D680: Malocclusion Competency

Bionator:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

Class II

Removable

Functional (growth modification)

Activator:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

Class II

Removable

Functional

Twin Block:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

Class II

Removable

Functional

Frankel (FR II):

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

Class II

Removable

Functional (FR= functional regulator)

Schwartz Appliance:

-Fixed/Removable?

-Functional/Space maintenance?

Class not specified

Removable (removable expander)

Expander

Reverse Pull Facemask/Headgear:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

class III

removable

Functional

Cervical Pull Headgear:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

Class II

Removable

Functional

MARA:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

Class II

Fixed

Functional

Herbst Appliance:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

Class II

Fixed

Functional

High Pull Headgear:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

Class II

Removable

Functional

Frankel III:

- Class II/III?

-Fixed/Removable?

-Functional/Space maintenance?

- Class III

- Removable

- Functional

ALL space maintainers are ______.

A. fixed

B. removable

A. fixed

Herbst and MARA are indicated for:

A. class II

B. class III

A.

T/F: all three class III functional (growth modifiers) are removable

true

(reverse pull facemask, frankel III, chin cup)

Class III elastics are placed from the ______ first molar to the _____ canine

maxillary; mandibular

Class III elastics are placed from the maxillary _____ _____ to the mandibular _____

first molar; canine

Class ____ elastics are placed from the maxillary first molar to the mandibular canine

III

What are the three main space maintainers used in orthodontics?

band and loop (picture)

lingual arch

nance appliance

T/F: all headgear is removable

true

High pull headgear is useful for ____ faces, while cervical pull headgear is useful for a _____ lower facial third.

longer; decreased

Class II division 1 has a Class II molar relationship with an ____ overjet and ____ maxillary central incisors

A. decreased; flared

B. increased; flared

C. decreased; retroclined

D. increased; upright

B.

overbite can vary

Class II division II has a Class II molar relationship with an ____ overbite and ____ maxillary central incisors

A. deeper; upright/retroclined

B. deeper; upright only

C. deeper; retroclined only

A

deeper overbite/upright centrals

retroclined is possible

Class II Division I = increased _____

Class II Division II = deeper ____

overjet

overbite

Class II division 1 vs division 2 in terms of overjet

excessive class 1

reduced class 2

fill in the following: neutrocclusion, mesioclusion, distocclusion

Class 1 = ______

Class 2= ______

Class 3= ____

class 1= neutrocclusion

class 2= distocclusion

class 3= mesiocclusion

Molar classification is based on the _____ cusp of the maxillary first molar and the ____ ____ of the mandibular first molar.

mesiobuccal; mesial groove

Molar classification is based on the mesiobuccal cusp of the _____ first molar and the mesial groove of the _____ first molar.

maxillary; mandibular

Maxillary first molar's mesiobuccal cusp is in the mandibular first's mesial groove:

A. Class I

B. Class II

C. Class III

A.

What are the five MAIN common fixed orthodontic appliances or space maintainers?

herbst, mara= class II fixed functional appliance

nance, band and loop, lingual arch = space maintainers

also: pendex, distal jet, expanders (not schwartz), quad helix (not space maintainers, functional appliances)

Molar relationship/malocclusion?

Class I malocclusion

Molar relationship/malocclusion?

Class II Division 1

Molar relationship/malocclusion?

Class III

Molar relationship/malocclusion?

Class II division 1

Molar relationship/malocclusion?

Class II division 1

Malocclusion/molar relationship?

Class II division 2

Molar relationship/malocclusion?

Class II division 1

Molar relationship/malocclusion?

Class II division 2

Molar relationship/malocclusion?

Class II division 1

Molar relationship/malocclusion?

Class I malocclusion

Molar relationship/malocclusion?

Class I occlusion

Molar relationship/malocclusion?

Class III

Molar relationship/malocclusion?

Class II division 2