Explanation should include listing the major disturbances and explaining their causes, such as

• microdontia
• macrodontia
• anodontia
• cleft lip/palate
• tooth anomalies.

Process/Skill Questions:

• What do the prefixes micro and macro mean?
• What does the suffix genesis mean?
• What are supernumerary teeth?
• Which teeth are most likely to appear as supernumerary teeth? 
• What are the two types of cleft anomalies?