Plaque is a film of bacteria that forms on your teeth and gums after eating foods that produce acids. These foods may include carbohydrates (starches and sugars), such as candy and cookies, and starchy foods such as bread, crackers, and cereal.

Tooth decay leads to cavities and occurs when plaque remains on your teeth for an extended period of time, allowing the bacteria to 'eat away' at the surfaces of your teeth and gums. Ironically, the areas surrounding restored portions of teeth (where fillings, or amalgams have been placed) are particularly vulnerable to decay and are a breeding ground for bacteria.

Plaque can lead to gum irritation, soreness, and redness. Sometimes, your gums may begin to bleed as a result of plaque. This gradual degeneration can often cause gums to pull away from teeth. This condition is called receding gums.

Long-term plaque can lead to serious problems. Sometimes, the bacteria can form pockets of disease around tooth structures, eventually destroying the bone beneath the tooth.

In just two or three dental visits, a veneer can reverse years of stains caused by foods, caffeine and tobacco use.

Special thin laminates, called veneers, can often be used to correct discolored, worn down, cracked and chipped teeth. Veneers can also be used to close unsightly gaps between teeth. Stronger types of veneers made of porcelain, also called composite veneers, typically last longer because they are bonded to the tooth.

An impression of the tooth must be made and a veneer molded by a lab technician. Because veneers require a small amount of enamel to be removed, they are permanent and non-reversible.

The process involves buffing the tooth, removing an extremely thin layer of the tooth to allow for the thickness of the veneer, an impression of the tooth, and final bonding of the veneer to the tooth with special cement. A special light is used to complete the process.

Dentures today are made from very advanced materials designed to give you a natural appearance.

However, keep in mind that just like your teeth, dentures should be cared for with the same diligence. This means daily brushing and regular visits to your dentist.

Regular visits to your dentist are critical. Your dentist also can make minor adjustments that ensure that your dentures continue fitting naturally and comfortably.

Just like natural teeth, dentures need to be cleansed of plaque, food particles and other debris. Keeping your dentures in top shape will also help keep the soft tissues of your mouth healthy; an unclean or malformed denture can cause infections and irritation.

Cleaning Techniques

Remember to rinse and brush your dentures after every meal, and soak them in denture solution overnight. This also allows your gums to breathe while you sleep.

Here are some simple techniques for keeping your dentures clean:

• People can brush their dentures in a variety of ways. Some people use soap and water or a slightly abrasive toothpaste. Popular denture pastes and creams also can be used.
• Avoid using highly abrasive chemicals or pastes, or vigorously brushing with hard bristled toothbrushes. These can scratch or even crack dentures.
• Hold your dentures gently to avoid loosening a tooth.
• Clean your dentures with cool or tepid water over a water-filled sink. Hot water may warp a denture. A small washcloth placed in the bottom of the bowl will ensure that your denture isn't damaged if it falls.
• Soak your dentures overnight in any commercially available product like Efferdent or Polident, and remember to rinse your dentures before placing them back in your mouth.
• Remember to use a separate toothbrush to clean your own natural teeth, as well as all of your gum tissues. In lieu of a toothbrush, a soft washcloth may be used to wipe your gums.

Over time, even daily care of your dentures may require them to be cleaned by the dentist. A powerful ultrasonic cleaner may be used to remove hard accumulations of tartar and other substances.

A denture is a removable replacement for missing teeth and adjacent tissues. It is made of acrylic resin, sometimes in combination with various metals.

Types of dentures

Complete dentures replace all the teeth, while a partial denture fills in the spaces created by missing teeth and prevents other teeth from changing position.

Candidates for complete dentures have lost most or all of their teeth. A partial denture is suitable for those who have some natural teeth remaining. A denture improves chewing ability and speech, and provides support for facial muscles. It will greatly enhance the facial appearance and smile.

Complete or full dentures are made when all of your natural teeth are missing. You can have a full denture on your upper or lower jaw, or both.

Complete dentures are called "conventional" or "immediate" according to when they are made and when they are inserted into the mouth. Immediate dentures are inserted immediately after the removal of the remaining teeth. To make this possible, the dentist takes measurements and makes the models of the patient`s jaws during a preliminary visit.

An advantage of immediate dentures is that the wearer does not have to be without teeth during the healing period. However, bones and gums can shrink over time, especially during the period of healing in the first six months after the removal of teeth. When gums shrink, immediate dentures may require rebasing or relining to fit properly. A conventional denture can then be made once the tissues have healed. Healing may take at least 6-8 weeks.

An overdenture is a removable denture that fits over a small number of remaining natural teeth or implants. The natural teeth must be prepared to provide stability and support for the denture.

Partial dentures are often a solution when several teeth are missing.

Removable partial dentures usually consist of replacement teeth attached to pink or gum-colored plastic bases, which are connected by metal framework. Removable partial dentures attach to your natural teeth with metal clasps or devices called precision attachments. Precision attachments are generally more esthetic than metal clasps and are nearly invisible. Crowns on your natural teeth may improve the fit of a removable partial denture and they are usually required with attachments. Dentures with precision attachments generally cost more than those with metal clasps.

How are dentures made?

The denture process takes about one month and five appointments: the initial diagnosis is made; an impression and a wax bite are made to determine vertical dimensions and proper jaw position; a "try-in" is placed to assure proper color, shape and fit; and the patient`s final denture is placed, following any minor adjustments.

First, an impression of your jaw is made using special materials. In addition, measurements are made to show how your jaws relate to one another and how much space is between them (bite relationship). The color or shade of your natural teeth will also be determined. The impression, bite and shade are given to the dental laboratory so a denture can be custom-made for your mouth.

The dental laboratory makes a mold or model of your jaw, places the teeth in a wax base, and carves the wax to the exact form wanted in the finished denture. Usually a "wax try-in" of the denture will be done at the dentist`s office so any adjustments can be done before the denture is completed.

The denture is completed at the dental laboratory using the "lost wax" technique. A mold of the wax-up denture is made, the wax is removed and the remaining space is filled with pink plastic in dough form. The mold is then heated to harden the plastic. The denture is then polished and ready for wear.
 

Getting used to your denture

For the first few weeks, a new denture may feel awkward or bulky. However, your mouth will eventually become accustomed to wearing it. Inserting and removing the denture will require some practice. Your denture should easily fit into place. Never force the partial denture into position by biting down. This could bend or break the clasps.

At first, you may be asked to wear your denture all the time. Although this may be temporarily uncomfortable, it is the quickest way to identify those denture parts that may need adjustment. If the denture puts too much pressure on a particular area, that spot will become sore. Your denture can be adjusted to fit more comfortably. After making adjustments, you may need to take the denture out of your mouth before going to bed and replace it in the morning.

Start out by eating soft foods that are cut into small pieces. Chew on both sides of the mouth to keep even pressure on the denture. Avoid sticky or hard foods, including gum. You may want to avoid chewing gum while you adjust to the denture.
 

Care of your denture

It's best to stand over a folded towel or a sink of water when handling your denture, just in case you accidentally drop it. Brush the denture (preferably with a denture brush) daily to remove food deposits and plaque, and keep it from becoming permanently stained. Avoid using a brush with hard bristles, which can damage the denture. Look for denture cleansers with the American Dental Association (ADA) Seal of Acceptance. Pay special attention to cleaning teeth that fit under the denture`s metal clasps. Plaque that becomes trapped under the clasps will increase the risk of tooth decay.

Hand soap or mild dishwashing liquid to clean dentures is also acceptable. Other types of household cleaners and many toothpastes are too abrasive and should not be used for cleaning dentures. A denture could lose its proper shape if it is not kept moist. At night, the denture should be placed in soaking solution or water. However, if the appliance has metal attachments, they could be tarnished if placed in soaking solution.

Even with full dentures, you still need to take good care of your mouth. Every morning, brush your gums, tongue and palate with a soft-bristled brush before you put in your dentures. This removes plaque and stimulates circulation in the mouth. Selecting a balanced diet for proper nutrition is also important for maintaining a healthy mouth.
 

Adjustments

Over time, adjusting the denture may be necessary. As you age, your mouth naturally changes, which can affect the fit of the denture. Your bone and gum ridges can recede or shrink, resulting in a loose-fitting denture. Loose dentures can cause various problems, including sores or infections. Dentures that do not fit properly can be adjusted. Avoid using a do-it-yourself kit to adjust your dentures, as this can damage the appliance beyond repair. Glues sold over-the-counter often contain harmful chemicals and should not be used on a denture.

If your denture no longer fits properly, if it breaks, cracks or chips, or if one of the teeth becomes loose, see your dentist immediately. In many cases, dentists can make necessary adjustments or repairs, often on the same day. Complicated repairs may require that the denture be sent to a special dental laboratory.

Over time, dentures will need to be relined, re-based, or re-made due to normal wear. To reline or re-base a denture, the dentist uses the existing denture teeth and refits the denture base or makes a new denture base. Dentures may need to be replaced if they become loose and the teeth show signs of significant wear.
 

Common concerns

Eating will take a little practice. Start with soft foods cut into small pieces. Chew slowly using both sides of your mouth at the same time to prevent the dentures from tipping. As you become accustomed to chewing, add other foods until you return to your normal diet.

Continue to chew food using both sides of the mouth at the same time. Be cautious with hot or hard foods and sharp-edged bones or shells.

Some people worry about how dentures will affect their speech. Consider how your speech is affected when you have a number of your natural teeth missing.

Pronouncing certain words may require practice. Reading out loud and repeating troublesome words will help. If your dentures "click" while you`re talking, speak more slowly. You may find that your dentures occasionally slip when you laugh, cough or smile. Reposition the dentures by gently biting down and swallowing. If a speaking problem persists, consult your dentist.
 

Denture adhesives

Denture adhesives can provide additional retention for well-fitting dentures. Denture adhesives are not the solution for old, ill-fitting dentures. A poorly fitting denture, which causes constant irritation over a long period, may contribute to the development of sores. These dentures may need a reline or need to be replaced. If your dentures begin to feel loose, or cause pronounced discomfort, consult with your dentist immediately.

Saliva is one of your body's natural defenses against plaque because it acts to rinse your mouth of cavity-causing bacteria and other harmful materials. Dry mouth (also called Xerostomia) is a fairly common condition that is caused by diminished saliva production. People with medical conditions, such as an eating disorder or diabetes, are often plagued by dry mouth. Eating foods such as garlic, tobacco use, and some kinds of medications, including treatments such as cancer therapy can diminish the body's production of saliva, leading to dry mouth. Other causes are related to aging (including rheumatoid arthritis), and compromised immune systems.

Some of the less alarming results of dry mouth include bad breath. But dry mouth can lead to more serious problems, including burning tongue syndrome, a painful condition caused by lack of moisture on the tongue.

If dry mouth isn't readily apparent, you may experience other conditions that dry mouth can cause, including an overly-sensitive tongue, chronic thirst or even difficulty in speaking.

If you don't have a medical condition that causes it, dry mouth can be minimized by sipping water regularly, chewing sugarless gum and avoiding smoking. Of course, there is no substitute for regular checkups and good oral hygiene.