This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Term parafunctional was first suggested by 
Select and explain. 
A. Karolyl, B. Weskit, C. Tischer, D. Drum
D: Drum
Answer: D: Drum 
Explanation: Bruxism synonym:
Neuralgial traumatic (Karolyl)
Karolyi effect (Weskit)
Occlusal habit neurosis (Tischer)
Parafunctional occlusal habit (Drum)
According to Ramjford and Ash, BRUXISM is triggered by: Emotional tensions, Occlusal maladjustment, Pain / discomfort.