Welcome to The BRIDGE, an online network from LMT dedicated exclusively for members of the Dental Laboratory community.
Followers
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Michael Kudrna, CDT
President/Owner
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Josef Kolbeck
Removable Department Supervisor
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Jordan Greenberg LAB DAY West 2013
Win an Apple iPad from DATRON!
Come find us at booth #0-1 to chat about the DATRON D5 dental mill and...(more) -
Alwyn Naraine, CDT posted about Titanium
Cc: Nobel BiocarePattern Resin vs. Titanium Framework From Nobel Biocare
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Rob Teachout, CDT, LVI, BSc responded to Kelly Fessel Carr's article
20-Implant, Full Mouth Reconstruction: a Once-in-a-Career Opportunity
Kelly Fessel Carr · Labs & Profiles · Sep 2012"Galvanic reactions and non-precious alloys
Whenever two dissimilar metals are in contact with each other...(more) -
Mike Dominguez, CDT/TE posted a photo to GC America, Inc.'s clinic
Tooth Shaded Titanium Abutment
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Jordan Greenberg LAB DAY Chicago 2013
Can't wait to see everyone in Chicago soon! I'm excited to be back in my hometown for the week.
By...(more)
Other Topics
Titanium
Material
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Implants: Now a Standard of Care
Maribeth Marsico · Management · Nov 2006
Thanks to advances in CAD/CAM technology, immediate-loading implants and internal connection designs, implants are becoming the restorative dentist's first choice in tooth replacement.
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How to Buy CAD/CAM Scanners & Milling Systems
Kim Molinaro · Digital Dentistry · May 2008
Nearly 50% of respondents to a recent LMT e-survey say they plan to invest in some type of cad/cam equipment within the next five years. If you're one of them, but are daunted by the options and don't...See more know where to start, LMT's done your homework for
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How to Fabricate An Esthetic Porcelain- To-Titanium Restoration
Luke Kahng, CDT · Technical · Jan 2012
Luke Kahng, CDT, offers his step-by-step technique for fabricating a porcelain-to-titanium restoration using Nobel Biocare's NobelProcera scanner and GC's Initial™ Titanium porcelain.
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The Kolbeck Technique
Josef Kolbeck · Technical · Mar 2012
Josef Kolbeck offers a step-by-step look at his time- and material-saving method of processing a fixed removable denture with the pouring technique that he uses at Town & Country Dental Studios in Freeport, NY.
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Going Digital: 3D Data Capture For the Fabrication of Titanium Frameworks
LMT Communications, Inc. · Technical · Aug 2012
The NextSmile virtual technique and service offers laboratories a labor-saving way to fabricate custom-milled titanium frameworks.
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Success in Designing and Processing Titanium Restorations
B&D Dental Technologies · Seminars/Clinics
Tim Tyndall, CDT, answers the question, "Why titanium?" and addresses what has changed to make it the PFM of choice. He also discusses the myth vs. reality, the steps to successfully design and process...See more titanium substructures, and an easy method for titanium porcelain application that creates lifelike restorations with a strong bond.
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Technical Tips For Titanium Restorations
For the last three years, I've been involved in titanium research and development with Precision Milling Center in West Valley City, UT, and read with interest Luke Kahng's recent article on titanium (How...See more to Fabricate an Esthetic Porcelain to Titanium Restoration, LMT November/December 2011, [Click here to Read](/articles/700)). The piece is well written and supported with excellent photography. However, I'd like to add some technique recommendations that are critical to the success of processing porcelain-fused-to-titanium restorations: - When designing the framework, follow your manufacturer's instructions regarding minimal thickness, usually .4mm for anteriors and .6mm for posteriors. - Metal preparations should always be done with SHP burs designed just for titanium. As Khang says, always cut in one direction and also use a maximum speed of 15,000rpm. - Never use more than 2-2.5 bars or 30-35 psi of pressure when sandblasting titanium. Also, sandblast at a 45o angle and never use a particle size less than 120-150 microns of pure aluminum oxide abrasive. The article instructs you to blast the inside of the frame but first blast the outer surface prior to porcelain application; the inner surface of the abutments will be sandblasted after firing cycles to remove the oxide that forms internally. To clean the inside of the abutments, use a 50-micron-grit abrasive and blast at 2 bars or less of pressure; a larger grit size can damage the margins. - After sandblasting, bench set the titanium frame for 5-10 minutes (not to exceed 30 minutes) to undergo the passivation process. This step is critical to the success of bonding to titanium; during this time, titanium naturally develops a very fine oxide layer that prevents corrosion and is the contributing factor for biocompatibility of the material. Failure to implement this step will lead to failure of the restoration. - Avoid ultrasonic cleaning after sandblasting; steam cleaning is recommended by most manufacturers. - GC recommends that its GC Initial Porcelain Ti™ Bonder be applied in a thin enough layer that the coping shines through. When applying the bonder, brush out pooling and thick streaks of the bonder for a thin, uniform coating. Properly fired bonder surfaceis dark and has a slightly shiny appearance; gray patches of fired bonder indicate the use of too much bonder. GC also recommends that the first layer of opaque is applied as a very thin wash on the Ti Bonder treated surface; apply additional layers as needed along with appropriate modifiers. Complete the porcelain buildup, finish contours, set occlusion and glaze. When polishing and cleaning titanium after the glaze, use polish wheels and high-shine compounds specifically designed for titanium. Polish the exposed titanium finish lines, wait 10 minutes for the passivation process to occur, then steam clean the restoration. This passivation process seals the surface of the titanium and prevents corrosion that would discolor the metal later.












