**Core Concept**
The term "orthodontics" refers to the branch of dentistry dealing with the diagnosis, prevention, and treatment of dental and facial irregularities. This involves the use of appliances and techniques to correct malocclusions, improve oral function, and enhance facial aesthetics.

**Why the Correct Answer is Right**
The term "orthodontics" was coined by Edward H. Angle, an American dentist who is considered the father of modern orthodontics. Angle's contributions to the field include the development of the first classification system for malocclusions and the introduction of the edgewise appliance, which revolutionized orthodontic treatment. His work laid the foundation for contemporary orthodontic practice.

**Why Each Wrong Option is Incorrect**
**Option A:**
This option is incorrect because the term "orthodontics" was not coined by Andrew F. Miller, an American dentist who made significant contributions to the field of orthodontics, but not to the coining of the term.

**Option B:**
This option is incorrect because the term "orthodontics" was not coined by Charles Goodyear, an American inventor who developed the vulcanization process for rubber, and has no notable connection to the field of orthodontics.

**Option C:**
This option is incorrect because the term "orthodontics" was not coined by Paul F. Johnson, an American dentist who made significant contributions to the field of orthodontics, but not to the coining of the term.

**Clinical Pearl / High-Yield Fact**
Edward H. Angle's classification system for malocclusions is still widely used today, with four primary types: Class I, Class II, Class III, and Class IV. This system helps orthodontists diagnose and plan treatment for patients with various types of malocclusions.

**Correct Answer: C. Edward H. Angle**