Surgery How many Champy’s osteosynthesis lines exist behind and in the front end of mental foramen: A 2 ahead of and 1 behind the mental foramen. B 1 ahead of and 2 behind the mental foramen. C 2 ahead of and 2 behind the mental foramen. D 1 ahead of and 1 behind the mental foramen. 💡 Explanation How many Champy's osteosynthesis lines exist behind and in the front end of mental foramen: ✓ Correct Answer: A. 2 ahead of and 1 behind the mental foramen.