Prevention of Decay

What is dental decay, and how do dentists fix it?
Dental caries (decay) is a bacterial infection, first of the enamel, then of the dentin of the tooth. The tradition in dentistry has been to surgically remove the diseased portion of the tooth by "drilling" out the decay and then filling the resulting hole in the tooth with some inert material. As most adults know, this procedure will be performed over and over again when new decay begins or when the filling (often silver) breaks or the tooth fractures.

Click here to learn about decay in young children.

Why should I practice prevention?
Would it not be better to eliminate the cause of the infection and thus not be forced to have big holes drilled in the teeth? We believe the bacterial cause of the infection should be addressed.

How do I prevent dental decay?
There are several positive steps that you can take to reduce your risk of dental decay. 

A. At the dentist's office
1. First, all the active decay in your mouth should be treated immediately. 

2. Next, all teeth that would benefit from sealants should be treated. 

• Why? This will prevent bacteria from reaching into the pits, fissures, and grooves that normally exist on the occlusal (biting) surfaces of teeth. Any stray bacteria that may still be in the sealed area are effectively cut off from their source of food and become inactive. Although sealants are most effective on teeth that have not been previously restored, they can be successfully placed on teeth filled with bonded fillings.

3. The infection can be treated with antimicrobials. 

4. We believe that the use of a fluoridated mouthrinse twice daily or use of a prescription fluoridated dentifrice as directed provides a great advantage. 

• Why? Not only is fluoride effective against bacteria but it also creates an environment that promotes remineralization of slightly damaged enamel. The decay process is reversed, and the tooth may not have to be drilled. 

5. We may also prescribe a chlorhexidine mouthrinse, an antimicrobial oral rinse that has a great effect on Streptococcus mutans.

B. In your daily life
6. Your diet and oral self-care are important in dental decay prevention. When you eat junk food and drink sugary liquids, your teeth are more prone to decay. The more frequently you snack, the more prone your teeth will be to decay. 

7. If your brushing and flossing are not effective, your teeth will be more prone to decay. When you can't brush after a meal, at least rinse your mouth with water within 15 minutes to dilute the acids forming from the ingested food or drink. 

8. If you have a diminished salivary flow, take frequent sips of water during the day to help dilute the acids produced by the bacteria.

What if decay keeps coming back?
If you have a continuing problem with active decay, we recommend more frequent preventive recare appointments. It has been repeatedly shown that patients who have good oral self-care and maintain a recare interval of 3 to 4 months have many fewer dentally related (cavities or gum disease) problems.

Present-day dental suggestions are based on proven scientific information. You might need to have your teeth cleaned by the hygienist twice each year, or you may need to be seen more frequently. 

For certain individuals, we also suggest testing the oral bacterial levels to determine the magnitude and presence of a Streptococcus mutans infection and to determine your risk level for future dental disease.

If you have any questions about the prevention of dental decay, please feel free to ask us.

Extractions

Reasons for Recommending Tooth Extraction
Teeth may need to be extracted for several reasons, including but not limited to:

• severe periodontal disease
• irreversible damage to the nerve tissue inside the tooth (and the patient decides against saving the tooth)
• failed endodontic therapy
• extreme fracture or decay of the tooth structure
• improper positioning of the tooth or for orthodontic purposes

To a great extent, the reason for the extraction will influence the amount of discomfort you might experience subsequent to the procedure. When the tooth is to be extracted for periodontal reasons, there will be reduced bone support for the tooth and the tooth might be removed more easily than if there were full bone support. In this case, there might be lessened discomfort following the extraction.

The Procedure
1. Numb the tooth: Your dentist will need to anesthetize (numb up) both your tooth and the bone and gum tissue that surround it. This is done as an injection.

2. Extraction: The root portion of a tooth is firmly encased in bone (its socket), and tightly held in place by a ligament. During the extraction process, the dentist needs to both "expand the socket" (widen and enlarge it) and separate the tooth from its ligament, to the point where the tooth is loose and free to come out.

• What does it mean to "expand" a tooth's socket? If you have ever tried to remove a tent stake that has been driven deeply into the ground, you know that you can't just pull the stake straight up. Instead, you first have to rock the stake back and forth, widening the hole in which it is lodged. Once the hole has been enlarged enough, the stake will come out easily.
• How does the dentist expand the jaw bone? The bone inside the jaw is spongy. When a dentist applies firm pressure to a tooth (forcing it against the side of its socket), the bone will compress. After repeated application of pressure, from many different angles, the entire socket gradually becomes expanded. At some point, enough space will have been created (and the ligament separated from the tooth enough) that the tooth will come out.

3. Closing the extraction site: Once your tooth has been removed, your dentist will begin the process of closing your extraction site. This may include:

• Removing infected or pathologic tissue by curetting (scraping) the walls of the tooth socket
• Using finger pressure to re-compress the "expanded" socket
• Rounding off sharp bone edges
• Evaluating the tooth socket for sinus complications (upper back teeth)
• Washing out ("irrigating") the socket, so to remove any loose bone or tooth fragments that remain
• Placing stitches (usually only after surgical extractions).
• Placing folded gauze over your extraction site and then having you bite down on it so to create firm pressure

The Tools

1. Dental Elevators: During the extraction process, a dentist will usually use an elevator first. These instruments are designed to be wedged in the ligament space between the tooth and its surrounding bone. As the elevator is forced and twisted, the tooth is pressed and rocked against the bone. This helps to expand the socket. It also helps to separate the tooth from its ligament. As this work is continued, the tooth will become more and more mobile. In some cases, the elevator may be able to shove the tooth on out. If not, the dentist will switch to the use of extraction forceps and remove the tooth with them.

2. Extraction Forceps: A dentist will usually keep a number of different extraction forceps on hand. Each one will have a design that's been specially made to grasp a certain type of tooth. When they're used, the dentist will grasp the tooth with the forceps and them firmly and deliberately rock it back and forth as much as it will. Because the bone that surrounds the tooth is compressible, the socket will expand. In addition to a rocking motion, a dentist will also rotate the tooth back and forth. This twisting action helps to rip and tear the tooth from the ligament that binds it in place. At some point, the socket will be enlarged enough, and the ligament torn enough, that the tooth can be easily removed.

What will I feel?
1. Pressure
2. You should not feel any pain 
3. Expect to hear startling extraction noises: These are often just routine

Following the Extraction
We will tell you the reason for the extraction and let you know what to expect following the procedure. Please follow the instructions given to you. If antibiotics are prescribed, take them until the prescription is completely finished. If pain medication is prescribed, take it only if necessary. If the medication prescribed contains a narcotic component, such as codeine, do not drive a motor vehicle or operate machinery that could prove dangerous to yourself or others. Expect some bleeding to occur from the extraction site for the first 24 hours. Remember, there is now a hole in your jaw from which the tooth has been removed, and the hole can be quite large. Some bleeding is to be expected.

• Do not spit, rinse, or smoke for 24 hours
• Do not drink through a straw for 24 hours
• It would be a good idea not to brush near the extraction site for a day or two
• When you brush and floss the area, be gentle!
• For 24 hours after the extraction, try to chew food away from the extraction site
• Some slight swelling in the area is to be expected, especially if the extraction was difficult
• If sutures are placed, return to have them removed
• If medication has been prescribed for possible post extraction discomfort, take it as directed
• If prescription medication has NOT been given, you may take your usual over-the-counter pain reliever, as directed

 Please notify us if:

• There is extended bleeding from the extraction site. Slight bleeding for several hours is normal.
• Anything other than slight swelling occurs.
• Discomfort continues for more than 24 hours, especially if it is not relieved by over-the-counter pain relievers.

Some infrequent complications of routine oral surgical procedures include (but are not limited to):

• fracture of adjacent teeth or restorations (which of course would mean that these affected areas must be restored to normal function after the healing of the extraction site)
• separated root tips or root fragments
• temporary or permanent nerve damage to the area, resulting in anesthesia or paresthesia (numbness)
• incomplete healing, resulting in severe pain - a "dry socket"
• fracture of the surrounding bone

If you have any questions about reasons for dental extraction, please feel free to ask us.

Gingival Grafts

What is it?
Periodontal (gum) surgery is most often associated with the removal of soft tissue. But there are times when it is necessary to use soft tissue to cover an area that has too little soft tissue remaining. 

What causes it?
Exposed roots may be due to the improper brushing, periodontal disease, or genetic structure. Brushing too hard and/or with a hard toothbrush can cause the gingival tissue to disappear. The gingival margin (gumline) changes, and one or more millimeters of root structure can be exposed. Active periodontal disease can cause loss of this soft tissue too. 

Why you should care
This exposure can lead to teeth that are very sensitive to temperature changes, root decay, or are quite unsightly. The disfigured soft tissue line can lead to a plaque trap, causing more disease and further problems.

How dentists fix it
Two methods of resolving these problems are free gingival grafts and attached gingival grafts. Both of these are periodontal surgical procedures. In both cases, a local anesthetic will be used to numb the treatment site. 
In the case of an attached graft, gingival tissue is taken from the donor site and moved to the area where root coverage is required. The graft tissue is sutured into place, and a dressing is placed over the treated area. The dressing remains in place for several weeks and is then removed. An attached graft is not completely removed from the donor site. The donor site is adjacent to the site that needs root coverage. There is an incision made in the gum tissue, and the tissue is moved sideways, up, or down and sutured into place. Again, a protected dressing is placed to protect the area while healing occurs. Any anticipated postoperative discomfort is resolved with medication. Most discomfort will come from a free graft donor site.

Who performs the procedure?
A periodontist (gum specialist) usually performs these procedures, as well as other types of grafts and root coverage treatments. After the periodontist examines the areas needing treatment, you will have a better idea of what treatment will consist of, what the appearance may be, anticipated healing times, postoperative discomfort, and cost.

How can you prevent it?

Most patients have heard that they should take better care of their teeth - brush and floss the teeth. Some patients brush too hard and in a back-and-forth motion; and some facial, bony structures and biting forces are such that root exposure happens, resulting in longer looking teeth. The grafting procedures mentioned here can restore the proper gingival marginal architecture, prevent root decay, reduce or eliminate thermal sensitivity, and make your smile look great again.

If you have any questions about gingival grafts, please feel free to ask us.

Cracked Tooth Syndrome (CTS)

What is CTS?
Minuscule cracks can form on your teeth, threatening your dental health. Why? 

• Age plays a factor - as we get older, our teeth tend to weaken, making them susceptible to tiny hairline fractures that are not visible to the naked eye. 
• We increase our chances of developing cracked teeth by exposing them to trauma, such as bruxism and chewing on hard objects.
• When teeth have been heavily filled, it is not unusual that they develop cracked (or split) tooth syndrome (CTS). 

Symptoms include a sharp pain when you bite down into something hard. When you open your mouth and the teeth are no longer touching, the pain goes away. The pain does not usually linger after the biting action is finished. The fact that you feel pain when pressure is applied to the tooth means that the nerve is being affected. If the problem is not solved quickly, the nerve may die and the tooth will then require endodontic treatment (root canal).

Why does it hurt when I eat?
Pressing an object against the tooth opens the crack, causing the underlying dentin to move and irritating the pulp chamber (which contains the tooth's nerves). When the pressure is released, the crack immediately closes, causing a sharp pain. If left untreated, the pulp will eventually become damaged, and you will start to feel sensitivity to hot and cold or prolonged pain.

Common sites of cracked teeth

• Premolars and molars, the back teeth that grind and crush food 
• A tooth that has recently been drilled and a great amount of tooth structure has been lost
• A tooth that has an extensive filling (usually silver amalgam) that has been in place for a long time 
• Or a tooth that only has a small silver filling  
• The filling has weakened the tooth just enough so that when you chew or bite, the tooth and filling separate slightly (flex), causing immediate and sometimes severe pain.

Types of cracked teeth:

• Fractured Cusp: When the cusp (the raised section of the biting surface of your tooth) becomes fractured. If a fractured cusp does not break off on its own, it will need to be removed by a dentist and replaced by a dental crown.
• Cracked Tooth: Run vertically, originating from the top part of the crown and working their way down. Treatment typically entails a root canal followed by a dental crown. If the crack has extended below the gum line, the tooth may require a tooth extraction. 
• Split Tooth: When a cracked tooth is not treated, the crack can extend beyond the root, causing the tooth to split. Although these teeth are difficult to save, they can sometimes be treated with a root canal. 
• Vertical Root Fracture: Sometimes the crack starts at the bottom of the root and works its way up. If caught early, endodontic dental surgery may correct the situation. 

Treatment

Vertical Fracture

• Treatment will involve at least one x-ray to assist in the diagnosis and to rule out other causes. We will try to find the section of the tooth that is causing the problem by pushing on the various sections of the tooth or having you bite on a hard object.  
• When the section of the tooth that is cracked is found, it makes treatment easier. First, the tooth is anesthetized and the old filling is removed. 
• Then we carefully inspect the area to determine whether the cracked section can be seen. Very often it is visible at this point. 
• The next step is to see whether the split area can be fixed with a direct filling (bonded). This is the ideal situation if the crack is small.  If the crack is small enough, it may be removed by replacing the filling. Bonded white fillings and bonded amalgam filling will hold the tooth together making it less likely to crack



Crown

• Your dentist may first place an orthodontic band around the tooth to keep it together. If the pain settles, the band is replaced with a filling that covers the fractured portion of tooth (or the whole biting surface).
• Unfortunately, this rarely occurs. If the crack goes too far vertically, there is a possibility the tooth may need to be removed and replaced with an artificial one (bridge, denture, or implant). More often (over 95% of the time), the biting surfaces of the tooth must be entirely covered and protected first with a provisional (temporary) onlay or crown. 
• If this is successful in eliminating the pain (we usually wait for a few weeks to be sure the problem is resolved), an impression for a laboratory-fabricated casting - either a porcelain or resin onlay or a crown - is made. If adequate tooth structure remains, a partial coverage restoration - an onlay - is preferred. If the tooth has been badly cracked or if not much tooth remains, then a crown will be necessary. The purpose of either type of cast restoration is to unite all sections of the tooth so it cannot move or separate under normal biting forces. If the provisional restoration is successful in eliminating the pain, we expect that the final cast crown or onlay will correct the problem. 
• The nerve may sometimes be affected so badly that it dies. Root canal treatment will be required if the tooth is to be saved.

The earlier a split tooth is diagnosed and treated, the better success there is in treating it. If the split is severe, a root canal may be necessary to save the tooth. Depending on the symptoms you describe, we may choose to treat it as a bite adjustment, small filling, or larger preparation for an onlay or  crown. If these do not work, the treatment plan will be modified. If left untreated, the tooth may eventually be lost. It is also possible that the initial split of the tooth may be such that it cannot be saved, despite our best efforts.

Delaying Treatment
What happens if CTS is not treated quickly? The best you can hope for is that the tooth continues to hurt only when you chew or bite. This does not often happen. Usually, the broken section of tooth gets weaker and weaker until it fractures off. Additionally, if the crack gets deeper into the tooth, the nerve will die and the tooth will need endodontic treatment before the crown or onlay is placed. Sometimes the nerve is immediately affected by the initial split and dies. This may occur quickly or may take years before it is evident. Every case of CTS is unique. If it is any consolation, the cracked tooth is not your fault. It is a result of your teeth being drilled and filled with big silver fillings when you were younger. We see this particular dental problem mostly in patients who are between 25 and 45 years old.

Unfortunately, cracked teeth do not go away. Many times, they only hurt when you bite on them from one particular angle. If the fractured segment is not stressed, the tooth feels normal. You might also be able to "train" yourself to chew on different teeth and avoid the cracked tooth. At best, you only postpone necessary treatment while the nerve may be slowly dying.

After Treatment
If treated by adjusting your occlusion (bite) on the tooth
This will lessen the symptoms. If the discomfort you feel when you bite is not eliminated within one week of treatment, please call our office and let us know. If the split is still present, a different approach will have to be tried. Give the tooth a few days to "calm down" before you try to bite down on hard foods.

If treated by removing the old restoration and placing a bonded filling in its place 
If the split is small, this may eliminate the problem. Do not bite down hard on the tooth for a few days, then gradually place more pressure on the tooth. Call our office in one week and let us know how it feels. If the split is still causing a problem, a different approach must be tried. If left untreated, the tooth may split further and you may need endodontic treatment and a crown. If the tooth splits severely, it may have to be extracted.

If treated by cementing a temporary crown onto the cracked tooth with temporary cement 
Because the crack was so severe, this procedure was used to determine whether or not the tooth can be treated without performing a root canal. Please give the tooth several days of rest before you try biting down on hard foods. Expect the tooth to be sensitive for a few days after the temporary is placed. This is normal. Gradually apply more force when you bite into foods, and gradually try to eat harder foods. Expect the temporary crown to remain in place for several weeks, until it can be determined whether or not the problem is solved.

If you have any questions about cracked tooth syndrome, please feel free to ask us.

Foods That Cause Tooth Decay

Cariogenic: causing tooth decay.
Foods (such as candy and sweets) that contain sugar and other carbohydrates that can be metabolized by bacteria in plaque are described as cariogenic. 

How long food remains in mouth:

• Sugary liquids, such as soft drinks, leave the mouth quickly and are not as cariogenic
• Sticky foods, such as raisins or caramels, adhere to the teeth and stay in the mouth longer and are more cariogenic

Frequency vs. Amount:

• Someone who snacks all day on small amounts of cariogenic food is far more likely to develop decay
• Someone who eats a larger amount of cariogenic food, but only once a day, is less likely to develop decay 

Refined carbohydrates vs. Complex carbohydrates:

• Foods such as crackers, although not sweet, are cariogenic because they contain refined carbohydrates that stick to the teeth. They remain in the mouth long enough to be broken down into sugars that can be used by the bacteria in plaque.

• Complex carbohydrates, such as fruits and vegetables, are less cariogenic because they clear the mouth before they are converted into simple sugars that can be used by bacteria.  

Flow of saliva to speed clearance of food from mouth and provide a source of dietary fluoride to strengthen the tooth and assist in remineralization

• Sugarless gum or hard candy, as well as sipping water frequently, will increase the saliva flow
• Various medicines can cause a dry mouth, and try to avoid spicy or salty foods

Give Yourself A 60-Second Dental Check-Up

Regular visits to your dentists are absolutely essential to prevent serious dental problems. But it is also important to give yourself an oral check-up from time to time. This simple process just takes a minute, but it can yield valuable clues to the health of your mouth, teeth, and gums.

Stand before a well-lit mirror and open your mouth wide.

1. Check your gum line and the lines between your teeth
Good: There should be no brown lines here
Bad: If you see brown lines, that is a sign of tartar build-up
What to do: Time to go to the dentist. Once the brown lines are cleaned up at the clinic, regular flossing will keep tartar away.

2. Stick out your tongue. What does the surface look like? 
Good: A healthy tongue should be pink
Bad: If it is coated with white, it can be an indication of poor digestion. This coating also results in bad breath.
What to do: Use a stainless steel scraper to clean your tongue every morning. 

3. Are there ridges along your tongue? 
Bad: This is often a sign of tooth grinding. People may not be aware they grind their teeth, but it can happen when they are stressed. 
What to do: If you wake up with an aching jaw, you should see a dentist.

4. Take a look at the inside of your cheeks. 
Bad: Do you see white patches? These can occur if you chew the inside of your mouth when you bite and chew your food. 
What to do: These should be checked by your dentist because a wound inside the cheek can not only get infected, but may also be a sign of pre-cancerous changes, especially in smokers. An ulcer that does not heal within three weeks should also be investigated.

5. How do your gums look?
Good: If they are pink and rosy, your gums are in good health. 
Bad: But if they are red, it is a signal that gingivitis or gum inflammation has turned into gum disease. Another clue: gums that bleed when you brush your teeth. 
What to do: Your dentist can help you with a course of antibiotics and dental hygiene guidance on how to rebuild gum health. 

Bad: Pale gums can indicate iron deficiency - a warning sign of anemia. 
What to do: Up your intake of green vegetables, tofu, chickpeas, lentils, and dried fruits such as raisins and prunes.

Am I Grinding My Teeth At Night?

How do you find out if you are grinding your teeth at night? Many patients are often unaware that they have this problem. Some people do grind or clench their teeth during the day, but it oftentimes occurs at night when the person is asleep. Because of this, it can be difficult to self-diagnose.

Ways to find out

• When you wake up, are you in pain?
• Such pressure applied can cause a tooth to hurt or cause soreness in the jaw muscles.
• Does someone observe you grinding your teeth while you are sleeping?
• Many people who grind their teeth at night will make repetitive clicking or grinding noises while sleeping. They will not make these noises all night long, but instead exhibit repeated short periods of grinding/clenching activity.
• Does your front teeth look worn when you look in the mirror?
• Do you experience these symptoms when you wake up?

• A dull, constant headache
• A sore jaw
• Audible teeth grinding sounds as you are falling asleep
• Tooth sensitivity to heat, cold, or brushing
• Inflammation of the gums (gingivitis)
• Wounds on the inside of the cheeks (from biting)

Ask your dentist because chronic teeth grinding can result in fracturing, loosening, or the loss of teeth.Your dentist can observe the wear patterns on your teeth and examine your mouth and jaw for signs of grinding, such as jaw tenderness, worn-down teeth, and other abnormalities. They will also check to make sure that you are not suffering from some other ailment that cause similar pain, such as: dental disorders, ear disorders, or TMD.

How to fix

•  Ask your dentist

• Dentists often recommend that patients wear a night guard in order to protect teeth and jaws from further damage. Many patients who do wear a night guard report that they feel better in the mornings. A previous blog post goes over the process of getting a bite guard.
• Muscle relaxants can be prescribed
• Crowns or onlays can be put onto your teeth to fix any damage caused to the teeth and repair your bite
• Understand bruxism: it is a condition where a person grinds, gnashes, or clenches his teeth unconsciously. 
• Reduce your stress. The degree of severity can be influenced by the amount of stress that someone is experiencing. Many patients who are aware of their nocturnal bruxing report that it can be worse during stressful periods of their lives.

• Stress counseling, exercising, meditating
• Eliminate major sources of stress in your life
• Go to bed and wake up at the same time every day
• Have fun with family and friends
• Eat well: three well-balanced and healthy meals each day
• Relax before bed
• Reduce stress on your mouth
• Stop chewing non-foods (chewing on pencils)
• Train yourself not to clench your jaw during the day
• If your muscles feel sore, you can apply ice to your jaw to alleviate the pain
• If your jaw hurts, you can take a pain reliever like ibuprofen for temporary relief