Dental crowns are a common restorative procedure used to protect and strengthen damaged teeth. While the process of cementing a crown is often described as "gluing," it's more accurate to say that dentists use specialized dental cements to bond the crown securely to the prepared tooth. There's no such thing as a truly "permanent" glue in dentistry, as even the strongest cements can eventually fail under certain circumstances. However, modern dental cements are designed for long-lasting adhesion, providing years of reliable service. This article explores the materials and techniques dentists utilize, addressing common questions and concerns surrounding crown cementation.
What Kind of Cement is Used to Attach Dental Crowns?
Dentists utilize various types of dental cements to attach crowns, each with its own properties and benefits. The choice of cement depends on several factors, including the type of crown, the patient's overall health, and the specific clinical situation. Some common types include:
- Resin cements: These are among the most popular choices due to their strong bond strength, esthetics (they’re tooth-colored), and ease of use. They are often preferred for porcelain crowns.
- Glass ionomer cements: These release fluoride, which helps protect the tooth structure from decay. They are often chosen for their biocompatibility and ability to bond to dentin.
- Zinc phosphate cements: While less commonly used now due to their higher acidity, they are still sometimes employed for their high compressive strength.
- Hybrid cements: These combine properties of resin and glass ionomer cements, offering a balance of strength, fluoride release, and esthetics.
How Long Does Dental Crown Cement Last?
The longevity of a dental crown's cementation depends on several factors. Proper preparation of the tooth by the dentist is crucial. A well-fitted crown and meticulous cementation technique significantly contribute to long-term success. Additionally, factors such as patient oral hygiene, diet, and bruxism (teeth grinding) can impact the lifespan of the cement. While some crowns might last decades, others may require replacement or recementation sooner, potentially due to wear and tear or trauma. Regular dental check-ups are essential to monitor the integrity of your crowns.
Can Dental Crowns Fall Out?
Yes, though it’s infrequent with proper care and a well-placed crown. A crown can become loose or fall out due to several reasons:
- Poor cementation: Inadequate preparation or technique during the initial placement.
- Trauma: A significant impact to the mouth can dislodge a crown.
- Decay: Untreated decay around the tooth can weaken the bond.
- Bruxism (teeth grinding): Excessive grinding can put stress on the crown and cement.
- Wear and tear: Over time, the cement can degrade, leading to loosening.
What Happens If My Dental Crown Falls Out?
If your dental crown falls out, you should contact your dentist immediately. Do not attempt to re-cement it yourself. You might be able to temporarily secure it using a denture adhesive (as a temporary solution, only), but this is not a long-term solution and professional assessment is vital to avoid further damage. Your dentist will examine the situation and determine the best course of action, which may involve re-cementing the crown or fabricating a new one.
Is There a Way to Make Dental Crowns More Permanent?
While the term "permanent" is relative in dentistry, there isn't a single method to ensure a crown will never fail. However, maintaining excellent oral hygiene, avoiding hard or sticky foods that could dislodge the crown, and managing bruxism through techniques like mouthguards can significantly extend the lifespan of your crown and cement. Regular dental checkups for monitoring and preventive care are also vital.
How Much Does Recementing a Dental Crown Cost?
The cost of recementing a dental crown varies depending on factors like location, dentist fees, and the type of cement used. It is usually less expensive than getting a new crown. It's best to contact your dentist directly for an accurate estimate.
This information is for general knowledge and should not be considered a substitute for professional dental advice. Always consult with your dentist for any concerns regarding your dental crowns.
