Why Do Dental Crowns Keep Falling Out

Dental crowns, also known as caps, are a common dental restoration used to restore the shape, size, and strength of damaged teeth. However, it can be frustrating when dental crowns keep falling out. There are several reasons why this may happen, and in this article, we will explore ten possible causes and provide some solutions to this recurring problem.

Poor Dental Hygiene

1. Lack of proper oral hygiene can contribute to dental crown failure. When plaque and bacteria build up around the tooth and crown, they can weaken the bond between the crown and the tooth, leading to it falling out. It is crucial to brush and floss regularly and visit the dentist for professional cleanings to maintain good oral hygiene.

2. Grinding or clenching teeth, also known as bruxism, can exert excessive force on dental crowns, causing them to become loose and fall out. Dentists may recommend the use of a nightguard to protect the crowns during sleep and minimize the effects of bruxism.

3. Age and wear and tear over time can weaken the adhesive used to secure dental crowns. As a result, the crown may come loose and eventually fall out. Regular dental check-ups can help identify any signs of deterioration and prompt necessary repairs or replacements.

Improper Fit or Crown Design

1. If a dental crown is not properly fitted, it can lead to premature failure. Ill-fitting crowns may not have enough surface area to bond securely to the tooth, causing them to loosen and eventually fall out. It is important for the dentist to ensure precise measurements and a secure fit during the crown placement process.

2. In some cases, the design of the dental crown itself may contribute to its failure. Poorly designed crowns, such as those with inadequate thickness or improper contouring, may not withstand the biting and chewing forces exerted during everyday activities. High-quality materials and meticulous craftsmanship are essential for long-lasting dental crowns.

3. The location of the dental crown can also impact its stability. Crowns placed on molars, which endure significant force during chewing, may be more prone to falling out compared to those on front teeth. Dentists may use additional retention methods or recommend alternative restorative options for molars to minimize the risk of crown failure.

Poor Cementation or Bonding

1. The use of low-quality cement or inadequate bonding techniques can compromise the stability of dental crowns. If the crown is not securely bonded to the tooth, it may dislodge and fall out. Dentists should use high-quality dental cement and follow proper bonding protocols to ensure a strong and durable bond between the crown and tooth.

2. Sometimes, saliva or moisture can interfere with the bonding process, leading to crown failure. Proper isolation techniques, such as the use of dental dams, can help create a dry environment for optimal bonding. Dentists should also ensure that the tooth surfaces are adequately cleaned before cementation to enhance the bond strength.

3. Allergic reactions to dental materials, particularly components of the cement used for crown placement, can cause inflammation and discomfort. In severe cases, allergic reactions may lead to the premature failure of dental crowns. Dentists should take into consideration any known allergies or sensitivities while selecting the appropriate dental materials for individuals.

Accidental Trauma or Injury

1. Dental crowns can be dislodged or fall out due to accidental trauma or injury to the mouth. A fall, sports-related impact, or biting into hard objects can cause the crown to become loose or entirely dislodge. In such cases, it is crucial to seek immediate dental attention. The dentist may attempt to reattach the crown, but a replacement may be necessary if the damage is extensive.

2. Eating sticky or hard foods can also place excessive strain on dental crowns, contributing to their failure. Avoiding foods that are overly sticky or require excessive force to bite into can help prolong the lifespan of dental crowns. It is essential to adopt good eating habits and use caution when consuming potentially damaging foods.

FAQs (Frequently Asked Questions)

1. Can a dental crown be reused if it falls out?

No, a dental crown cannot be reused once it falls out. It is essential to visit a dentist who will evaluate the crown's condition and determine whether it can be reattached or if a new crown is necessary.

2. How much does a dental crown cost?

The cost of a dental crown varies depending on several factors, including the material used, the location of the dental practice, and any additional procedures required. On average, dental crowns can cost between $800 and $2,500 per tooth.

3. How long do dental crowns typically last?

With proper care and maintenance, dental crowns can last between 10 and 15 years, or even longer. Regular dental check-ups and good oral hygiene practices are crucial for the longevity of dental crowns.