Restorative Dentistry questions for the DHA dental exam.
Restorative Dentistry covers caries diagnosis and management, cavity design, direct and indirect restorative materials and the restoration of heavily broken-down teeth. Candidates for the DHA dental exam should understand material properties and indications and select a conservative, evidence-based restoration for each clinical situation.
Free · no card needed · every answer explained
252
restorative dentistry practice questions
- 15%
- of the exam
- Oct 2026
- updated
Key facts to remember.
High-yield restorative dentistry points to revise before the exam.
- 1
Glass ionomer cements bond chemically to enamel and dentin and release fluoride, making them useful for high caries-risk patients and cervical lesions.
- 2
Polymerization shrinkage stress in composite is reduced by incremental placement, generally in layers no thicker than about 2 mm unless a bulk-fill material is used.
- 3
Etching enamel with phosphoric acid (typically 30-40%) creates a micromechanical surface for resin bonding.
- 4
Minimally invasive caries management favors selective removal of carious dentin near the pulp to avoid exposure, provided the restoration seals the cavity.
- 5
Amalgam does not bond to tooth structure; it relies on mechanical retention, and corrosion products gradually seal the margins.
Sample questions with answers.
10 practice questions for the DHA General Dentistry Healthcare Professional Licensing Exam - Dubai, UAE (Restorative Dentistry). Pick an answer to see if you're right, with a full explanation.
Question 1
Which RPD component provides indirect retention?
Question 2
Secondary caries MOST commonly occur due to?
Question 3
The MAIN purpose of cavity liners is to?
Question 4
Rubber dam use is CONTRAINDICATED in?
Question 5
A deep proximal caries is detected on bitewing radiograph but tooth is asymptomatic. What is the NEXT step?
Question 6
Which cement is BEST for ceramic restorations?
Question 7
A patient complains of persistent pain under a recently placed crown. Radiograph shows no periapical pathology. What is the MOST likely cause?
Question 8
Which curing light parameter MOST affects depth of cure?
Question 9
Which amalgam alloy reduces gamma-2 phase?
Question 10
Which restoration is MOST indicated for large posterior caries?
Other topics in this exam.
Restorative Dentistry in other exams
Questions, answered
Consider caries risk, moisture control, cavity size and location, esthetic demand and how reliably the patient can attend. Composite needs good isolation, glass ionomer tolerates some moisture and releases fluoride, and indirect restorations suit large cavities or teeth needing cuspal coverage. The best answer is usually the most conservative option that meets the clinical need.
Understand the smear layer, the hybrid layer and the differences between etch-and-rinse and self-etch systems. Etch-and-rinse systems remove the smear layer and need dentin kept slightly moist, whereas self-etch adhesives modify the smear layer and are less technique-sensitive on dentin. Selective enamel etching is often added with self-etch or universal adhesives to improve enamel bonding.
Ready to practise restorative dentistry?
All 252 restorative dentistry questions, with explanations and a readiness score for this topic.