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Online TestPapers

AIIMS (Dec 1999)

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1.	Pulp mummification is indicated in
	1.	non-vital tooth
	2.	deep caries on an asymptomatic vital tooth
	3.	traumatic exposure of a vitla tooth with wide open apex
	4.	deep caries on an symptomatic non-vital tooth


2.	Numbness and tingling sensation fell in the anterior 1/3rd of the tongue in a complete denture weareer can be due to.
	1.	Over-extended lingual flange
	2.	sharp and irregular lingual borders
	3.	allergy to residual monomer of acrylic
	4.	excessive vertical dimension


3.	The source of calcium ions of a calcific brifge in a tooth in which calcium hydroxide pulpotomy has been performed is
	1.	blood vessel bone
	2.	debrided cells
	3.	dentin
	4.	from the calcium hydroxide


4.	The malocclusion which can be prevented is
	1.	loss of proximal contacts
	2.	absence of teeth
	3.	cleft palate
	4.	endocrine disorder


5.	There is a diffuse pain in the ridge of mandibular complete denture wearer.This is due to
	1.	compression of the mental foramen
	2.	high occlusal plane
	3.	increased facial height
	4.	increased vertical dimension


6.	Non-keratinized epithelium is found over
	1.	attached gingiva
	2.	free gingiva
	3.	interdental papilla
	4.	gingival sulcus


7.	In AIDS hairy leukoplakia is found most commonly in which location
	1.	hard palate
	2.	buccal mucosa
	3.	lateral border of tongue
	4.	soft palate


8.	Large anterior fontanella,open sutures,small slanting eyes,decreased sexual development,macroglossia and enamel hypoplasia are seen in
	1.	craniofacial dysostosis
	2.	down's syndrome
	3.	treacher collin syndrome
	4.	osteopetrosis


9.	The examiner stands behind a patient and keeps his head upright and tilted to one side He is palpating
	1.	Submandibular gland
	2.	Spasmodic masseter muscle
	3.	TMJ
	4.	Deep and superficial cervical lymp nodes


10.	If the pulp of the single rooted canal is triangular in cross section witht the base of the triangle located facially and apex located lingually with the mesial arm longer than the distal,the tooth is most likely
	1.	Maxillary central incisor
	2.	Maxillary lateral incisor
	3.	Mandibular second premolar
	4.	Mandibular central incisor


11.	Improved marginal adaptation in a composite restoration can be achieved by
	1.	Moisture free environment
	2.	Application of pressure
	3.	Acid etching
	4.	Continued packing


12.	In which of the following condition is the role of microbial plaque is most obscure
	1.	Periodontitis
	2.	Juvenile periodontitis
	3.	Desquamative gingivitis
	4.	Necrotising ulcerative gingivitis


13.	Sibliant sounds are produced at
	1.	Rest position
	2.	Occluding position
	3.	Open from resting position
	4.	Between rest and occluding position


14.	In examining the edentulous mouth of an aged patient wearing complete maxillary denture against mandibular distal extention partial denture teeth,the dentist notices increased resorption in the maxillary anterior region.This is due to
	1.	increased overjet
	2.	improper curve of spee
	3.	faulty occlusal plane
	4.	lack of protrusive balance


15.	The advantage of preparing centric records in immediate denture will help the dentist in the final denture
	1.	Better selection and placement of artificial teeth
	2.	less processing errors
	3.	good occlusal balance and in relations in the final denture
	4.	No post denture delivery equilibration required


16.	The most common cause of fracture of isthumus in a class II amalgum restoration is
	1.	inadequate depth at the isthumus
	2.	inadequate width at the isthumus
	3.	inadequate resistance form
	4.	unsupported enamel rods


17.	Submandibular calculus can be removed by
	1.	dilation of the duct
	2.	excision of the opening of duct
	3.	removal of the gland
	4.	incision of the duct and removal of calculus


18.	Median rhomboid glossitis is associated with
	1.	oral cancer
	2.	fungal infection
	3.	leukoplakia
	4.	buurning sensation of tongue


19.	Kwashiokar is associated with
	1.	low cholesterol
	2.	low plasma albumin
	3.	high blood glucose
	4.	high blood urea


20.	Hodgkin's disease is considered to be
	1.	follicular reticulosis
	2.	inflamatory disease
	3.	chronic granulomatous disease
	4.	a malignant neoplasm


21.	Lidocaine is used instead of procaine more commonly in dentistry because lidocaine
	1.	causes less depression of CNS
	2.	causes less cardiovascular collapse
	3.	causes lesser incidence of allergic reactions
	4.	is 50 times more potent than procaine


22.	Which of the following hormones increases the sensitivity of heart to epinephrine
	1.	parathyroid
	2.	insulin
	3.	thyroid
	4.	testosterone


23.	A statistical test which indicates the chance or probability of an observed difference between two means occuring by chance is called
	1.	significance
	2.	means
	3.	ratio
	4.	normalcy


24.	Green vermilion index measures the
	1.	oral hygiene
	2.	gingival health
	3.	plaque
	4.	calculus


25.	Lesions of oral Tuberculosis are associated with all the following EXCEPT
	1.	central caseation
	2.	hyaline degeneration
	3.	giant cell in the centre
	4.	presence of epitheloid cells


26.	Leeway space is utilized by
	1.	early mesial shift
	2.	late mesial shift to establish a class I molar relationship
	3.	to accommodate the large sixe for canine and premolars
	4.	to compensate for premature loss of 2nd deciduous molar


27.	The advantage of ultraspeed handpiece is
	1.	Low frequency and high amplitude make the patient comfortable
	2.	High frequency and low amplitude do not let thee patient perceive pain
	3.	less trauma
	4.	none of the above


28.	'Wash impression' is taken with
	1.	Impression wax
	2.	Alginate
	3.	Impression plaster
	4.	Impression paste


29.	The upper denture falls when the patient opens his mouth wide.This is due to
	1.	thick labial flange
	2.	over-extended borders
	3.	thick disto buccal flange
	4.	poor peripheral seal


30.	Glossy smooth and rounded margins of a casting are due to
	1.	shrinkage of alloy on cooling
	2.	investment breakdown
	3.	incomplete wax elimination
	4.	incomplete gas elimination


31.	Myofuctional appliance is given at which stage
	1.	Primary dentition
	2.	mixed dentition
	3.	permanent dentition
	4.	adulthood


32.	Incorporation walls of a class II cavity on a deciduous molar
	1.	Stability
	2.	Functionally moulded perphery
	3.	Harmonius occlusion
	4.	Posterior palatal seal


33.	The proximal walls of a class II cavity on a deciduous molar
	1.	Follow directions of enamel rods
	2.	Convergence toward occlusal surface
	3.	Diverge toward occlusal surface
	4.	Parallel to each other


34.	Transitional phase od=f dentition is
	1.	The time period before all permanent teeth have erupted and primary teeth have been lost
	2.	After all permanent teeth have erupted
	3.	Phase of eruption of primary teeth
	4.	None of the above


35.	Balanced occlusion refers to
	1.	Canine protection
	2.	Bilaterally balanced occlusion in a complete denture service and a bilaterally free in partial denture service
	3.	Unilaterally balanced occlusion in complete denture service
	4.	Group protection


36.	Oblique facial clefts occur due to failure of fusion of
	1.	maxillary and mandibular processes
	2.	maxillary process wth lateral nasal process
	3.	maxillary process with nasal process
	4.	medial nasal process with the lateral nasal proccess


37.	The finish line used with completed cast crown is
	1.	Chamfer
	2.	Shoulder
	3.	Shoulder with bevel
	4.	Feather edge


38.	The formation of the dental lamina is initiated by
	1.	Forebrain
	2.	Rahtke's pouch
	3.	Neural crest cells
	4.	Odontoblasts


39.	A patient on 300mg of aspirin will show all the following EXCEPT
	1.	irreversible inhibition of cyclooxygenase pathway
	2.	prolonged bleeding time
	3.	inhibition of thromboxane TXA2
	4.	inhibition of prostaglandin PGL2


40.	A patient with fever for the last 15 days is suspected of suffering from typoid.which test will confirm the diagnosis
	1.	Blood culture
	2.	Widal test
	3.	Tool culture
	4.	Urine culture


41.	Guiding planes are
	1.	Located adjacent to the edentulous area
	2.	Located far anterior to the edentulous area
	3.	Helps in the stability of the denture
	4.	Provides a different path of insertion and removal


42.	Indirect retainers are situated
	1.	as far anteriorly from the fulcrum line
	2.	as close to the fulcrum line
	3.	at the canine region
	4.	at the mesial marginal ridge of the premolars in a class I case


43.	A soluble polysacharide formed by microorganism in the dental plaque from the fructose moiety to sucrose
	1.	Levan
	2.	Dextran
	3.	Amylopectin
	4.	Hyaluronic acid


44.	Stress breakers are not used in partial denture constriction because
	1.	they are expensive
	2.	increase the vertical dimension
	3.	they are difficult to design and fabricate
	4.	harmful effect on the abutment


45.	Which of the following muscle divides the submandibular gland into a superificial and deep part
	1.	genioglossus
	2.	mylohyoid
	3.	sternohyoid
	4.	digastric


46.	Which of the following muscle helps in depressing the mandible
	1.	temporalis
	2.	masseter
	3.	lateral pterygoid
	4.	medial pterygoid


47.	The interarch distance measured when the occlusal rims are in contact is called as
	1.	freeway space
	2.	vertical dimension of occclusion
	3.	vertical dimension of rest
	4.	centric realtion


48.	Rubber base impression are poured immediately as they
	1.	continue to polumerise
	2.	become elastic
	3.	show inhibition and syneresis
	4.	show gelation


49.	Which of the following drug is used to counteract the gastric irritation produced by administration of NSAID
	1.	roxatidine
	2.	pirenzipine
	3.	betaxolol
	4.	misoprostol


50.	All the following muscles of larynx are supplied by the recurrent laryngeal nerve EXCEPT
	1.	crico-arytenoid
	2.	crico-thyroid
	3.	thyro-arytenoid
	4.	thyrohyoid


51.	The frontal paranasal sinus drains into the
	1.	superior meatus
	2.	middle meatus
	3.	inferior meatus
	4.	sheno-ethmoidal recess


52.	Post and core is indicated for
	1.	vital tooth with proximal caries
	2.	badly damaged non-vital endodontically treated tooth
	3.	badly damaged vital tooth
	4.	tooth with fractured incisal third


53.	A child with thumb-sucking habit shows unilateral posterior cross-bite due to
	1.	unilateral expansion of the maxilla
	2.	bilateral expansion of the maxilla
	3.	bilateral contraction of the maxilla with deviation of mandible
	4.	none of the above


54.	Tweed's analysis involves which of the following planes
	1.	Occlusal plane,mandibular plane
	2.	FHP,mandibular plane and incisal plane
	3.	Occlusal plane,FHP,mandibular plane
	4.	FHP,incisal plane,occlusal plane


55.	Giant cell lesions of the periodontium are considered to be
	1.	benign lesions
	2.	malignant lesions
	3.	chronic inflamatory
	4.	non-neoplastic reactive lesions


56.	Thermal conductivity of which material is close to dentin
	1.	Amalgum
	2.	Silicate
	3.	Composite resin
	4.	Cavity varnish


57.	A thin film of cavity varnish is applied on the tooth surface to
	1.	insulate against thermal stimuli
	2.	help in the seating of the restoration
	3.	protection against acidic insult
	4.	help in the setting of restoration


58.	Palatal secretions affect the setting of all the impression materials EXCEPT
	1.	Silicone
	2.	agar-agar
	3.	impression paste
	4.	impresssion plaster


59.	Which one of the arteries does not supply the circle of willis
	1.	anterior cerebral
	2.	middle cerebral
	3.	posterior-inferior cerebellar
	4.	posterior communicating


60.	A patient undergoing radiotheraphy will show after 2 days
	1.	erythema
	2.	chronic dermatitis
	3.	hyperoigmentation of skin
	4.	none of the above


61.	Russell's bodies are found in
	1.	activated macrophages
	2.	histiocytes
	3.	plasma cells
	4.	erythrocytes


62.	A patient shows inability to close the right corner of the mouth is most probably suffering from
	1.	Myasthenia gravis
	2.	Bell's palsy
	3.	TMJ dysfunction syndrome
	4.	Multiple sclerosis


63.	The odontoblast killed during cavity preparation are derived from
	1.	unaffected odontoblast from the pulp
	2.	undifferentiated cells
	3.	histiocytes
	4.	osteoblasts


64.	Tobacco smoking is the most common predisposing cause of which of the following
	1.	cyclic neutropenia
	2.	gigivitis periodontitis
	3.	juvenile periodontitis
	4.	necrotizing ulcerative gingivitis


65.	Lateral trepanation is used in
	1.	mandibular third molar
	2.	maxillary sinus
	3.	Lefort I
	4.	labial frenum


66.	Circumoral pigmentation is seen in
	1.	Arsenic posioning
	2.	Lead poisioning
	3.	Peutz jeghers syndrome
	4.	Plummer vinson syndrome


67.	The virus HIV is produced and propagated in
	1.	dentritic cells of the lymph node
	2.	circulating T4 lymphocytes
	3.	B lymphocytes
	4.	epithelial cells of the sex organs


68.	A 45 year old women has a nodule in the neck which moves during swallowing.The nodule most probably is attached to
	1.	Thyroid
	2.	Larynx
	3.	Oesophagus
	4.	Pharynx


69.	The special visceral afferent fibers of the facial nerve are located in which nuclei
	1.	motot nuclei
	2.	nucleus ambiguous
	3.	nucleus of tractus solitarius
	4.	lacrimatory nucleus


70.	A dentist planning to remove an impacted tooth will need which of the following radiograph
	1.	a periapicaln film will be all that is required
	2.	a bite-wing film will be of little or no use
	3.	a lateral view will be all that is required
	4.	an anteroposterior view is all that is required


71.	Growth of the maxilla in the vertical direction is due to
	1.	growth of the alveolus
	2.	growth at sutures
	3.	growth of the cranial base
	4.	growth of the synchondrosis


72.	Dental changes seen in erythromatosis fetallis are
	1.	notched incisors
	2.	peg lateral
	3.	pigmented teeth
	4.	none of the above


73.	Enamel mottling is NOT seen in deciduous teeth but seen mostly in permanent dentition because
	1.	calcification period of deciduous teeth is short
	2.	placenta acts as a barrier
	3.	fluoride is taken up by the fast growing skeletal tissue and the deciduous teeth are spared
	4.	placenta acts as partial barrier to the transfer of fluoride ions


74.	Gingival bleeding index measures the
	1.	gingival bleeding at the time of recording
	2.	cumulative gingival health after 1 week
	3.	cumulative gingival health after 15 days of performance
	4.	gingival health of a child


75.	A child who has an avulsed tooth 1/2 hour back should carry the tooth to the dentist in
	1.	cold milk
	2.	normal saline
	3.	wrapped in a handkerchief
	4.	buccal vestibule


76.	A permanent tooth bud which has been accidentally removed during extraction of a deciduous tooth should be
	1.	discarded
	2.	the socket curretted and tooth bud replanted
	3.	pulpectomy of the tooth bud and placed in to the socket
	4.	place deep into the socket from where it was removed


77.	Juctional epithelium is the only area of the body where microorganism can be threat to the underlying connective tissue because
	1.	junctional epithelium in attached to calcified tooth structure
	2.	calcified tissue helps in the colonisation of bacteria
	3.	rapid turnover of junctional epithelial cells
	4.	none of the above


78.	The Current Bar clasp design uses
	1.	mesio-occlusal rest
	2.	disto-occlusal rest
	3.	mesial or distal rest depending on the situation
	4.	choice of the dentist


79.	The muscle determining the maxillary buccal frenum is
	1.	quadratus labii superioris
	2.	zygomaticus major
	3.	triangularis
	4.	levtor anguli oris


80.	Moeller's glossits or Hunter's glossitis is seen in
	1.	iron deficiency anemia
	2.	Vit, B12 deficiency
	3.	Thiamine deficiency
	4.	syphillis


81.	Codman's triangle is seen in
	1.	Osteoradionecrosis
	2.	Fibrous dysplasia
	3.	Osteosarcoma
	4.	Squamous cell carcinoma of lip


82.	Light cure system side effect is
	1.	iritis
	2.	cataract
	3.	conjuctivitis
	4.	retinal damage


83.	Stellite alloy is
	1.	Chrome-cobalt alloy
	2.	aluminium-bromide alloy
	3.	type II gold alloy
	4.


84.	Lateral shift (Bennet movement) influences
	1.	Faciolingual position of teeth
	2.	Mesiodistal position of teeth
	3.	Both of the above
	4.	none of the above


85.	Pagets classification is based on
	1.	child behaviour
	2.	parental behaviour
	3.	social status of parent
	4.	none of the above


86.	Acromegaly is associated with
	1.	CL I malocclusion
	2.	CL I crossbite
	3.	CL II malocclusion
	4.	CL III malocclusion


87.	In class II amalgum restoration axipulpal line angle is
	1.	double beveled
	2.	right angled
	3.	rounded
	4.	shenpend


88.	Swallowing threshold is determined by
	1.	Gustation
	2.	Olfaction
	3.	Salivary flow
	4.	none


89.	Most common lesion associated with gingiva due to irritation is
	1.	irritation fibroma
	2.	pyogenic granuloma
	3.	giant cell granuloma
	4.	none


90.	Serum sickness syndrome is
	1.	a transplat immunity
	2.	an anaphylactic shock
	3.	arthrus reaction
	4.	none