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
Which of the following full thickness flap is contraindicated for endodontic surgeries:
assistant
The correct answer is  As collagen fibers and blood vessels run parallel to the root, In trapezoidal flap more number if collagen fibres and blood vessels are cut in turn it delays healing.