চাকরি প্রস্তুতি -JobScholar

প্রশ্ন 51 সঠিক উত্তর: B

Features of plasma leakage in derigue fever is -

A. Hypertension

B. Narrow pulse pressure

C. Brady cardia

D. Decreased hematocrit

Explanation:

As plasma leaks out of the vasculature in dengue, diastolic pressure rises relative to systolic pressure, narrowing the pulse pressure — a key warning sign. Copyright © JobScholar. All rights reserved.

প্রশ্ন 52 সঠিক উত্তর: C

What is an appropriate approach for managing deep caries close to pulp?

A. Immediate pulp capping

B. Complete caries removal and direct pulp capping

C. Indirect pulp capping

D. Pulpectomy

Explanation:

For deep caries approximating the pulp without frank exposure, indirect pulp capping (leaving a thin layer of affected dentin and sealing it) helps avoid pulp exposure while allowing reparative dentin formation. Copyright © JobScholar. All rights reserved.

প্রশ্ন 53 সঠিক উত্তর: C

Odontogenic tumor are well managed by -

A. Radiotherapy

B. Radiotherapy with chemotherapy

C. Excision

D. Intralesional alcohol injection

Explanation:

প্রশ্ন 54 সঠিক উত্তর: B

Pericoronitis of 3rd molar gum-

A. Can cause tongue oedema

B. Can cause lock jaw

C. Can cause cellulitis

D. Can cause impacted tooth

Explanation:

প্রশ্ন 55 সঠিক উত্তর: B

Stainless steel loses its resistance to corrosion if heated to a high temperature due to precipitation of-

A. carbon carbide

B. chronium carbide

C. iron carbide

D. nickel carbide

Explanation:

Heating stainless steel to high temperatures can cause chromium carbide precipitation at grain boundaries, depleting chromium locally and reducing the alloy's corrosion resistance (sensitization). Copyright © JobScholar. All rights reserved.

প্রশ্ন 56 সঠিক উত্তর: B

Time dependent flow is known as-

A. Viscosity

B. Creep

C. Resilience

D. Rheology

Explanation:

প্রশ্ন 57 সঠিক উত্তর: B

MTA is used for-

A. Apexification of only dentition

B. Apexification of permanent tooth only

C. Peexification of primary tooth only

D. Apexogenesis of any dentition

Explanation:

প্রশ্ন 58 সঠিক উত্তর: B

Fillers are added to composite resin to increase-

A. Working time

B. Wear resistance

C. Hydrophilic properties

D. Expansion

Explanation:

প্রশ্ন 59 সঠিক উত্তর: A

Le Forte fracture causes-

A. Elongated face

B. Orbital floor fracture with blindness

C. Bilateral condylar fracture

D. Haematoma in cheek

Explanation:

High Le Fort (especially Le Fort III) fractures cause downward and backward displacement of the midface, producing the classic 'dish face' or elongated facial deformity. Copyright © JobScholar. All rights reserved.

প্রশ্ন 60 সঠিক উত্তর: B

Facilitated diffusion-

A. is a form of active transport

B. is a downhil process

C. Occurs without carrier protein

D. Requires energy

Explanation:

Facilitated diffusion moves substances down their concentration gradient (a downhill process) using carrier or channel proteins, without requiring cellular energy. Copyright © JobScholar. All rights reserved.

প্রশ্ন 61 সঠিক উত্তর: C

In metabolic acidosis-

A. pH is increased

B. Primary event is increased HCO3

C. Compensation is by hyperventilation

D. Correction is by respiratory system

Explanation:

প্রশ্ন 62 সঠিক উত্তর: B

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.

Explanation:

Cone beam CT provides three-dimensional information about bone density, quality and anatomical structures, offering far more detail for implant planning than a 2D OPG. Copyright © JobScholar. All rights reserved.

প্রশ্ন 63 সঠিক উত্তর: C

Non odontogenic cyst is-

A. Nasolabial tumor

B. Large radicular cyst

C. Incisive canal cyst

D. Small dentigerrns cyst

Explanation:

The incisive (nasopalatine) canal cyst arises from epithelial remnants of the nasopalatine duct, making it a non-odontogenic developmental cyst, unlike radicular or dentigerous cysts which are odontogenic. Copyright © JobScholar. All rights reserved.

প্রশ্ন 64 সঠিক উত্তর: A

Which one is correct for TMJ disorder?

A. Disc displacement

B. Ankylosis

C. Common in long term anterior teeth missing

D. TMJ bite appliance is always essential

Explanation:

প্রশ্ন 65 সঠিক উত্তর: B

The key limitation of field surveys in rural dental health program is -

A. High availability of data

B. Poor diagnostic accuracy

C. Over qualification of local workers

D. Urban bias in fluoride protocols

Explanation:

Field surveys conducted under resource-limited rural conditions, often by less specialized examiners with basic equipment, tend to suffer from reduced diagnostic accuracy compared to clinical examinations. Copyright © JobScholar. All rights reserved.

প্রশ্ন 66 সঠিক উত্তর: A

First formed unmineralized dentin is-

A. Predentin

B. Mantle dentin

C. Circumpulpal dentin

D. secondary dentin

Explanation:

প্রশ্ন 67 সঠিক উত্তর: A

Body water is regulated by-

A. ADH

B. Cortisol

C. Growth hormone

D. Thyrotropin releasing hormone

Explanation:

Antidiuretic hormone (ADH/vasopressin) regulates water reabsorption in the kidney's collecting ducts, making it the primary hormonal regulator of body water balance. Copyright © JobScholar. All rights reserved.

প্রশ্ন 68 সঠিক উত্তর: B

In Trigeminal Neuralgia-

A. Sharp continuous pain occurs

B. Pain increase with cold touch

C. Pain refers to neck

D. RF is only option of treatment

Explanation:

প্রশ্ন 69 সঠিক উত্তর: B

Which of the following reaction takes place in phase-1 bio transformation?

A. Methylation

B. Hydrolysis

C. Sulphate conjugation

D. Acetylation

Explanation:

Phase I drug metabolism reactions include oxidation, reduction and hydrolysis, which introduce or expose functional groups; conjugation reactions like methylation, sulfation and acetylation belong to Phase II. Copyright © JobScholar. All rights reserved.

প্রশ্ন 70 সঠিক উত্তর: D

Which one is true for Congenital facial cleft?

A. Repair of cleft lip at the age of 1.5 year

B. Repair of cleft palate at the age of 12 months

C. Alveolar bone graft is not very important

D. Speech defect may occur in cleft lip.

Explanation:

প্রশ্ন 71 সঠিক উত্তর: D

In oral malignancy-

A. Basal cell carcinoma is more common

B. Excision is quite useful treatment in carcinoma in situ

C. Very painful lesional form in the beginni

D. SCC involves connective tissue

Explanation:

As squamous cell carcinoma advances beyond the epithelium, it invades the underlying connective tissue (lamina propria/submucosa), a hallmark of invasive malignancy. Copyright © JobScholar. All rights reserved.

প্রশ্ন 72 সঠিক উত্তর: C

Cellular cementum is-

A. Primary cementum

B. More mineralized

C. Found in apical one-third of root

D. Main media of anchorage

Explanation:

Cellular cementum is deposited later in life and is typically found in the apical third of the root and around furcation areas, in contrast to acellular cementum found more coronally. Copyright © JobScholar. All rights reserved.

প্রশ্ন 73 সঠিক উত্তর: C

The cause of improved early strength in resin modified glass ionomers -

A. Water resorption

B. Acid-base reaction only

C. Light-activated resin polymerization

D. Saliva contamination

Explanation:

Resin-modified glass ionomers achieve rapid initial strength through light-activated resin polymerization, which occurs alongside the slower acid-base setting reaction. Copyright © JobScholar. All rights reserved.

প্রশ্ন 74 সঠিক উত্তর: B

Most important property required for dental implant is -

A. Durability

B. Biocompatibility

C. Resilience

D. Yield strength

Explanation:

Biocompatibility is the most fundamental requirement for a dental implant material, as it must integrate with living bone without provoking rejection or adverse tissue reaction. Copyright © JobScholar. All rights reserved.

প্রশ্ন 75 সঠিক উত্তর: A

Content of internal ear includes-

A. Semicircular canal

B. Stapes

C. Chorda tympani nerve

D. Eustachian tube

Explanation:

The semicircular canals, part of the vestibular apparatus, are located within the inner (internal) ear, unlike the stapes, chorda tympani and Eustachian tube which belong to the middle ear region. Copyright © JobScholar. All rights reserved.

প্রশ্ন 76 সঠিক উত্তর: B

Curve of spee is used for-

A. Jaw relation

B. Balanced occlusion

C. Smile design

D. Hardness of denture

Explanation:

প্রশ্ন 77 সঠিক উত্তর: C

Symptom of acute myocardiac infarction is-

A. Chest pain radiated to scalp

B. High fever

C. Shortness of breath

D. Absence of nausea and vomiting

Explanation:

প্রশ্ন 78 সঠিক উত্তর: B

Hypomineralized structure of enamel is -

A. Enamel rod

B. Enamel lamella

C. Inarled enamel

D. Surface enamel

Explanation:

প্রশ্ন 79 সঠিক উত্তর: C

HIV is usually transmitted through-

A. Simple kissing

B. Sleeping in same bed

C. Infected blood IV injection

D. Urine

Explanation:

HIV is transmitted through exposure to infected blood or body fluids, such as sharing needles for intravenous injection, not through casual contact like kissing or sharing a bed. Copyright © JobScholar. All rights reserved.

প্রশ্ন 80 সঠিক উত্তর: A

In Hypovolemic shock:

A. Start with any IV fluid

B. Blood transfusion is always essential

C. IM adrenaline is important as a first step

D. The patient never dies

Explanation:

In hypovolemic shock, prompt volume resuscitation with an available IV fluid is the initial priority while the underlying cause and need for blood products are assessed. Copyright © JobScholar. All rights reserved.

প্রশ্ন 81 সঠিক উত্তর: D

For the disinfection of alginate impression which one is commonly used?

A. Formaldehyde

B. Ethelene oxide

C. 20% Glutaraldehyde

D. 2% Glutaraldehyde

Explanation:

A 2% glutaraldehyde solution (spray or immersion) is a commonly used, practical disinfectant for alginate impressions without significantly distorting the material. Copyright © JobScholar. All rights reserved.

প্রশ্ন 82 সঠিক উত্তর: A

Which of the following agent is used with gingival retraction cord?

A. Aluminium chloride

B. Formaldehyde

C. Benze thonium chloride

D. Na fluoride

Explanation:

Aluminium chloride is a common haemostatic/astringent agent impregnated in gingival retraction cords to control bleeding and achieve tissue retraction before impressions. Copyright © JobScholar. All rights reserved.

প্রশ্ন 83 সঠিক উত্তর: B

Stratified squamous epithelium is located in -

A. Nasal cavity

B. Oral cavity

C. Naso pharynx

D. Laryngopharynx

Explanation:

The oral cavity is lined by stratified squamous epithelium, adapted to withstand mechanical stress from chewing, unlike the respiratory epithelium of the nasal cavity and nasopharynx. Copyright © JobScholar. All rights reserved.

প্রশ্ন 84 সঠিক উত্তর: D

Which sterilization method is not recommended for spore containing instruments?

A. Autoclave

B. Hot air oven

C. Tyndalization

D. Ultraviolet radiation

Explanation:

Ultraviolet radiation has poor penetration and is not reliable for killing bacterial spores, making it unsuitable for sterilizing spore-contaminated instruments compared to autoclaving or dry heat. Copyright © JobScholar. All rights reserved.

প্রশ্ন 85 সঠিক উত্তর: C

Which one is not a Dental emergency?

A. Anaphylactic shock

B. Syncope

C. Alveolar osteitis

D. Dislodgement of molar in oral cavity

Explanation:

Alveolar osteitis (dry socket) is a painful post-extraction complication but is not an acute life-threatening emergency, unlike anaphylaxis, syncope, or risk of tooth aspiration. Copyright © JobScholar. All rights reserved.

প্রশ্ন 86 সঠিক উত্তর: B

In case of large chronic oro-antral fistula-

A. Caldulice surgery alone needed

B. Fat graft in large opening is useful

C. Food accumulates into maxillary antrum leading to severe antral bleeding

D. Profuse bleeding occurs per fistula

Explanation:

প্রশ্ন 87 সঠিক উত্তর: C

Haploid number of chromosomes are present in-

A. Oogonium

B. Primary spermatocyte

C. Spermatid

D. Zygote

Explanation:

Meiosis is complete by the spermatid stage, giving it the haploid chromosome number, unlike oogonium, primary spermatocyte (still diploid) or the zygote (diploid after fertilization). Copyright © JobScholar. All rights reserved.

প্রশ্ন 88 সঠিক উত্তর: C

In case of oral bleeding-

A. Factor VIII deficiency can be treated by suturing and pack

B. Secondary bleeding starts after 24 hours

C. Vessel ligation is important in excessive bleeding

D. Purpura can be treated in outdoor clinic with electrocautery

Explanation:

প্রশ্ন 89 সঠিক উত্তর: C

Which of the following is primarily Lymphoid organ?

A. Spleen

B. Palatine tonsil

C. Bone marrow

D. Lymph node

Explanation:

Bone marrow is a primary lymphoid organ where lymphocytes originate and mature (B cells), whereas spleen, tonsil and lymph nodes are secondary lymphoid organs. Copyright © JobScholar. All rights reserved.

প্রশ্ন 90 সঠিক উত্তর: B

Baroreceptor feed back mechanism decreases blood pressure by-

A. Vasoconotriction

B. Vagus nerve

C. Increasing peripheral resistance

D. Sympathetic stimulation

Explanation:

When baroreceptors sense elevated blood pressure, they increase vagal (parasympathetic) outflow to the heart, slowing heart rate and reducing blood pressure. Copyright © JobScholar. All rights reserved.

প্রশ্ন 91 সঠিক উত্তর: A

Which one causes facial pain?

A. TMJ disorder

B. Temporal arteritis in mandible

C. Glossopharyngeal neuralgia

D. Herpes zostor in chest

Explanation:

প্রশ্ন 92 সঠিক উত্তর: B

Recommended maximum dose of 2% Lidocaine with vaso constrictor is-

A. 4.4 mg/kg

B. 7 mg/kg

C. 10.4 mg/kg

D. 15 mg/kg

Explanation:

প্রশ্ন 93 সঠিক উত্তর: B

Adrenalin in local anesthesia causes-

A. systemic toxicity

B. Less bleeding surgical field

C. Bradycardia

D. Respiratory depression

Explanation:

প্রশ্ন 94 সঠিক উত্তর: D

Glandular tumor-

A. is common in submental salivary gland

B. causes pus formation

C. requires broad spectrum antibiotic

D. essentially requires biopsy to diagnose the tumor.

Explanation:

প্রশ্ন 95 সঠিক উত্তর: B

Which one is correct regarding mobility of teeth-

A. it is common in uncontrolled DM

B. It is common in bruxism

C. Allogenic bone graft is always a good choice

D. Teeth splinting is the choice of treatment

Explanation:

প্রশ্ন 96 সঠিক উত্তর: A

How bleeding is controlled after tooth extraction?

A. Clot removal and pressure pack

B. Bone wax applied to socket

C. Gel foam alone

D. Hot water gurgling

Explanation:

When bleeding persists, removing any loose/friable clot and reapplying firm pressure with a fresh gauze pack over the socket is a standard first step to achieve haemostasis. Copyright © JobScholar. All rights reserved.

প্রশ্ন 97 সঠিক উত্তর: B

Lack of insulin is characterized by-

A. Alkalosis

B. Cellular dehydration

C. Hypoglycemia

D. Water diuresis

Explanation:

প্রশ্ন 98 সঠিক উত্তর: A

Which of the following factor promotes hard tissue mineralization?

A. Alkaline phosphatase

B. Inadequate energy

C. Pyrophosphate

D. Carboxylase

Explanation:

Alkaline phosphatase hydrolyses inhibitory pyrophosphate and raises local phosphate concentration, promoting hydroxyapatite crystal formation during hard tissue mineralization. Copyright © JobScholar. All rights reserved.

প্রশ্ন 99 সঠিক উত্তর: D

Sharpey's fiber can be found in -

A. Enamel

B. Dentin

C. Pulp

D. Cementum

Explanation:

প্রশ্ন 100 সঠিক উত্তর: D

Dental ______ is trained to diagnose and treat basic dental conditions under supervision.

A. Hygienist

B. Technician

C. Assistant

D. Therapist

Explanation:

A dental therapist is trained to diagnose and provide basic dental treatments, typically working under the supervision of a dentist, unlike hygienists, technicians or assistants who have narrower support roles. Copyright © JobScholar. All rights reserved.

48th BCS (Dental Part)

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48th BCS (Dental Part)