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Fillings

liv2run224 • April 15, 2024

Fillings

Frequently asked questions: dental fillings

Are dental amalgams safe? Is it possible to have an allergic reaction to amalgam? Is it true that dental amalgams have been banned in other countries? Is there a filling material that matches tooth color? If my tooth doesn't hurt and my filling is still in place, why would the filling need to be replaced? Read this interesting and informative discussion from the American Dental Association.

FDA consumer update: dental amalgams

The Food and Drug Administration and other organizations of the U.S. Public Health Service (USPHS) continue to investigate the safety of amalgams used in dental restorations (fillings). However, no valid scientific evidence has shown that amalgams cause harm to patients with dental restorations, except in rare cases of allergic reactions.

ATSDR - public health statements: mercury

The Centers for Disease Control and Prevention offers some scientific background on mercury (contained within silver-colored fillings), and whether it believes the substance presents any health hazards.

Analysis reveals significant drop in children's tooth decay

Children have significantly less tooth decay in their primary (baby) and permanent teeth today than they did in the early 1970s, according to the Journal of the American Dental Association (JADA). The analysis reveals that among children between the ages of six and 18 years, the percentage of decayed permanent teeth decreased by 57.2 percent over a 20-year period. In addition, children between the ages of two and 10 years experienced a drop of nearly 40 percent in diseased or decayed primary teeth.

Alternative Materials

Advances in modern dental materials and techniques increasingly offer new ways to create more pleasing, natural-looking smiles. Researchers are continuing their often decades-long work developing esthetic materials, such as ceramic and plastic compounds that mimic the appearance of natural teeth. As a result, dentists and patients today have several choices when it comes to selecting materials used to repair missing, worn, damaged or decayed teeth.

The advent of these new materials has not eliminated the usefulness of more traditional dental restoratives, which include gold, base metal alloys and dental amalgam. The strength and durability of traditional dental materials continue to make them useful for situations where restored teeth must withstand extreme forces that result from chewing, such as in the back of the mouth.

Alternatives to amalgam, such as cast gold restorations, porcelain, and composite resins are more expensive. Gold and porcelain restorations take longer to make and can require two appointments. Composite resins, or white fillings, are esthetically appealing, but require a longer time to place.

Here's a look at some of the more common kinds of alternatives to silver amalgam:

  • Composite fillings - Composite fillings are a mixture of acrylic resin and finely ground glasslike particles that produce a tooth-colored restoration. Composite fillings provide good durability and resistance to fracture in small-to-mid size restorations that need to withstand moderate chewing pressure. Less tooth structure is removed when the dentist prepares the tooth, and this may result in a smaller filling than that of an amalgam. Composites can also be "bonded" or adhesively held in a cavity, often allowing the dentist to make a more conservative repair to the tooth. In teeth where chewing loads are high, composite fillings are less resistant to wear than silver amalgams. It also takes longer to place a composite filling.
  • Ionomers - Glass ionomers are tooth-colored materials made of a mixture of acrylic acids and fine glass powders that are used to fill cavities, particularly those on the root surfaces of teeth. Glass ionomers can release a small amount of fluoride that help patients who are at high risk for decay. Glass ionomers are primarily used as small fillings in areas that need not withstand heavy chewing pressure. Because they have a low resistance to fracture, glass ionomers are mostly used in small non-load bearing fillings (those between the teeth) or on the roots of teeth. Resin ionomers also are made from glass filler with acrylic acids and acrylic resin. They also are used for non-load bearing fillings (between the teeth) and they have low to moderate resistance to fracture. Ionomers experience high wear when placed on chewing surfaces. Both glass and resin ionomers mimic natural tooth color but lack the natural translucency of enamel. Both types are well tolerated by patients with only rare occurrences of allergic response.
  • Porcelain (ceramic) dental materials - All-porcelain (ceramic) dental materials include porcelain, ceramic or glasslike fillings and crowns. They are used as inlays, onlays, crowns and aesthetic veneers. A veneer is a very thin shell of porcelain that can replace or cover part of the enamel of the tooth. All-porcelain (ceramic) restorations are particularly desirable because their color and translucency mimic natural tooth enamel. All-porcelain restorations require a minimum of two visits and possibly more. The restorations are prone to fracture when placed under tension or on impact. Their strength depends on an adequate thickness of porcelain and the ability to be bonded to the underlying tooth. They are highly resistant to wear but the porcelain can quickly wear opposing teeth if the porcelain surface becomes rough.


Sealants

Research has shown that almost everybody has a 95 percent chance of eventually experiencing cavities in the pits and grooves of their teeth.

Sealants were developed in the 1950s and first became available commercially in the early 1970s. The first sealant was accepted by the American Dental Association Council on Dental Therapeutics in 1972. Sealants work by filling in the crevasses on the chewing surfaces of the teeth. This shuts out food particles that could get caught in the teeth, causing cavities. The application is fast and comfortable and can effectively protect teeth for many years. In fact, research has shown that sealants actually stop cavities when placed on top of a slightly decayed tooth by sealing off the supply of nutrients to the bacteria that causes a cavity.

Sealants act as a barrier to prevent bacteria and food from collecting and sitting on the grooves and pits of teeth. Sealants are best suited for permanent first molars, which erupt around the age of 6, and second molars, which erupt around the age of 12.

Sealants are most effective when applied as soon as the tooth has fully come in. Because of this, children derive the greatest benefit from sealants because of the newness of their teeth. Research has shown that more than 65% of all cavities occur in the narrow pits and grooves of a child`s newly erupted teeth because of trapped food particles and bacteria.

Application

Sealant application involves cleaning the surface of the tooth and rinsing the surface to remove all traces of the cleaning agent. An etching solution or gel is applied to the enamel surface of the tooth, including the pits and grooves. After 15 seconds, the solution is thoroughly rinsed away with water. After the site is dried, the sealant material is applied and allowed to harden by using a special curing light.

Sealants normally last about five years. Sealants should always be examined at the child`s regular checkup. Sealants are extremely effective in preventing decay in the chewing surfaces of the back teeth.

Insurance coverage for sealant procedures is increasing, but still minimal. Many dentists expect this trend to change as insurers become more convinced that sealants can help reduce future dental expenses and protect the teeth from more aggressive forms of treatment.


By liv2run224 April 15, 2024
Chipped, Cracked, and Worn Teeth 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. Another process called bonding can accomplish some of the same things, but it does not last as long. Material that looks much like the enamel on your teeth is used during a bonding procedure. The material is shaped to the tooth, and when it becomes hard it is polished. In addition, dental contouring and reshaping can correct chipped, cracked, crooked, or even overlapping teeth. This procedure can alter the shape, length, or position of teeth.
By liv2run224 April 15, 2024
Cavities and Tooth Decay What Is Tooth Decay? Tooth decay is caused by a variety of things; in medical terms, cavities are called caries, which are caused by long-term destructive forces acting on tooth structures such as enamel and the tooth's inner dentin material. These destructive forces include frequent exposure to foods rich in sugar and carbohydrates. Soda, candy, ice cream—even milk—are common culprits. Left inside your mouth from non-brushing and flossing, these materials break down quickly, allowing bacteria to do their dirty work in the form of a harmful, colorless sticky substance called plaque. The plaque works in concert with leftover food particles in your mouth to form harmful acids that destroy enamel and other tooth structures. If cavities aren't treated early enough, they can lead to more serious problems requiring treatments such as root canal therapy. Preventing Cavities The best defense against cavities is good oral hygiene, including brushing with a fluoride toothpaste, flossing and rinsing. Your body's own saliva is also an excellent cavity fighter, because it contains special chemicals that rinse away many harmful materials. Chewing a good sugarless gum will stimulate saliva production between brushing. Special sealants and varnishes can also be applied to stave off cavities from forming. If you have any of the following symptoms, you may have a cavity: Unusual sensitivity to hot and cold water or foods. A localized pain in your tooth or near the gum line. Teeth that change color. Baby Bottle Tooth Decay Baby bottle tooth decay is caused by sugary substances in breast milk and some juices, which combine with saliva to form pools inside the baby's mouth. If left untreated, this can lead to premature decay of your baby's future primary teeth, which can later hamper the proper formation of permanent teeth. One of the best ways to avoid baby bottle tooth decay is to not allow your baby to nurse on a bottle while going to sleep. Encouraging your toddler to drink from a cup as early as possible will also help stave off the problems associated with baby bottle tooth decay.
By liv2run224 April 15, 2024
Canker/Cold Sores People sometimes confuse canker sores and cold sores, but they are completely unrelated. Both can be painful, but knowing the differences can help you keep them in check. A canker sore is typically one that occurs on the delicate tissues inside your mouth. It is usually light-colored at its base and can have a red exterior border. A cold sore or fever blister, on the other hand, usually occurs on the outside of the mouth, usually on or near the nose or lips. A cold sore is contagious because it is caused by the herpes simplex virus, and it is usually painful and filled with fluid. In most cases, patience is the best medicine for treating canker sores. A healthy diet and good oral hygiene are usually the best remedy, but some special rinses and anesthetics can help. Cold sores can be treated effectively with some over-the-counter topical creams; sometimes, an antiviral medication will be prescribed by your doctor.
By liv2run224 April 15, 2024
Choosing a Toothbrush Never before has there been such a dizzying array of toothbrushes on the market. Consumers are inundated with new designs, materials, attachments, and colors. Whatever toothbrush design you choose, the most important thing is that you use the toothbrush at least 2-3 times a day. Moreover, how long you spend brushing your teeth is as critical as how often you brush. This ensures complete plaque removal in hard to reach areas. Mechanical and manual toothbrushes Our dental team highly recommends a mechanical (electric) toothbrush. The pulsations break up plaque efficiently. Many models now have timers to remind you to brush longer. It is always nice to have a backup manual toothbrush. When choosing a manual toothbrush, look for a compact head with very soft, rounded bristles.
By liv2run224 April 15, 2024
Crowns Crowns are synthetic caps, usually made of a material like porcelain, placed on the top of a tooth. Crowns are typically used to restore a tooth's function and appearance following a restorative procedure such as a root canal. When decay in a tooth has become so advanced that large portions of the tooth must be removed, crowns are often used to restore the tooth. Crowns are also used to attach bridges, cover implants, prevent a cracked tooth from becoming worse, or an existing filling is in jeopardy of becoming loose or dislocated. Crowns also serve an aesthetic use, and are applied when a discolored or stained tooth needs to be restored to its natural appearance. Procedures A tooth must usually be reduced in size to accommodate a crown. A cast is made of the existing tooth and an impression is made. The impression is sent to a special lab, which manufactures a custom-designed crown. In some cases, a temporary crown is applied until the permanent crown is ready. Permanent crowns are cemented in place. Crowns are sometimes confused with veneers, but they are quite different. Veneers are typically applied only to relatively small areas. Caring For Your Crowns With proper care, a good quality crown could last up to eight years or longer. It is very important to floss in the area of the crown to avoid excess plaque or collection of debris around the restoration. Certain behaviors such as jaw clenching or bruxism (teeth grinding) significantly shorten the life of a crown. Moreover, eating brittle foods, ice or hard candy can compromise the adhesion of the crown, or even damage the crown.
By liv2run224 April 15, 2024
Crowns and Bridges Bridges Bridges are natural-looking dental appliances that can replace a section of missing teeth. Because they are custom-made, bridges are barely noticeable and can restore the natural contour of teeth as well as the proper bite relationship between upper and lower teeth. Bridges are sometimes referred to as fixed partial dentures because they are semi-permanent and bonded to existing teeth or implants. There are several types of fixed dental bridges (cannot be removed), including conventional fixed bridges, cantilever bridges and resin-bonded bridges. Unlike a removable bridge, which you can take out and clean, your dentist can only remove a fixed bridge. Porcelain, gold alloys, or combinations of materials are usually used to make bridge appliances. Appliances called implant bridges are attached to an area below the gum tissue, or the bone. Crowns Crowns are synthetic caps, usually made of a material like porcelain, placed on the top of a tooth. Crowns are typically used to restore a tooth's function and appearance following a restorative procedure such as a root canal. When decay in a tooth has become so advanced that large portions of the tooth must be removed, crowns are often used to restore the tooth. Crowns are also used to attach bridges, cover implants, prevent a cracked tooth from becoming worse, or an existing filling is in jeopardy of becoming loose or dislocated. Crowns also serve an aesthetic use, and are applied when a discolored or stained tooth needs to be restored to its natural appearance. Procedures A tooth must usually be reduced in size to accommodate a crown. An impression is then made from the existing tooth to create a custom-designed crown. The impression is sent to a special lab, which manufactures a custom-designed crown. In some cases, a temporary crown is applied until the permanent crown is ready. Permanent crowns are cemented in place. Crowns are sometimes confused with veneers, but they are quite different. Veneers are typically applied only to relatively small areas. Caring For Your Crowns With proper care, a good quality crown could last up to eight years or longer. It is very important to floss in the area of the crown to avoid excess plaque or collection of debris around the restoration. Certain behaviors such as jaw clenching or bruxism (teeth grinding) significantly shorten the life of a crown. Moreover, eating brittle foods, ice or hard candy can compromise the adhesion of the crown, or even damage the crown.
By liv2run224 April 15, 2024
Dental Emergencies A knocked out tooth or bitten tongue can cause panic in any parent, but quick thinking and staying calm are the best ways to approach such common dental emergencies and prevent additional unnecessary damage and costly dental restoration. This includes taking measures such as application of cold compresses to reduce swelling, and of course, contacting our office as soon as possible.
By liv2run224 April 15, 2024
Diabetes People living with diabetes are vulnerable to a host of systemic problems in their entire body. Unfortunately, the mouth and teeth are not immune from such problems, and many diabetics with oral problems go undiagnosed until conditions become advanced. Infections and other problems such as receding gums and gum disease, or periodontal disease, are common afflictions among diabetics for many reasons; for instance, diabetics often are plagued by diminished saliva production, which can hamper the proper cleansing of cavity-causing debris and bacteria from the mouth. In addition, blood sugar levels that are out of balance could lead to problems that promote cavities and gum disease. As with any condition, good oral hygiene, including regular brushing, flossing and rinsing, as well as the proper diabetic diet, will go a long way in preventing needless problems.
By liv2run224 April 15, 2024
Denture Care 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.
By liv2run224 April 15, 2024
Dry Mouth 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.
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