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Posts for: June, 2015

By Comprehensive Dental Group
June 25, 2015
Category: Dental Procedures
Tags: crowns  

The traditional way to restore a tooth with an artificial crown takes several weeks and multiple office visits: from tooth preparation and impression molding to crown production by a dental laboratory, followed by adjustments and cementing. Now, there’s an alternative that reduces this process to a fraction of the time, and all from your dentist’s office.

Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) is a digital system that enables dentists to create dental restorations with laboratory-grade materials in minutes rather than weeks. As it continues to innovate, you’ll see more and more dentists investing in the new technology for their patients.

A crown restoration with CAD/CAM begins like any other with decay removal and preparation of the tooth. It diverges, though, from the traditional in how an impression of your teeth and gums is obtained: instead of rubber-like molding materials to create a physical impression, we lightly dust the mouth interior with a reflective powder. Using a scanning wand, the reflective powder allows us to capture multiple, detailed images of your mouth that the CAD/CAM computer transforms into an accurate three-dimensional model.

We use the model to first assess if the tooth has been effectively prepared for a restoration. If so, the design feature of the system will provide us with thousands of tooth forms to choose from to match with your natural teeth. You’ll be able to view the proposed size and shape of the new crown via computer simulation before signing off on the design.

Next is the actual manufacture of the crown that takes place right in the dentist’s office. A pre-formed block of ceramic material is inserted in the milling equipment where, following the pre-determined computer design, the milling heads carve the ceramic block. After milling, we fine-tune the crown surface and apply stains or glazes fired to create a life-like color and texture that matches your natural teeth. We can then adjust the crown in your mouth and permanently affix it to the tooth.

While much of the CAD/CAM system is automated, ultimate success still depends on the dentist’s expertise and artistry. CAD/CAM enhances those skills with greater precision and in much less time than traditional crowns. It’s certainly a growing option for many people to restore the form and function of decayed teeth.

If you would like more information on computer-aided dental restorations, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Creating In-Office Dental Restorations with Computers.”

By Comprehensive Dental Group
June 19, 2015
Category: Dental Procedures
Tags: CEREC Crowns  

If you've needed crowns on your teeth, you may recall the hassle of the process. A thick, goopy paste is used to make the needed impressions; it tastes strange and can cause gagging or choking. You probably visited your dentist's office multiple times for fittings and CEREC crowns other appointments before the crown fit properly. However, Comprehensive Dental Group in Stamford, Connecticut has totally streamlined the process by using CEREC 3D technology. you can now leave with your final restoration in just a few hours with little to no discomfort.


The CEREC is a computer-aided system used in the dental industry. Dr. Irina Pogosian and Dr. Thomas Ohlson use a small wand-like device called an intra-oral scanner to acquire pictures of your teeth. Through a computer program, these pictures are then made into a 3D image. From there, your Stamford dentist can create a model of your restoration on the computer in about 15 minutes. A 3D manufacturing device then carves out your new restoration on ceramic in just 20 minutes or less. The crown will fit perfectly, meaning there will be no need for follow-up appointments, extra anesthetic, or uncomfortable temporary crowns.


Because your Stamford dentist takes digital impressions of your teeth, you'll be much more comfortable than when you've received a traditional impression in years past. Traditional impressions are uncomfortable to wear and difficult to remove, leaving the pasty material behind. Digital impressions simply employ the intra-oral scanner; it rests in your mouth while a staff member at Comprehensive Dental Group takes a few pictures. The whole process takes minutes and there is no discomfort involved.


Taking impressions "the old way" with a tray full of putty isn't an exact science, meaning that the resulting restorations usually do not fit correctly the first or even second time. CEREC digital impressions, however, are incredibly accurate because the restorations are processed from high-quality images of the teeth. Digitally-made impressions have about 15-20 microns of error (which is less than the width than a human hair). Your crowns, therefore, are likely to fit as soon as they're finished being carved at your Stamford dentist's office.

The entire CEREC system provides a safe, comfortable and easy way to get a crown from start to finish. If you need a restoration and want to experience this technology, contact the dental offices of Dr. Pogosian and Dr. Ohlson today!

By Comprehensive Dental Group
June 10, 2015
Category: Oral Health

For major-league slugger Giancarlo Stanton, 2014 was a record-breaking year. After the baseball season ended, he signed a 13-year, $325 million contract with the Miami Marlins — the biggest deal in sports history. But earlier that same year, Stanton suffered one of the worst accidents in baseball: He was hit in the face by an 88-mph fastball, sustaining multiple fractures, lacerations, and extensive dental damage.

After the accident, Stanton didn’t play for the remainder of the season. But now he’s back in Spring Training… and he’s got a not-so-secret weapon to help protect him against another injury: A custom-made face guard designed to absorb impacts and keep him from suffering further trauma.

As sports fans, we’re glad that Stanton was able to overcome his injury and get back in the game. As dentists, we’d like to remind you that you don’t have to be a major-league player to feel the harmful effects of a sports injury — and you don’t have to look far to find a way to protect yourself. In fact, you can get a custom-made mouthguard right here at the dental office.

Mouthguards have a long tradition in sports like football, boxing, and hockey. But did you know that far more Americans are injured every year playing “non-collision” sports like basketball, baseball — and even bicycling? And it doesn’t take a major-league fastball to cause a dental injury: The highest incidence of sports-related dental injuries occurs in 15-to-18-year-old males. In fact, about one-third of all dental injuries among children stem from various types of sports activities. These injuries may result in countless hours being lost from school and work, and cost significant sums for treatment and restoration.

Mouthguards have a proven track record in reducing dental and facial injuries: They are capable of absorbing the energy of a blow to the mouth, and dissipating it in a way that prevents damage to facial structures and teeth. But not all mouthguards are created equal: Custom-fabricated mouthguards, which are produced from an exact model of your mouth made right here in the dental office, offer by far the best protection. They fit better and safeguard the teeth more fully than any off-the-shelf or “boil-and-bite” type can. Plus, they’re more comfortable to wear. And let’s face it: No mouth guard can protect your teeth if you don’t wear it.

What’s more, some recent studies indicate that custom-made mouthguards may offer significant protection against concussion. An increasing awareness of the dangers that concussion may pose to athletes is one more reason why we recommend custom-made mouthguards to active people and their families.

To get his face guard, Giancarlo Stanton reportedly went to a specialist sporting-goods manufacturer in Illinois, and paid around $1,000. But you can get a custom-made mouthguard for yourself or your loved ones right at our office for a fraction of that price. And the peace of mind it can give you is… priceless.

If you have questions about custom-made mouthguards, please contact us or schedule an appointment for a consultation. You can learn more by reading the Dear Doctor magazine articles “An Introduction to Sports Injuries & Dentistry” and “Athletic Mouthguards.”