A dental bridge is secured primarily through a precise fit and strong bonding to the adjacent teeth, called abutment teeth.
Here's a breakdown of the key elements ensuring a dental bridge's security:
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Precise Fitting: The bridge, including the pontic (artificial tooth) and the crowns that fit over the abutment teeth, is meticulously crafted to match the specific contours of your mouth. This precise fit ensures that the bridge sits correctly and distributes biting forces evenly.
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Cement Bonding: Dental cement, a strong adhesive, is used to permanently bond the crowns of the bridge to the prepared abutment teeth. This cement creates a strong and durable connection, holding the bridge securely in place.
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Preparation of Abutment Teeth: Before the bridge is placed, the abutment teeth are carefully prepared. This often involves reshaping them so the crowns can fit properly. The preparation provides a stable and retentive surface for the crowns to grip onto.
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Proper Occlusion (Bite): The dentist carefully adjusts the bridge to ensure it doesn't interfere with your bite. Correct occlusion minimizes stress on the bridge and the abutment teeth, preventing premature failure.
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Healthy Supporting Structures: The long-term security of a dental bridge depends on the health of the gums and bone supporting the abutment teeth. Good oral hygiene and regular dental checkups are essential to maintain these structures.
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Materials Used: The materials used to create the bridge also contribute to its security. Durable materials like porcelain fused to metal or zirconia are commonly used because of their strength and ability to withstand biting forces.
In summary, a dental bridge's security relies on a combination of factors: a precise fit, strong cement bonding, careful preparation of the abutment teeth, a balanced bite, healthy supporting tissues, and durable materials.