Protect Your Teeth from Decay

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Our mouths are home to many bacteria, most of which are harmless. Some bacteria, however, are responsible for causing cavities. Known as dental caries in the medical community, cavities are caused by acid-producing bacteria that destroy tooth enamel and dentin. According to Nashville dentist Warren Melamed, the most common locations for cavities to form include:

• Cracks, pits or grooves in the back teeth
• Between teeth
• Around dental fillings or bridgework
• Near the gum line

These sites are common cavity spots because they enable plaque to form easily. Plaque is a soft film that forms on teeth, sticking to them like jam sticks to a spoon. Plaque is a type of biofilm that is similar to the slime that forms in standing water. Just like other types of biofilm, plaque is not something you want to have a lot of in your mouth.

Plaque contains bits of food, saliva and closely-packed bacteria in large numbers. It starts to form right after a tooth is cleaned. Within an hour of cleaning, there is a measurable amount of plaque buildup. Plaque thickens as time passes. Within two to six hours, the plaque is full of bacteria that can cause cavities and gum disease.

If left long enough, plaque absorbs minerals from our saliva which then harden into calculus. Plaque continues to grow on top of these hardened spots, creating a new layer which may harden further. Plaque is easily removable with a toothbrush; calculus is not. This discrepancy is why it is so important to brush your teeth on a regular basis.

All of these processes contribute to the formation of cavities. Here’s how cavities form:

When a person eats sugary or starchy foods, the particles that remain in the mouth become food for bacteria.
These bacteria produce acids. The acids dissolve the mineral crystals in the teeth. The more times you eat in a day, the more your teeth are exposed to an acid attack. These attacks wear down enamel and create weak spots and even holes in teeth. White spots may appear on tooth enamel to signify a weak spot. At this stage, fluoride can still reverse the demineralization process.If bacteria have eaten away the tooth to form a cavity, the decay will need to be cleared and the hole filled by a dental professional.

One of the best tools at our disposal for preventing cavities occurs naturally in the mouth. Your mouth and teeth are constantly bathed in saliva, a natural liquid which keeps everything moist. Saliva washes away bits of food that would otherwise feed acid-producing bacteria. Saliva contains minerals that strengthen the teeth and buffering agents that reduce the acid levels in the mouth.

By reducing your saliva amounts, chronic dry mouth conditions can increase your risk for cavities. Other risk factors include:

• A history of cavities or tooth decay
• A lack of fluoride exposure through toothpaste, community drinking water or supplemental fluoride treatments
• Parents or siblings with high rates of dental decay
• Poor oral hygiene
• How often you consume particular foods, especially sugars and fermentable carbohydrates

While you can never completely remove bacteria from your mouth, you can control oral bacteria levels. Brushing daily, flossing and using mouthwash will reduce bacteria in your mouth and remove plaque. Dental pro Warren Melamed notes that visiting your dentist regularly can enable the identification of tooth decay before it necessitates to a filling or root canal.

How often should I brush and floss?

Brushing and flossing help control the plaque and bacteria that cause dental disease.

Plaque is a film of food debris, bacteria, and saliva that sticks to the teeth and gums. The bacteria in plaque convert certain food particles into acids that cause tooth decay. Also, if plaque is not removed, it turns into calculus (tartar). If plaque and calculus are not removed, they begin to destroy the gums and bone, causing periodontal (gum) disease.

Plaque formation and growth is continuous and can only be controlled by regular brushing, flossing, and the use of other dental aids.

Tooth brushing – Brush your teeth at least twice a day (especially before going to bed at night) with an ADA approved soft bristle brush and toothpaste.

• Brush at a 45 degree angle to the gums, gently using a small, circular motion, ensuring that you always feel the bristles on the gums.
• Brush the outer, inner, and biting surfaces of each tooth.
• Use the tip of the brush head to clean the inside front teeth.
• Brush your tongue to remove bacteria and freshen your breath.

Electric toothbrushes are also recommended. They are easy to use and can remove plaque efficiently. Simply place the bristles of the electric brush on your gums and teeth and allow the brush to do its job, several teeth at a time.

Flossing – Daily flossing is the best way to clean between the teeth and under the gum line. Flossing not only helps clean these spaces, it disrupts plaque colonies from building up, preventing damage to the gums, teeth, and bone.

• Take 12-16 inches (30-40cm) of dental floss and wrap it around your middle fingers, leaving about 2 inches (5cm) of floss between the hands.
• Using your thumbs and forefingers to guide the floss, gently insert the floss between teeth using a sawing motion.
• Curve the floss into a “C” shape around each tooth and under the gum line. Gently move the floss up and down, cleaning the side of each tooth.

Floss holders are recommended if you have difficulty using conventional floss.

Rinsing – It is important to rinse your mouth with water after brushing, and also after meals if you are unable to brush. If you are using an over-the-counter product for rinsing, it’s a good idea to consult with your dentist or dental hygienist on its appropriateness for you.

Why is it important to use dental floss?

Brushing our teeth removes food particles, plaque, and bacteria from all tooth surfaces, except in between the teeth. Unfortunately, our toothbrush can’t reach these areas that are highly susceptible to decay and periodontal (gum) disease.

Daily flossing is the best way to clean between the teeth and under the gumline. Flossing not only helps clean these spaces, it disrupts plaque colonies from building up, preventing damage to the gums, teeth, and bone.

Plaque is a sticky, almost invisible film that forms on the teeth. It is a growing colony of living bacteria, food debris, and saliva. The bacteria produce toxins (acids) that cause cavities and irritate and inflame the gums. Also, when plaque is not removed above and below the gumline, it hardens and turns into calculus (tartar). This will further irritate and inflame the gums and also slowly destroy the bone. This is the beginning of periodontal disease.

How to floss properly:

• Take 12-16 inches (30-40cm) of dental floss and wrap it around your middle fingers, leaving about 2 inches (5cm) of floss between the hands.
• Using your thumbs and forefingers to guide the floss, gently insert the floss between teeth using a sawing motion.
• Curve the floss into a “C” shape around each tooth and under the gumline. Gently move the floss up and down, cleaning the side of each tooth.

Floss holders are recommended if you have difficulty using conventional floss.

Daily flossing will help you keep a healthy, beautiful smile for life!

How often should I have a dental exam and cleaning?

You should have your teeth checked and cleaned at least twice a year, though your dentist or dental hygienist may recommend more frequent visits.

Regular dental exams and cleaning visits are essential in preventing dental problems and maintaining the health of your teeth and gums. At these visits, your teeth are cleaned and checked for cavities. Additionally, there are many other things that are checked and monitored to help detect, prevent, and maintain your dental health. These include:

• Medical history review: Knowing the status of any current medical conditions, new medications, and illnesses, gives us insight to your overall health and also your dental health.
• Examination of diagnostic x-rays (radiographs): Essential for detection of decay, tumors, cysts, and bone loss. X-rays also help determine tooth and root positions.
• Oral cancer screening: Check the face, neck, lips, tongue, throat, tissues, and gums for any signs of oral cancer.
• Gum disease evaluation: Check the gums and bone around the teeth for any signs of periodontal disease.
• Examination of tooth decay: All tooth surfaces will be checked for decay with special dental instruments.
• Examination of existing restorations: Check current fillings, crowns, etc.
• Removal of calculus (tartar): Calculus is hardened plaque that has been left on the tooth for sometime and is now firmly attached to the tooth surface. Calculus forms above and below the gum line, and can only be removed with special dental instruments.
• Removal of plaque: Plaque is a sticky, almost invisible film that forms on the teeth. It is a growing colony of living bacteria, food debris, and saliva. The bacteria produce toxins (poisons) that inflame the gums. This inflammation is the start of periodontal disease!
• Teeth polishing: Removes stain and plaque that is not otherwise removed during toothbrushing and scaling.
• Oral hygiene recommendations: Review and recommend oral hygiene aids as needed (electric dental toothbrushes, special cleaning aids, fluorides, rinses, etc.).
• Review dietary habits: Your eating habits play a very important role in your dental health.

As you can see, a good dental exam and cleaning involves quite a lot more than just checking for cavities and polishing your teeth. We are committed to providing you with the best possible care, and to do so will require regular check-ups and cleanings.

FAQs about Bad Breath

What should I do if I have bad breath?

Bad breath (halitosis) can be an unpleasant and embarrassing condition. Many of us may not realize that we have bad breath, but everyone has it from time to time, especially in the morning.

There are various reasons one may have bad breath, but in healthy people, the major reason is due to microbial deposits on the tongue, especially the back of the tongue. Some studies have shown that simply brushing the tongue reduced bad breath by as much as 70 percent.

What may cause bad breath?

• Morning time – Saliva flow almost stops during sleep and its reduced cleansing action allows bacteria to grow, causing bad breath.
• Certain foods – Garlic, onions, etc. Foods containing odor-causing compounds enter the blood stream; they are transferred to the lungs, where they are exhaled.
• Poor oral hygiene habits – Food particles remaining in the mouth promote bacterial growth.
• Periodontal (gum) disease – Colonies of bacteria and food debris residing under inflamed gums.
• Dental cavities and improperly fitted dental appliances – May also contribute to bad breath.
• Dry mouth (Xerostomia) – May be caused by certain medications, salivary gland problems, or continuous mouth breathing.
• Tobacco products – Dry the mouth, causing bad breath.
• Dieting – Certain chemicals called ketones are released in the breath as the body burns fat.
• Dehydration, hunger, and missed meals – Drinking water and chewing food increases saliva flow and washes bacteria away.
• Certain medical conditions and illnesses – Diabetes, liver and kidney problems, chronic sinus infections, bronchitis, and pneumonia are several conditions that may contribute to bad breath.

Keeping a record of what you eat may help identify the cause of bad breath. Also, review your current medications, recent surgeries, or illnesses with you dentist.

What can I do to prevent bad breath?

• Practice good oral hygiene – Brush at least twice a day with an ADA approved fluoride toothpaste and toothbrush. Floss daily to remove food debris and plaque from in between the teeth and under the gumline. Brush or use a tongue scraper to clean the tongue and reach the back areas. Replace your toothbrush every 2 to 3 months. If you wear dentures or removable bridges, clean them thoroughly and place them back in your mouth in the morning.
• See your dentist regularly – Get a check-up and cleaning at least twice a year. If you have or have had periodontal disease, your dentist will recommend more frequent visits.
• Stop smoking/chewing tobacco – Ask your dentist what they recommend to help break the habit.
• Drink water frequently – Water will help keep your mouth moist and wash away bacteria.
• Use mouthwash/rinses – Some over-the-counter products only provide a temporary solution to mask unpleasant mouth odor. Ask your dentist about antiseptic rinses that not only alleviate bad breath, but also kill the germs that cause the problem.

In most cases, your dentist can treat the cause of bad breath. If it is determined that your mouth is healthy, but bad breath is persistent, your dentist may refer you to your physician to determine the cause of the odor and an appropriate treatment plan.