Revalida Odontología UChile Practice Questions - Examen General de Revalidación de Título de Cirujano Dentista (Universidad de Chile) Exam - Revalida Odontología UChile Practice Questions - Examen General de Revalidación de Título de Cirujano Dentista (Universidad de Chile) Exam

Question 1

According to the International Caries Detection and Assessment System (ICDAS-II), how is an active enamel carious lesion classified when a distinct visual opacity is observed on a wet occlusal surface without localized surface cavitation?

ICDAS Code 2 (distinct visual change in enamel) ICDAS Code 1 (first visual change in enamel visible only after prolonged air drying) ICDAS Code 3 (localized enamel breakdown with no visible dentin) ICDAS Code 4 (underlying dark shadow from dentin with intact enamel)

Correct Answer:

ICDAS Code 2 (distinct visual change in enamel)

Question 2

During the operative management of a deep carious lesion in a vital, asymptomatic permanent molar with radiographically confirmed deep dentin involvement (>75% dentin thickness), what is the contemporary evidence-based caries removal strategy recommended by the International Caries Consensus Collaboration (ICCC)?

Selective removal to soft dentin over the pulpal wall while establishing hard dentin margins peripherally Non-selective (complete) excavation to hard dentin across the entire cavity floor Stepwise excavation requiring mandatory re-entry at 6 months to remove residual infected dentin Immediate prophylactic pulpotomy followed by a full-coverage crown

Correct Answer:

Selective removal to soft dentin over the pulpal wall while establishing hard dentin margins peripherally

Question 3

A 22-year-old patient presents with acute throbbing pain in tooth 1.6 that lingers for 45 seconds after cold stimulus application and awakens the patient at night. Periapical radiography shows deep mesial caries approaching the pulp chamber with normal periodontal ligament width. What is the definitive pulpal and periapical diagnosis according to American Association of Endodontists (AAE) diagnostic terminology?

Symptomatic irreversible pulpitis with normal apical tissues Reversible pulpitis with symptomatic apical periodontitis Pulpal necrosis with acute apical abscess Asymptomatic irreversible pulpitis with condensing osteitis

Correct Answer:

Symptomatic irreversible pulpitis with normal apical tissues

Question 4

Which primary chemical irrigant is considered the gold standard in endodontic treatment due to its unique dual capability of tissue dissolution and broad-spectrum antimicrobial action against biofilm?

Sodium hypochlorite (NaOCl) in concentrations of 1% to 5.25% Ethylenediaminetetraacetic acid (EDTA) 17% Chlorhexidine gluconate (CHX) 2.0% Citric acid 10%

Correct Answer:

Sodium hypochlorite (NaOCl) in concentrations of 1% to 5.25%

Question 5

When bonding a direct resin composite restoration using a universal adhesive system in 'self-etch' mode, what is the primary rationale for selectively etching only the enamel margins with 37% phosphoric acid ('selective enamel etching')?

To maximize enamel micro-retention and marginal seal without causing excessive dentin demineralization or post-operative sensitivity To completely remove the hybrid layer in dentin and expose collagen fibrils for chemical chelation To activate matrix metalloproteinases (MMPs) in the underlying deep dentin To sterilize the cavosurface margin against Streptococcus mutans penetration

Correct Answer:

To maximize enamel micro-retention and marginal seal without causing excessive dentin demineralization or post-operative sensitivity

Question 1

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Prepare with the Revalida Odontología UChile Practice Questions - Examen General de Revalidación de Título de Cirujano Dentista (Universidad de Chile) Exam practice quiz. This question bank includes 100 questions covering primary, dental, clinical, dentin, and year-old. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Revalida Odontología UChile Practice Questions - Examen General de Revalidación de Título de Cirujano Dentista (Universidad de Chile) Exam

This practice set contains 100 questions from the matching question bank and focuses on primary, dental, clinical, dentin, and year-old. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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Revalida Odontología UChile Practice Questions - Examen General de Revalidación de Título de Cirujano Dentista (Universidad de Chile) Exam

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