**Core Concept**
The choice of pontic material and design is crucial in fixed partial dentures to ensure aesthetic and functional success. A pontic is a prosthetic tooth replacement that is attached to a dental bridge. The most suitable pontic design depends on various factors, including the location of the missing tooth, the surrounding soft tissues, and the patient's oral hygiene habits.

**Why the Correct Answer is Right**
A pontic is most suitable when it allows for easy cleaning and minimizes the risk of tissue irritation. A **screw-retained pontic** is the best choice in situations where easy removal and replacement of the pontic are necessary, such as in cases of dental implant placement or when the patient has a high risk of dental decay or periodontal disease. This design also allows for easy inspection and cleaning of the underlying tissue.

**Why Each Wrong Option is Incorrect**
* **Option A:** A **mortise and tenon pontic** is not suitable for most cases as it requires a specific anatomical shape of the edentulous area and may cause tissue irritation.
* **Option B:** A **saddle pontic** is not ideal for areas with minimal keratinized tissue, as it may cause tissue irritation and make cleaning difficult.
* **Option C:** A **Maryland bonded bridge** is not suitable for this scenario as it involves bonding the pontic to the adjacent teeth, which may not be feasible in all cases.

**Clinical Pearl / High-Yield Fact**
When designing a pontic, it's essential to consider the **"3 Cs"**: **Contact, Contour, and Color**. The pontic should be designed to match the contact points, contour, and color of the adjacent teeth to ensure a natural appearance.

**Correct Answer:** C.