Violation
What contribution did Wilhelm C. Roentgen make to dentistry?
The discovery of x-radiation as a diagnostic tool
Founding the first dental school
Founding the principle of extension for prevention
The discovery of inhalation anesthesia
What contribution did Wilhelm C. Roentgen make to dentistry?
The discovery of x-radiation as a diagnostic tool
Founding the first dental school
Founding the principle of extension for prevention
The discovery of inhalation anesthesia