ABE Endodontic Surgery Flashcards
6 cards from real ABE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ABE Endodontic Surgery flashcards as text
What is the most important factor predicting success of periradicular surgery?
Answer: Complete debridement and adequate sealing of the root canal system at the apex
Complete debridement and adequate sealing of the apical root canal system is the most critical determinant of surgical success.
What is the most common cause of failure following endodontic surgery?
Answer: Incomplete root-end preparation or inadequate seal
Incomplete root-end preparation or inadequate sealing allows persistent bacterial contamination, which is the leading cause of surgical failure.
What is the minimum recommended clinical follow-up period to assess the outcome of endodontic surgery?
Answer: 1 year
A minimum of 1 year of clinical and radiographic follow-up is recommended, as periradicular bone regeneration is a slow process.
Which staining agent is used to evaluate the resected root surface for fractures and isthmi during endodontic surgery?
Answer: Methylene blue dye
Methylene blue dye selectively stains the periodontal ligament remnants and microfracture lines, allowing visualization of the root surface under the operating microscope.
What is the reported success rate of endodontic microsurgery using modern techniques (MTA, ultrasonic preparation, operating microscope)?
Answer: 85–97%
Modern endodontic microsurgery achieves success rates of 85–97%, a significant improvement over older macro-surgical techniques.
Which condition is generally considered a contraindication for endodontic surgery?
Answer: Vertical root fracture with periodontitis
Vertical root fractures have a poor long-term prognosis regardless of treatment; surgery cannot restore structural integrity and extraction is typically indicated.