Which of the Following Features Can Always Be Noted on the Primary

question 24

Multiple Choice

Which of the following features can always be noted on the primary maxillary central incisors?

• A) Three mamelons on labial surface
• B) Developmental depressions and imbrication lines
• C) Lingual pits with deeper lingual fossa
• D) Proximal surfaces are similar

---

Definitions:

Formula Mass

The sum of the atomic masses of all atoms in a formula unit of a compound, usually measured in atomic mass units (amu).

Hybridization

The process of mixing atomic orbitals into new hybrid orbitals suitable for the pairing of electrons to form chemical bonds in molecular compounds.

Acetaldehyde

A volatile, colorless, and flammable liquid with a pungent smell, used as a precursor to various chemicals and in the synthesis of drugs.

OCH Bond Angle

The angle formed between an oxygen, carbon, and hydrogen atom within a molecule, important for determining molecular geometry.