INBDE Oral Surgery Exam Questions and Answers Latest Updated 2024/2025 | 100% Correct

Should Questionable Teeth be extracted Before or After Radiation Therapy? - Answer BEFORE to prevent Osteoradionecrosis Contraindications for Extraction - Answer 1. Unstable Diabetes 2. End Stage Renal Disease 3. Unstable Angina 4. Leukemia and Lymphoma 5. Hemophilia or Platelet Disorder 6. Head and Neck Radiation (Requires HYPERBARIC OXYGEN Before and After) 7. IV Bisphosphonates 8. Periocoronitis What are the most likely teeth to be impacted? - Answer 1. MD 3rd Molars 2. MX 3rd Molars 3. MX Canines What are the most likely teeth to be congenitally missing? - Answer 1. 3rd Molars 2. MX Lateral Incisors 3. MD 2nd Premolars Soft Tissue Impaction - Answer 1. HoC is ABOVE bone level 2. Gingival Tissue may cover partial or all of tooth 3. EASIEST Partial Bony Impaction - Answer HoC is BELOW bone level Complete Bony Impaction - Answer Tooth is COMPLETELY within bone Winter's Classification - Answer 1. ONLY applies to 3rd Molars 2. Long Axis of 3rd Molar in relation to 2nd Molar What is the EASIEST Impacted MD 3rd molar to remove? - Answer Mesioangular What is the HARDEST Impacted MD 3rd molar to remove? - Answer Distoangular Pell and Gregory Classification - Answer -ONLY Applies to MD 3rd Molars 1. Class A: Same Plane 2. Class B: Halfway down Plane 3. Class C: Below Cervical Plane of MD 2nd Molar (MOST Difficult) 4. Class I: In front of ramus 5. Class II: Crown is halfway inside ramus 6. Class III: Entire tooth is inside ramus (MOST Difficult) Subperiosteal Abscess - Answer 1. Possible when MUCOPERIOSTEAL FLAP has been elevated 2. Must IRRIGATE THOROUGHLY to remove Tooth Particles and Bone Spicules Oro-Antral Communication - Answer 1. COMMON in MX 1st Molars INBDE Oral Surgery Exam Questions and Answers Latest Updated 2024/2025 | 100% Correct 2. Can be prevented with good pre-op radiograph and MINIMAL Apical Pressure What to do if Oro-Antral Communication is less than 2mm? - Answer Monitor What to do if Oro-Antral Communication is 2-6mm? - Answer 1. 4As (Antibiotics, Antihistamines, Analgesics and Afrin Nasal Spray) 2. Figure-Eight Suture. What to do if Oro-Antral Communication is greater than 6mm? - Answer Surgical Flap Surgery Alveolar Osteitis - Answer 1. "Dry Socket" 2. Blood Clot falls out WITHIN 3 DAYS after surgery BEFORE wound heals 3. Does NOT require Antibiotics 4. Requires Irrigation and Palliative Control Nerve Injury - Answer 1. MOST COMMON with MD 3rd Molars 2. Txt is Medrol Dosepak (Methyprednisolone) for Inflammation 3. If lasting for MORE THAN 4 Weeks, should have Microneurosurgical Eval Where are MX 1st/2nd Molars most likely to displace? - Answer Sinus Where are MX 3rd Molars most likely to displace? - Answer Infratemporal Fossa Where are MD 3rd Molars most likely to displace? - Answer Submandibular Space #9 Molt Periosteal Elevator - Answer Larger than Woodson Periosteal Straight Elevator (#301) - Answer 1. MOST COMMON 2. LEVER 3. Blade has CONCAVE Surface that should be pointed towards EXTRACTION Tooth Triangular Elevator (Cryer) - Answer 1. 2nd Most Common 2. WHEEL and AXEL 3. Used to remove BROKEN ROOTS Pick Elevator - Answer 1. Used to remove BROKEN or RETAINED Roots 2. WEDGE 3. CRANE Pick is HEAVY Version 4. ROOT TIP Pick is DELICATE Version #150 Universal Forceps - Answer 1. Upper 2. A = Premolars 3. S = Primary #151 Universal Forceps - Answer 1. Lower 2. A = Premolars 3. S = Primary #23 Lower Cowhorn Forceps - Answer 1. MD Molars 2. 2 Sharp Beaks 3. Used to engage BIFURCATION #88 Upper Cowhorn Forceps - Answer 1. MX Molars 2. 2 Beaks engage Palatal Root 3. 1 Beak engages Buccal Bifurcation #74 Ash Forceps - Answer Used for MD Premolars #15 Blade - Answer MOST COMMON for Intraoral Incisions #11 Blade - Answer For Stab Incisions #10 Blade - Answer Large Skin Incisions #12 Blade - Answer 1. Mucogingival Surgery 2. Curved Blade EASES access of sulcus Rongeurs - Answer Remove INTERRADICULAR Bone in SMALL "Bites" Osteotome - Answer 1. Bone Chisel 2. The flat end is tapped using a mallet 3. Monobevel: Used to remove Tori 4. Bibevel: Used to section Tooth Bone File - Answer Must use PULL STROKES to SMOOTHEN bone Hemostat - Answer 1. Designed to CLAMP BVs 2. Can also be used during Incision and Drainage to open Abscess 3. Beaks are STRAIGHT-HATCHED 4. Beaks are LONGER and THINNER Needle Holder - Answer 1. Beaks are CROSS-HATCHED 2. Beaks are SHORTER and THICKER What is the primary purpose of sutures? - Answer IMMOBILIZE Flap In which direction should sutures be moved through? - Answer From MOVEABLE Tissues to IMMOVEABLE Tissues What is the MOST COMMON suture technique? - Answer Simple Interrupted Interrupted Suture Techniques - Answer 1. Simple 2. Criss-Cross (Used to HOLD whatever is placed inside Socket) Mattress Technique - Answer 1. RESISTS Muscle Pull 2. EVERTS Wound Edges to pull Epithelium AWAY from Underlying Structures 3. Allows Epithelium to CLOSELY Adapt to Underlying Bone Graft or Membrane 4. Used during Implant Why should silk sutures not be used? - Answer Has WICKING Property that allows bacteria to INVADE the threads via CAPILLARY ACTION Purchase Point - Answer Space BETWEEN Tooth and Alveolar Bone that can be used to ANCHOR Elevator and provide Fulcrum Outward Forcep Movement - Answer Initial Movement for PERMANENT Teeth Inward Forcep Movement - Answer Initial Movement for PRIMARY Teeth Rotary Forcep Movement - Answer Initial Movement for CONICAL Roots Apical Forcep Movement - Answer 1. Applied for EVERY Tooth 2. Exercise CAUTION with MX Molars After Extraction - Answer 1. Apply force against bone walls with fingers to REVERSE Expansion and AVOID Undercuts 2. Curette 3. Smoothen Bone 4. Irrigate Envelope Flap - Answer 1. Mucoperiosteal Flap 2. NO Vertical Releases 3-Cornered Flap - Answer 1. Mucoperiosteal Flap 2. ONE Vertical Release Trapezoidal Flap - Answer 1. Mucoperiosteal Flap 2. TWO Vertical Releases Semilunar Flap - Answer 1. BELOW Mucogingival Junction 2. For APICOECTOMY Surgeries 3. ONLY on the Labial Tissue since Palatal Tissue is ATTACHED Double Y Flap - Answer 1. Incision down MIDLINE 2. "Y"-Shaped Vertical Releases on either end 3. Done for PALATAL TORI REMOVAL Surgery What determines the Flap used? - Answer Amount of Attached Gingiva in the Area What can you use surgical drill for? - Answer 1. Remove BUCCAL Bone 2. Remove INTERRADICULAR Bone 3. Section Tooth Removal of Root Tip - Answer 1. Gouge into space between Root Tip and Bone to elevate it 2. Remove Buccal/Facial Bone and elevate 3. Make Bone Window at Apex and push it out Is Old Age a Contraindication for Implants? - Answer NO