Posts for: September, 2018
Dental crowns are an essential means for restoring damaged or unattractive teeth. A well-crafted crown not only functions well, it looks and blends seamlessly with the rest of the natural teeth.
Crowns are artificial caps that cover an entire visible tooth, often used for heavily decayed or damaged teeth or as added protection after a root canal treatment. Most crowns are produced by a dental lab, but some dentists are now creating them in-office with computer-based milling equipment. On the whole, the various crowns now available function adequately as teeth—but they can vary in their appearance quality.
In the early to mid 20th Century the all-metal crown was the standard; but while durable, it could be less than eye-pleasing. Although more life-like dental porcelain existed at the time, it tended to be brittle and could easily shatter under chewing stress.
Dentists then developed a crown that combined the strength of metal with the attractiveness of porcelain: the porcelain fused to metal or PFM crown. The PFM crown had a hollow, metal substructure that was cemented over the tooth. To this metal base was fused an outer shell of porcelain that gave the crown an attractive finish.
The PFM reigned as the most widely used crown until the mid 2000s. By then improved forms of porcelain reinforced with stronger materials like Lucite had made possible an all-ceramic crown. They’re now the most common crown used today, beautifully life-like yet durable without the need for a metal base.
All-ceramics may be the most common type of crown installed today, but past favorites’ metal and PFM are still available and sometimes used. So depending on the type and location of the tooth and your own expectations, there’s a right crown for you.
However, not all crowns even among all-ceramic have the same level of aesthetic quality or cost—the more life-like, the more expensive. If you have dental insurance, your plan’s benefits might be based on a utilitarian but less attractive crown. You may have to pay more out of pocket for the crown you and your dentist believe is best for you.
Whatever you choose, though, your modern dental crown will do an admirable, functional job. And it can certainly improve your natural tooth’s appearance.
Your teeth’s hard, enamel coating protects them from environmental dangers or disease. But although it’s made of the hardest substance in the human body, enamel isn’t invincible — prolonged exposure to acid can cause dental erosion, a condition in which the enamel’s mineral content permanently dissolves, a process known as de-mineralization.
De-mineralization occurs anytime our mouth environment becomes too acidic due to eating or drinking items with high acid content. Saliva normally neutralizes mouth acid in thirty minutes to an hour after we eat, as well as restores mineral content to the enamel (re-mineralization). Danger arises, though, if the saliva’s buffering action is overwhelmed by chronic acidity, caused mainly by constant snacking or sipping on acidic foods and beverages throughout the day — in this situation, saliva can’t complete the process of buffering and re-mineralization.
As a result, the enamel may permanently lose its mineral content and strength over time. This permanent dental erosion leads to serious consequences: the teeth become more susceptible to decay; the dentin becomes exposed, which causes pain and sensitivity to pressure and temperature changes; and changes in the teeth’s size and color can negatively alter your appearance.
It’s important to take action then before dental erosion occurs. Along with daily oral hygiene, restrict your consumption of acidic foods and beverages to meal times and cut back on between-meal snacks. Rather than a sports drink after exercising, drink nature’s hydrator — water. You should also alter your brushing habits slightly — rather than brush right after you eat, wait thirty minutes to an hour. This gives saliva time to restore the mouth to its normal pH and re-mineralize the enamel. Brushing right after can remove even more of the minerals in softened enamel.
If significant erosion has occurred, there are a number of treatment options we can undertake to preserve remaining tooth structure and enhance your appearance. In moderate cases, we can reshape and cover damaged teeth using dental materials like composite resins or porcelain to fill decayed areas or cover teeth with veneers or crowns.
The key of course, is to identify dental erosion through clinical examination as soon as possible to minimize damage. Your enamel plays a critical role in protecting your teeth from disease — so take the right steps to protect your enamel.
If you would like more information on protecting your enamel, 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 “Dental Erosion.”
A dental crown is a restoration that restores a significant portion of lost tooth surface and fortifies a fractured or damaged tooth. Also known as a cap because it literally covers the tooth, crowns are one of the most durable and reliable dental restorations. A crown can also replace a missing tooth through a dental bridge. Dr. Bernard Pak, a dentist in Kirkland, WA, offers a number of cosmetic and general dentistry services for children and adults at Kirkland Smiles Dental Care.
Dental Crowns in Kirkland, WA
Crowns are a great option to restore function and make cosmetic improvements to a damaged tooth. In cases of severe tooth decay where the cavity is too big to be treated with a dental filling, a crown is often the only option available to save the tooth from extraction and more expensive restorations like dental implants. Broken or severely cracked teeth are also good candidates for dental crowns. Crowns can also be used to cover a discolored or stained tooth. Crowns are also used to cover a dental implant.
Crowns can be fabricated from a few different types of material depending on your budget and needs, such as ceramic, porcelain, or a combination of materials like glass and plastic (composite resin). Your dentist will recommend the type of crown that is best for you at your initial appointment. Most crowns require two dental appointments, where an impression is taken of the tooth and sent to an outside lab where the crown will be completed. You can usually get a temporary crown to wear until the permanent one is completed.
Caring for Dental Crowns
Like natural teeth, crowns require good oral hygiene and regular preventive care including a check up and professional cleaning every six months. With proper care, a typical crown can last for many years.
Find a Dentist in Kirkland, WA
For more information about crowns and other dental restorations, contact Kirkland Smiles Dental Care by calling (425) 893-9500 to schedule an appointment with Dr. Pak today.
While the sport of golf may not look too dangerous from the sidelines, players know it can sometimes lead to mishaps. There are accidents involving golf carts and clubs, painful muscle and back injuries, and even the threat of lightning strikes on the greens. Yet it wasn’t any of these things that caused professional golfer Danielle Kang’s broken tooth on the opening day of the LPGA Singapore tournament.
“I was eating and it broke,” explained Kang. “My dentist told me, I've chipped another one before, and he said, you don't break it at that moment. It's been broken and it just chips off.” Fortunately, the winner of the 2017 Women’s PGA championship got immediate dental treatment, and went right back on the course to play a solid round, shooting 68.
Kang’s unlucky “chip shot” is far from a rare occurrence. In fact, chipped, fractured and broken teeth are among the most common dental injuries. The cause can be crunching too hard on a piece of ice or hard candy, a sudden accident or a blow to the face, or a tooth that’s weakened by decay or repetitive stress from a habit like nail biting. Feeling a broken tooth in your mouth can cause surprise and worry—but luckily, dentists have many ways of restoring the tooth’s appearance and function.
Exactly how a broken tooth is treated depends on how much of its structure is missing, and whether the soft tissue deep inside of it has been compromised. When a fracture exposes the tooth’s soft pulp it can easily become infected, which may lead to serious problems. In this situation, a root canal or extraction will likely be needed. This involves carefully removing the infected pulp tissue and disinfecting and sealing the “canals” (hollow spaces inside the tooth) to prevent further infection. The tooth can then be restored, often with a crown (cap) to replace the entire visible part. A timely root canal procedure can often save a tooth that would otherwise need to be extracted (removed).
For less serious chips, dental veneers may be an option. Made of durable and lifelike porcelain, veneers are translucent shells that go over the front surfaces of teeth. They can cover minor to moderate chips and cracks, and even correct size and spacing irregularities and discoloration. Veneers can be custom-made in a dental laboratory from a model of your teeth, and are cemented to teeth for a long-lasting and natural-looking restoration.
Minor chips can often be remedied via dental bonding. Here, layers of tooth-colored resin are applied to the surfaces being restored. The resin is shaped to fill in the missing structure and hardened by a special light. While not as long-lasting as other restoration methods, bonding is a relatively simple and inexpensive technique that can often be completed in just one office visit.
If you have questions about restoring chipped teeth, please contact us or schedule an appointment for a consultation. You can learn more by reading the Dear Doctor magazine articles “Porcelain Veneers” and “Artistic Repair of Chipped Teeth With Composite Resin.”