10921 Dental Bridges

Overview

A dental bridge is a fixed false tooth (or teeth) that fills the gap left by a missing tooth. It is called a bridge because it literally spans the space, with the new tooth held in place by caps (called crowns) fitted over the healthy teeth on either side — or, in some cases, by small titanium posts set into the jawbone (dental implants). Unlike dentures, a bridge is glued in place and you do not take it out at night. It is designed to look and work like your own teeth.

Yes. Replacing missing teeth is one of the most common jobs in dentistry, and bridges have been used successfully for decades.

Anyone who has lost one or more teeth. This is more likely as people get older, but teeth can be lost at any age through decay, gum disease or injury.

Symptoms

Common symptoms

• A visible gap where a tooth is missing, which you may feel self-conscious about
• Food getting stuck in the gap, or trouble chewing on one side
• Other teeth slowly tipping or drifting into the space
• Changes in how you bite or how your jaw feels
• A slight lisp or change in how some words sound
• If you already have a bridge: it feels loose, food traps under it, or the gum underneath looks red and puffy

Symptoms in children

• Children rarely need a bridge. Baby teeth are usually left to fall out on their own, and a gap from a lost baby tooth is normal.
• If a child is born without certain teeth, or loses a permanent tooth through injury, a dentist may suggest a temporary replacement while the jaw is still growing.
• Any decision about tooth replacement in a child is usually made with a specialist children's dentist, because the jaw is still changing shape.

Symptoms in older adults

• Tooth loss is more common with age, so bridges, dentures and implants are often discussed together.
• A dry mouth (from some health conditions or medicines) raises the risk of decay around a bridge, so cleaning needs extra care.
• Gum disease becomes more common, and healthy gums are what hold the supporting teeth firm.
• Shrinking gums can leave the edge of a bridge exposed, so regular check-ups help catch this early.

Causes

Main causes

• Tooth decay that has damaged too much of a tooth to be repaired
• Gum disease that has loosened a tooth until it had to be removed
• An injury or accident that knocked a tooth out
• A tooth that cracked or failed after earlier dental work, such as a root canal treatment
• Heavy wear from grinding or acid erosion
• Some people are simply born without certain adult teeth

Risk factors

• Not brushing twice a day with fluoride toothpaste, or not cleaning between the teeth
• Smoking or vaping, which harms gum health
• A high-sugar diet, especially sugary drinks and snacks between meals
• Diabetes that is not well controlled
• A dry mouth, which allows decay to spread faster
• Grinding or clenching your teeth at night
• Skipping regular dental check-ups, so problems are found late
• Playing contact sports without a mouthguard
• Previous dental treatment that has worn or failed over time

When to see a doctor

See a doctor urgently if:

• A tooth has been knocked out or badly loosened — treat this as an emergency and contact a dentist straight away
• Your bridge feels loose, has come off, or is broken
• You have facial swelling, fever, or pain that is getting worse
• A sharp edge is cutting the inside of your mouth
• You cannot chew because of pain

Book a routine appointment if:

• You have a missing tooth and would like to talk about replacing it
• Food keeps getting stuck in a gap or under your bridge
• Your bite feels uneven, or you are chewing mostly on one side
• You feel self-conscious about a gap when smiling or talking
• It has been more than a year since your last dental check-up

Diagnosis

Your dentist will look in your mouth and check the gap, the teeth on either side and your gums. They will ask what happened to the missing tooth, whether anything hurts, and about your general health and any medicines you take. They will also look at how your teeth bite together. Usually they will take an X-ray to see the roots, bone and any decay that is not visible from the outside. Then they will talk you through the options — a bridge, a dental implant, a partial denture, or leaving the gap as it is — along with the pros, cons, cost and time each one takes.

Tests that may be done

• A visual dental examination of the gap, surrounding teeth and gums
• Dental X-rays to check roots, bone levels and hidden decay
• A bite check to see how your upper and lower teeth meet
• Gum measurements to check that the supporting teeth have healthy gums
• Impressions, a scan or photographs of your teeth to plan the bridge
• Occasionally, a 3D scan if implants are being considered

What to expect at your appointment

The appointment is short and should not be painful. If you need X-rays, they take a few minutes and use a very small amount of radiation. You do not have to decide on the day — it is fine to go home, think it over, ask about costs and come back with questions.

Treatment

A bridge replaces the missing tooth with a fixed one that matches your other teeth. The most common type involves trimming the teeth on either side of the gap so that caps can be fitted over them; the new tooth is joined to these caps. In an implant-supported bridge, small posts are placed into the jawbone and the bridge is attached to them. Treatment usually takes two or more visits: the first to prepare and take a mould or scan, the second to fit the finished bridge. You will normally have a temporary bridge in the meantime. The area is numbed first, so it should not hurt.

Self-care at home

• Brush twice a day with a fluoride toothpaste, reaching the edges of the bridge carefully
• Clean under the bridge every day with interdental brushes, floss threaders or a special bridge cleaner your dentist shows you
• Avoid very hard foods such as ice, boiled sweets or unpopped popcorn kernels, which can crack a bridge
• Do not use your teeth to open packets or bite your nails
• If you grind your teeth, ask your dentist about a night guard
• Keep up regular check-ups so small problems under the bridge are found early
• Give yourself a week or two to get used to the feel — mild sensitivity to hot and cold is common at first

Medical treatments

Treatment is almost always done in the dental chair rather than in hospital. Your dentist will numb the area before working, and may offer sedation if you are very anxious. After fitting, you may have some tenderness for a few days; a pharmacist can advise you on suitable pain relief. Your dentist may also recommend fluoride products or a routine to help keep the area around the bridge clean, and will treat any gum problems or decay before fitting the bridge so it has a healthy foundation.

When is surgery considered?

Fitting an ordinary bridge is not surgery — it is done in the dental chair under local anaesthetic. An implant-supported bridge does involve a small surgical procedure to place the implant posts in the jaw, often done by a dentist with extra training or a specialist. This is usually a day procedure with local anaesthetic, and you would go home the same day.

Living with this condition

Most people adjust to a bridge quickly. For the first week or two it may feel bulky or strange, and hot and cold foods may feel more sensitive. Your speech may sound slightly different at first, but this normally settles. The most important daily habit is cleaning underneath the bridge, because that is where food and bacteria collect. Your dental team can show you exactly how to do this with the right brush or floss for your bridge.

Lifestyle tips

• If you smoke, stopping is the single biggest thing you can do for your gums and for the long-term success of a bridge
• Wear a mouthguard for contact sports
• Limit how often you have sugary foods and drinks — it is the number of times a day that matters most
• Keep a regular dental routine, including a check-up at the interval your dentist recommends
• Tell your dentist about any new medicines, as some cause a dry mouth

Diet and exercise

You do not need a special diet, but be sensible with very hard or sticky foods that could pull or crack a bridge. Eat a balanced diet with plenty of vegetables and limit fizzy and sugary drinks, especially between meals. Drink water after eating. Exercise is good for your general health and does not affect a bridge — just protect your mouth with a mouthguard if you play a contact sport or do martial arts.

Mental health and emotional wellbeing

Missing teeth and dental treatment can affect how you feel about yourself. Many people feel embarrassed about a gap, avoid smiling in photos, or feel anxious about going to the dentist. These feelings are very common and worth mentioning. Fixing a gap often gives people a real boost in confidence, but it is also okay to say if dental visits make you nervous — dentists are used to this and can adapt the appointment for you.

Prevention

You cannot always avoid needing a bridge, but you can greatly reduce the chance of losing a tooth. Brush twice a day with a fluoride toothpaste, clean between your teeth daily, keep sugary foods to mealtimes, do not smoke, wear a mouthguard for sport, and go for regular dental check-ups. If you have diabetes, keeping it well controlled helps protect your gums.

Screening programmes

Regular dental check-ups are the main way problems are caught early — before a tooth needs to be removed. Your dentist will tell you how often you need to come, based on your gum health and history. Tell them if you notice bleeding gums, a loose tooth or a change in your bite between visits.

Complications

If left untreated

• Teeth on either side of a gap can slowly tip into the space, and the opposing tooth can grow down or up
• Your bite can change, which may cause jaw joint discomfort or headaches
• Food collecting in the gap raises the risk of decay and gum disease on nearby teeth
• The jawbone in the empty space can gradually shrink over time
• Chewing may become one-sided or uncomfortable, which can affect what you eat
• If a bridge is not cleaned properly, decay can form under it and the bridge may loosen or fail
• A loose bridge can break, or in rare cases come off and be swallowed

Long-term outlook

The outlook is good. Dental bridges are a well-established, reliable way to replace missing teeth, and most people get many years of comfortable use from them. The key is daily cleaning under the bridge and regular check-ups, which is what keeps the supporting teeth healthy. If a bridge does fail, there are usually other options, so it is worth talking to your dentist rather than putting it off.

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