EFDA Study Guide 2026

The 212 clamp has an inverted bow design that allows it to engage tooth structure at or slightly below the gingival margin, making it useful for partially erupted or broken-down teeth.

While digital radiography uses sensors instead of film, the principles of infection control remain identical to traditional radiography. Digital sensors and their cables still come into contact with oral fluids, necessitating barrier protection and disinfection after each use. This ensures the prevention of cross-contamination and maintains a sterile environment, regardless of the imaging technology used.

Thorough preparation of all necessary materials and instruments before a dental procedure is essential for maintaining a smooth and efficient workflow. This proactive step allows the EFDA to anticipate the dentist's needs, reducing delays and interruptions during treatment. Ultimately, it enhances productivity, saves time, and contributes to a more focused and successful procedure.

Angle's Class II, Division 2 malocclusion is characterized by a Class II molar relationship where the maxillary central incisors are retroclined, or tipped back towards the palate. The lateral incisors can be either normally inclined or proclined. [1, 3, 5, 7]

A well-fabricated provisional crown must have a precise marginal fit. The margin should be smooth and adapt closely to the preparation's finish line without any gaps, ledges, or overhangs. This prevents plaque accumulation, gingival irritation, and leakage, which are crucial for maintaining periodontal health while the permanent crown is being made.

Recession is measured from the cementoenamel junction (CEJ) to the free gingival margin to quantify how far the gingiva has migrated apically.