Posts for: April, 2015
While most tooth loss stems from dental disease or injury, another major cause is a condition known as cracked tooth syndrome. What begins as a microscopic crack in an individual tooth’s enamel could ultimately grow to a fracture that endangers its survival.
Most often related to age-related brittleness, expansion and contraction of the enamel surface because of hot foods followed by cold foods and beverages, or grinding habits, cracked tooth syndrome usually occurs in three phases. The first phase is the emergence of miniscule cracks in the outer enamel known as craze lines. These can be very difficult to detect even with x-rays, and usually calls for specialized detection methods such as probing with a sharp instrument (an explorer) or fiber-optic lighting with dye staining to highlight enamel abnormalities. If you have pain symptoms, we may ask you to bite down on a bite stick or rubber pad to locate the area by replicating the sensation.
In the next phase, the craze line grows into a crack that penetrates below the enamel into the tooth’s dentin. Pain becomes more prominent and the risk of infection increases. Left untreated, the crack may enter the third phase, a full break (fracture) occurring deep within the inner layers of the tooth. The deeper the fracture occurs, the more serious the danger to the tooth, especially if the pulp is exposed.
The best treatment approach is to attempt to detect and treat a crack as early as possible. Craze lines and moderate cracks can usually be repaired with restorative materials like composite resins. A deeper crack extending into the pulp may require a root canal treatment and the tooth covered with a permanent, protective crown.
If, however, the fracture is too deep, the tooth may be beyond repair and will need to be extracted and replaced with a dental implant or permanent bridge. In any event, the sooner a cracked tooth is discovered and treated, the greater your chance of avoiding pain, discomfort, and, ultimately, tooth loss.
If you would like more information on cracked tooth syndrome, 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 “Cracked Tooth Syndrome.”
Although dental implants are best known as single tooth replacements, they can actually play a role in multiple or complete tooth loss (edentulism) restorations. While replacing multiple teeth with individual implants is quite expensive, there’s another way to incorporate them in a restoration at much less cost — as supports for bridges.
In this case, only a few strategically placed implants are needed to support restorations of multiple crowns fused together into a single unit. Implant-based bridges consist of two main types: the first type is a fixed bridge, which is permanently attached to the implants and can’t be removed by the patient. It’s often the preferred treatment for patients who’ve lost most or all of their teeth but have not yet experienced significant bone loss in the jaw.
This choice, however, may not be the best option for patients with significant bone loss. In these cases, there’s a second type of fixed bridge: an implant-supported fixed denture. This type of fixed denture provides support for the lost bone support of the lips and cheeks. If a fixed bridge is not possible due to finances or inadequate bone support to place 4 to 6 implants, a removable denture (also known as an overdenture) that’s supported and held in place by implants is the next best alternative. Unlike a fixed bridge, an overdenture can be removed by the patient for cleaning purposes, and will require less investment than a fixed bridge.
For people with bone loss, the overdenture does more than restore chewing and speech function. Because bone loss can diminish support of the facial structures — actually shorten the distance between the chin and the tip of the nose — an overdenture provides additional bulk to support these structures to improve appearance. Depending on what the patient needs for facial support, overdentures for the upper jaw can be designed as “full palates,” meaning the denture plastic completely covers the upper jaw palate, or open in which the plastic doesn’t completely cover the palate.
Besides the condition of your teeth, gums and bone, your own personal preferences and financial ability will also play a role in which option is best for you. After considering all these factors, we can recommend which of these types of implant-based restorations will fit your needs. With either bridge, fixed or removable, you’ll certainly benefit from the improvement to both your mouth function and your smile.
If you would like more information on implant-supported bridges, 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 “Fixed vs. Removable.”
Did you see the move Cast Away starring Tom Hanks? If so, you probably remember the scene where Hanks, stranded on a remote island, knocks out his own abscessed tooth — with an ice skate, no less — to stop the pain. Recently, Dear Doctor TV interviewed Gary Archer, the dental technician who created that special effect and many others.
“They wanted to have an abscess above the tooth with all sorts of gunk and pus and stuff coming out of it,” Archer explained. “I met with Tom and I took impressions [of his mouth] and we came up with this wonderful little piece. It just slipped over his own natural teeth.” The actor could flick it out with his lower tooth when the time was right during the scene. It ended up looking so real that, as Archer said, “it was not for the easily squeamish!”
That’s for sure. But neither is a real abscess, which is an infection that becomes sealed off beneath the gum line. An abscess may result from a trapped piece of food, uncontrolled periodontal (gum) disease, or even an infection deep inside a tooth that has spread to adjacent periodontal tissues. In any case, the condition can cause intense pain due to the pressure that builds up in the pus-filled sac. Prompt treatment is required to relieve the pain, keep the infection from spreading to other areas of the face (or even elsewhere in the body), and prevent tooth loss.
Treatment involves draining the abscess, which usually stops the pain immediately, and then controlling the infection and removing its cause. This may require antibiotics and any of several in-office dental procedures, including gum surgery, a root canal, or a tooth extraction. But if you do have a tooth that can’t be saved, we promise we won’t remove it with an ice skate!
The best way to prevent an abscess from forming in the first place is to practice conscientious oral hygiene. By brushing your teeth twice each day for two minutes, and flossing at least once a day, you will go a long way towards keeping harmful oral bacteria from thriving in your mouth.
If you have any questions about gum disease or abscesses, please contact us or schedule an appointment for a consultation. You can learn more by reading the Dear Doctor magazine articles “Periodontal (Gum) Abscesses” and “Confusing Tooth Pain.”
What is oral sedation dentistry? If you become frightened and anxious when facing a dental appointment or procedure, sedatives (also called “anxiolytics” meaning they dissolve anxiety), can completely transform the experience. Oral sedatives (taken by mouth) allow you to relax your mind and body so that you feel comfortable while in the dental chair.
How does anxiety affect my pain response? When you are afraid, your pain threshold is reduced. You experience a rush of adrenalin and you tense your muscles. As a result you end up in a state of heightened sensitivity. With sedation this sensitivity to pain vanishes along with your fear and anxiety.
What are some of the oral sedatives that my dentist may use? Most of the medications used in oral sedation dentistry belong to a class of medications called benzodiazepines, tried and tested over decades to be safe and effective. They are used in the treatment of anxiety, insomnia, and agitation. They include Valium®, Halcion®, Ativan®, and Versed®.
I'd just like to forget the experience after it is over. Can oral sedation help? Some of the medications prescribed as oral sedatives have amnesic properties (“a” – without; “mnesia” – memory). This means you will have little memory of the time in the dental chair when your procedure is finished.
What does my dentist need to know in order to prescribe the right oral sedation? We need a thorough medical and dental history, including all medical conditions you may have, and all medications you are taking — both prescription and over-the-counter (including allergies, alternative medications and even herbal supplements). We will also ask you whether you eat certain foods that could interfere with a sedative's effects.
How are the oral sedatives administered? Oral medications are either placed under the tongue (sub-lingual), and allowed to dissolve and then swallowed, or they may be swallowed whole. They are safe, effective, and fast acting. After the sedation takes effect, it will be easier to experience injections of local anesthesia if needed to numb your gums for the dental procedure.
What do I need to do before and after my appointment? Follow all directions we give you about restricting food and drink before your appointment. Until the medication wears off you may not be able to drive, operate heavy machinery or work so be sure to make arrangements to take time off and to have someone drive you to and from the appointment.
Contact us today to schedule an appointment to talk about any fears you may have about dental treatments. Using oral sedation, we can make sure that you have a relaxing experience. Oral sedation allows you to relax both your mind and body, and focus on feeling peaceful rather than anxious. You can learn more about oral sedation dentistry in the Dear Doctor magazine article “Oral Sedation Dentistry.”