Overview
A dental glue crown is the common name for the dental cement that holds a crown on your tooth. It is not a crown made of glue. This guide explains how dental crown glue works in plain terms.
Many people look up dental glue when a crown comes loose or falls off. This guide is for patients who want to understand dental cement, the different types, and what each one does. It covers temporary and permanent choices, what happens at the dental office, and when to see a specialist.
Dental crowns are caps that cover a weak or damaged tooth. The dental crown glue is what bonds the crown to the tooth structure underneath. Choosing the right dental cement matters for how long dental crowns last and how well they seal the tooth.
What Dental Crown Glue Actually Is
Dental glue is dental cement, a bonding material that attaches dental crowns to natural teeth. Different types of dental cement suit different crowns and different needs.
Types of Dental Cement
Dentists use several kinds of dental cement to hold dental crowns in place. Each type of dental crown glue has its own strength, sealing ability, and handling. The main families are zinc phosphate cement, glass ionomer cement, resin modified glass ionomer, and resin based cement.
The table below compares the four main types side by side. Your dentist weighs these traits against your crown material and your tooth before picking one.
<table><thead><tr><th>Cement type</th><th>Relative strength</th><th>Releases fluoride</th><th>Often used for</th></tr></thead><tbody><tr><td>Zinc phosphate</td><td>Strong</td><td>No</td><td>Metal crowns</td></tr><tr><td>Glass ionomer</td><td>Moderate</td><td>Yes</td><td>Many permanent crowns</td></tr><tr><td>Resin modified glass ionomer</td><td>Stronger than plain glass ionomer [1]</td><td>Yes</td><td>Crowns that need a good seal</td></tr><tr><td>Resin based</td><td>Strongest and most moisture resistant</td><td>No</td><td>Porcelain and other tooth-colored crowns</td></tr></tbody></table>
- Zinc phosphate cement: one of the oldest types of dental cement, often used with metal crowns for a strong, long-lasting hold.
- Glass ionomer cement: a dental glue that bonds to the tooth and releases fluoride over time, which may help protect the underlying tooth structure.
- Resin modified glass ionomer: combines glass ionomer with resin for more strength and a good seal [1].
- Resin based cement: a strong, moisture-resistant dental glue often chosen for porcelain crowns and other tooth-colored dental crowns.
Temporary Versus Permanent Cement
Dental cement comes in temporary and permanent forms. Temporary dental cement holds a temporary crown while a lab makes the final crown, and it is designed to be removed later. Permanent dental cement is the long-term dental crown glue that keeps the final crown in place for years.
A temporary crown protects the prepared tooth between visits. Because temporary dental cement is weaker on purpose, a temporary crown can sometimes loosen. That is usually normal and not an emergency, though you should still call your dentist [3].
Glass Ionomer and Resin Based Options
Glass ionomer is a popular permanent dental cement because it bonds to tooth structure and releases fluoride. Resin based dental cement is stronger and handles moisture well, which is why it is common for esthetic crowns. Research on resin modified glass ionomer has measured its bond strength to dentin, the layer just under the enamel [1].
A 2022 laboratory study tested how different surface treatments changed the bond strength of resin modified glass ionomer to caries affected dentin [1]. Studies like these help dentists pick the right dental glue for each tooth. Results vary by case, tooth condition, and technique.
What to Know Before You Get a Crown
Before getting dental crowns, know that your dentist picks the type of dental cement based on the crown material and how much healthy tooth remains.
Tooth preparation comes first. The dentist shapes the underlying tooth structure so the crown fits well. The amount of natural tooth left helps decide which dental crown glue works best. Metal crowns and porcelain crowns may call for different dental cement.
Dental crowns suit adults and teens whose teeth have finished growing. Children rarely need permanent dental crowns. If a crown falls off, keep it in a safe place and call your dentist. Over-the-counter dental glue kits exist, but they are a short-term fix only and are not a substitute for professional dental cement [3].
What to Expect During Treatment
Getting dental crowns usually takes two visits, with dental cement applied at each stage.
At the first visit, the dentist numbs the area and does the tooth preparation. They take an impression of the tooth and place a temporary crown using temporary dental cement. This protects the tooth until the new crown is ready.
At the second visit, the dentist removes the temporary crown and checks the fit of the final crown. They clean the tooth, apply the permanent dental cement, seat the crown, and wipe away the extra dental glue. A quick bite check confirms that crown placement is correct and comfortable.
- Tooth preparation and an impression of the tooth.
- A temporary crown placed with temporary dental cement.
- The lab builds your custom crown.
- The final crown is fitted and bonded with permanent dental cement.
- The bite is checked and excess dental crown glue is cleaned away.
Cost Factors
The cost of dental crowns varies widely, and the dental cement itself is usually included in the crown fee rather than billed on its own.
Costs vary by location, provider, and case complexity. Crown prices depend on the material, such as metal crowns versus porcelain crowns, and on lab fees. Re-cementing a loose crown with fresh dental glue usually costs less than making a new crown.
Many dental plans cover part of the cost of dental crowns when they are needed for health reasons. Crowns done for cosmetic reasons may not be covered. Ask your provider for a written estimate, and check your benefits, before treatment begins [3].
When to See a Specialist
See a prosthodontist, a dentist who specializes in restoring and replacing teeth, for complex crown work or when crowns keep failing.
Most patients can start with a general dentist. A general dentist places most dental crowns and handles routine dental cement work. A prosthodontist has three extra years of training after dental school in dental crown glue, crown design, and difficult cases [2]. Here is a simple way to think about who fits your situation. A general dentist is a good match for a single crown, a routine re-cementing, or a first crown on a healthy tooth. A prosthodontist is the better choice when you have several missing teeth, repeated crown failures, a worn-down bite, or a full-mouth plan that puts heavy stress on your dental crowns [2].
If your crown comes loose or falls off, use this step-by-step guide to decide what to do next.
- Is the crown causing severe pain, swelling, or bleeding? Call your dentist right away and ask to be seen the same day.
- Did you swallow or inhale the crown, or is breathing hard? Treat it as urgent and seek medical care now.
- Is the crown out but you feel fine? Keep the crown in a safe container and call your dentist within a day or two [3].
- Is a sharp edge cutting your tongue or cheek? Cover it with dental wax if you have it and book a prompt visit.
- Have your crowns come loose more than once? Ask your dentist whether a prosthodontist should review your bite and cement choice [2].
Find a Specialist
Finding the right specialist for dental crowns is easier with good resources. If you need complex crown work, have a crown that keeps coming loose, or want a second opinion on your dental cement options, visit the prosthodontics page to learn how prosthodontists restore teeth and to connect with one near you [2].
Search Prosthodontists in Your Area
