121 . Which one is true for Dental Implant?
  • A. Good in chronic periodontis cure
  • B. CBCT can give a better idea about bone quality
  • C. OPG is enough for bone height and width
  • D. Implant with natural tooth restoration is also good
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৪৮ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (Dental Science) (18-07-2025) | 2025
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122 . Which one is true for Hyperplastic gingivitis?
  • A. It is often associated with long term use of drugs like phenytoin
  • B. Scaling and antibiotic can easily cure the hyperplastic gum
  • C. Gingivectomy by electrocautery is always essential
  • D. Oral steroid is effective for this cause
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৪৮ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (Dental Science) (18-07-2025) | 2025
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123 . Which one is true for Jaw benign tumor?
  • A. Osteoma is common
  • B. Chronic osteomyelitis is often associated
  • C. Amelobastoma is more common in maxilla
  • D. Multilocular Ameloblastoma is more common in mandible
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৪৮ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (Dental Science) (18-07-2025) | 2025
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124 . Which organism can cause infective endocarditis after dental procedure?
  • A. E. coli
  • B. Viridans streptococci
  • C. Clostridium tetani
  • D. Bacilluspecies
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৪৮ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (Dental Science) (18-07-2025) | 2025
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125 . Which organization provides guidelines for preventing surgical site infections?
  • A. WHO
  • B. CDC
  • C. Both A and B
  • D. Neither A nor B
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126 . Which parameter best reflects tissue perfusion in a critically ill patient?
  • A. Systolic BP
  • B. Serum lactate level
  • C. Hemoglobin level
  • D. Urine color
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127 . Which patient should avoid NSAIDs before surgery?
  • A. A patient with hypertension
  • B. A patient with asthma
  • C. A patient with diabetes
  • D. A patient with peptic ulcers
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128 . Which position is best for providing mouth care in an unconscious patient?
  • A. Supine position
  • B. Prone position
  • C. Lateral position
  • D. Sitting upright
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129 . Which position is recommended for an unconscious patient during oral care?
  • A. Supine
  • B. Prone
  • C. Lateral
  • D. Fowler's
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130 . Which of the following is used to protect a patient during a seizure?
  • A. Raise side rails and remove sharp objects
  • B. Insert object in mouth
  • C. Give medication orally
  • D. Leave patient unattended
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131 . Which radiation is most penetrating?
  • A. Alpha
  • B. Beta
  • C. Gamma
  • D. UV
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132 . Which sterilization method is not recommended for spore containing instruments?
  • A. Autoclave
  • B. Hot air oven
  • C. Tyndalization
  • D. Ultraviolet radiatio
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৪৮ তম (বিশেষ) বিসিএস প্রিলিমিনারি টেস্ট (Dental Science) (18-07-2025) | 2025
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133 . Why is gamma radiation important?
  • A. Alpha is more penetrating
  • B. Beta is stronger
  • C. Gamma is most penetrating
  • D. UV is more effective
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134 . Why is proper ventilation important in the operating room?
  • A. To reduce airborne pathogens
  • B. To keep the surgical team comfortable
  • C. To prevent buildup of anesthetic gases
  • D. All of the above
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135 .  The nuclear radiators produced in a reactor which must be shielded are:
  • A. Electrons
  • B. α, β & γ rays
  • C. Neutron & γ rays
  • D. None
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