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Ortho > AP Problems (Resident) > Flashcards

AP Problems (Resident) Flashcards

1
Q

What is early tx?

A

Either primary or mixed dentition = modify skeletal development (younger kids = more growth potential of jaws), fix minor dental problems before eruption of permanent dentition

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2
Q

What cases benefit from early tx?

A

Transverse problems
Anterior cross bites
Class III cases (growth modification)
Large overjet

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3
Q

Benefits to the pt

A

Improvement/resolution developing malocclusion
Improved pt self esteem/parent satisfaction
Prevent potential trauma
Decrease future extraction of perm. Teeth
Decrease tx time in perm dentition

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4
Q

AP skeletal jaw issues

A

Upper and lower jaws + upper and lower teeth in alveolar processes
Max/mand dental protrusion (bimaxillary protrusion)
Mand dental and alveolar base retrognathia
Max dental and alveolar base prognathsim
Mand dental and alveolar base prognathism
Max dental and alveolar base retrognathia

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5
Q

Tx of skeletal problems in kids

A

When jaw discrepancy in growing pt, you can sometimes modify facial growth to improve skeletal relationship

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6
Q

3 important principles for preadolescent or adolescent child

A
  1. Start growth modification too late, doesn’t work, but start too soon, takes too long (or relapses)
  2. Growth occurs on different timetable for 3 planes of space = transverse —> AP —> vertical
  3. Compliance w tx affected by both stage of maturation and difficultly of doing what doctor want
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7
Q

Anteroposterior facial growth

A

Class II and Class III

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8
Q

2nd plane of growth to finish

A

Mid teen years, some males late teen
Even later for class III pts

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9
Q

Growth until late adolescence

A

Mandibular AP growth finishes after maxillary AP

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10
Q

Class III malocclusion diagnosed

A

Late deciduous or early mixed dentition - growth pattern established in early childhood
Optimal time tx- eruption of upper perm central incisors and 1st permanent molars (~7yrs), before circum-maxillary suture fusion

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11
Q

_____ growth completed before ______ growth

A

Maxilla, mandible

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12
Q

Class II malocclusion with mandibular deficiency

A

Tx timing delayed until late mixed dentition
Greater mandibular growth respawn with functional appliances during pubertal growth period

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13
Q

Class II malocclusion in pt age 6-8

A

Tx may be initiated immediately handle intra arch problems = blocked out canines, narrow arch, risk trauma upper central incisors
Most wait until late mixed dentition to treat pt in one stage

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14
Q

Growth evaluation

A

CVMS
Hand wrist radiographs

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15
Q

CVMS

A

Looking at vertebrae notching
Notching (concavity) = older

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16
Q

Peak growth for CVMS

A

Between CVMS 2 and 3

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17
Q

Class II tendency patients sagittal problems

A

Most frequent AP discrepancy
Max prognathsim, mandibular retorgnathism, combo of two

18
Q

Class II division 1

A

Deepish bite and giant overjet
Usually constricted maxilla
V shaped arch form

19
Q

Class II division II

A

Super deep bite
Retroclined maxillary centrals
Maxillary laterals are proclaimed and mesially tipped

20
Q

Indications for class II deep overbite tx

A

Esthetics, profile, smile
Removing growth inhibition of the mandible (class II div II)
Prevention of long term periodontal damage
Lower incisors into palatal tissue (palatal impingement)

21
Q

Tx modalities class II

A

Inhibit max growth - headgear
Stimulant Mand growth - functions appliance
Appliances to distalize Mx post teeth
Camouflage
Surgery

22
Q

Mixed dentition class II tx

A

Headgear
Functional appliance - herbst, MARA
Class II elastics, Forsus

23
Q

Headgear

A

Cervical pull
High pull
Combination pull

24
Q

Two major components of headgears

A

Intraoral (facebow)
Extra oral (neck strap, chin cup)

25
Q

_______ oral component is what genre all categorizes the type of headgear

A

Extra

26
Q

Extra oral anchorage

A

Permits post movement of teeth in one arch without adversely disturbing the other arch

27
Q

Fixed class II corrector appliances

A

Herbst
Mara
Distal jet
Pendulum

28
Q

Removable class II corrector appliances

A

Bionator
Twin block

29
Q

Class III skeletal dysplasia

A

Strong hereditary component
Low frequency 1-3%
Mandibular hypertropy
Maxillary deficiency
Combo of 2

30
Q

Types of class III

A

Dentoalveolar malrelationship, anterior crossbite, underdeveloped maxilla, overdeveloped mandible

31
Q

Overdeveloped mandible

A

Incisors have to reach for contact
Max incisor tipped labially, mand incisors tipped lingually

32
Q

Treatment modalities class III

A

Dental correction - anterior crossbite
Growth modification
Extraction (camouflage)
Surgery

33
Q

Correction of anterior crossbite

A

Limited braces or an appliance
Lower anterior acrylic splint with incisor guide plane
Hawley type appliance with finger spring and bite plane

34
Q

What is a sign of a good chance of success for correction of anterior crossbite

A

If mandible in CR is edge to edge with maxillary teeth

35
Q

Class III dental

A

Dentoalveolar malrelationship, anterior cross bite, correct early CR Dentoalveolar malrelationship, anterior cross bite, correct early MI

36
Q

AP and vertical maxillary deficiency growth mod Class III

A

Reverse pull headgear/ protraction face mask therapy
Indications - max skeletal Retrusion, max dentoalveolar Retrusion, decrease lower anterior facial height

37
Q

Kids who are growing dentally and or skeletal lay class II or class III should see an ortho by age ____

A

7

38
Q

Class III growth mod is most effective between

A

Ages 7-9

39
Q

Class II growth mod must coincide with pubertal growth spurt around age

A

11-13

40
Q

We sometimes treat class II early if

A

Psychosocial issues
Trauma risk

Ortho (19 decks)

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