Surgical Assistance & Implant Placement Flashcards
7 cards from real CIT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Surgical Assistance & Implant Placement flashcards as text
Which suture technique provides the best approximation of a flap over an extraction socket before implant placement?
Answer: Figure-eight suture
A figure-eight suture effectively closes an extraction socket by crossing over the opening and providing tension-free closure across a wider gap.
Implant primary stability is primarily determined by:
Answer: Bone density and implant-bone contact at placement
Primary stability results from the mechanical engagement between the implant and the surrounding bone, directly related to bone density and fit.
When a surgeon uses an expander technique instead of sequential drilling, it is most appropriate in:
Answer: Soft cancellous bone (D4)
Bone expansion/condensing techniques are used in soft (D4) bone to compress trabecular bone laterally, increasing density and implant stability.
A cover screw is placed at the end of a two-stage implant surgery primarily to:
Answer: Protect the internal connection and allow submerged healing
The cover screw seals the implant's internal connection and allows the implant to heal submerged under the mucosa, away from oral contaminants.
The surgical assistant is responsible for maintaining the sterile field. If a sterile instrument falls below the level of the sterile drape, it should be:
Answer: Considered contaminated and replaced
Any sterile instrument that falls below the level of the sterile field or drape must be considered contaminated and cannot be returned to the sterile field.
Guided bone regeneration (GBR) membranes are used during implant surgery to:
Answer: Prevent epithelial and connective tissue ingrowth into the defect
GBR membranes create a secluded space that excludes fast-growing soft tissue cells, allowing slower-growing osteogenic cells to regenerate bone.
Implant placement in the posterior maxilla is most challenging due to:
Answer: Poor bone quality (D3/D4) and limited vertical bone height due to the sinus
The posterior maxilla typically has soft, poorly trabeculated bone and the maxillary sinus often limits available bone height, complicating standard implant placement.