A dental bridge is a fixed prosthetic device used to replace one or more missing teeth by "bridging" the gap between them. It consists of artificial teeth (pontics) anchored to adjacent natural teeth or dental implants. Dental bridges restore the appearance and function of missing teeth, helping with chewing, speaking, and maintaining the shape of the face.
Types of Dental Bridges:
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Traditional Dental Bridge:
- Description: The most common type, consisting of one or more artificial teeth held in place by dental crowns cemented onto the adjacent natural teeth (called abutment teeth).
- Pros: Strong and durable, typically used for molars and premolars.
- Cons: Requires the adjacent teeth to be filed down to accommodate the crowns, even if they are healthy.
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Cantilever Dental Bridge:
- Description: Similar to a traditional bridge, but it is supported by only one adjacent tooth rather than two.
- Pros: Useful when there is only one natural tooth next to the gap.
- Cons: Puts more pressure on the supporting tooth, which can lead to complications if not carefully planned.
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Maryland Bonded Bridge (Resin-Bonded Bridge):
- Description: This bridge uses a framework made of metal or porcelain bonded to the backs of the adjacent teeth, holding the pontic in place without the need for crowns.
- Pros: Less invasive, as the adjacent teeth don’t need to be filed down.
- Cons: Not as strong as traditional bridges and is more likely to become dislodged, making it ideal only for front teeth.
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Implant-Supported Bridge:
- Description: Instead of being supported by natural teeth, this type of bridge is anchored to dental implants placed into the jawbone.
- Pros: Very stable and durable; does not rely on natural teeth for support.
- Cons: Requires multiple surgeries (for implants) and a longer healing time, making it more costly and time-consuming.
Procedure for Getting a Dental Bridge:
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Consultation and Examination:
- The dentist assesses the gap, adjacent teeth, and overall oral health. X-rays or scans may be taken to evaluate the supporting teeth or bone structure.
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Tooth Preparation (for Traditional or Cantilever Bridges):
- The abutment teeth (the ones adjacent to the gap) are reshaped by removing a portion of their enamel to make room for the crowns.
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Impressions:
- After the teeth are prepared, impressions of the teeth are taken to create a mold. The dental bridge is custom-made in a dental lab to fit precisely in the mouth.
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Temporary Bridge:
- While the permanent bridge is being made, a temporary bridge is placed to protect the exposed teeth and gums.
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Placement of the Permanent Bridge:
- Once the custom bridge is ready, the dentist removes the temporary bridge and fits the permanent one. Adjustments are made to ensure it fits comfortably and functions well. The bridge is then cemented into place.
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Follow-up:
- The dentist may schedule a follow-up visit to check the fit and function of the bridge and ensure you are comfortable with it.
Benefits of a Dental Bridge:
- Restores Functionality: Allows you to chew and speak properly, as missing teeth can interfere with these functions.
- Improves Aesthetics: Fills the gap left by missing teeth, improving the appearance of your smile.
- Maintains Facial Shape: Missing teeth can cause the face to sag, but a bridge helps maintain the shape and structure of the face.
- Prevents Teeth Shifting: When a tooth is missing, the adjacent teeth may shift out of position, leading to bite problems or crooked teeth. A bridge prevents this from happening.
Drawbacks of a Dental Bridge:
- Alteration of Healthy Teeth: For traditional bridges, healthy adjacent teeth need to be reshaped to support the bridge, which can weaken them over time.
- Potential for Future Decay: There is a risk that the supporting teeth may develop decay or other dental issues if not cared for properly.
- Lifespan: Bridges typically last 5-15 years, depending on oral hygiene and care, but they may need to be replaced eventually.
Caring for a Dental Bridge:
- Oral Hygiene: Brush twice daily and floss regularly, especially around the bridge and supporting teeth. Special flossing tools (floss threaders or interdental brushes) can help clean under the bridge.
- Regular Checkups: Regular dental checkups and professional cleanings are essential to maintaining the health of the bridge and surrounding teeth.
- Diet: Avoid sticky or hard foods that could dislodge or damage the bridge.