Why Do Dentures Break?

Our denture experts are dedicated to providing top-quality dental care, and one aspect we consider crucial is addressing the common issues that our patients encounter with their dentures. Dentures are not just prosthetic devices; they are a vital part of our patients’ lives, significantly influencing their oral health and overall well-being. It is essential to understand why dentures break and how to prevent it. In this article, we will delve into the factors contributing to denture breakage and what to do if this does happen. 

Ageing Dentures and Their Impact on Fit

One of the primary reasons behind denture breakage is the natural ageing process of these oral prosthetics. As dentures age, the fit tends to become looser and less secure within the oral cavity. This diminishing fit can lead to rocking or shifting of the dentures during daily activities, such as speaking and chewing. When the fit is not snug, the distribution of biting forces becomes uneven, placing undue stress on specific areas of the denture, increasing the risk of fractures.

To mitigate the effects of ageing dentures, regular appointments with experienced dentists are essential to preventing the need for a new set of dentures. During these consultations, your dentist will assess the fit of your dentures and recommend precise adjustments or replacements when deemed necessary. Ignoring the issue of an ill-fitting denture can lead to not only breakage but also discomfort and potential harm to your gums and supporting structures.

Repetitive Flexing and its Consequences

The constant flexing of dentures while in use is another significant contributor to their breakage. As the fit loosens over time, dentures can move and shift, causing repetitive flexing that weakens the plastic material constituting the denture base. This weakening can lead to cracks or, in severe cases, complete fractures in the material, rendering the denture unusable until it undergoes repairs or replacement.

Visualise repeatedly bending a piece of plastic back and forth – it will inevitably weaken and eventually break. Dentures are no exception to this principle. The continuous flexing places them at risk of fractures, emphasising the need for timely maintenance and assessment.

Risks to Embedded Teeth

Dentures typically feature artificial teeth that are firmly embedded in the denture base. These teeth are designed to mimic the appearance and function of natural teeth, ensuring comfortable chewing and speech. However, the continuous flexing resulting from a loose denture fit can also strain these embedded teeth.

The ongoing movement and stress on the embedded teeth may lead to their loosening or, in some cases, detachment from the denture base. This affects both the aesthetics and functionality of the denture, necessitating costly and time-consuming repairs or replacements. Addressing this issue before it escalates is of paramount importance.

Preventing Denture Breakage with The Mobile Denture Repair Company

To avoid the inconvenience and expense of denture breakage, we recommend a series of proactive measures:

  1. Regular Dental Check-ups – Dental experts encourage patients to schedule regular dental check-ups to assess the fit and condition of their dentures.
  2. Proper Cleaning and Maintenance – Dentures should be cleaned daily and handled with care to prevent unnecessary stress on the material.
  3. Avoid DIY Repairs – Attempting DIY repairs of broken dentures can often worsen the damage. Seek the required expertise for professional repairs.
  4. Consider Denture Adhesives – In specific cases, denture adhesives can enhance the fit and reduce movement, aiding in the prevention of breakage.


Understanding the common causes of denture breakage is paramount in maintaining oral health and overall well-being. Ageing dentures and repetitive flexing due to a loose fit can lead to material fractures or even the loss of embedded teeth. Experts emphasise the importance of regular dental check-ups and proper maintenance to ensure the integrity and longevity of your dentures. Our team members are personally dedicated to providing expert denture repair services and are committed to preserving the comfort and functionality of your smile. If you have any concerns about your dentures, we encourage you to consult with our professionals for the most appropriate course of action.

Medically Reviewed by:

Dip CDT RCS (Eng) Clinical Dental Technician
Determined to remain at the cutting edge of modern Dental Technology, David recently completed an intense training course in producing dentures that genuinely recreate the natural facial structures which are lost during the ageing process through tooth loss and gum regression. He, and his many patients, are overjoyed with the natural appearance and facial proportions which this new methodology offers.