ROE fabricates temporaries for nealy all situations, be it immediate implants, long-term crown and bridge temps, onlays to test bites, or just mock-ups. All our temps are fabricated using digital technology, which leads to precision, 3D previews, and lots of options.
Laboratory fabricated provisionals have always presented challenges – the need for chairside additions, relining with limited material thickness, and insufficient material choices, all inhibit optimal esthetics and strength. Denture teeth bonded together with acrylic are esthetic, but usually do not offer long-term strength. Light-cured composites are a possibility; however, they can be difficult to reline and even harder to add-to or modify chairside. Processed acrylic has traditionally been the best compromise. With the use of CAD/CAM technology, ROE is now offering provisional restorations fabricated from a special dense, porosity-free polymethyl-methacrylate commonly called PMMA, which is milled in our industrial milling machines. Technicians use our powerful CAD system to design ideal anatomy and contours with materials much stronger than hand-mixed acrylic.
The benefits extend beyond strength and contours. Using our CAD/CAM system we can digitize a preoperative model or diagnostic wax-up and superimpose it over a study cast. This process allows us to maintain beneficial contours and precisely duplicate a patient-approved diagnostic work-up.
Due to the strength of the material we are able to mill single unit shells and even full arch bridges as thin as 1/2mm. Once the milling is complete we characterize the units with stain and, when needed, customize with layering materials, particularly when incisal translucency is requested.
When extra-strong, long-term provisionals are required, these shells can be reinforced internally with a CAD metal substructure. Both the outer shell and the inner reinforcement are fabricated using the same digital technology. Due to the accuracy of the fabrication process, the combined layers can be made thinner than hand-fabricated, metal-reinforced temporaries.
We also recently started using alternative reinforcement materials in lieu of cast metal. Fiber reinforcement (FiberForce) and Polyetheretherketone (PEEK) are durable materials with high flexural strength. And, since both are white, they can be easily hidden within the provisional.
Whether provisionals are to be utilized as a tool to determine function or a means of esthetics during restoration fabrication, our staff has the knowledge and experience to fabricate provisionals to meet your goal.
- Stronger – Dense porosity-free PMMA acylic
- Thinner – Due to better materials and processing, these provisionals can be made very thin, even allowing for metal reinforcement.
- Accurate – CAD design allows precise duplication of study casts of diagnostic wax-up or study model crown and bridge provisionals
- Guaranteed – They are guaranteed from breakage for 6 months. This involves remilling the original design. If replacement is needed after 6 months, we will send you a duplicate at 50% the original fee.
- Fast – From a single unit to a full mouth reconstruction, these are made in just 3 days!
- Familiar – These are easy to work with clinically and can be relined with acrylic or composites.
When a patient presents with a challenging bite, ROE offers high-strength, esthetic, CAD/CAM diagnostic temps. From master casts, a bite registration and a Smile Simulation and / or photographs, ROE will deliver a milled PMMA or ‘snap-on-smile’ type provisional that my be tried-in or cemented. This provisional is adjusted until satisfaction, impressed and utilized as the new master casts.
Indications: over-closed patients, partially edentulous with tough bites, loss of habitual bite, cross-bites. When several teeth are missing, request the case as full arch for try-in and esthetic check, then remove the cantilever before dismissing patient.
Contraindication: malocclusion that would not allow fit of prosthetic, edentulous arches, other.
This provisional is strong, but cantilevers are limited to single units. If the use is try-in only, then cantilevers are possible with additional units.
This service is available for digital or conventional impressions.
Recommended optional records: articulated casts, facebow, Fox Plane, stick bite etc.
Time: 6 Lab Days
Option: Virtual dignostic wax-up, resin model, matrix
Records:Max / Man full arch impressions or master casts, CR or CO
PMMA, disc (Polymethylmethacrylate) are tough, shaded industrial resins that provide multiple options for long or short term temporary restorations. This ultra aesthetic temporary material is available in various shades, giving the restoration the most natural look possible.