Why a well fitting denture became loose after few hours of insertion?

Several factors can contribute to a well-fitting denture becoming loose after a few hours of insertion, including:

- Changes in the oral cavity: The oral cavity is constantly changing due to factors such as bone resorption, tissue remodeling, and muscle movement. These changes can affect the fit of the denture, causing it to become loose.

- Improper denture design: If the denture is not properly designed to fit the individual's mouth, it may not remain stable and secure.

- Inadequate retention: The denture may not have sufficient retention mechanisms, such as clasps or suction, to keep it in place.

- Excessive force on the denture: Biting or chewing on hard foods, or applying excessive force to the denture, can dislodge it and cause it to become loose.

- Dry mouth: If the mouth does not produce enough saliva, the denture may not adhere properly to the tissues and become loose.

- Poor denture hygiene: Lack of proper denture cleaning and care can lead to a build-up of plaque and bacteria, which can cause inflammation and irritation of the tissues, affecting the fit of the denture.

If you have a denture that has become loose after a few hours of insertion, it's important to consult with your dentist or prosthodontist. They can assess the cause of the problem and make any necessary adjustments or repairs to ensure a proper fit and stability of the denture.