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100+ Free Revalida Odontología UChile Practice Questions

Prepare for the Examen General de Revalidación de Título de Cirujano Dentista (Universidad de Chile) exam with instant access — no signup required.

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2026 Statistics

Key Facts: Revalida Odontología UChile Exam

15 UTM

Cap for the whole set of exams, not per attempt

D.E. N° 384 de 2026 MINEDUC, as restated by the Facultad de Odontología UChile

Aprobado / Reprobado

Results carry no mark or grade

Informativo para nuevos postulantes, Facultad de Odontología UChile (12 August 2026)

70%

Curricular comparability threshold to continue

Informativo para nuevos postulantes, Facultad de Odontología UChile (12 August 2026)

2 Attempts

Maximum per examination, counted separately

Informativo para nuevos postulantes, Facultad de Odontología UChile (12 August 2026)

2 Years

Deadline to pass all requirements

Informativo para nuevos postulantes, Facultad de Odontología UChile (12 August 2026)

3 Examinations

Teórico, Preclínico and Clínico

Informativo para nuevos postulantes, Facultad de Odontología UChile (12 August 2026)

9,720 hours

UChile dental plan de estudios (360 SCT x 27 h)

Informativo para nuevos postulantes, Facultad de Odontología UChile (12 August 2026)

D.S. 174 / 2024

Governing MINEDUC Decree

Diario Oficial de la República de Chile (in force August 2026)

Universidad de Chile dental revalidation requires at least 70% comparability with the Cirujano/a Dentista plan de estudios (360 SCT / 9,720 hours), then three examinations — teórico, preclínico and clínico — each allowing a maximum of two attempts and reported only as APROBADO or REPROBADO with no numerical grade. Fees are capped at 2 + 3 + 15 UTM, where the 15 UTM covers the whole set of examinations rather than each attempt. All requirements must be passed within two years, and failing them bars a new application at the Universidad de Chile.

Sample Revalida Odontología UChile Practice Questions

Try these sample questions to test your Revalida Odontología UChile exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According 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?
A.ICDAS Code 2 (distinct visual change in enamel)
B.ICDAS Code 1 (first visual change in enamel visible only after prolonged air drying)
C.ICDAS Code 3 (localized enamel breakdown with no visible dentin)
D.ICDAS Code 4 (underlying dark shadow from dentin with intact enamel)
Explanation: Under ICDAS criteria, Code 2 represents a distinct visual change (white or brown opacity) visible on both wet and dry enamel surfaces. Code 1 is visible only after thorough air drying (>=5 seconds). Code 3 exhibits localized microcavitation of enamel without exposed dentin, and Code 4 exhibits an underlying dark dentin shadow.
2During 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)?
A.Selective removal to soft dentin over the pulpal wall while establishing hard dentin margins peripherally
B.Non-selective (complete) excavation to hard dentin across the entire cavity floor
C.Stepwise excavation requiring mandatory re-entry at 6 months to remove residual infected dentin
D.Immediate prophylactic pulpotomy followed by a full-coverage crown
Explanation: The International Caries Consensus Collaboration (ICCC) and MINSAL guidelines recommend selective removal to soft dentin (leaving soft, carious dentin directly over the pulp to prevent exposure) while excavating peripheral cavity walls to hard dentin for an airtight adhesive seal. This preserves pulp vitality and avoids the risks of re-entry in stepwise excavation.
3A 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?
A.Symptomatic irreversible pulpitis with normal apical tissues
B.Reversible pulpitis with symptomatic apical periodontitis
C.Pulpal necrosis with acute apical abscess
D.Asymptomatic irreversible pulpitis with condensing osteitis
Explanation: Spontaneous, lingering pain (>30 seconds) provoked by thermal stimuli and nocturnal pain are classic pathognomonic signs of symptomatic irreversible pulpitis. The absence of periapical radiolucency or tenderness to percussion indicates normal apical tissues.
4Which 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?
A.Sodium hypochlorite (NaOCl) in concentrations of 1% to 5.25%
B.Ethylenediaminetetraacetic acid (EDTA) 17%
C.Chlorhexidine gluconate (CHX) 2.0%
D.Citric acid 10%
Explanation: Sodium hypochlorite (NaOCl) is the only endodontic irrigant capable of dissolving vital and necrotic organic pulp tissue while exerting potent antimicrobial action against root canal biofilms. EDTA and citric acid are chelating agents for inorganic smear layer removal, and chlorhexidine lacks tissue-dissolving ability.
5When 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')?
A.To maximize enamel micro-retention and marginal seal without causing excessive dentin demineralization or post-operative sensitivity
B.To completely remove the hybrid layer in dentin and expose collagen fibrils for chemical chelation
C.To activate matrix metalloproteinases (MMPs) in the underlying deep dentin
D.To sterilize the cavosurface margin against Streptococcus mutans penetration
Explanation: Selective enamel etching combines the superior enamel bond strength and marginal seal of phosphoric acid etch with the reduced technique sensitivity, low post-operative sensitivity, and preservation of hydroxyapatite around collagen in self-etch dentin bonding.
6A 28-year-old female presents with a pin-point mechanical pulp exposure (<0.5 mm) in sound, non-carious axial dentin during cavity preparation of tooth 4.5 under rubber dam isolation. The pulp tissue is bright red and bleeding stops spontaneously within 2 minutes under saline irrigation. Which biomaterial is the evidence-based first choice for direct pulp capping to promote dentin bridge formation?
A.Mineral trioxide aggregate (MTA) or bioceramic calcium silicate cement
B.Zinc oxide-eugenol cement (IRM)
C.Polycarboxylate cement
D.Unfilled composite bonding resin
Explanation: Calcium silicate-based bioceramics (such as Mineral Trioxide Aggregate - MTA and Biodentine) are the gold standard for direct pulp capping. They exhibit excellent biocompatibility, stimulate osteodentin/dentin bridge formation via calcium ion release and high alkalinity, and provide superior hermetic sealing compared to traditional calcium hydroxide.
7What is the primary role of 17% EDTA when alternated with sodium hypochlorite during root canal biomechanical preparation?
A.Chelation of calcium ions to remove the inorganic component of the endodontic smear layer
B.Dissolution of the pulpal remnant's organic collagen matrix
C.Coagulation of bacterial cell wall proteins in Enterococcus faecalis
D.Neutralization of hypochlorite toxicity in the periapical tissues
Explanation: 17% EDTA is a chelating agent that reacts with calcium ions in dentin to dissolve the inorganic smear layer created during instrumentation, opening dentinal tubules to allow deeper penetrance of disinfectants and sealers.
8In restorative dentistry, the 'C-Factor' (configuration factor) is defined as the ratio of bonded to unbonded surfaces. Which cavity preparation classification exhibits the highest C-factor and consequently the greatest risk of polymerization shrinkage stress at the adhesive interface?
A.Class I occlusal cavity (5 bonded walls / 1 unbonded wall = C-factor of 5)
B.Class II MOD cavity (3 bonded walls / 3 unbonded walls = C-factor of 1)
C.Class IV incisal edge fracture (2 bonded walls / 4 unbonded walls = C-factor of 0.5)
D.Class V buccal cervical cavity (4 bonded walls / 1 unbonded wall = C-factor of 4)
Explanation: A Class I occlusal cavity has 5 bonded walls (pulpal, mesial, distal, buccal, lingual) and only 1 unbonded free surface (occlusal), resulting in a C-factor of 5/1 = 5. High C-factor cavities restrict resin relaxation during polymerization, generating maximum tensile stress at the bonding interface.
9What is the primary function of camphorquinone in light-cured dental composite resins?
A.Photoinitiator that absorbs blue light at ~468 nm to generate free radicals for vinyl polymerization
B.Coupling agent that bonds inorganic filler particles to the organic dimethacrylate matrix
C.Viscosity modifier and cross-linking diluent monomer
D.Radiopacifying oxide added to differentiate composite from recurrent caries on radiographs
Explanation: Camphorquinone is the most common Type II photoinitiator in resin composites. It possesses an absorption peak in the visible blue light spectrum (~468 nm) and, in combination with a tertiary amine co-initiator, initiates free-radical polymerization.
10Which microorganism is considered the primary early colonizer and principal etiological pathogen in the initiation of enamel dental caries due to its rapid acidogenesis and aciduricity?
A.Streptococcus mutans
B.Porphyromonas gingivalis
C.Aggregatibacter actinomycetemcomitans
D.Enterococcus faecalis
Explanation: Streptococcus mutans produces glucosyltransferases that synthesize extracellular glucans from sucrose, mediating tenacious biofilm adhesion, rapid lactic acid fermentation (acidogenesis), and survival in low pH environments (aciduricity).

About the Revalida Odontología UChile Exam

Revalidation of a foreign dental degree as Cirujano/a Dentista is run by the Universidad de Chile: Prorrectoría receives and registers the application, and the Facultad de Odontología carries out the curricular study and sets the academic requirements. Candidates who reach at least 70% comparability with the Universidad de Chile dental curriculum must pass an Examen Teórico, an Examen Preclínico and an Examen Clínico, each reported only as approved or failed. This route applies to graduates from countries without a recognition treaty with Chile; graduates covered by the Convención de México follow the separate reconocimiento route via the Ministerio de Relaciones Exteriores. Language and format disclosure: the official examinations are sat in Spanish, in person, in Santiago, and include preclinical and clinical performance on patients. This practice bank is an English-language multiple-choice study adaptation of the underlying dental knowledge and Chilean oral-health regulation. It is not an official translation, it does not reproduce the official format, and MCQs cannot certify the preclinical or clinical skill the faculty assesses directly.

Assessment

Applications are filed with Prorrectoría, which checks admissibility and refers the file to the Facultad de Odontología. The faculty has 45 days to compare the candidate's training against the Cirujano/a Dentista plan de estudios (360 SCT / 9,720 hours). Below 70% comparability the faculty proposes denial. At 70% or above the candidate proceeds to mandatory requirements: an Examen Teórico, an Examen Preclínico and an Examen Clínico, each with a maximum of two attempts counted separately. Final approval or denial rests with the resolving authority.

Time Limit

not-published

Passing Score

APROBADO / REPROBADO only — the faculty states results carry no mark or grade

Exam Fee

Up to 20 UTM (2 UTM intake + 3 UTM academic evaluation + 15 UTM for the whole set of examinations); further curricular activities may add up to 20 UTM (Universidad de Chile — Facultad de Odontología, with intake and coordination by Prorrectoría (Oficina de Revalidación), under D.F.L. N° 153 of 1981 and, for applications filed from 17 August 2026, D.S. N° 174/2024 and D.E. N° 384/2026 MINEDUC)

Revalida Odontología UChile Exam Content Outline

Not published

Cariology, Restorative Dentistry & Endodontics

Caries risk assessment, ICDAS visual and radiographic criteria, selective caries removal protocols, dental adhesion and composite restorations, direct pulp capping, partial and total pulpotomy, diagnostic pulp tests, working length determination, sodium hypochlorite/EDTA irrigation, root canal obturation techniques, and endodontic emergencies.

Not published

Periodontology, Oral Medicine & Oral Pathology

Gingival and periodontal anatomy, plaque-induced gingivitis, 2017 AAP/EFP classification (Periodontitis Stage I–IV, Grade A–C), necrotizing periodontal diseases, scaling and root planing protocols, periodontal maintenance, benign oral lesions, leukoplakia, oral squamous cell carcinoma screening, salivary pathology, and oral manifestations of systemic disorders.

Not published

Oral & Maxillofacial Surgery, Anesthesia & Radiology

Local anesthetic pharmacology (lidocaine, articaine, mepivacaine, vasoconstrictors, maximum doses), local anesthetic complications and systemic toxicity (LAST), inferior alveolar and maxillary nerve blocks, surgical exodontia and flap design, odontogenic infections and cellulitis, antibiotic stewardship, intraoral and panoramic radiographic anatomy, CBCT indications, and management of medical emergencies in the dental office.

Not published

Pediatric Dentistry, Prosthodontics & Dental Public Health

Early childhood caries management, pulp therapy in primary dentition (pulpotomy vs. pulpectomy), dental traumatology in deciduous and permanent teeth (Andreasen guidelines), fixed partial denture preparation and margin design, removable partial denture clasp design and biomechanics, complete dentures, Chilean GES/AUGE dental health guarantees (salud oral integral de la embarazada, niño de 6 años, adulto de 60 años, urgencias odontológicas ambulatorias), and MINSAL infection control protocols (IAAS).

How to Pass the Revalida Odontología UChile Exam

What You Need to Know

  • Passing score: APROBADO / REPROBADO only — the faculty states results carry no mark or grade
  • Assessment: Applications are filed with Prorrectoría, which checks admissibility and refers the file to the Facultad de Odontología. The faculty has 45 days to compare the candidate's training against the Cirujano/a Dentista plan de estudios (360 SCT / 9,720 hours). Below 70% comparability the faculty proposes denial. At 70% or above the candidate proceeds to mandatory requirements: an Examen Teórico, an Examen Preclínico and an Examen Clínico, each with a maximum of two attempts counted separately. Final approval or denial rests with the resolving authority.
  • Time limit: not-published
  • Exam fee: Up to 20 UTM (2 UTM intake + 3 UTM academic evaluation + 15 UTM for the whole set of examinations); further curricular activities may add up to 20 UTM

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Revalida Odontología UChile Study Tips from Top Performers

1Master the 2017 AAP/EFP World Workshop classification for periodontal and peri-implant diseases, including precise staging (I–IV) and grading (A–C) criteria.
2Review selective caries removal protocols (leaving soft/leathery dentin near pulp) and contemporary adhesive bonding systems according to MINSAL guidelines.
3Understand maximum recommended doses for dental local anesthetics (e.g., lidocaine 2% with epinephrine 1:100,000 max 4.4 mg/kg up to 300 mg) and the management of local anesthetic systemic toxicity (LAST).
4Memorize the International Association of Dental Traumatology (IADT) guidelines for avulsion, intrusion, lateral luxation, and crown fractures in both primary and permanent dentitions.
5Thoroughly review Chilean GES/AUGE dental guarantees: Salud Oral Integral para Niños de 6 Años, Salud Oral Integral de la Embarazada, Salud Oral Integral para Adultos de 60 Años, and Urgencias Odontológicas Ambulatorias.
6Practice clinical diagnosis and treatment planning scenarios covering multidisciplinary restorative, endodontic, and prosthodontic cases.

Frequently Asked Questions

What is the Universidad de Chile Dental Revalidation Exam?

It is the official academic examination administered by the Facultad de Odontología of the Universidad de Chile under D.F.L. N° 153 of 1981 and Decreto Supremo N° 174 of 2024 to revalidate foreign dental degrees and grant the Chilean professional title of Cirujano Dentista.

Who must take this revalidation examination?

Foreign-trained dental professionals who earned their degree outside Chile and wish to practice dentistry legally in Chile, except those eligible for the direct treaty recognition route (reconocimiento) via the Ministerio de Relaciones Exteriores (Minrel) under multilateral agreements such as the Convención de México.

What are the entry prerequisites for the examination?

The application must be filed with Prorrectoría — sending papers straight to the faculty does not start the procedure. Required documents are the apostilled or legalised degree, an official transcript, the official plan de estudios with duration, credits or hours, content and modality, an identity document, and a professional practising authorisation where applicable. The Facultad de Odontología then has 45 days to compare that training against the Cirujano/a Dentista plan de estudios; at least 70% comparability is needed to continue, which permits the candidate to sit the required examinations but is not itself an approval.

What is the examination structure and how are results reported?

There are three examinations — Examen Teórico, Examen Preclínico and Examen Clínico. Each may be attempted at most twice, and the attempts are counted separately for each examination. Results are expressed only as APROBADO or REPROBADO, with no mark or numerical grade. All requirements must be passed within two years and cannot be scheduled across more than three academic semesters. Exhausting the attempts without passing ends the process and bars a new revalidation or recognition application at the Universidad de Chile.

What are the fees for dental degree revalidation in Chile?

For applications filed from 17 August 2026 the maximums fixed by D.E. N° 384/2026 apply: 2 UTM for intake and admissibility, 3 UTM for the academic evaluation, and 15 UTM for the complete set of examinations or final requirements. The 15 UTM covers the set — it is not charged per attempt. Any additional curricular activities are capped at 20 UTM in total, and the Ministerio de Relaciones Exteriores step, where applicable, is capped at 18 UTM. UTM is valued at the month of payment.

Is this practice question bank in Spanish or English?

This bank is an English-language multiple-choice study adaptation designed to help candidates prepare for the clinical reasoning and theoretical knowledge tested in the exam. The official Chilean examination is conducted entirely in Spanish and includes practical treatment of real patients.