All-Ceramic

Classic Dental Studio utilizes their years of expert knowledge to craft high quality all-ceramic restorations. Our all-ceramics are either hand-waxed and pressed in-lab or fabricated using the latest in CAD/CAM technology. The demand for more advanced levels of strength and esthetics in all-ceramic restorations continues to grow, but we are confident in our ability to continue to meet all of your patient’s dental needs.

  • IPS e.max IPS e.max®
  • Porcelain Fused to Zirconia PFZ
  • Full-contour Zirconia Full-contour Zirconia
  • PMMA PMMA

IPS e.max®

All of our IPS e.max crowns are hand-waxed and pressed in-lab, which provides strength and marginal accuracy that is unmatched by CAD/CAM alternatives. This crown is created out of a lithium disilicate glass-ceramic that can be fabricated as a full-contour monolithic or cut-back and layered with porcelain for extreme customization. When you want to prescribe the most esthetic all-ceramic, choose our superior IPS e.max restorations.

Indications

IPS 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)

PFZ

Our PFZ restorations offer exceptional strength and esthetics. The lifelike appearance of porcelain is not marred by the zirconia it is layered over since it is has high translucency, unlike in traditional PFM crowns.

Indications

A CAD/CAM substitute for traditional PFM, our porcelain-fused-to-zirconia can be used for anterior and posterior crowns, crowns over implants, and bridges of up to fourteen units.

  • Attachment cases
  • Cases with less than 1 mm clearance
  • Bruxism
  • Patients who have broken a PFM crown
  • Cases that require bonding

The ideal preparation for PFZs is a chamfer margin preparation. If a porcelain labial margin is prescribed, then a shoulder margin preparation is required.

  • Resin Ionomer cement (RelyX or RelyX Unicem, 3M ESPE)
  • Maxcem Elite (Kerr)
  • Panavia F 2.0 (Kuraray) - ideal for short, tapered preparations
  • Glass ionomer cement (GC Fuji, GC America)

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).

  • D2740 Crown - porcelain / ceramic substrate

Full-contour Zirconia

Full-contour zirconia has the highest flexural strength of any ceramic restoration while still being gentle on opposing dentition. Our skilled team of technicians fabricate these restorations by using the latest in CAD/CAM technology. These monolithic zirconia crowns are an excellent option due to their combined strength and esthetics.

Indications

Full-contour zirconia is so versatile, it can be used in almost any situation from singles, bridges with any combination of abutments and pontics, inlay bridges and screw-retained implants. Also an esthetic alternative to a PFM with metal occlusion due to limited space.

When esthetic expectations are high and it is important that the restorations match surrounding natural dentition or other existing restorations. If bonding is necessary to retain the restoration, bond strength is weaker and less predictable than other ceramics.

Shoulder preparation not needed. A mild chamfer or a feather-edge margin is good. 1mm buccal, lingual, and occlusal reduction is ideal, but can go to .5mm in some areas when reduction is limited. Minimum occlusal reduction of 0.5 mm; 1 mm is ideal. Adjustments and polishing: Adjust full-contour zirconia crowns and bridges using water and air spray to keep the restoration cool and to avoid microfractures with a fine grit diamond. If using air only, use the lightest touch possible when making adjustments. A football-shaped bur is the most effective for occlusal and lingual surfaces (on anterior teeth); a tapered bur is the ideal choice for buccal and lingual surfaces. Polish full-contour zirconia restorations with the porcelain polishing system of your choice.

It is recommended that full-contour zirconia be cemented using a zirconia primer like Z-Prime from Bisco or Clearfil Ceramic Primer from Kuraray. Alternatively, a resin reinforced glass ionomer such as RelyX Luting cement can also be used. When a greater bond is needed due to the lack of a retentive preparation, use a resin cement like RelyX Unicam or RelyX Ultimate. Before cementing all full-contour zirconia crowns, the interior surface of the crown needs to be cleaned with Ivoclean (Ivoclar Vivadent - Amherst, NY). This is critical in assuring maximum bond strength.

Solid zirconia requires a cast gold type preparation. If adjustments are needed, use zirconia specific diamonds and rubber wheels polishing with diamond paste.

  • D2740 Crown – Porcelain/Ceramic Substrate
  • D6245 Pontic Porcelain/Ceramic
  • D6740 Abutment Crown Porcelain/Ceramic

PMMA

For cases that need short-term restorative solutions while the final product is designed and finished, we offer our PMMA provisional. It acts as a preventative for periodontal tissue and also provides form and function for patients.

Indications

  • Bridges
  • Full arches
  • Crowns
  • Complex cases, including multi-unit situations

Bruxism and parafunction, Pathology of bite, more than 50% of enamel affected by pathology

For facial reduction three wheel diamond depth cutter should be used for orientation grooves. For proximal reduction - round end tapered diamond bur is used as an extension for facial reduction.