Ish Shah
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unit 11 abnormalities in tooth morphology unit 12 unit 13 unit 14 unit 15

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Paediatric Dentistry PMU- Part 3 (units 11-15)

Pregunta 1 de 98

1

Abnormalities in tooth morphology are alterations in number, shape, size and position of tooth

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 2 de 98

1

Tooth germination arises when two teeth develop from one tooth bud as a result of an abortive attempt of the single tooth bud to divide.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 3 de 98

1

Fusion of teeth may occur only in upper teeth.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 4 de 98

1

Dilaceration is a developmental disturbance in the number of teeth.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 5 de 98

1

Microdontia is a developmental disturbance in the number of the teeth.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 6 de 98

1

Macrodontia is where teeth are larger than usual size.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 7 de 98

1

Supernumerary teeth are formed as a result of hyperplasia of dental lamina.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 8 de 98

1

Fusion of teeth is a developmental disturbance in the:

Selecciona una o más de las siguientes respuestas posibles:

  • Size of teeth

  • Shape of teeth

  • Position of teeth

  • Number of teeth

Explicación

Pregunta 9 de 98

1

Cusp of carabelli is a characteristic morphological anomaly of the:

Selecciona una o más de las siguientes respuestas posibles:

  • first permanent molar

  • first primary molar

  • second permanent molar

  • second primary molar

Explicación

Pregunta 10 de 98

1

The tubercle of Zuckerkandl is a characteristic morphological anomaly of the:

Selecciona una o más de las siguientes respuestas posibles:

  • premolars

  • first primary molar

  • first permanent molar

  • second primary molar

  • second permanent molar

Explicación

Pregunta 11 de 98

1

Dilaceration is:

Selecciona una o más de las siguientes respuestas posibles:

  • abnormal tubercle

  • dental root abnormality

  • angulation or a sharp curve in the root or crown of a formed tooth.

  • fusion of teeth

  • tooth gemination

Explicación

Pregunta 12 de 98

1

microdontia is associated with:

Selecciona una o más de las siguientes respuestas posibles:

  • ectodermal dysplasia

  • gigantism

  • mongolism

  • goltz syndrome

Explicación

Pregunta 13 de 98

1

Hyperdontia is occurs most frequently in:

Selecciona una o más de las siguientes respuestas posibles:

  • primary dentition

  • permanent dentition

  • premolars

  • incisors

Explicación

Pregunta 14 de 98

1

Hyperdontia vera is a condition

Selecciona una o más de las siguientes respuestas posibles:

  • of having supernumerary teeth from other dentition

  • of having formed tooth germ that cannot erupt in the mouth

  • of having supernumerary teeth from the same dentition

  • that occurs as a result of hyperplasia of dental lamina

Explicación

Pregunta 15 de 98

1

most common causes of hypodontia are:

Selecciona una o más de las siguientes respuestas posibles:

  • applied pressure that affects tooth bud

  • tumors

  • chronic intoxication

  • ectodermal dysplasia

Explicación

Pregunta 16 de 98

1

diastema is:

Selecciona una o más de las siguientes respuestas posibles:

  • relatively small deviation in the site of eruption of a tooth

  • the eruption of tooth far from its intended place

  • space between two upper incisors

  • space between any two teeth except for the central incisors.

Explicación

Pregunta 17 de 98

1

Anatropism is:

Selecciona una o más de las siguientes respuestas posibles:

  • turning of a tooth around its longitudinal axis

  • growth of a tooth root in an opposite upward pointing direction

  • condition in which the tooth remains in a position below the occlusal plane off the adjacent teeth

Explicación

Pregunta 18 de 98

1

ankylosis of a tooth is an abnormality in the

Selecciona una o más de las siguientes respuestas posibles:

  • number of the teeth

  • shape of the teeth

  • size of the teeth

  • position of the teeth

Explicación

Pregunta 19 de 98

1

The right combination of statements about tooth impaction is :

1.it results from a failure of a tooth to erupt because of some physical barrier in its path of the eruption or an unusual position.
2.the lack of eruptive force can be the reason for tooth impaction.
3.impacted teeth have a delayed eruption time or are not expected to erupt.
4.caused by trauma.

Selecciona una o más de las siguientes respuestas posibles:

  • 1,2,3

  • 2,3,4

  • 1,2,3,4

  • 1,3,4

Explicación

Pregunta 20 de 98

1

The right combination of statements about the abnormalities in the shape of teeth is:

1.abnormalities may involve the corn, tooth or both
2. abnormalities in the shape include tooth fusion, tooth gemination, dliaceration, abnormal tubercle, root abnormarlities.
3. abnormalities in the shape include microdontia and macrodontia.
4. abnormalities in the shape can be caused by a trauma or inflammation.

Selecciona una o más de las siguientes respuestas posibles:

  • 1 2 3

  • 1 2 4

  • 2 3 4

  • 1 2 3 4

Explicación

Pregunta 21 de 98

1

The right combination of statements about fusion of teeth is:

1. abnormality may involve the crown, root or both
2. fusion of teeth occurs most commonly in primary dentition.
3.fusion of teeth occurs in primary and permanent
4.fusion of teeth arises when 2 teeth develop from 1 tooth bud as a result of an abortive attempt of the single tooth bud to divide
5.the tooth has a single wide crown and 2 separate roots or 2 separate crowns and single large root.

Selecciona una o más de las siguientes respuestas posibles:

  • 1 3 5

  • 2 3 4

  • 2 4 5

  • 1 3 4

Explicación

Pregunta 22 de 98

1

right combination of statements about root abnormalities is:

1. root abnormalities include supernumerary roots, abnormal root angulation, considerably longer or shorter root length than the average length
2. tooth has a single wide crown and two separate roots.
3.there are curved or branched root canals
4.dental radiographs identify abnormal roots

Selecciona una o más de las siguientes respuestas posibles:

  • 1 2 3

  • 2 3 4

  • 1 3 4

  • 1 2 3 4

Explicación

Pregunta 23 de 98

1

the right combination of statements about hypodontia is:

1. condition of presence of a higher than normal number of teeth
2.condition at which the patient has missing teeth as a result of the failure of them teeth to develop
3.only occurs in primary dentition
4.occurs more commonly in permanent dentition
5. absence of the wisdom teeth, upper lateral incisors, and second premolars is relatively common

Selecciona una o más de las siguientes respuestas posibles:

  • 1 2 3

  • 2 4 5

  • 3 4 5

  • 1 2 4

Explicación

Pregunta 24 de 98

1

right combination of statements about anodontia is:

1.describes a condition where the patient is missing up to five permanent teeth
2. found in upper and lower jaw
3.complete lack of teeth development
4. ectodermal dysplasia is a common cause
5.failure of tooth to erupt due to some physical barrier in its path of eruption

Selecciona una o más de las siguientes respuestas posibles:

  • 1 2 3

  • 3 4

  • 3 4 5

  • 2 3 4

Explicación

Pregunta 25 de 98

1

tooth impaction may be cause by factors such as :

1.mechanical obstacle
2. poor nutrition in children
3.malposition of the tooth germ
4. ectodermal dysplasia

Selecciona una o más de las siguientes respuestas posibles:

  • 1 2

  • 2 3

  • 2 4

  • 1 3

Explicación

Pregunta 26 de 98

1

Rellena los espacios en blanco para completar el texto.

abnormalities of teeth are classified according to their causes into:

a.
b.
c.

Explicación

Pregunta 27 de 98

1

Rellena el espacio en blanco para completar el texto.

small addition cusp at the mesiopalatal line angle of the first permanent molar and the second primary molar is called the

Explicación

Pregunta 28 de 98

1

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a pronounced bulge on the medial side in the cervical third of the buccal surface of the first primary molar is called tubercle of

Explicación

Pregunta 29 de 98

1

Rellena el espacio en blanco para completar el texto.

an angulation or a sharp bend or curve in the root or crown of a formed tooth is called

Explicación

Pregunta 30 de 98

1

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supernumerary teeth, smaller than the normal teeth, are with a and are called ''.

Explicación

Pregunta 31 de 98

1

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supernumerary tooth present in the midline of the anterior maxilla between two central incisors is called

Explicación

Pregunta 32 de 98

1

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hyperdontia is divided in two groups
1.
2.

Explicación

Pregunta 33 de 98

1

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hypodontia is divided in two groups
1.
2.

Explicación

Pregunta 34 de 98

1

Rellena los espacios en blanco para completar el texto.

abnormalities in the positions of the teeth are:
1. tooth
2. tooth
3.
4. tooth
5. tooth
6.
7. tooth
8. tooth

Explicación

Pregunta 35 de 98

1

Rellena los espacios en blanco para completar el texto.

Match the abnormalities in the shape of the teeth with their characteristics:
a. fusion of teeth
b. tooth germination
c. abnormal tubercles
d. dilaceration
e. tooth abnormalities

1. these abnormalities include supernumerary roots, abnormal root angulation, considerably longer or shorter tooth length than the average length
2. tooth has one main large crown partially separated with a cleft in its cervical third and a single root
3. fusion may involve the crown, root or both
4. angulation or a sharp bend or curve in the tooth or crown of a formed tooth
5. there are variations in the shape size and number of the tubercles
6. deviation from the normal axis of the apical part of the root by 20 degrees or more /90 degrees/
7. tubercle of carabelli
8. tubercle zuckerkandll
9. tooth has a single wide crown with 2 separate roots
10. it arises when 2 teeth develop from 1 tooth bud as a result of abortive attempt of a single tooth bud to divide
11. tooth has 2 separate crowns and a single large root.

Explicación

Pregunta 36 de 98

1

Rellena los espacios en blanco para completar el texto.

Match the abnormalities in the size of teeth with their characteristics:
a. microdontia
b. macrodontia
1. teeth are larger than normal for that particular type of tooth
2. teeth are smaller than normal for that particular type of tooth
3. teeth are rudimentary in size and form with a peg shaped crown
4. oral manifestation of gigantism
5. oral manifestation of dwarfism
6. genetic disorder
7. oral manifestation of ectodermal dysplasia

Explicación

Pregunta 37 de 98

1

Rellena los espacios en blanco para completar el texto.

match abnormalities in number of teeth with characteristics:

a. hyperdontia
b. hypodontia
c. anadontia
1. teeth may be morphologically similar to or dissimilar in size and shape compared with normal teeth
2. usually affects wisdom teeth and upper lateral incisors
3. condition at which the patient has few missing teeth as a result of the failure of those teeth to develop
4. condition of presence of a tiger than normal number of teeth
5. complete lack of teeth development
6. oral manifestation of ectodermal dysplasia

Explicación

Pregunta 38 de 98

1

Rellena los espacios en blanco para completar el texto.

find the correspondence between the 2 columns:

a. pseudohyperdontia
b.hyperdontia vera
c.pseudohypordontia
d. hypodontia vera

1. oral condition characterised by having a supernumerary teeth from the same dentition
2. oral condition characterised by having a supernumerary teeth from the other mention- extra primary teeth in the permanent mention or extra permanent teeth in the primary dentition
3. abnormality occurs as a result of hyperplasia of dental lamina
4. tooth is prevented from erupting due to some physical barrier in its path of eruption or an unusual position
5. lack of some tooth development
6. pral manifestation of ectodermal dysplasia
7. due to the destruction of thee tooth bud because of some physical factors.

Explicación

Pregunta 39 de 98

1

Rellena los espacios en blanco para completar el texto.

Match the abnormalities in the position of teeth with their characteristics:

a. tooth transposition
b. dystopia/ displacement
c. diastema
d. tooth rotation
e. dens invaginatus
f. anatropism
g. tooth aberration
h. tooth impaction
i. ankylosed teeth
1. tooth is presented from erupting due to some physical barrier in its path of eruption or an unusual position
2. condition of an invagination of calcified layers of tooth into the body of the tooth
3. anomaly where two adjacent teeth have changed their positions in the dental arch
4. tooth erupts in an outward position of the dental arch
5. space between 2 upper incisors
6. growth of tooth root is in complete opposite upward pointed direction
7. tooth is located in its correct position in the dental arch but rooted around longitudinal axis
9. condition of an incomplete eruption of a tooth because of the fusion of cementum with surrounding bone and the retained tooth remains in a position below the occlusal plane of the adjacent teeth
9.toth remains stick in the bone and no tooth movements occur
10. canines and first premolars are most often involved
11. 2 types of abnormality- heterotopia and ectotopia
12. roared teeth are single rooted teeth
13.these teeth have a delayed eruption time
14. it may be sure to a lack of eruptive force

Explicación

Pregunta 40 de 98

1

There are genetic endogenous and exogenous factors in the etiology of dental dysplasia.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 41 de 98

1

Structural abnormalities of teeth occur as a result of disturbance of histogenesis of dental hard tissues during the different stages of tooth development.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 42 de 98

1

Hypoplasia is a disturbance of mineralization which results in a normal process of organic matrix production and an insufficient mineralisation.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 43 de 98

1

Dyschromia refers to an alteration of the colour of a tooth

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 44 de 98

1

Dysplasiae dentales congenitae, involving permanent teeth occur as a result of disease during pregnancy

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 45 de 98

1

Taurodontism occurs in multirooted teeth - permanent molars and premolars

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 46 de 98

1

General diseases in children up to three years of age result in structural abnormalities in permanent teeth

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 47 de 98

1

Dysplasia is

Selecciona una de las siguientes respuestas posibles:

  • root abnormality

  • crown abnormality

  • structural abnormality in the formation of enamel, dentin and cementum

  • abnormalirty in the number of teeth

Explicación

Pregunta 48 de 98

1

Hypoplasia is a result of disturbance of the

Selecciona una de las siguientes respuestas posibles:

  • mineralisation

  • organic matrix formation

  • maturation of dental hard tissues

Explicación

Pregunta 49 de 98

1

Hypomaturation is a result of disturbance of the

Selecciona una de las siguientes respuestas posibles:

  • maturation of hard dental tissues

  • organic matrix formation

  • mineralization

  • pigmentation of tooth

Explicación

Pregunta 50 de 98

1

disturbances that occur between the third and sixth month of pregnancy result in

Selecciona una de las siguientes respuestas posibles:

  • hypomineralisation of primary teeth

  • hypoplasia of permanent teeth

  • hypoplasia of primary teeth

  • hypomaturation

Explicación

Pregunta 51 de 98

1

Disturbances that occur between the sixth and ninth month of pregnancy result in

Selecciona una o más de las siguientes respuestas posibles:

  • hypoplasia of primary teeth

  • hypoplasia of some permanent teeth

  • hypomineralisation of primary teeth

  • hypomaturation

Explicación

Pregunta 52 de 98

1

Inherited disorders of tooth development result from

Selecciona una de las siguientes respuestas posibles:

  • environmental factors

  • genetic mutations

Explicación

Pregunta 53 de 98

1

Characteristics of Amelogenesis imperfecta, hypoplastic type are:

Selecciona una o más de las siguientes respuestas posibles:

  • Abnormal yellow colour of tooth

  • hypomineralised enamel

  • lines, pits and gtooves in the whole enamel surface or in certain areas

  • enamel loss and exposure of underlying dentin

  • inadequate formation of enamel rods without disturbances in the enamel mineralization

Explicación

Pregunta 54 de 98

1

characteristics of amelogenesis imperfecta, hypomaturation type are

Selecciona una o más de las siguientes respuestas posibles:

  • normal enamel thickness

  • enamel loss and exposure of underlying dentin

  • varied degrees of hypomineralisation

  • colour varies from yellow to opaque white

  • usually only one tooth is affected

Explicación

Pregunta 55 de 98

1

characteristics of coronal dentin dysplasia are

Selecciona una o más de las siguientes respuestas posibles:

  • the affected teeth are slightly amber in colour

  • it usually affects primary teeth

  • both primary and permanent dentitions are equally affected

  • reduced number of dentinal tubules with an irregular course

Explicación

Pregunta 56 de 98

1

characteristics of radicular dentin dysplasia are

Selecciona una o más de las siguientes respuestas posibles:

  • it affects only primary teeth

  • it affects both primary and permanent dentitions

  • short, blunted and malformed roots

  • the affected teeth are slightly amber in colour

  • normal colour of teeth

Explicación

Pregunta 57 de 98

1

choose incorrect statement about taurodontism

Selecciona una de las siguientes respuestas posibles:

  • affects permanent premolars and molars

  • affects only primary teeth

  • associated with apical displacement of the furcation area

  • associated with enlargement of pulp chamber

  • associated with chromosome abnormalities

Explicación

Pregunta 58 de 98

1

Characteristics of dysplasiae dentales congenitae are

Selecciona una o más de las siguientes respuestas posibles:

  • it affects only permanent teeth

  • affects primary and some permanent teeth

  • teeth are described as ghost teeth

  • a result of disturbances during pregnance

Explicación

Pregunta 59 de 98

1

the right combination of statements about the congenital hypoplasia of enamel is:
1.all of the primary teeth are affected
2.all of the permanent teeth are affected
3.its a result of diseases during pregnancy
4.the teeth are of normal shape
5.visible defects in enamel are present on eruption of tooth

Selecciona una de las siguientes respuestas posibles:

  • A. 1,2,3

  • B. 1,3,5

  • C. 3,4,5

  • D. 1,2,4,

Explicación

Pregunta 60 de 98

1

the right combination of statements about congenital hypomineralization is:
1. it is a result of disturbances that occur between the sixth and ninth month of pregnance
2. all primary teeth affected
3. all permanent teeth affected
4. defects are located at sites of predilection for caries
5. the teeth are of normal shape, size and colour, whereas enamel tends to wear away from underlying dentin

Selecciona una de las siguientes respuestas posibles:

  • A. 1,2,3

  • B. 2,3,4

  • C. 2,4,5

  • D. 1,2,5

Explicación

Pregunta 61 de 98

1

the right combination of statements about enamel hypoplasia due to congenital syphilis is
1. teeth are of normal shape
2. shape and structure of teeth are irregular
3. the permanent upper incisors have a v-notch on the center of the incisal edge and a tapered shape from the cervix to the incisal edge and appear as screwdrivers/ Hutchinson's teeth
4. pigmentation of teeth
5. an altered crown shape of the first permanent molars with a narrow occlusal table where enamel appears to be arranged in an agglomerate mass of globules

Selecciona una de las siguientes respuestas posibles:

  • A. 1,2,3,

  • B. 2,3,5,

  • C. 3,4,5,

  • D. 2,3,4,

Explicación

Pregunta 62 de 98

1

the right combination of statements about Dental fluorosis is:
1. the origin of dental fluorosis is supposed to be genetic
2. it is an acquired dysplasia of permanent teeth in children who are excessively exposed to high concentrations of fluoridehifher than 1,5 mg/l/ during the first 7 years of life
3. the fluoride ions directly affect ameloblasts
4. the dean index classifies fluorosis in two types
5. the severity od dental flurosis depends on the amount and duration of fluoride exposure anf the age of teh chils

Selecciona una de las siguientes respuestas posibles:

  • A - 2,3,5

  • B - 1,2,3,

  • C- 3,4,5,

  • D - 2,3,4,

Explicación

Pregunta 63 de 98

1

the right combination of statements about turners hypoplasia
1. there are changes in the shape of the tooth crown
2. it is acquired dysplasia
3. there is a colour change of the tooth crown
4. turners hypoplasia is due to disruption in the process of enamel matrix formation
5. turners hypoplasia usually affects only one permanent successor of primary tooth

Selecciona una de las siguientes respuestas posibles:

  • A - 1,2,3

  • B - 2,3,4

  • C - 1,3,4

  • D - 1,2,3,4,5

Explicación

Pregunta 64 de 98

1

Rellena los espacios en blanco para completar el texto.

The factors in the etiology of dental dysplasia are and

Explicación

Pregunta 65 de 98

1

Rellena los espacios en blanco para completar el texto.

3 endogenous factors in the etiology of acquired dental dysplasia: , ,

Explicación

Pregunta 66 de 98

1

Rellena los espacios en blanco para completar el texto.

the affected teeth in a patient with rickets in the first year of life are , and

Explicación

Pregunta 67 de 98

1

Rellena los espacios en blanco para completar el texto.

the classification of dental dysplasia according to etiological factors is , and

Explicación

Pregunta 68 de 98

1

Rellena los espacios en blanco para completar el texto.

types of dysplasiae dentales congenitae are , ,

Explicación

Pregunta 69 de 98

1

the statements about amelogenesis imperfecta that are CORRECT are

Selecciona una o más de las siguientes respuestas posibles:

  • 1- it usually affects only a single or permanent tooth

  • 2- the four main AI types are hypoplastic, hypomaturation, hypocalcified and hypoplastic/hypomaturation

  • 3-it may solely affect enamel or may be an oral manifestation of generalised hereditary diseases

  • 4-it is due to many inherited defects of enamel formation that affect the quantity and quality of enamel

  • 5- it is an autosomal disorder of tooth structure characterized by disturbance of dentin

Explicación

Pregunta 70 de 98

1

the statements about dysplasiae dentales acquisitae that are CORRECT are

Selecciona una o más de las siguientes respuestas posibles:

  • 1- a number of different environmental factors give rise to this condition

  • 2- they affect more often primary teeth

  • 3- they affect primary and permanent

  • 4-they are associiated with distruption in the processs of mineralisation and maturalion and a normal process of organic matric producion of pprimary teeth

  • 5- permanent teeth can be affected by all acquired types of dysplasia- hypoplasia, hypomineralisation, hypomaturation and pigmentation

Explicación

Pregunta 71 de 98

1

Rellena los espacios en blanco para completar el texto.

match the types of amelogenesis imperfecta with their characteristics:
A- hypoplastic type ( , , , )
B- Hypomaturation and hypocalcification ( , , , )

1- soft, rough, opaque white to yellow brown enamel surface
2- hard, yellowish brown enamel surface
3- lines, pits or grooves in the whole thin enamel or certain areas
4- affects all the teeth in primary and permanent
5- teeth erupt with normal size and shape
6- enamel loss and exposure of underlying dentin
7- small teeth, lack proximal contact

Explicación

Pregunta 72 de 98

1

Rellena los espacios en blanco para completar el texto.

Match the type of dentinogenesis imperfecta with their characteristics:
A- coronal dysplasia ( )
B- Radicular (, )
C- Fibrous ( , )
D- Hereditary opalescent dentin ( )
E- Taurodontism ( , )

1- radiodense material of fibrotic dentin found in pulp chamber and canals
2- disorders affect radicular dentin
3- affects primary molars and premolars
4- teeth are of normal shape and colour5
5- affected teeth are amber in colour
6- teeth have normal colour, short, blunted, malformed roots
7- affected teeth are blue-grey
8- enlargement of pulp chamber due to apical displacement of furcation area

Explicación

Pregunta 73 de 98

1

Rellena los espacios en blanco para completar el texto.

match types of dysplasia with their characteristics:
A- Enamel hypoplasia due to congenital syphilis ()
B- dental fluorosis (
C- Turners hypoplasia

1-usually affects only a single permanent successor of primary tooth
2- fluoride ions directly affect ameloblasts
3- crowns of first permanent molars irregular and enamel of occlusal surface arranged in agglomerate mass or globules
4- it is dysplasia of permanent teeth in children who are excessively exposed to high concentration of fluoride
5- hutchinsons teeth

Explicación

Pregunta 74 de 98

1

The structures of the oral cavity work together to maintain the physiological integrity of the oral cavity

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 75 de 98

1

Oral ecology is a science that studies only the interrelationships between organisms in the oral cavity

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 76 de 98

1

Anabolism is the set of metabolic pathways that breaks down molecules into smaller units to release energy

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 77 de 98

1

str. mutans, str. salivarius, str. sanguis are scidogenic bacteria which metabolize the carbohydrates and produce organic acids, which results in a decreased overall pH within the dental plaque

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 78 de 98

1

glycolysis is a main metabolic pathway of carbohydrate metabolism in bacteria

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 79 de 98

1

fungal species make up 98% of the total oral flora during first year of life

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  • VERDADERO
  • FALSO

Explicación

Pregunta 80 de 98

1

The balance of oral microflora can shift due to changes in

Selecciona una o más de las siguientes respuestas posibles:

  • salivary content

  • environmental temp

  • phsyiological status of the patient

  • age of the child

  • genetic info

Explicación

Pregunta 81 de 98

1

The spherical shaped bacteria are called

Selecciona una o más de las siguientes respuestas posibles:

  • cocci

  • bacilli

  • spirilla

  • spirochaetes

Explicación

Pregunta 82 de 98

1

rod- shaped or cylindrical bacteria are called

Selecciona una o más de las siguientes respuestas posibles:

  • cocci

  • bacilli

  • spirochaetes

  • spirilla

Explicación

Pregunta 83 de 98

1

the microorganisms in the oral cavity include

Selecciona una o más de las siguientes respuestas posibles:

  • bacteria

  • ptotozoa

  • fungi

  • all

Explicación

Pregunta 84 de 98

1

entamoeba gingivalis and Trichomonas tenax are

Selecciona una o más de las siguientes respuestas posibles:

  • bacteria

  • fungi

  • protozoa

  • virus

Explicación

Pregunta 85 de 98

1

the characteristics of fungi include

Selecciona una o más de las siguientes respuestas posibles:

  • thick cell wall

  • do not have defined nucleus

  • they are capable of rearing a spawn in the mouth cavity

  • they reproduce by budding

Explicación

Pregunta 86 de 98

1

Gram positive genera are

Selecciona una o más de las siguientes respuestas posibles:

  • streptococcus

  • bacteriodes

  • haemophilius

  • staphylococcus

Explicación

Pregunta 87 de 98

1

the streptococci are most frequently isolated from the

Selecciona una o más de las siguientes respuestas posibles:

  • tongue

  • gingiva

  • carious lesions

  • oral mucosa

Explicación

Pregunta 88 de 98

1

commensalism is

Selecciona una o más de las siguientes respuestas posibles:

  • a class of relationship between two organisms where one organism benefits without affecting the other

  • a class of relationship between two species which interact but do not affect each other

  • a biological phenomenon indicating growth or turning movement of a biological organism, usually a microorganism, in response to a stimulation by drugs

  • a non mutual relationship between organisms of different species where one organism, the parasite, benefits at the expense of the other, the host

Explicación

Pregunta 89 de 98

1

protein synthesis in microorganisms occurs in the

Selecciona una o más de las siguientes respuestas posibles:

  • ribosomes

  • cytoplasm

  • mitochondria

  • nucleus

Explicación

Pregunta 90 de 98

1

bacteria with strong acidogenic abillity are

Selecciona una o más de las siguientes respuestas posibles:

  • streptococcus

  • staphylococcus

  • spirohaetes

  • actynomyes

  • lactobacillus

  • candida

Explicación

Pregunta 91 de 98

1

anaerobic bacteria appear in the oral cavity of a newborn child

Selecciona una o más de las siguientes respuestas posibles:

  • after first year of life

  • after eruption of first teeth

  • after the age of 2

  • after the age of 3

Explicación

Pregunta 92 de 98

1

the bacterial flora of the oral cavity includes
1- streptococcus salivarius
2-entamoeba gingivalis
3-streptococcus mutans
4-fusobacterium
5-candida albicans
6-actinomycetes odontolyticus
7- trichhomonas tenax

Selecciona una o más de las siguientes respuestas posibles:

  • a- 1, 2, 3, 4

  • B- 3, 4, 5, 6

  • c- 4, 5, 6 ,7

  • d- 1,3,4,6

Explicación

Pregunta 93 de 98

1

functions of salivary mucin are:
1- it is responsible for salivary viscocity
2- it is responsible for the transport of iron ions in saliva
3- it coats the mucosal surface and acts as a barrier in preventing bacterial access to the epithelial cells of oral mucosa
4- it slows down the growth of candida

Selecciona una o más de las siguientes respuestas posibles:

  • A/ 1, 3

  • B/ 1,2

  • c/ 3, 4

  • d/ 2, 4

Explicación

Pregunta 94 de 98

1

functions of antimicrobial factors IgM igA igG are:
1- they provide protection of the gums against vacterial invasion
2- they provide rotection of the tooth surface against bacterial infection
3- they are specific antibidoes which are produced in response to specific antigen
4- they simulate the microbial growth

Selecciona una o más de las siguientes respuestas posibles:

  • A/ 1,2

  • B/ 1, 3

  • C/ 3, 4

  • D/ 2,4

Explicación

Pregunta 95 de 98

1

the bacterial virulence factors that maintain oral eubiosis include:
1- adhesion
2- coaggregation
3- adsorption
4- absorption

Selecciona una o más de las siguientes respuestas posibles:

  • A/ 1, 2 , 3

  • B/ 2, 3, 4

  • C/ 1, 2, 4

  • D/ 1, 2, 3, 4

Explicación

Pregunta 96 de 98

1

the exogenous factors that maintain oral eubiosis include:
1- diet
2- salivary flow
3- oral hygiene
4- medication and diseases
5- dental status

Selecciona una o más de las siguientes respuestas posibles:

  • A/ 1, 2 , 5

  • B/ 2, 3 , 4

  • C/ 1, 3 , 4

Explicación

Pregunta 97 de 98

1

Rellena los espacios en blanco para completar el texto.

Match the items from the first column with related items listed in the second column.
A. Bacteria
B. Protozoa
C. Fungi

1- they have double-stranded DNA and a nucleus that is not separate from the rest of the cell by a membrane
2- they range in size from one to several millimetres in length
3- they are capable of rearing a spawn in the mouth cavity
4- they have the ability to move independently
5- they reproduce by budding

Explicación

Pregunta 98 de 98

1

Rellena los espacios en blanco para completar el texto.

match the type of relationship between microorganism with the accurate definition
A. Neutralism -
B. Symbiosis -
C. commensalism -
D. Biotropism-
E. Parasitism-

1- a relationship between two different species in which both benefit from the interaction
2- a class of relationship between two organisms where one organism benefits without affecting the other
3- a non mutual relationship between organisms of different species where one organism, the parasite, benefits at the expense of the other, the host
4- a biological phenomenon, indicating growth or turning movement of a biological organism, microorganism in response to stimulation of drugs
5- a class of relationship between two species which interact but do not affect each other

Explicación

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