What You Need to Know About CEREC Dental Crowns:
Cerec crowns are a type of dental implants which are used to correct imperfections in teeth. They have been around since the 1950’s and were first developed for children. Since then they have become popular among adults too. Cerec crowns come in many different types such as porcelain, plastic, titanium, stainless steel and even ceramics. Most of them are made from either titanium or zirconium.
Zirconium is a naturally occurring metal found in some rocks and crystals. These metals are very strong but brittle so they break easily when pushed together. When combined with another material these materials tend to form something called a ceramic, which is harder than diamond but not quite as hard as platinum. Ceramic crowns are usually made from one of these materials.
Zirconium and Titanium are both extremely strong metals, however they aren’t the strongest. Steel is stronger than any other metal and it takes much less energy to fracture a piece of steel than it does to crack a zirconium or titanium implant. However, if you push two pieces of titanium or zirconium together enough they will eventually fuse into each other forming what is known as a “fused” or “weld” junction. Dental implants can be made from steel but they are much more brittle. A steel implant is prone to shattering if enough pressure is put on it, which can make them very dangerous.
If a patient bites down too hard on an object the force of the pressure can cause the implant to shatter. This can lead to pain, infection, and even the need for a replacement.
This is why most dentists use a non-steel implant when they can. They are more expensive but they are less risky. If you were to make a comparison between steel and non-steel dental implants it would be like comparing a wooden club to a metal baseball bat. Both can be used as weapons and they can both break arms, legs, and skulls but the metal bat is much more likely to cause a brain injury or kill someone than the wooden club.
However, if you want the strongest metal there is, then you should go with platinum. This metal is so strong that it can only be scratched by a diamond and it is also very expensive. Some dentists use platinum dental implants but they are extremely rare.
CEREC crowns are often made from a type of zirconium called zirconia-crystal-reinforced zirconium or more commonly known as zircore. It is more expensive to use zircore than to use regular zirconium but it is stronger so the crowns don’t need to be replaced as often. The metal is very strong but it can still be scratched by a diamond.
I hope this helps!
Sources & references used in this article:
Near-surface damage-a persistent problem in crowns obtained by computer-aided design and manufacturing by D Rekow, VP Thompson – … , Part H: Journal of Engineering in …, 2005 – journals.sagepub.com
Integrating the CEREC technology at UT College of Dentistry by M Dehghan, JF Simon, J Harrison – … of the Tennessee Dental …, 2012 – researchgate.net
The use of CAD/CAM in dentistry by G Davidowitz, PG Kotick – Dental Clinics, 2011 – dental.theclinics.com
All That You Need to Know About Same-Day Crowns and Dental Emergencies by S Reconstructions, D Good, DG Calendar – dionhealth.com
All you need to know about CAD-CAM by D Anju, A Upendran, A Jayakumar… – Indian Dental …, 2019 – idaattingalbranch.org
… You have Cerec Connect for everything else. by J Haselbauer – International journal of computerized dentistry, 2009 – europepmc.org
Impressions are changing: deciding on conventional, digital or digital plus in-office milling by GJ Christensen – The Journal of the American Dental Association, 2009 – healthmantra.com
Fracture strength of minimally prepared all-ceramic CEREC crowns after simulating 5 years of service by N Skouridou, S Pollington, M Rosentritt, E Tsitrou – Dental Materials, 2013 – Elsevier
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