Dentists who use computer-aided design/computer-aided manufacturing (CAD/CAM) systems know the chair-side technology is extremely valuable in producing dental prostheses on-site within a short time frame. With this technology, dentists can produce crowns, veneers, implants, and more from their office.

For many years, Cerec systems were the only chair-side CAD/CAM machines available. The E4D system, first released to the market in 2008, is a worthy upgrade investment.

One of the biggest advantages of the E4D system is that dentists will no longer have to dust the patient’s teeth with titanium powder before initiating the imaging process required to design restorations. The E4D system also scans images of the tooth from different perspectives, allowing for more detail, while the Cerec system takes images only once.

Even the milling process is improved on the E4D system; the computer sends instructions to the mill and is then freed for another job. The Cerec computer is freed only when the milling process is complete.

About Carl Henley: Dr. Carl Henley received his dentistry degree from the Northwestern University Dental School in 1983. Since 2000, he has owned and directed Center for Dentistry in Naperville, Illinois, which has replaced its Cerec machines with the E4D system.


Carl Henley, DDS, supports the oral health of his Naperville, Illinois, patients through state-of-the-art dental care.

Nanotechnology may soon change the way that dentists treat cavities. Currently, many fillings fail due to secondary cavities near the original site. While traditional dentistry can remove most of the damaged tissue, it’s impossible to remove all bacteria in the tooth. Now, researchers at the University of Maryland School of Dentistry in Baltimore have created a composite filling that may help neutralize the bacteria and rebuild the damaged tooth.

The new filling uses a primer and adhesive containing silver nanoparticles and quaternary ammonium. These give the primer and the adhesive antibacterial properties and prevent the bacteria from creating tooth-damaging acid. The composite fillings also contain calcium phosphate nanoparticles to help regenerate the damaged tooth. In a laboratory setting, the fillings seemed to accomplish both goals. Researchers next plan to test them on animal teeth and on human volunteers in Brazil.

posted at Public DomainThe Academy of General Dentistry has found in a survey that nearly everyone believes that a healthy, bright smile is critical in terms of social confidence. Many individuals seek to enhance their smiles through teeth-whitening procedures. However, there are various teeth-whitening procedures to choose from, depending on specific types of cosmetic and oral health concerns. It is important to consult with a dentist to learn about which types of teeth-whitening techniques may be appropriate for you, depending on age and oral health. The Academy of General Dentistry recommends individuals to be at least 14 years old before considering teeth whitening.

The type of teeth-whitening procedure that may be appropriate for an individual depends on the level of brightness desired, in addition to the oral health of each individual. Over-the-counter products may helpful for minimizing coffee or tea stains. However, at-home, unsupervised teeth-whitening products may not be appropriate for those with sensitive teeth, gum disease, and various types of discoloration. The American Academy of Cosmetic Dentistry states that it is safer to seek teeth-whitening procedures from a dentist. Procedures such as in-office teeth bleaching or dentist-supervised, custom-made mouthpiece trays may provide a greater level of control over outcomes. For example, in-office teeth whitening can achieve many levels of brightness. Additionally, dentist-supervised or in-office procedures can help to avoid specific gum issues.

About Dr. Carl Henley: A long-time dentist in Illinois, Dr. Henley has extensive experience with patient consultations, treatment plans, screenings, and high-tech procedures, with a focus on new techniques. Dr. Henley holds numerous professional memberships, such as with the American Dental Association and the Illinois State Dental Society. His practice, Center For Dentistry, is located in Naperville, Illinois.