**Question:** Shape of the anteriors in proximal view is

A. Circular
B. Oval
C. Elliptical
D. Rectangular

**Core Concept:** The shape of the teeth in the proximal view helps in identifying their specific types. Anteriors (incisors, canines, and premolars) have distinct shapes that differ from one another.

**Why the Correct Answer is Right:** In the proximal view, the shape of the anteriors is determined by their specific tooth type. The correct answer is:

**Correct Answer: D. Rectangular**

In the proximal view, rectangular teeth are found in the following teeth:

1. Mandibular central incisors: These teeth have a rectangular shape with a sharp cusp on the labial surface (lateral incisors are slightly rounded).
2. Maxillary central incisors: Although less visible in the proximal view, they also have a rectangular shape.
3. Maxillary lateral incisors: These teeth have a slightly rounded labial cusp, making them appear more oval-shaped in the proximal view.

**Why Each Wrong Option is Incorrect:**

A. Circular (Option A) - Central incisors and canines have a rectangular shape in the proximal view, not circular.
B. Oval (Option B) - Many anteriors have rectangular shapes, not oval.
C. Elliptical (Option C) - Similar to Option B, not all anteriors have elliptical shapes.

**Clinical Pearl:** In clinical practice, understanding the shapes of teeth in the proximal view aids in dental diagnosis and treatment planning. Familiarizing yourself with these shapes helps in recognizing tooth abnormalities, identifying missing teeth, and determining the type of prosthetic restoration needed.