How Long Does Tooth Cement Last?

This blog post will address the question, “how long does tooth cement last?” and cover topics like what dental cement is, different types of dental cement, their advantages and disadvantages, how long do dental crowns last, what dental crowns are, when do you need a dental crown, which dental crown should you prefer and if there is any special care that you need to take for your crown.

How Long Does Tooth Cement Last?

Tooth cement may last anywhere between 5-15 years depending upon the type of tooth cement used, the expertise of the dentist who performed the procedure, and the oral habits of the person who received the treatment.

What Are Dental Cement?

Dental Cement are materials used in dentistry to primarily attach crowns and orthodontic appliances to your tooth. It can be regarded as a glue used in dentistry.

Dental cement may also be used as pulp-protecting agents, temporary restorations, and cavity fillers.

What Are The Different Types Of Dental Cement?

Different types of dental cement are:

  • Zinc Phosphate Cement
  • Zinc Oxide – Eugenol Cement
  • Polycarboxylate Cement
  • Glass Ionomer Luting Cement
  • Resin-modified Glass Ionomer Cement
  • Composite Cement
  • Resin-based Cement
  • Calcium Hydroxide Cement

Zinc Phosphate Cement

Low in pricePoor bonding with the tooth
Easy to useIrritates pulp leading to pulpitis
Easy to locate on X-raysSensitivity on eating and drinking too hot or cold 

Zinc Oxide – Eugenol Cement

Pulp healing abilityLow strength and abrade easily
Strong sealSoluble in oral fluids
Doesn’t break easily on marginsNo or less resistance against caries

Polycarboxylate Cement

Does not irritate pulpHard to clean up
Strong bonding with the tooth structureQuickly hardens and thus dentist’s find it hard to use

Glass Ionomer Luting Agent

Releases fluorideMay change appearance after absorbing water
Forms very strong bond with enamel and dentinAcidic in nature and therefore irritates pulp and may cause pulpitis after use

Resin-modified Glass Ionomer Cement

Fluoride releasing potentialAcidic in nature and therefore irritates pulp and may cause pulpitis after use
Easy to use and clean by the dentistAbsorbs water and changes shape or may even crack

Composite Cement

Strongly bonds to the tooth structureLoses bond strength over a period of time and has to be replaced
Does not dissolve in the oral fluidsExpands and may distort (Hygroscopic expansion)

Resin-based Cement

Strong bonding to the tooth structureRequires dental professional to be an expert in handling and mixing such type of cement
Insoluble to the oral fluidsLonger chair time
Does not irritate the pulpDifficult to identify on X-Rays as not all are radiopaque

Calcium Hydroxide Cement

Used as a pulp protecting agentBreaks down easily and thus cannot be used to bond restorations to tooth structure
Anti-bacterial in nature and prevent caries attackHighly soluble to oral fluids
Helps in remineralisation and healing of the cavities in their earliest stageLow strength to be used as a bonding cement

How Long Do Dental Crowns Last?

The lifetime of dental crowns may vary depending on several factors like:

  • Type of tooth crown used
  • Amount of pressure to which tooth crown is exposed
  • Oral habits of the person receiving dental crown
  • Teeth grinding
  • Biting fingernails
  • Eating and drinking too hot or cold
  • Opening coke bottle

What Are Dental Crowns?

Dental crowns are cap-like structures resembling the shape of the tooth. They are placed on the top of the visible tooth structure to restore the appearance and functionality of the repaired tooth.

Why Do You Need A Dental Crown?

You may need a dental crown for multiple reasons:

  • To restore aesthetics
  • To support a weak tooth structure
  • To restore a broken or worn out tooth
  • After a root canal to improve functionality and esthetics

Which Dental Crown Should I Prefer?

There are different types of dental crowns depending on the material with which they are made of:

  1. Metal Crowns
  • Made of metals like gold and nickel
  • Lasts the longest
  • Tooth removal is minimal
  • Only drawback is that they are not esthetically good
  • Good choice for molars
  1. Porcelain-fused Metal Crowns
  • Has all the features of metal crowns
  • Porcelain is added and infused to make it more aesthetic
  • Porcelain part is weaker compared to the metal part of the crown. Thus porcelain part may break or chip off
  • May wear down the opposite teeth
  • Good choice for front or back teeth
  1. All-Resin Crowns
  • Less expensive but does not last longer and may break
  1. All-Ceramic or All-Porcelain Crowns
  • Best esthetically
  • Not as strong as porcelain-fused metal crowns
  • May wear the opposite teeth
  • Good choice for front teeth

Depending on your budget and recommendations of your dentist, you may choose the appropriate dental crown for you.

Do I Need Any Special Care For My Dental Crown?

You may not need any special care for your dental crown. To protect the natural tooth beneath the crown, you must follow good oral hygiene practises like brushing your teeth twice a day, flossing daily once, and occasional mouthwash.


This blog post addressed the question, “how long does tooth cement last”. We understood what dental cement is, different types of dental cement, their advantages and disadvantages, how long do dental crowns last, what dental crowns are, why you may need a dental crown, which dental crown should you prefer and if there is any special care that you need to take for your crown.

FREQUENTLY ASKED QUESTIONS (FAQs): How Long Does Tooth Cement Last?

Is dental cement permanent?

Dental cement may be permanent or temporary depending on their properties. Permanent dental cement is used to permanently restore the crown on your tooth and is stronger and durable.

Can dental cement fall out?

Yes! Dental cement can fall out even after proper care and hygiene. Dental cements have a certain lifetime and may fall out once it is complete.

Dental cement may fall out before their lifetime is complete due to several reasons including bad oral habits like teeth grinding which may wear down the crown material.

How long does dental temporary cement last?

Dental temporary cement may last not more than one to three weeks and has to be replaced after that with a permanent dental cement.

How long does it take dental cement to dry?

It takes almost one to three hours for a dental cement to dry and set depending on their type. Hence, it is advised to eat only after one hour of the procedure and from the opposite side of the crown applied.

Can you buy dental glue over the counter?

Yes, you can buy dental glue or cement from over the counter stores. Dental cement is available over the counter but to apply them you may need a dental professional.

How do dentists remove dental cement?

Dentists use special dental tools to remove dental cement. To loosen the crown, your dentist may use a special tool that fits the edge of the crown and using it they break the strong adhesive bond between the crown and natural tooth.

How Long Does It Take To Remove The Dental Cement?

Your dentist may take less than a minute to remove the dental cement and thus remove the dental crown.

Do Fillings Need To Be Replaced?

Yes, fillings need to be replaced once it falls out or wears out leaving the cavity exposed to bacterial infiltration.

Tooth cavity filling materials are constantly subjected to biting force, or may be stress from teeth clenching, wearing them out slowly and slowly, ultimately leading to their fall out, cracking or chipping off.

Once fillings are worn out, replacement is needed to prevent bacterial invasion and cavity reappearance.

Can cavities come back after filling?

Yes! A cavity may reappear even after filling due to bacterial contamination of the tooth cavity resulting from multiple causes such as microleakage, faulty crown placement, filling material falling out due to poor after-care, inadequate debridement and sealing of the cavity and poor oral hygiene after filling.

In order to prevent cavities from reappearing even after filling, daily brushing your teeth twice is essential along with daily flossing and occasional mouthwash.

However, if the reappearance of the cavity is due to reasons other than poor oral hygiene, then your dentist will examine and fix the issue as suitable.

If you feel any hole or pain in the tooth that has filling, immediately consult your dentist.

Can I wait 6 months to fill a cavity?

You must not wait for 6 months to get your cavity filled as the cavities may grow as fast as six months and reach your pulp causing tooth pain, sensitivity and may even lead to tooth loss.


Dental Cement – an overview | ScienceDirect Topics

In Search of the Ideal Dental Cement…. Have We Arrived? (2015)

What’s a Luting Agent? Types of Dental Cements to Secure Your Restoration – Colgate

Dental Crowns. (2020)

How to Care for a Temporary Crown. (2019)

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