(1-127) Dental pathology
The term dilacerations refers to:?
A deformity of a tooth consisting of a sharp bend in the root
Abrasions on Two surfaces of a single tooth
A root or tooth that is split into two
A tooth that is fractured at two or more places
Peg shaped incisors which taper towards the incisal edge are typically seen in all of the following conditions except:?
Congenital syphilis
Rickets
Anhidrotic ectodermal dysplasia
Supernumerary teeth
In erythema migrans ,which papilla of the tongue are absent?
Fungiform
Foliate
Filiform
Circumvallate
Q4. Facial edema, cheilitis granolomatosa and fissured tongue characterize which of the following syndromes?
Frey’s syndrome
Melkerson Rosenthal syndrome
Treacher Collins syndrome
Down’s syndrome
Which of the following is soft tissue cyst which do not produce any radiographic changes?
Nasolabial cyst
Nasopalatine cyst
Mid alveolar cyst
Palatine cyst
The syndrome which consist of clef palate, micrognathia and glossoptosis is known as?
Marfan’s syndrome
Crouzon’s syndrome
Paget’s disease
Pierre Robin syndrome
Developjng ameloblasts are affected by the ingestion of high fluoride content water resulting in:?
Turners tooth
Hutchinson’s tooth
Mottled enamel
Moon’s molar
Teeth that erupt within 30days of birth are called:?
Natal teeth
Neonatal teeth
Primary teeth
Prenatal teeth
A permanent tooth with local hypoplastic deformity in crown is called:?
Turner’s tooth
Taurodontism
Enameloma
Ghost teeth
True ankyloglossia occurs as a result of:?
Union between tongue and floor of the mouth/ ventral surface of the tongue
Absence of lingual frenum
Lingual frenum attached to the tip of the tongue
Short lingual frenum
True generalized microdontia is chacaterised by:?
Small teeth with large jaws
Small teeth with small jaws
Smaller teeth than the normal
Large teeth with small jaws
Gemination of teeth occur due to:?
Division of a single tooth bud after calcification
Division of single tooth bud before calcification
Fusion of two teeth before calcification
Fusion of two teeth after calcification
A deep pit lined by enamel seen in the lingual surface of maxillary lateral incisor is most likely to be:?
Dens in dente
Enamel hypoplasia
Talon’s cusp
Enamel cusp
Ghost teeth is seen in which of the following?
Dens in dente
Regional odontodysplasia
Dentin dysplasia
None of the above
Which of the following lesions does not give blood on aspiration?
Hemangioma
Static bone cyst
Central giant cell granuloma
Aneuwrysmal bone cyst
Absence of pulp chambers is seen in:?
Craniofacial dysostosis
Detinogenesis imperfect
Amelogenesis imperfect
AQny of the above
The most common supernumerary tooth form is:?
Tuberculated
Conical
Screw shaped
Incisor shaped
Dentinogenesis imperfect differs from amelogenesis imperfect in that, the former is:?
A hereditary disturbance
The result of excessive fluoride ingestion
The result of faulty enamel matrix formation
Characterized by calcification of pulp chambers and the root canals of the teeth
A patient notices a well demarcated area of depapillation on his tongue which has been ther for as long as he can remember. The most probable diagnosis is :?
Median rhomboid glossitis
Geographic tongue
Black hairy tongue
Moeller’s glossitis
Fordyce’s spots are:?
Fat tissue embedded in buccal mucosa
Red spots
Present on the cheek mucosa lateral to the angle of the mouth
All of the above
Most common missing tooth in the permanent dentition is:?
Maxillary canine
Maxillary first molar
Mandibulary second premolar
Mandibulary first molar
Hypoplastic defects in permanent central and lateral incisors are likely to result due to severe illness or other factors during:?
First nine months of life
First two years of life
First month of life
Two or three years of life
Ectopic sebaceous glands in the mouth are called”?
Linea alba buccalis
Heck’s disease
Lingual varices
Fordyce spots
Gardner syndrome does not include”?
Osteomas
Epidermoid cysts
OsteosarcomaDentinogenesis imperfect is:
Impacted permanent teeth
Lingual tonsil arises:?
As developmental anomalies
From carcinomatous transformation
As a result of hyperplasia
Due to repeated trauma in the area
Dentinogenesis imperfecta is:?
Autosomal dominant
Autosomal recessive
Sex linked recessive
Not a inheritable trait
Clinical evidence of dentinogenesis imperfect is:?
Defective enamel and dentine
Defective dentine and obliterated pulp chamber
Increased rate of caries
Oligodontia
Bohn’s nodules are:?
Cystic swelling in neonates
Cysts associated with soft palate
Cysts of gingiva in growing children
Warts on the tongue
False about anodontia:?
May involve both the deciduous and permanent dentition
In false anodontia, tooth doesn’t undergo full development
May involve a single tooth
In total anodontia, all teeth are missing
Turner’s tooth is seen in:?
Enamel hypoplasia due to hypocalcemia
Enamel hypoplasia due to birth injuries
Enamel hypoplasia due to congenital syphilis
Enamel hypoplasia due to local infection or local trauma
All are true about supernumerary tooth except:?
May have resemblance to normal teeth
Distomolars does not resemble any other tooth
Mesiodens is the most common supernumerary tooth
More common in mandible
Dental anomaly of teeth associated with defective bone formation is seen in:?
Amelogenesis imperfect
Dentinogegesis imperfecta
Odontodysplasia
Osteitis deformans
Prolonged administration of broad spectrum antibiotics results in the formation of :?
Black hairy tongue
Median rhomboid glossitis
Geographic tongue
Fissured tongue
Hairy tongue is characterized by:?
Hypertrphy of fungiform papillae
Hypertrophy of filiform papillae
Hypertrophy of foliate papillae
Hypertrophy of circumvallate papillae
A four year old child has less number of teeth and lateral incisors with bifurcated roots with two roots canals. This condition is called:?
Dilaceration
Concrescence
Fusion
Germination
Nasolabial cyst is thought to arise from:?
Remnants of cells rests of Serres
Remnant of cell rests of Malassez
Remnants of cell rests of embryonic lacramal duct
Maxillary sinus lining epithelium
Microdontia is seen most commonly affecting:?
Maxillary lateral incisor
Mandibular second premolar
Mandibular second incisor
Mandibular first molar
Taurodontism is characterized by:?
Hypercemenosis
Elongated wide pulp canals and short roots
Obliterated pulp chambers with secondary dentine deposition
Rootless teeth with thin shell of enamel
Mottled enamel is due to:?
Vitamin A deficiency
Excess of fluoride
Vitamin D deficiency
Teratogens
Which of the following is fissural cyst?
Dentigerous cyst
Primordial cyst
Nasopalatine cyst
Radicular cyst
Bifid tongue, a congenital anomaly occurs due to non fusion of:?
Tuberculum impar and lateral lingual swellings
Hypobranchial eminence and tuberculum impar
The two lateral linguai swellings
Some of the above
Anodontia affects the growth of:?
Maxilla
Mandible
Alveolar bone
Cranium
Delayed eruption of at least part of the dentition is a recognized feature of all of the following except:?
Rickets
Congenital hyperthyroidism
Cleidocranial dysplasia
Cherubism
About geographic tongue, all are true except:?
Lesions may be bilaterally symmetrical on tongue
No treatment is required
Is a precancerous condition
May be related to emotional stress
Which of the following dental sequel is likely in child with history of generalized growth failure in the first six months of life?
Retrusise maxilla
Enamel hypoplasia
Retrusive mandible
Dentinogenesis imperfect
A four year old child has anormal complement of primary teeth, but they are gray and exhibit extensive occlusal and incisal wear. Radigraphic examination indicates extensive deposits of secondary dentin in these teeth. This condition is most likely:?
Neonatal hypoplasia
Amelogenesis imperfecta
Cleidcranial dysplasia
Dentinogenesis imperfecta
Following trauma to tooth, the next day there was no response to pulp tests you should?
Review again later
Start endodontic treatment
Extraction of tooth
None of the above
Which primary teeth are LEAST affected with the nursing bottle syndrome?
Maxillary molars
Maxillary and mandibular canines
Mandibular incisors
Maxillary incisors
Mandibular molars
Which of the following anomalies occurs during the initiation and proliferation stages of tooth development?
Amelogenesis imperfecta
Dentinogenesis imperfecta
Enamel hypoplasia
Oligodontia
Ankylosis
A health 6 year old child presents with carious maxillary second primary molar with a necrotic pulp. Which treatment would be preferred?
Extraction
Indirect pulp treatment
Pulpotomy
Pulpectomy
Antibiotic coverage
Tooth under occlusal trauma shows?
Bone resorption
Necrosis of the pulp
Hypercementosis
Triangulation
All of the above
As far as localised alveolar osteitis is concerned; which one of the following is true?
The incidence in the mandible and maxilla is similar
The prophylactic prescription of antibiotics prior to extraction reduces the incidence.
Excessive fibrinolysis is the likely aetiology
Purulent exudate must be seen for a diagnosis and irrigation ismandatory
Zinc oxide eugenol and alvogyl dressing promote a rapid bone growth
A child has sustained a traumatic exposure of primary central incisor, he presents to you for treatment two days after the injury. Which of the following should be considered?
Pulpotomy and Ca(OH)2
Pulpotomy and formocresol
Direct pulp capping
Pulpectomy (RCT)
Patient presents with rapidly progressive root caries on many teeth. Which of the following laboratory results would be a possible indicator of this?
A. Stimulated salivary secretion rate of 1.5ml/min
S. Mutans concentration of 105 organism/ml
A plaque sample containing 5% S. mutans
A lactobacilli concentration of 105 organism/ml
E. Salivary buffering PH 5.5
Which of the following is NOT characteristic of Down’s syndrome?
Decreased neutrophil function
Macroglossia
Macrodontia
An increased susceptibility to periodontal disease
Congenitally missing teeth
In developing plaque; the adhesive polymer produced by streptococcus mutans is synthesis from?
Glucose
Fructose
Sucrose
Lactose
Amylose
In which situation the translucency of a tooth is lost?
Death of the pulp
Complete calcification of pulp chamber
Hyperaemia
Pulp stone
All of the above
Infection with new bone formation is?
Garr’s osteomyelitis
Condensing osteitis
Torus
All of the above
Community water fluoridation MOST effectively achieves is**?
90-95% reduction of caries
45-55% reduction of caries
Reduces pit and fissures caries more than smooth surfaces
Reduces smooth surfaces more than pit and fissures
Size of pulp chamber within the tooth is influenced by?
Age
Parafunctional
History of the tooth /abrasion, erosion, caries/
All of the above
Lamina dura is actually ?
Cortical bone
Spongy bone
Immature bone
Cribriform plate perforated by nutrient carnally
Bitewing x rays are taken to assist in the detection of caries**?
Occlusally
Lingually
Buccally
Gingivally
Interproximally
The objective of pulpotomy is to ?
Preserve vitality of coronal pulp
Preserve vitality of entire pulp
Preserve vitality of radicular pulp
Regenerate a degenerated and necrotic pulp
None of the above
What contra indicate pulp capping?
Accidental exposure on vital young molars
When inflammation of radicular pulp is already present
When roots are greatly curved and tortuous
When anterior tooth is vital and immature with wide open apices
None of the above
Hypoplasia as seen in x rays**?
Thick enamel surface
Thin enamel surface
Sometimes large pulp chamber
Can not be detected on X rays
Which of the following is LEAST likely to cause pain?
Carious pulp exposure.
Chronic hyperplastic pulpitis (pulp polyp).
Acute pulpitis.
Apical periodontitis.
Which of the following may affect the results of electric pulp testing?
Emotional factors.
Pain threshold.
Analgesics.
Recent trauma.
All of the above.
Which one of the following is the initial treatment for internal resorption?
Pulpectomy.
Pulpotomy.
Pulp capping.
Apicoectomy.
What clinical evidence would support a diagnosis of acute dento-alveolar abscess?
1.Anegativereaction to the electric vitality tester.
2.A positive reaction of short duration to cold.
3.A positive reaction to percussion.
4.Presence of a draining fistula.
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only
All of the above.
Which of the following tests is most useful in differentiating between an acute apical abscess and an acute periodontal abscess?
Palpation.
Radiography.
Percussion.
Pulp vitality.
Which of the following microorganisms are most frequently found in infected root canals?
Streptococcus viridans.
Staphylococcus aureus.
Lactobacilli.
Enterococci.
Staphylococcus albus.
Function(s) of the dental pulp include(s) ?
1.defensive.
2.sensory.
3.circulatory.
4.dentin repair.
1) (2) (3)
(1) and (3)
(2) and (4)
(4) only
All of the above
When percussion on the occlusal surface of a tooth results in a positive response, the most likely etiology of inflammation is?
Pulpal.
Periodontal.
Periapical.
None of the above
An acute periapical abscess must be associated with :?
1.pain.
2.sensitivity to percussion.
3.non-vital tooth.
4.periapical radiolucency.
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only
All of the above
A 6 year old patient has an intrusive injury to tooth 5.2. All of the following are possible sequelae to the permanent successor EXCEPT?
Enamel hypoplasia.
Root dilaceration.
Delayed eruption.
Ectopic eruption
The most appropriate emergency management of a mature permanent tooth with acute irreversible pulpitis is?
Trephination
Apical surgery
Pulpotomy
Pulpectomy
Incision and drainage
A radiograph reveals a radiolucency associated with the apex of tooth 1.5. There is a large restoration but the tooth is asymptomatic and the associated soft tissues appear normal. What is the most likely diagnosis?
Chronic suppurative periradicular periodontitis.
Acute periradicular periodontitis
Chronic periradicular periodontitis.
Acute periradicular abscess
A patient has spontaneous pain and intense sensitivity to cold with lingering pain. The most likely diagnosis is?
Chronic periradicular periodontitis
Chronic irreversible pulpitis
Acute irreversible pulpitis
Acute periradicular periodontitis
The permanent anterior tooth that exhibits the greatest variation in size and shape is the?
Mandibular lateral incisor
Maxillary central incisor
Maxillary lateral incisor
Mandibular central incisor
A patient presents with a 3 week history of prolonged tooth pain to hot and cold. Three days ago, the symptoms changed to moderate pain on biting combined with a dull, spontaneous ache relieved by cold. The most likely diagnosis is?
Reversible pulpitis
A vertical root fracture
Chronic periradicular abscess
Acute pulpitis with periradicular periodontitis
A cracked tooth
Amelogenesis imperfecta is?
Associated with osteogenesis imperfecta
Caused by environmental factors
A hereditary condition with different inheritance patterns
A multifactorial disorder
Dilated odontome is a synonym of?
Dens invaginatus
Talon cusp
Dens evaginatus
Macrodontia
The base of invagination of crown/root in dens invaginates contains?
Dystrophic dentin
Dystrophic enamel
Necrotic pulp tissue
Dystrophic cementum
The appearance of normal thickness enamel with extremely thin dentin and abnormally large pulp chamber is indicative of?
Amelogenesis imperfecta
Dentinogenesis imperfecta Type I
Dentinogenesis Type III
Dentin dysplasia Type II
Loss of organization of radicular dentin with subsequent shortening of root length is a feature of?
Dentin dysplasia Type I
Dentin dysplasia Type II
Dentinogenesis imperfecta Type II
Dentinogenesis imperfecta Type III
Lack of development of six or more teeth is denoted by the term?
Oligodontia
Hypodontia
Anodontia
Partial anodontia
According to miller, which of these acids was held responsible for producing the lesions of dental caries, according to Miller?
Lactic acid
Ascorbic acid
Picric acid
Citric acid
Which of these factors has not been assigned an essential role in Miller’s chemicoparasitic theory of dental caries?
Carbohydrates
Microorganisms
Heredity
Acids
From the properties given below identify which one does render carbohydrates cariogenic?
Rapid clearance from oral cavity
Stickiness of carbohydrates
Frequent ingestion of carbohydrates
Simple carbohydrates
Identify which amongst the below given bacteria does not cause dental caries.?
S. mutans
L. acidophilus
A. naeslundii
S. aureus
Dental plaque contains all of the following, except?
Microorganisms
Mucin
Exudate
Desquamated epithelial cells
Which product of the streptococci is responsible for adherence of the dental plaque to the smooth surfaces of teeth?
Glucan
Glycoprotein
Glycosaminoglycan
Proteoglycan
Which is the principal buffering ion present in saliva?
Bismuth
Bicarbonate
Phosphorus
Fluoride
Which amongst the following factors does not contribute towards greater caries resistance of the surface enamel of a tooth?
Fluoride content
Slower dissolution in acids
Lesser water content
Lesser mineral content
The tooth that is most susceptible to dental caries is?
Mandibular 1st molars
Mandibular 2nd molars
Maxillary canines
Maxillary 2nd premolars
State which amongst the below given factors is not an antibacterial factor present in saliva?
Lysozyme
Lysosome
Lactoferrin
SIGA(Secretory immunoglobulinA)
The factor that is least associated with increased incidence of dental caries is?
Carbohydrate rich diet
Malposed tooth
Smoking
Quantity of saliva
Undermining of enamel occurs due to?
Lateral spread of caries midway between enamel and dentin
Lateral spread of caries at the dentinoenamel junction
Lateral spread of caries midway between dentin and pulp
Spread of caries along dentinal tubules
The least likely location for occurrence of smooth surface caries is:?
Labial surface of maxillary incisors
Proximal surfaces of all teeth
Gingival 1/3rd of buccal surfaces of teeth
Gingival 1/3rd of lingual surfaces of teeth
Which theory of dental caries proposes that organic elements in teeth are the initial pathway of invasion of microorganisms?
Sucrose chelation
Proteolytic
Autoimmune
Chemicoparasitic
Which of the following is type of nursing bottle caries ?
Acute
Recurrent
Rampant
Arrested
The first change to occur in caries of enamel is?
Loss of rod enamel
Loss of inter rod enamel
Loss of rod sheath
Increased prominence of enamel rods
Which surface of a tooth has maximum susceptibility for occurrence of dental caries?
Occlusal
Lingual
Mesial
Distal
In enamel caries, the advancing front of the lesion is called?
Body of lesion
Dark zone
Surface zone
Translucent zone
Of all the zones in enamel caries which zone is not always present?
Translucent
Dark
Body
Surface
What is the earliest histological evidence of dentinal caries?
Transparent dentin
Fatty degeneration of odontoblastic processes
Lateral spread of caries along dentino-enamel junction
Miller’s liquefaction foci
What is the percentage of fluoride in acidulated phosphate fluoride (APF) gels?
2.34 percent
1.23 percent
3.45 percent
1.24 percent
The mechanism of cariostatic action of chlorhexidine is?
Absorption into enamel crystals
Absorption into enamel crystals and salivary mucins
Inhibition of microorganisms
Inhibition of carbohydrate degradation
The most common cause of odontalgia is?
Dental caries
Pulpitis
Root fracture
Periodontitis
Most accepted explanation for anachoretic pulpitis is?
Increased capillary permeability
Increased vascular pressure
Presence of large number of dilated capillaries
Lack of collateral blood supply
Pulpitis aperta and pulpitis clausa refer to types of pulpitis classified on the basis of?
Severity of inflammation
Extent of inflammation
Location of inflammation
Presence/absence of direct communication with oral cavity
The more accepted terminology for pulp hyperemia is?
Focal irreversible pulpitis
Focal reversible pulpitis
Subtotal pulpitis
Pulpitis clausa
Focal reversible pulpitis is most commonly seen in all of the following cases except?
Large metallic restorations
Shallow carious lesions
Deep carious lesions
Restorations with defective margins
Pain which increases in intensity as the patient lies down is characteristic of?
Focal reversible pulpitis
Acute pulpitis
Chronic hyperplastic pulpitis
Chronic pulpitis
All of the following occur as a sequel to pulpitis Except?
Lateral periodontal cyst
Periapical granuloma
Apical periodontal cyst
Periapical abscess
All of the following are common radiological features associated with a periapical granuloma EXCEPT.?
Thickening of PDL around root apex
Well-defined radiopacity
Root resorption of involved tooth
Well-defined radiolucency with sclerotic borders
Foam cells within periapical granulomas that have ingested lipids are called:?
Polymorphonuclear leukocytes
Langerhans cells
Macrophages
Plasma cells
Cholesterol clefts observed in periapical granulomas are derived From?
Breakdown of adipose cells
Breakdown of epithelial cells
Breakdown of RBCs
Breakdown of cholesterol
Apical periodontal cyst usually occurs as a sequela of?
Acute pulpitis
Periodontal abscess
(c) Osteomyelitis
Periapical granuloma
The lesion that is least likely to produce any noticeable signs or Symptoms is called.?
Radicular cyst
Acute pulpitis
Periapical abscess
Ludwig angina
Which amongst the following is not a predisposing factor of osteomyelitis?
Trauma to bone
Radiation damage to bone
Paget’s disease
Fibrous dysplasia
What is the most frequent cause of acute osteomyelitis of jaw?
Dental infection
Trauma
Paget disease
Malnutrition
Condensing osteitis is another name for?
Chronic suppurative osteomyelitis
Chronic focal sclerosing osteomyelitis
Chronic diffuse sclerosing osteomyelitis
Garre’s osteomyelitis
In which type of osteomyelitis will you find focal gross thickening of periosteum with peripheral reactive bone formation?
Chronic focal sclerosing osteomyelitis
Chronic diffuse sclerosing osteomyelitis
Florid osseous dysplasia
Garre’s osteomyelitis
Root resorption is commonly seen in?
Cellulitis
Radicular cyst
Garre’s osteomyelitis
Periapical abscess
If a periapical abscess drains intraorally through a sinus tract after perforating the buccal cortical plate and surface epithelium it forms a mass of granulation tissue known as?
Phoenix abscess
Residual cyst
Parulis
Lateral radicular cyst
The lateral radicular cyst arises from?
Cell rests of Malassez
Cell rests of Serres
Overlying oral epithelium
Dental lamina
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