior full-coverage crowns require a chamfer or shoulder margin. A circular shoulder is prepared with rounded inner edges or a chamfer at an angle of 10-30°: the width of the shoulder/chamfer is approx. 1 mm. Facial reduction is 1.5 – 2 mm; 1 – 1.5 mm lingual contact clearance. Incisal reduction is 1.5 – 2 mm with rounded internal line angles, and an incisal edge at least 1mm wide to permit optimum milling of the incisal edge during CAD/CAM processing.
Posterior full-coverage crown requires a chamfer or shoulder margin. A circular shoulder is prepared with rounded inner edges or a chamfer at an angle of 10-30°: the width of the shoulder/chamfer is approx. 1 mm. Occlusal reduction is 1.5 – 2 mm: axial reduction (buccal, lingual, and interproximal) is 1.5 mm with rounded internal line angles.
IPS e.max layered – can be cemented using a resin reinforced glass ionimer such as RelyX Luting cement. Or bonded using a resin cement when extra strength is needed due to lack of retention on the prep, use a resin cement such as RelyX Unicem or RelyX Ultimate.
If adjustments are needed, use fine diamonds with water and light pressure. Always remove the crown when adjusting or bond/cement crown before adjustments are made.).
D2740 Crown
D2610 Inlay for 1 surface
D2620 Inlay for 2 surfaces
D2630 Inlay for 3 surfaces
D2962 Labial Veneer
D2783 Crown 3/4 Porcelain Ceramic (does not include veneers)
A tried-and-true dental restoration, full cast crowns have over a century’s worth of proven durability and longevity. Our high-quality full cast restorations can last a lifetime with proper maintenance. They are fabricated out of noble and high noble alloys, which allows them to provide strength, extreme durability, biocompatibility, and gentleness on opposing dentition. They are ideal options for the posterior region where there is minimal room outside of the esthetic zone.
SEND A CASEFull-cast gold crowns are indicated for crowns, veneers, inlays, onlays, and bridges.
Full-cast gold crowns are contraindicated for partials and implants.
Inlays and onlays can also be fabricated as a full-cast restoration. Feather-edge margin preparations are indicated for full-cast restorations, but any margin preparation may be used.
Panavia 21 (Must be tin plated if precious metal is used)
Glass ionomer cement (GC Fuji, GC America)
Zinc Phosphate Polycarboxylate Resin Ionomer cement (RelyX, 3M ESPE)
All castings are made with a metal alloy, be it non-precious, semi-precious or precious metals. Alloys are classified by their content.
Base – contents include non-precious, Chrome Cobalt or Titanium
Noble – consists of 25 percent precious alloy
High Noble – consists of 60 percent precious metal with at least 40 percent being gold
Alloy type refers to the hardness and/or softness of the material.
Type I – Extra soft
Type II – Soft
Type III– Hard
Type IV – Extra Hard (Rigid)
Non-Precious, Noble 20, White High Noble – Type IV – Very hard and rigid. These crowns are more difficult to adjust and re-polish than alloys with a high gold content.
Full Cast 40 – Type III – Yellow high noble alloy. Brand name currently used is Argenco 40 HN.
Full Cast 52 HN – Type III – Yellow high noble alloy. Brand name currently used is Argenco 52.
Full Cast 75- Type III – Yellow high noble and is an upgrade from full cast 52. The gold is slightly more yellow in color. Brand name currently used Argenco 75.
D2790 Crown Full-Cast High Noble Metal
D2791 Crown Full-Cast Predominantly Base Metal
D2792 Crown Full-Cast Noble Metal
For patients who need a temporary restorative solution, our PMMA Provisionals are a high-quality option. They are fabricated out of a dense block of PMMA, which allows them to provide durability and high esthetics due to their translucency.
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Porcelain-fused-to-metal restorations have stood the test of time. The durability and strength of the metal combines with the esthetics of the porcelain, which mimics natural dentition. This dental restoration provides lasting service due to its quality alloys and layered porcelain.
SEND A CASEOur PFMs can be used for crowns and bridges (up to fourteen units). PFMs can be manufactured to nonprecious, semiprecious, and yellow high noble copings and can be used in conjunction with cast partials and implants.
Contraindicated when the patient has a metal allergy or when the size of the tooth pulp is negligibly smaller, thus compromising the tooth preparation process. It is also contraindicated when the clinical tooth crown is very short and lacks the required stability including retention that is enough to provide the space for porcelain and metal.
The ideal preparation for PFMs is a chamfer margin preparation. If a porcelain labial margin is prescribed, then a shoulder margin preparation is required.
Feather-edge margin preparations are indicated for full-cast restorations.
Panavia 21 – tin plated
Glass ionomer cement (GC Fuji, GC America)
Zinc Phosphate Polycarboxylate
Resin Ionomer cement (RelyX, 3M ESPE)
If an adjustment is required on the ceramic, use a fine diamond with water and air to keep the crown cool. To contour the ceramic, polish with a pink rubber wheel and diamond polishing paste (Brasseler, Shofu, Vident).
D2750 Crown Porcelain-fused-to-high-noble
D2751 Crown Porcelain-fused-to-nonprecious
D2752 Crown Porcelain-fused-to-semiprecious
D6750 Crown Porcelain-fused-to-high-noble (bridge units)
D6752 Crown Porcelain-fused-to-semiprecious (bridge units)
D6751 Crown Porcelain-fused-to-nonprecious (bridge units)
Our implant abutments and hybrids are fabricated for exceptional restorative results. Any of these solutions will provide your patient with optimal esthetics, strength, stability, and durability. Our implant options are compatible with all major manufactures, including Nobel Biocare®, Straumann®, and Zimmer® Biomet.
Our economy acrylic partial provides an affordable solution for partially edentulous patients. This acrylic partial can serve as a temporary restorative solution for patients, and it can be modified easily, which eliminates the need to fabricate a new partial. It is created out of hand-packed acrylic with economy teeth.
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Our cast partials are available in your choice of a high-quality chromium-cobalt alloy or Vitallium® 2000. These partials are designed to fit the specific needs of every patient and provide excellent fit and function. They also provide a level of longevity and durability that is not found in competing restorative partials. Vitallium 2000 is the premium choice for partial denture metal frameworks. It is a nickel-free and beryllium-free alloy that provides delicate cast clasp and a highly polished metal surface for the utmost in patient comfort and satisfaction.
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Your edentulous patients will be extremely satisfied with our zirconia hybrid implant bridge restorations. With unmatched esthetics, stability, and functionality, this option is a clinically proven success. Utilizing as few as four implants, our zirconia hybrid implant bridge restorations are milled from single blocks of monolithic zirconia, which offers highly translucent esthetics. This restoration will provide your patients with strength, stability, esthetics, and improved function and phonetics.
SEND A CASEWe are pleased to be able to provide shade matching for all our clients. Our highly-skilled team at 21st Century Esthetics Inc. understand the intricacies of this process and are able to give all restorations the extreme esthetics that come with exceptional shade matching.
Our full-contour zirconia screw-retained hybrid crowns are ideal restorations due to their high implant success. With no cement used on the actual abutment, this option eliminates one of the leading causes for implant failure, which is excess cement left below the margin. The crown, which is screwed into the abutment allows for extremely easy retrievability, which is safe and noninvasive. The screw access hole is filled with composite and opaquer, which provides excellent esthetics.
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