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Dentistry Board Exam Reviewer > Orthodontics-Pediatric > Flashcards

Orthodontics-Pediatric Flashcards

(95 cards)

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1
Q

The “V’ principle of growth is best illustrated by the?

A

mandibular ramus

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2
Q

The difference between mesiodistal width of cde and 345 refers to the?

A

nance leeway space

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3
Q

if the mesiobuccal cusp of the MX 1st molar is located distal to the mesiobuccal groove of the MANDI 1st molar. The malocclusion present is?

A

Class III

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4
Q

Acc. to simon’s classification of malocclusion supraeruption of maxillary canine is an example of?

A

Abstraction

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5
Q

Measured from the distal aspect of the second primary molar (Mesial aspect of the first permanent molar) on one side and around the arch to the distal aspect of the second primary molar on the other side?

A

Arch perimeter

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6
Q

Child is shouting and crying during a restorative treatment. The child based on his behavior id classified as? (frankl)

A

frankl 1

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7
Q

The most accepted and widely used classification system of malocclusion is?

A

Angle’s Classification

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8
Q

The ideal wire in orthodontics must have which of the following properties?

A

high strength, low stiffness, high range and high formability

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9
Q

The crown of primary teeth begin to calcify between?

A

3.5 to 6 months in utero

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10
Q

A 10-year-old has 4 teeth that is in crossbite. Palatal expander is used to treat his condition.

A

After activation of the appliance it must remain in the mouth for 3 months or more

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11
Q

Stainless Steel Wire used in fixed appliances are composed of?

A

8% nickel - 18% chromium

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12
Q

Using Clark’s rule, compute dose the dose of the drug for a pediatric patient who weighs 30lbs. The adult dose of the drug is 30mg. What is the dose for the patient?

A

6mg

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13
Q

At age 0-5, Which has grown the most at 85%?

A

neurocranium

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14
Q

The treatment option contraindicated in patients who are not able to breathe nasally?

A

nitrous oxide & oxygen inhalation

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15
Q

If a child’s teeth do not form, this would primarily affect the growth of the?

A

Alveolar bone

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16
Q

Precise bite/jaw relationship is not yet seen or establish at birth because of?

A

Immaturity of neuromascular control
Ill-defined eminentia articularis
absence of teeth

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17
Q

Initial sign of adult swallowing is usually seen in what age?

A

18 months

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18
Q

delayed development in the milestone of social behavior solitary play and withdrawal from other people, absence of eye contact, rote and compulsive behavior which if interrupted may provide temper tantrums are characteristics of?

A

Autism

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19
Q

A light bluish, dome-shaped lesion on the inside lip of a 2-year-old is most likely a?

A

mucocele

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20
Q

Crowding that occurs with mandibular incisors after age 18 is most often the result of?

A

physiologic maturational change

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21
Q

few days after direct pulp capping of tooth #74 of a 4-year-old patient . The patient complains of pain, the next treatment is to?

A

Pulpectomy

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22
Q

These are present at birth, having appeared as normal part of prenatal maturation of the neuromusculature.

A

Unconditional Reflexes

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23
Q

If a primary tooth has been extracted before the succedaneous tooth has begun eruptive movement, Its eruption will be?

A

Delayed

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24
Q

A class II Cleft palate Involves? (structures)

A

Hard and Soft palate

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25
The 1st permanent molars commonly erupts when a child is about?
5 to 6 years old
26
In infant oral care, clean the mouth with gauze after feedings and bed time done during? (months)
0-6 months
27
May cause extrusion of the maxillary first molars which can cause an open bite. What type of headgear?
Cervical-Pull Headgear
28
Indirect pulp treatment is a procedure performed in a tooth with?
A deep carious lesion adjacent to the pulp
29
Frankfurt horizontal plane is formed by the union of which cephalometric landmark?
Porion and orbitale
30
A patient present a class II molar relationship his ANB angle is 4. What type of malocclusion?
The child has class II dental malocclusion
31
Induce formation of apical closure of young permanent molar using CAOH
Apexification
32
A child who is reluctant to accept treatment exhibit negative attitude, but not so pronounced is classified under frankl?
Frankl 2
33
Increase in lower intercanine width is due to?
Dental tipping of canine into the primate spaces during eruption of permanent incisors
34
Angle's Class I occlusion represent ___% of the population. Angle's class II occlusion represent ___% while Angle's class III occlusion represent the remainder.
70% ; 25%
35
Space differential between combine width of CDE and 345 is?
positive
36
Is a condition that is very contagious for children?
Acute herpetic gingivostomatitis
37
Condition is appropriately treated at an early age?
Posterior crossbite with a functional shift
38
Transillumination of soft tissues is useful in detecting problems in a child.
Sialolithiasis
39
Severe crowded mandibular incisor usually result from?
tooth size-arch length discrepancy
40
ANB of 2-5 degrees. What classification of malocclusion?
class III
41
Related to occipital anchorage
extra-oral force
42
Space maintainers of choice for a 4-year-old. Patient who had his tooth #85 extracted
Distal shoe
43
When force is applied, bone reflexes that produces deformation of crystalline materials and allows flow of electric current necessary for tooth movement:
Piezoelectricity
44
Anodontia diagnosed in a 5-year-old child primary affects the growth of the?
Alveolar bone
45
When doing Serial extraction the proper sequence to follow is?
CD4
46
It is a measure taken at the midline from a point midway between the central incisor to a tangent touching the distal surface of the 2nd primary molar or the mesial surface of the 1st permanent molar
Arch Length
47
The least desirable method used in child management?
Gift before treatment
48
Gonion, menton and pogonion are cephalometric landmarks located on the?
mandible
49
Space maintainers for a 6-year-old patient with early loss of a #75 whose permanent mindibular incisors are not yet erupted?
band and loop
50
If a 7-year-old patient loses a primary mandi canine about the same time the adjacent lateral incisors is erupting or shortly. Thereafter, the dentist should be alert to the possible of?
lingual collapse of mandibular anterior teeth
51
Syndrome demonstrate microdontia
Hemifacial microsomia down syndrome ectodermal dysplasia
52
In managing a 7-year-old child the dentist should keep in mind that a child this age is?
Susceptible to praise
53
The most common ankylosed primary tooth is the?
mandibular 1st molar or MANDI D
54
Classic symptoms of a sucking habit?
Anterior open bite cross bite expanded maxillary arch retroclination of the mandibular incisors A class II malocclusion
55
It is the most difficult orthodontic tooth movement to achieve
Intrusion and Translation
56
Spacing of incisors at age 7-9 year old (ugly duckling stage)
Should be left undisturbed; Let nature take is course
57
A 5-year-old boy who lives in an area where fluoride content of the drinking water averages 0.75ppm should be supplemented with how much fluoride per day?
0mg
58
it is the initial line of treatment for a 3-year-old patient with a thumbsuking habit
Observe
59
Commonly the primary teeth erupt in which sequence?
ABDCE
60
A 4-year-old has a traumatized central incisor with a class III (ellis) fracture. The injury occurred about one month ago and examination indicates that the pulp is necrotic and there is periapical lesion. Treatment of choice is?
Endodontic treatment and root canal filling with a resorbable paste
61
It is the undesirable consequence for up righting a mandibular first molar with a loop lingual arch?
FLARING OF INCISORS
62
Fluoride lethal dose (mglkg) for children?
15 mglkg
63
Arch shape & symmetry are best evaluated from the?
STUDY CAST
64
An 18-year old patient presents back to you complaining of crowding of his lower anterior incisors. You explain that this is because of?
LATE MANDIBULAR GROWTH
65
A type of tipping movement where in the Apex of the tooth is fixed as the crown is being tipped labially.
CONTROLLED TIPPING
66
Children who receive an inferior alveolar injection may bite the lip, tongue, and inner surface of the cheek. The resulting ulceration is known as?
TRAUMATIC ULCER
67
The most Common cause of sinus tract in original tissues of children is?
CHRONIC PERIAPICAL ABSCESS
68
Serial extraction is done if the space deficiency of a patient is ____ mm?
8 mm
69
A bimaxillary protrusion occurs when?
BOTH DENTAL ARCHES ARE FORWARD WITH RESPECT TO BASAL BONE
70
A post orthodontic circumferential supracrestal fiberotomy procedure is indicated when?
PREVENTION OF RELAPSE AFTER ROTATIONAL MOVEMENTS IS DESIRED
71
A kind of non-pharmacologic behavioural management technique wherein the dentist explains the procedure and demonstrates it before performing it directly to the child.
TELL-SHOW-DO
72
A child in long-term remission of acute leukaemia has dental problems characterized by usual susceptibility to?
ORAL INFECTION
73
It is the primary reason why we restore the proximal surfaces of deciduous teeth to its original MD dimension
MAINTENANCE OF ARCH LENGTH
74
Conditions if usually present in a class II division 2 malocclusion?
LINGUAL INCLINATION OF MAXILLARY CENTRAL INCISORS
75
Your patient has an IQ of 51, It means the patient has?
MILD MENTAL RETARDATION
76
Cause of skeletal class III malocclusion?
MANDIBULAR OVERGROWTH
77
Normal value of ANB
0 to 5
78
On the first dental visit, the basic fear of a child under the age of 2 is related to?
ANXIETY OVERBEING SEPARATED FROM A PARENT
79
A 3-year old patient comes into your clinic for a routine dental check up. you observed that the child has a habit of moving the mandible anteriorly creating an anterior crossbite. This is an example of?
PSEUDOCLASS III
80
In young children, paradoxical excitement occurs most frequently following premedication with?
NITROUS OXIDE
81
How much expansion is produced per quarter turn of an expansion screw?
0.25 MM
82
It is the common sequence of eruption of the maxillary teeth.
61245378
83
Dental fluorosis is most likely to occur on a?
TWO-YEAR-OLD INGESTING 1PPM OF FLUORIDE
84
The MB groove of the mandibular 1st molars are located distal to the MB cusp and the maxillary central incisors are in extreme labioversion. The malocclusion is?
CLASS II DIVISION 1
85
A "poorman's" ceephalometric analysis is performed via?
FACIAL PROFILE ANALYSIS
86
____ Is the bedrock strategy on which all of pediatric dental behaviour management rests.
TELL-SHOW-DO
87
During the treatment of a patient with a class II malocclusion overjet is observed to be increasing. What is the possible cause?
DIRECTION OF THE FORCES APPLIED
88
Method by which a rectangular arch wire is inserted into the bracket.
EDGEWISE
89
The normal SNA is around 82.5 degrees. A patient with and SNA of 92.5 degrees indicates the HE/SHE HAS?
MAXILLARY PROTRUSION
90
Eupaemism or word substitute for rubber dam.
RAINCOAT
91
Young's rule for computing child's dose uses.
AGE IN YEARS
92
This is considered as the most unique tooth in the dental arch because it does not resemble any other teeth.
PRIMARY MANDIBULAR FIRST MOLAR
93
A maxillary lateral incisor that is erupting is observed to be lingually locked between the central incisor and canine. Which of the following is the best treatment of choice?
REFER TO AN ORTHODONTIST
94
The cranial vault increases rapidly in size the first few years postnatally and completes approximately 90% of its growth by 6 years of age. This growth is typical of which of the following types of tissues?
NEURAL
95
A patient presents to your office claiming that they have "Long face syndrome" based on what he learned on webbDS.com. The man has obvious mouth breathing as noted by your morning patient who sat next to a man in the waiting room. What malocllusion are you immediately thinking that the patient has?
SKELETAL OPEN BITE

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