Module 2_Mucoperiosteal Flap Flashcards
What makes two armed mucoperiosteal flap more difficult in animals than humans?
- In animals muscle attachment rather than fibrous
- More neurovascular bundles (humans have one mental foramen whereas animals may have multiple)
What are all the steps to cutting a two armed mucoperiosteal flap?
- Cut adjacent to the teeth between the teeth and periosteum (your goal is to remove the periosteum from the bone, so you must ensure the tip of the blade is within the periodontal membrane
- Cut along the side of the teeth until you reach the end of the muscle attachment
- To cut vertical part of flap, starting from the bottom cut upwards until you meet the horizontal portion (ensure they meet at a sharp angle
- Use periosteal elevator (curve side outwards towards soft tissue, spoon side inwards towards bone) to separate the flap, start from bottom up as attachment is weakest at the bottom
What would happen if you cut supraperiosteally? How can you tell if you have?
Lots of bleeding, poor vision, slower and poorer healing
If periosteum looks rough or is bleeding you are supraperiosteal
What would happen if you cut your vertical incision through the muscle attachment?
-Bleed and hard to stitch up
What would happen to any remnants of soft tissue left on the teeth after a two armed mucoperiosteal flap has been cut?
It would die so remove any remnants
What is the normal appearnce of the periosteum?
-Smooth and shiny
Where should sutures be placed after completing a two armed mucoperiosteal flap?
- Start at the corner at the bisection of the angle with a sliding knot
- Go from the free tissue (flap tissue) to attached tissue
- Place next one with surgeon’s knot or sliding knot in front of first tooth (first tooth behind the edentulous area)
- Line up the position of the interdental papillae and place sutures through the interdental papillae (note when bringing suture back to tie knot pass it underneath contact rather than going over top to make sure patient doesn’t chew it off)
