Final answer:
The area under a pontic in a fixed prosthesis, like a three-unit bridge, is maintained by regular oral hygiene, involving specific flossing tools and interdental brushes to prevent plaque buildup and maintain oral health.
Step-by-step explanation:
When the patient has a fixed prosthesis, such as a three-unit bridge, the area under the pontic is maintained by regular oral hygiene procedures, including special flossing techniques and the use of interdental brushes.
Maintaining the area under a pontic is crucial for overall oral health, as it prevents the accumulation of food particles and plaque, which can lead to gum disease or tooth decay.
Dental professionals will typically advise patients on the appropriate hygiene techniques specific to their dental appliances. Proper floss threaders or water flossers may also be recommended to ensure all surfaces around and beneath the pontic are adequately cleaned. Regular dental check-ups are mandatory to ensure the prosthesis is functioning well and the oral hygiene is effective.