Quality Control & Industry Standards Flashcards
7 cards from real CDC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Quality Control & Industry Standards flashcards as text
A dental laboratory's quality manual serves as:
Answer: The top-level document describing the scope and policies of the quality management system
The quality manual is the highest-level QMS document that describes the laboratory's quality policy, scope, and how the system is structured.
When evaluating porcelain bond strength to a metal alloy substrate during quality control testing, which test method is most commonly referenced?
Answer: Three-point or four-point flexural bond strength test per ISO 9693
ISO 9693 specifies a flexural bond strength test method for evaluating the adhesion of ceramic to metal in porcelain-fused-to-metal systems.
In a CAPA (Corrective and Preventive Action) system, what distinguishes a 'preventive action' from a 'corrective action'?
Answer: Corrective actions fix current problems; preventive actions address potential problems before they occur
Corrective actions address nonconformances that have already occurred, while preventive actions proactively eliminate causes of potential future nonconformances.
Why is traceability of material lot numbers critical in a dental laboratory quality system?
Answer: It enables identification and recall of all restorations produced using a specific defective material batch
Lot number traceability allows a laboratory to identify and contact affected patients and dentists if a material lot is found to be defective after restorations are delivered.
A dental ceramic furnace should be calibrated against a reference standard at which frequency as a minimum quality control practice?
Answer: Annually and after any major repair or relocation
Annual calibration and recalibration after repairs or moves ensures the furnace temperature profile remains accurate and firing results remain consistent.
Which characteristic of an all-ceramic restoration is most commonly assessed using a spectrophotometer during laboratory quality control?
Answer: Translucency and color coordinates (L*a*b*)
Spectrophotometers measure the color coordinates and translucency values of ceramic restorations to objectively verify shade accuracy before delivery.
A dental laboratory's 'approved supplier list' in a quality management system ensures that:
Answer: Only vetted suppliers meeting quality criteria are used for critical materials
An approved supplier list restricts purchasing to suppliers who have been evaluated and found to consistently meet the laboratory's quality and specification requirements.