DENTISTRY / ORAL & MAXILLOFACIAL P3

Question 1 Which symptom most strongly suggests acute dental infection?

Tooth discoloration

Facial swelling

Mild sensitivity to cold

Gingival recession

Question 2 Pain that worsens when biting is most commonly associated with:

Gingivitis

Periapical pathology

Aphthous ulcer

Attrition

Question 3 Which condition is characterized by pain relieved by cold stimuli?

Irreversible pulpitis

Reversible pulpitis

Periodontitis

TMJ disorder

Question 4 A tooth that does not respond to vitality testing is most likely to have:

Gingivitis

Hyperesthesia

Necrotic pulp

Attrition

Question 5 Which structure is first affected in periodontal disease?

Enamel

Pulp

Gingiva

Dentin

Question 6 Which sign indicates progression from gingivitis to periodontitis?

Gingival redness

Bleeding on probing

Loss of alveolar bone

Plaque accumulation

Question 7 Which dental condition is most likely associated with halitosis?

Reversible pulpitis

Periodontitis

Attrition

Leukoplakia

Question 8 Which oral lesion is usually self-limiting and recurrent?

Oral cancer

Leukoplakia

Aphthous ulcer

Fibroma

Question 9 A white oral lesion that cannot be scraped off should raise suspicion for:

Candidiasis

Leukoplakia

Aphthous ulcer

Herpes simplex

Question 10 Which clinical finding suggests TMJ dysfunction?

Tooth mobility

Jaw clicking during opening

Gingival bleeding

Tooth sensitivity

Question 11 Which factor most strongly contributes to dental caries development?

Saliva flow

Oral bacteria and fermentable carbohydrates

Tooth shape only

Occlusal forces

Question 12 Which patient is at highest risk for oral candidiasis?

Healthy young adult

Patient on long-term antibiotics

Athlete

Patient with gingivitis

Question 13 Which symptom differentiates irreversible from reversible pulpitis?

Pain on chewing

Short pain to cold

Spontaneous lingering pain

Gingival swelling

Question 14 Which dental condition is characterized by pus discharge and swelling?

Gingivitis

Dental abscess

Attrition

Leukoplakia

Question 15 Which radiographic finding suggests periapical pathology?

Thickened enamel

Radiolucency at root apex

Enlarged pulp chamber

Bone sclerosis only

Question 16 Which oral condition may progress to osteomyelitis if untreated?

Aphthous ulcer

Dental abscess

Attrition

TMJ disorder

Question 17 Which tooth wear pattern is associated with bruxism?

Abrasion

Erosion

Attrition

Caries

Question 18 Dental erosion is most commonly caused by:

Mechanical brushing

Tooth grinding

Acidic exposure

Bacterial plaque

Question 19 Which symptom suggests advanced periodontitis?

Gingival bleeding only

Tooth mobility

Plaque accumulation

Mild sensitivity

Question 20 Which nerve is most commonly involved in dental pain sensation?

Facial nerve (CN VII)

Trigeminal nerve (CN V)

Glossopharyngeal nerve (CN IX)

Vagus nerve (CN X)

Question 21 Referred pain to the ear in dental patients is most likely due to:

Shared vascular supply

Shared lymphatic drainage

Shared sensory innervation

Infection spread

Question 22 Which condition presents with limited mouth opening (trismus)?

Gingivitis

TMJ disorder

Leukoplakia

Dental caries

Question 23 Which oral condition is strongly associated with tobacco use?

Aphthous ulcer

Leukoplakia

Candidiasis

Gingivitis

Question 24 Which clinical sign suggests possible oral malignancy?

Painful ulcer healing in 1 week

Painless ulcer persisting >2 weeks

Gingival redness

Tooth sensitivity

Question 25 Which structure is primarily destroyed in periodontitis?

Enamel

Dentin

Alveolar bone

Pulp

Question 26 Which salivary gland dysfunction increases caries risk?

Hypersecretion

Hyposecretion (xerostomia)

Parotid enlargement

Increased viscosity

Question 27 Which dental emergency requires urgent intervention?

Attrition

Reversible pulpitis

Spreading odontogenic infection

Gingivitis

Question 28 Which condition is most likely associated with fever and malaise?

Aphthous ulcer

Leukoplakia

Dental abscess

Attrition

Question 29 Which term best describes infection originating from the tooth?

Odontogenic infection

Periodontal disease

Stomatitis

Cheilitis

Question 30 Why does irreversible pulpitis cause severe, spontaneous pain?

Reduced blood supply to pulp

Increased pressure in a rigid pulp chamber

Loss of enamel

Gingival inflammation

Đáp án chi tiết:

Explanation: Inflammation increases intrapulpal pressure within a non-expandable space, compressing nerves.

Question 31 Why can untreated dental abscess become life-threatening?

It causes tooth discoloration

Infection may spread to deep fascial spaces

It resolves spontaneously

It affects enamel only

Đáp án chi tiết:

Explanation: Odontogenic infections can spread to neck spaces or cause sepsis.

Question 32 Why does periodontitis often progress without pain initially?

No bacterial involvement

Slow destruction of supporting tissues without nerve exposure

Increased saliva flow

Reduced immune response

Đáp án chi tiết:

Explanation: Bone and ligament destruction may occur silently until advanced

Question 33 Why is leukoplakia monitored closely even when asymptomatic?

It is infectious

It always causes pain

It has malignant transformation potential

It resolves spontaneously

Đáp án chi tiết:

Explanation: Dysplastic changes may progress to oral cancer

Question 34 Why does TMJ dysfunction cause muscle fatigue and headache?

Excess saliva production

Overactivity of masticatory muscles

Bone resorption

Pulp inflammation

Đáp án chi tiết:

Explanation: Muscle overuse leads to pain and fatigue

Question 35 Why does xerostomia increase caries risk?

Reduced enamel hardness

Loss of salivary buffering and antimicrobial action

Increased tooth grinding

Increased pulp sensitivity

Đáp án chi tiết:

Explanation: Saliva neutralizes acids and inhibits bacterial growth

Question 36 Why is early management of bruxism important?

To prevent caries

To prevent progressive tooth wear and TMJ damage

To prevent gingivitis

To avoid pulp necrosis only

Đáp án chi tiết:

Explanation: Chronic grinding damages teeth and joints

Question 37 Why does chronic periodontitis affect systemic health?

It increases saliva production

Oral bacteria and inflammation can enter circulation

It affects enamel only

It reduces chewing efficiency

Đáp án chi tiết:

Explanation: Periodontal inflammation is linked to cardiovascular and metabolic diseases

Question 38 Why does periapical infection cause radiolucency on X-ray?

Increased enamel density

Bone resorption at root apex

Increased pulp size

Soft tissue swelling

Đáp án chi tiết:

Explanation: Inflammation activates osteoclasts, causing bone loss

Question 39 Why is biopsy recommended for suspicious oral lesions?

To relieve pain

To confirm histopathologic diagnosis

To treat infection

To reduce swelling

Đáp án chi tiết:

Explanation: Histology is required to confirm dysplasia or malignancy

Question 40 The main purpose of applying advanced dental terminology is to:

Memorize definitions

Replace clinical examination

Accurately assess, diagnose, and manage oral diseases

Avoid patient communication

Đáp án chi tiết:

Explanation: Precise terminology supports clinical reasoning and safe dental care

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