The study of teeth is called as
Odontology
The correct answer is option D.
Explanation of the correct option:
Explanation of the incorrect options:
Option A: Pedagogy is the study of how knowledge and skills are passed on in an educational setting, as well as the relationships that occur during the learning process.
Option B: Ornithology is a field of zoology concerned with the methodological study and subsequent knowledge of birds and everything related to them.
Option C: Ortheopy is the study of a language's pronunciation within a certain old tradition.
Final answer: The study of teeth is called as odontology.