s10-midterms-Advanced surgicall techniques Flashcards
(25 cards)
Name 3 vertical ridge augmentation techniques.
Onlay block grafts, sinus floor augmentation, alveolar distraction osteogenesis.
What are the two main horizontal augmentation methods?
Veneer block grafts and titanium mesh with particulate bone.
Which vertical technique uses gradual bone separation?
Alveolar distraction osteogenesis.
What is the key material used in GBR for horizontal augmentation?
Particulate bone graft + barrier membrane.
What is the most common complication of sinus lift?
Membrane perforation or sinusitis.
List 3 surgical complications of implant placement.
Hemorrhage, nerve damage, mandibular fracture.
What life-threatening complication can occur during mandibular implant placement?
Bleeding into sublingual/submandibular spaces (airway risk).
How can implant displacement into the maxillary sinus be managed?
Immediate retrieval via endoscopic or Caldwell-Luc approach.
What causes neurosensory disturbances in implant surgery?
Damage to inferior alveolar or mental nerve.
What is the most common biological complication?
Peri-implant mucositis (reversible inflammation).
What distinguishes peri-implantitis from mucositis?
Bone loss (+ inflammation) vs. soft-tissue-only inflammation.
Name 3 mechanical complications of implant prostheses.
Screw loosening, porcelain fracture, abutment fracture.
Why might an overdenture lose retention?
Wear of attachment clips or denture base warping.
What causes early implant failure (3 factors)?
Poor bone quality, infection, or lack of primary stability.
What primarily causes late implant failure?
Overload or peri-implantitis from poor maintenance.
What are Alberktsson’s 1986 success criteria?
No pain, mobility, radiolucency; <0.2mm annual bone loss after 1st year.
How does Smith & Zarb (1989) modify success criteria?
Adds patient satisfaction and functional loading as requirements.
What radiographic sign suggests implant failure?
Progressive circumferential bone loss >2mm.
What clinical symptom indicates failing implants?
Pain + mobility + suppuration.
Which nerve is at risk in posterior mandibular implants?
Inferior alveolar nerve.
How to prevent wound dehiscence post-grafting?
Tension-free closure and proper flap design.
What is the main risk of nasal floor augmentation?
Oroantral communication or nasal perforation.
When is titanium mesh preferred over blocks?
For large, irregular defects requiring contour flexibility.
What systemic conditions increase early failure risk?
Uncontrolled diabetes or smoking.
