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
During implant placement maximum torque should not be above? 
Select and explain. 
A. 100 N, B. 50 N, C. 60 N, D. 70 N
D: 70 N
Answer: D: 70 N 
Explanation: Once the final osteotomy diameter and depth is prepared, a bone tap is used in a low-torque hand (i.e., 30rpm, 70 N-cm) to form the threads within the bone for the implant