Final answer:
A disadvantage of modified sanitary pontic includes increased risk of caries, difficulty in cleaning, and higher cost.
Step-by-step explanation:
A disadvantage of modified sanitary pontic is increased risk of caries. Caries, also known as tooth decay, can occur when bacteria in the mouth break down sugars and produce acid that can damage the teeth and surrounding structures. Because modified sanitary pontics are designed to replace missing teeth and close gaps, they can create areas that are difficult to clean properly, leading to a higher risk of caries.
Additionally, difficulty in cleaning is another disadvantage of modified sanitary pontic. The design of these pontics can create hard-to-reach areas where plaque and bacteria can accumulate, making it challenging for the individual to thoroughly clean the affected area.
Lastly, higher cost is another disadvantage. Modified sanitary pontics are customized dental restorations that require additional time, effort, and materials to fabricate, resulting in a higher cost compared to other tooth replacement options.