Dental Crowns and Bridges
What are Dental Crowns and Bridges?
If you’re facing the challenge of missing teeth, dental crowns and bridges can offer convenient solutions. In this article, we’ll explore what dental crowns and bridges are and delve into the procedures involved in obtaining dental crowns.
What is a Dental Crown?
A dental crown is a cap or cover that dentists place over a tooth, restoring its size, shape, and functionality. Dental crowns can enhance the strength and appearance of teeth. Several situations may warrant the need for a crown, such as large cavities that cannot be filled, cracked or worn-down teeth, post-root canal treatment, or to address poorly shaped or discolored teeth, improving your smile.
Dental crowns can be made from various materials, including ceramics, metal alloys, porcelain, porcelain-fused-to-metal, or composite resin. Regardless of the material, the crown is typically color-matched to blend seamlessly with your natural teeth.
What is a Dental Bridge?
A dental bridge consists of two or more dental crowns on either side of a gap caused by a missing tooth. A false tooth, called a pontic, is positioned between the crowns. Pontics can be made from alloys, porcelain, gold, or a combination of materials. The purpose of a dental bridge is to “bridge” the gap left by the missing tooth or teeth. The bridge is supported by natural teeth or dental implants.
Different Types of Crowns and Bridges Dental crowns can be classified into four main types based on the materials used:
Porcelain-Fused-to-Metal: These crowns are stronger than regular porcelain crowns as they are bonded to a metal structure. They are commonly used for front teeth, as the ceramic material blends well with the natural color of teeth.
All-Porcelain: This type of crown is ideal for front teeth due to its ability to match the color and translucency of natural teeth. However, the sealing ability may vary depending on the filling materials and the underlying tooth.
Base Metal Alloys: These crowns consist of non-noble metals known for their high resistance to corrosion. They require minimal tooth removal during the fitting process and offer excellent strength.
Gold Alloys: Made from a combination of gold and other metals like copper, gold alloy crowns are extremely durable and do not wear down the tooth structure. They are particularly suitable for molars.
Similarly, dental bridges can be categorized into four types:
Traditional Dental Bridges: These bridges use dental crowns (abutments) on either side of the gap to anchor the pontic (false tooth) in place. The adjacent teeth require enamel removal to accommodate the crowns. This is the most common type of bridge.
Cantilever Bridges: Similar to traditional bridges, cantilever bridges use a single abutment to support the pontic when only one side of the gap has a natural tooth adjacent to it.
Maryland Bridges: Maryland bridges involve a framework made of metal or porcelain that is bonded to the backs of adjacent teeth. The strength of this bridge relies on the bonding material used.
Implant-Supported Bridges: These bridges utilize dental implants for support instead of crowns or frameworks. Implants are placed for each missing tooth, providing a secure and comfortable bridge for multiple missing teeth.
The Procedure
The procedure for dental crowns typically involves two visits. During the first visit, the dentist examines the tooth, takes an X-ray, and prepares the tooth for the crown. An impression may be made for creating a digital 3D model. On the second visit, the permanent crown is placed, and adjustments are made for proper fit and comfort.
For dental bridges, the process also involves two appointments. During the initial visit, the dentist prepares the abutment teeth and places temporary bridges. On the subsequent visit, the permanent bridge is placed, ensuring it fits accurately.
Aftercare and Follow-up
Proper care and regular follow-up visits are essential after receiving dental crowns or bridges. Maintaining good oral hygiene practices, such as regular brushing and flossing, along with scheduling routine dental check-ups, will help ensure the longevity and functionality of the crowns and bridges.
Dental crowns and bridges offer effective solutions for missing teeth, providing both functional and aesthetic benefits. By understanding the different types of crowns and bridges available, along with the procedures involved, you can make informed decisions about restoring your smile and improving your overall oral health.