system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
In lag screw technique, what is the function of counter-sink?
assistant
The correct answer is  To flush the obliquely place screw head with the rest of the proximal cortex, countersink is made that acts as a receptacle for engaging the end of screw head.