Implant Dentistry Flashcards
7 cards from real ABP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Implant Dentistry flashcards as text
Which pharmacologic agent has the strongest evidence for negatively affecting osseointegration when taken long-term prior to implant placement?
Answer: Bisphosphonates
Bisphosphonates inhibit osteoclast activity and bone remodeling, significantly increasing the risk of osseointegration failure and medication-related osteonecrosis of the jaw.
The Albrektsson criteria for implant success include all of the following EXCEPT:
Answer: Implant mobility of less than 1 mm in any direction
The Albrektsson criteria require complete immobility; any detectable implant mobility (even <1 mm) indicates failure of osseointegration.
In a patient with uncontrolled type 2 diabetes (HbA1c > 10%), the primary concern regarding implant therapy is:
Answer: Impaired neutrophil function and wound healing reducing osseointegration rates
Poor glycemic control impairs neutrophil chemotaxis, phagocytosis, and collagen synthesis, compromising wound healing and osseointegration success.
The all-on-4 concept places two posterior implants at a specific angulation to avoid anatomical structures. That angulation is approximately:
Answer: 45°
In the All-on-4 protocol, the two distal implants are tilted approximately 45° to increase implant length and avoid the maxillary sinuses or mental foramina.
Crestal bone loss of more than 2 mm within the first year of implant loading is classified according to Misch criteria as:
Answer: Implant failure — Category III
Misch Category III implant failure is characterized by bone loss ≥ half the implant length or mobility, requiring removal before complete bone loss occurs.
Which suturing technique is preferred to achieve primary closure over a GBR membrane in a tension-free manner?
Answer: Horizontal mattress sutures combined with periosteal releasing incisions
Horizontal mattress sutures combined with periosteal releasing incisions reduce flap tension and achieve the passive primary closure needed to protect the membrane.
Subcrestal implant placement (placing the implant platform below the crestal bone level) is primarily indicated to:
Answer: Create additional supracrestal space for tissue thickness in thin biotypes
Subcrestal placement is used in thin tissue biotypes to allow adequate vertical soft tissue volume above the implant platform, reducing the risk of mucosal recession.