The advantages of overdenture are all of the following, except
**Core Concept**
An overdenture is a type of removable dental prosthesis that is supported by a small number of remaining natural teeth, usually implants or roots. The advantages of overdentures include improved retention, stability, and patient satisfaction.
**Why the Correct Answer is Right**
Overdentures offer several benefits over conventional dentures, including reduced bone resorption, improved chewing efficiency, and enhanced aesthetics. The remaining teeth or implants provide a stable foundation for the overdenture, allowing for more confident speech and eating. This is particularly important for patients with limited dentition or those who have experienced significant tooth loss.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because overdentures do not necessarily require a significant increase in the patient's overall dental budget. In fact, overdentures can be a cost-effective solution for patients who have already invested in dental implants or root retained teeth.
* **Option B:** This option is incorrect because overdentures do not inherently prevent bone resorption. However, they can help to mitigate this effect by providing a stable foundation for the prosthesis and reducing the pressure on the surrounding bone.
* **Option C:** This option is incorrect because overdentures are not necessarily a "last resort" for patients with limited dentition. In fact, they can be a viable treatment option for patients who have experienced significant tooth loss, but still have a few remaining teeth or implants.
**Clinical Pearl / High-Yield Fact**
When evaluating patients for overdentures, it is essential to assess the remaining natural teeth or implants for their suitability as a support base. This includes evaluating the size, shape, and position of the teeth or implants, as well as their overall health and stability.
**Correct Answer:** A.