ORTHO Flashcards

1
Q

Max Incisor in extreme labioversion

A

Class II div I

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2
Q

Max incisor palatally and in retruded position

Proclined lat incisors

A

Class II div II

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3
Q

Class III malocclusion types

A

Edge to edge
Ant crowding
Ant crossbite

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4
Q

Premature loss of Primary C what appliance

A

LHA with spurs

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5
Q

Ant crossbite aka

A

Negative crossbite

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6
Q

Common malocclusion

A

Class I malocclusion

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7
Q

Bimax protrusion is classified under what malocclusion

A

Class I type VI

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8
Q

Signs of incipient malocclusion (3)

A

Lack of interdental spacing in primary dent
Ant crowding of perm I in mixed dent
Premature loss of primary C

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9
Q

Start of mixed dent

A

6 years old

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10
Q

End of mixed dent

A

12 yrs old

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11
Q

Normal eruption of max teeth.

Mand teeth???

A

61245378

61234578

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12
Q

Permanent teeth erupts in what direction

A

Occlusally facially

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13
Q

Which surf of deciduous teeth resorbs first when perk teeth erupts

A

Lingual surface

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14
Q

In rel to deciduous what is the loc of perm Incisors

A

Apical and lingual

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15
Q

Letter that has closest speaking space

A

S

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16
Q

Cord that follows permanent teeth

A

Gubernacular cord

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17
Q

S and Z letters are called

A

Sibilants

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18
Q

Assoc malocclusion of S and Z

A

Ant open bite

Large gap bet I

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19
Q

T and D aka

A

Liguodental sounds

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20
Q

T and D assoc malocclusion

A

Irregular I (Lingual position of max I)

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21
Q

F and V aka

A

Fricative sounds

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22
Q

F and V associated malocclusion

A

Skeletal class III

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23
Q

B P M aka

A

Bilabial sounds

24
Q

When does tooth have apical closure

A

Add 2 to 3 years

Pag pinapili 3 yrs

25
Q

Ratio to get facial type

A

Glabella to chin / bizygomatic width

26
Q

What is the poor man’s cephalometrics

A

Facial profile analysis

27
Q

Skeletal class II is concave or convex

A

Convex!!!

28
Q

Ratioor proportion of mand and mx tooth

Estimate overbite and overjet

A

Bolton’s analysis

29
Q

Determine if crowding is due to inadequate APICAL BASES

A

Howe’s analysis

30
Q

Facial profile analysis points pointed (3)

A

Glabella
Subnasale
Tip of chin

31
Q

FL>MD = broader contact areas which will result in more stable

A

Peck and peck

32
Q

Highest point in the concavity behind OCCIPITAL CONDYLE

A

Bolton

33
Q

Most forward and highest point of anterior margin of foramen magnum

A

Basion

34
Q

Point of intersection of the contour of the post cranial base and post contour of condylar process

A

Articulare

35
Q

Junction of frontal and nasal bone

A

Nasion

36
Q

Most sup margin of ext auditory canal

A

Porion

37
Q

Midpt of sella turcica

A

Sella

38
Q

Most inf portion of orbit

A

Orbitale

39
Q

Innermost point on contour of premax bet incisors and ANS

A

Point A

40
Q

Point A aka

A

Subspinale

41
Q

Innermost point of contour of mandible bet incisors and bony chin

A

Point B aka SUBMENTALE

42
Q

Most ant portion of contour of chin

A

Pogonion

43
Q

Most inf part of mand symphysis

A

Menton

44
Q

Lowest most post point on mandible with teeth in occlusion

A

Gonion

45
Q

Most stable landmark in ceph

A

Sella

46
Q

Point bet pogonion and menton

A

Gnathion

47
Q

Porion to orbitale forms what plane

A

Frankfurt horizontal plane

48
Q

Nasion to sella forms what plane

A

Sella nasion plate

49
Q

Nasion to pogonion forms what plane

A

Facial plane

50
Q

Menton to gonion forms what plane

A

Mandibular plane

51
Q

Plane representing ANT CRANIAL BASE (2)

A

Frankfurt horizontal plane

Sella nasion plane (BOARDS)

52
Q

Steep mandibular plane angle means

A

Longer vert dimension
Ant open bite
Class II

53
Q

Flat mandibular plane means

A

Short ant fa vert dimension
Deep bite
Class III

54
Q

Normal range of ANB

A

0-5 degrees

55
Q

ANB higher range ______ class 2 or 3

A

Skeletal class II

56
Q

Lower ANB means class 2 or 3

A

Class III