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Production time is seven working days in the laboratory

Monolithic Zirconia Crowns & Bridges

When fabricated as a monolithic restoration, zirconia has the highest flexural strength and fracture toughness of any tooth-colored material. When properly polished by the dental laboratory, zirconia restorations achieve an extremely smooth surface texture that is kind to opposing dentition. These physical properties have made monolithic zirconia restorations a popular alternative to cast alloy restorations in the posterior region.

Indications & Recommendations
Zirconia is indicated for crowns and bridges anywhere in the mouth. However, due to the optical properties of the material, we recommend its use be limited to posterior restorations.

Adjustments
Occlusal*: In order to maintain the extremely smooth occlusal surface of polished zirconia, care must be taken when making occlusal adjustments. For minor occlusal adjustment, it is recommended to adjust the opposing tooth. If that is not possible, the Brasseler Dialite Intral Oral Adjustment and Polishing Kit provides the necessary instruments for reducing zirconia. To properly polish zirconia, the restoration must be polished with a diamond polishing paste.

Internal: For minor adjustments, it is recommended to adjust the preparation. If the internal aspect must be altered, a sharp diamond with irrigation is recommended to minimize the generation of heat.

*Failure to achieve a mechanical polish of zirconia restorations, by the lab or dentist (after adjustment), can be detrimental to opposing dentition due to the hardness and abrasiveness of unpolished zirconia.

Cementation
Monolithic zirconia restorations can be conventionally cemented with your crown and bridge cement of choice. Due to its crystalline structure, zirconia crowns cannot be etched and therefore cannot be adhesively bonded. For increased adhesion through chemical bonding, Multilink® Automix by Ivoclar is recommended .

Workmanship
All restorations are manufactured in our laboratory in Nouakchott, under our supervision and Quality Management System guidelines. This ensures your patients consistently receive only the highest quality restorations. Production time is seven working days in the laboratory.

Additional Resources
Mr TARIQ BADWAN are available for case consultations. Call +222-46727777 Or +222-26727777 and ask for him .

Information regarding shade communication.

Micro-Layered Zirconia

Zirconia has the highest flexural strength and fracture toughness of any tooth-colored material used in dentistry. Its optical properties generally limit it to posterior restorations. However, in an effort to increase its indications, manufacturers have modified the chemical composition to increase the translucency of the material. This has reduced its physical properties. Rather than utilize these weaker versions of zirconia in the name of esthetics, we have developed a restoration that improves the esthetics of monolithic zirconia without compromising its advantages. We call it Micro-Layered Zirconia. It consists of a zirconia crown or bridge that has been designed to have a thin layer of porcelain applied to the visible, non-functional surfaces of the restoration.

Indications & Recommendations
Micro-Layered Zirconia is indicated for crowns and bridges anywhere in the mouth.

Cementation
Micro-Layered Zirconia restorations can be conventionally cemented with your crown and bridge cement of choice. Due to its crystalline structure, zirconia crowns cannot be etched and therefore cannot be adhesively bonded. For increased adhesion through chemical bonding, Multilink® Automix by Ivoclar is recommended.

Workmanship
All restorations are manufactured in our laboratory in Nouakchott , under our supervision and Quality Management System guidelines. This ensures your patients consistently receive only the highest quality restorations.

Production time is seven working days in the laboratory.

Porcelain Fused to Cad Cam Zirconia

Over the years, Zirconia has proven to be sufficiently strong when used as a core material. However, due to a number of differences in the handling characteristics of zirconia versus metal alloys, the structural makeup of veneering porcelain is significantly different. As a result, while zirconia porcelain is very esthetic and kind to opposing dentition, it does have a fracture toughness that is 33% lower than porcelain used for PFMs. Therefore, copings and frameworks that provide optimal porcelain support are crucial to the durability of zirconia-reinforced restorations. Clinical studies, as well as our own observations based on 50,000+ units fabricated over the past 15 years, reveal that there is a higher incidence of chipping of the veneering porcelain with these restorations.

Indications & Recommendations
Although many manufacturers advocate the use of porcelain fused to zirconia restorations in all areas of the mouth, we recommend restricting their use to single crowns and 3-unit bridges in the anterior region. Cases involving posterior teeth can only be recommended with prior case consultation and evaluation.

Cementation
ZCore+ restorations can be conventionally cemented with your crown and bridge cement of choice. Due to its crystalline structure, zirconia crowns cannot be etched and therefore cannot be adhesively bonded. For increased adhesion through chemical bonding, Multilink® Automix by Ivoclar is recommended.

Workmanship
All restorations are manufactured in our laboratory in Corvallis, Oregon under our ISO 9001:2015 and DAMAS Quality Management System guidelines. This ensures your patients consistently receive only the highest quality restorations. Production time is seven working days in the laboratory. Multilink® is a registered trademark of Ivoclar Vivadent, Inc.

About Technology

The fabrication of precise-fitting fixed restorations presents a number of challenges. TRUfit, our proprietary manufacturing system, enables us to meet these challenges. It blends the consistency and precision of CAD/CAM technology with the best aspects of the dental technician’s knowledge, experience, and technical skills.

TRUfit is the result of years of research and development by DENTECH Dental Lab. It consists of five main elements:

An acquisition unit, used to create digital files of physical casts.
CAD software used to virtually design restorations from the digitized models.
CAM software used to convert a virtual dental restoration into instructions for producing a physical object.
Manufacturing equipment, which executes those instructions with the highest degree of accuracy, assuring the most precise fit possible in a wax pattern.
The dental technician responsible for overseeing each stage of the process and refining all other requirements of a proper wax-up.

The first step in any process utilizing CAD/CAM technology is converting a physical object into a digital file. Since the final result is predicated on the accuracy of this digital file, we utilize proprietary scanners that are the most precise in the dental industry.

Our technicians then virtually design the case using our proprietary software to create a digital file of the final restoration. This file must then be converted into an instruction set that is interpreted by one of our mills.

To accomplish this conversion it was necessary for us to develop our own CAM software code. This code is then sent to an actual industrial mill that then renders the wax pattern using rigorously tested and selected precision cutting tools specific to this task. The result is a wax pattern with a precise fit that is superior to any produced by conventional manufacturing methods or any other commercially available CAD/CAM system. After milling, the wax pattern must then be refined, and it is at this point that the experience and expertise of our technicians take over.

TRUfit is used in the fabrication of most of our cast alloy, PFM and Enamelux restorations and as with all of our processes is applied in accordance with our standards. TRUfit continues to evolve and with periodic modifications we are able to keep improving the quality of our restorations.

Porcelain Fused To Metal

Dentech Dental Lab has been fabricating porcelain fused to metal restorations since 1990. However, the PFMs we currently fabricate exhibit improved fit and function as a result of our innovative manufacturing techniques and meticulous attention to detail.

The internal adaptation and marginal fit of the metal framework are critical factors in the longevity of a PFM restoration. Designing restorations, and waxing up the most accurate wax patterns possible from a solid block of wax. This eliminates the distortion from shrinkage. Accurate wax patterns are vital for a successful PFM.

Our PFM copings and frameworks are cast with an induction casting machine. The alloys we offer were extensively researched for compatibility with our dental porcelains. Coefficient of thermal expansion (CTE) compatibility and creation of an oxidation layer are crucial to maximizing the mechanical, chemical, and compressive bond.

Accurate firing cycles and temperatures are critical to maximizing the optical and physical properties of any porcelain. We employ the highest quality porcelain furnaces that self-regulate and calibrate in order to consistently and accurately fire our porcelain restorations. Next, our technicians refine anatomy and develop proper occlusal contacts. Stain and glaze is applied as a final step in the manufacturing process.

Finally, designated quality standards personnel verify your case meets our specifications.

Your prescription is reviewed and the fit, margins, contacts, and occlusion are inspected under magnification. Interproximal contacts are checked on solid models, and margins are verified on separate margin dies whenever multiple pours can be accomplished.

Implants

Regardless of case complexity,
our highly skilled team of implant specialists
are here to support you.

Providing Successful Implant Restorations Since 2008

Given the inherent complexity of restoring implants and the variable nature of their restorative options, staying current with the latest developments in the implant industry is a challenge. Entrust your cases to a lab that:

Is experienced in working with all major implant systems, both current and obsolete.
Has attended, sponsored, and taught hundreds of hours of implant-related continuing education courses.
Participates in trials for restoring implants .

Achieving optimal results for your patients means partnering with a dental laboratory that has a proven history and demonstrated commitment to successfully restoring implants. To ensure a successful result. Dentech Dental Lab:

Provides expert treatment planning, treatment sequencing, and production estimates upon request.
Uses the latest technology and training available, enabling us to scan and digitally design or submit surgical guides, abutments, and substructures.
Is able to incorporate individual preferences with respect to margin placement, emergence profile, anatomy, and occlusion into your implant restoration.

Start to finish, implant cases require more planning and expertise compared to conventional restorative cases. At O’Brien Dental Lab, every implant case is evaluated and closely monitored by our Implant Specialist, Alex Rugh. He is the only Certified Dental Technician (CDT) in Oregon with a specialty in implants.

Additional Resources

Mr TARIQ BADWAN are available for case consultations. Call +222-46727777 Or +222- 26727777 and ask for him, or request a call on your Rx.

Information regarding shade communication and shade photography.

Shade photos can be emailed to trq607@gmail.com.

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