DBT-BET study guide
DBT-BET · Work through your exam, one topic at a time.
The DBT-BET is a board-style certification exam for dental laboratory technicians - the people who fabricate crowns, bridges, dentures, orthodontic appliances and implant restorations from a dentist's prescription. It is aimed at technicians preparing to demonstrate competence across the full laboratory workflow rather than a single specialty, and at employers or regulators who want an external benchmark of that competence. The DBT-BET study guide has 9 sections and about 3,125 words.
01Dental Anatomy and Morphology
The Dental Anatomy and Morphology domain checks whether you can name, orient and reproduce tooth form - numbering systems, crown and root contours, contact areas, embrasures and pulp anatomy - and apply it when carving or waxing a restoration for a bench practical. Three systems appear: Universal (1–32), FDI two-digit (quadrant + tooth, quadrants 1–4 running clockwise from the upper right) and Palmer.
370 words, about 2 min02Dental Materials Science
Material selection, handling variables and the physical consequences of getting them wrong - the domain where a 5 mL water error becomes a failed die. Type I impression plaster, II model plaster, III dental stone, IV low-expansion die stone, V high-expansion die stone.
346 words, about 2 min03Fixed Prosthodontics and Crown & Bridge
Preparation design, framework geometry and the fit and occlusion checks that decide whether a crown seats and stays seated. Chamfer for metal and metal-ceramic; shoulder or deep chamfer for all-ceramic; avoid feather edges.
325 words, about 2 min04Removable Prosthodontics and Dentures
Component design for partial dentures, the biomechanics of distal extension cases, and the processing sequence that determines fit and occlusion in complete dentures. Rests and rest seats.
334 words, about 2 min05Orthodontics and Orthodontic Appliances
Appliance fabrication - fixed and removable - plus the wire selection and force reasoning behind a treatment sequence. Start with small round superelastic NiTi (0.014, then 0.016), progress to rectangular NiTi (0.016 × 0.022), then stainless steel (0.019 × 0.025) for sliding mechanics and finishing.
351 words, about 2 min06Infection Control and Safety
How the laboratory breaks the chain of cross-infection between clinic and bench, plus the occupational hazards specific to a dental lab. Spaulding classification.
343 words, about 2 min07Laboratory Operations
The management systems that keep a laboratory legally documented, reproducible and traceable from case receipt to delivery. Written prescription.
347 words, about 2 min08Ethics and Regulations
The boundary between laboratory work and clinical practice, and the professional obligations that come with handling patient information and prescriptions. A dental technician fabricates to prescription.
359 words, about 2 min09Digital Dentistry and CAD/CAM Workflows
The scan-to-design-to-manufacture chain: data quality, design parameters, and the manufacturing tolerances that decide whether a digitally produced restoration fits. Intraoral scans are captured as STL or proprietary-exported file sets.
350 words, about 2 min