CDT #1 UPDATED ACTUAL PRACTICE
QUESTIONS WITH DETAILED EXPLANATIONS
2026
◉ D0140.
Answer: Limited oral evaluation: problem-focused
◉ D0150.
Answer: Comprehensive oral evaluation, new or established patient
◉ D0220.
Answer: Intraoral periapical - first radiographic image
◉ D0230.
Answer: Intraoral periapical - each additional radiographic image
◉ D0272.
Answer: Bitewings - two radiographic images
◉ D0273.
Answer: Bitewings - three radiographic images
,◉ D0274.
Answer: Bitewings - four radiographic images
◉ D0330.
Answer: Panoramic radiographic image
◉ D1208.
Answer: Topical application of fluoride - excluding varnish
◉ D1351.
Answer: Sealant - per tooth
◉ D1352.
Answer: Preventive resin restoration in a moderate to high caries
risk patient; permanent tooth
◉ D2140.
Answer: Amalgam - 1 surface, permanent or primary
◉ D2150.
Answer: Amalgam - 2 surfaces, permanent or primary
, ◉ D2160.
Answer: Amalgam - 3 surfaces, permanent or primary
◉ D2161.
Answer: Amalgam - 4 or more surfaces, permanent or primary
◉ D2330.
Answer: Resin-based composite, 1 surface, anterior
◉ D2331.
Answer: Resin-based composite, 2 surfaces, anterior
◉ D2391.
Answer: Resin-based composite, 1 surface, posterior, permanent or
primary
◉ D2392.
Answer: Resin-based composite, 2 surfaces, posterior, permanent, or
primary
◉ D2740.
QUESTIONS WITH DETAILED EXPLANATIONS
2026
◉ D0140.
Answer: Limited oral evaluation: problem-focused
◉ D0150.
Answer: Comprehensive oral evaluation, new or established patient
◉ D0220.
Answer: Intraoral periapical - first radiographic image
◉ D0230.
Answer: Intraoral periapical - each additional radiographic image
◉ D0272.
Answer: Bitewings - two radiographic images
◉ D0273.
Answer: Bitewings - three radiographic images
,◉ D0274.
Answer: Bitewings - four radiographic images
◉ D0330.
Answer: Panoramic radiographic image
◉ D1208.
Answer: Topical application of fluoride - excluding varnish
◉ D1351.
Answer: Sealant - per tooth
◉ D1352.
Answer: Preventive resin restoration in a moderate to high caries
risk patient; permanent tooth
◉ D2140.
Answer: Amalgam - 1 surface, permanent or primary
◉ D2150.
Answer: Amalgam - 2 surfaces, permanent or primary
, ◉ D2160.
Answer: Amalgam - 3 surfaces, permanent or primary
◉ D2161.
Answer: Amalgam - 4 or more surfaces, permanent or primary
◉ D2330.
Answer: Resin-based composite, 1 surface, anterior
◉ D2331.
Answer: Resin-based composite, 2 surfaces, anterior
◉ D2391.
Answer: Resin-based composite, 1 surface, posterior, permanent or
primary
◉ D2392.
Answer: Resin-based composite, 2 surfaces, posterior, permanent, or
primary
◉ D2740.