Orthodontics I - Lab Final

Convex profile

What profile does this patient have?

Yes

Is the patient symmetric?

Yes

Does she have lip competence?

(Translation: do her lips comfortably touch at rest?)

Yes

Does she have a consonant smile?

Class II, Division 2

What type of malocclusion does she have?

No

Does she have transverse discrepancy?

(Translation: does she have a posterior or buccal crossbite?)

Over-eruption of incisors and/or the under-eruption of the posterior teeth

What could have caused her deep overbite?

They would flare/labialize

If you were to align the maxillary teeth, what would happen to the maxillary incisors?

Straight

Facial profile?

Fairly symmetric (within the range of normal)

Is the patient symmetric?

No

Does she have procumbent lips?

(Translation: are her lips sticking out?)

No

Does she have a consonant smile?

Class I malocclusion

What type of malocclusion does she have?

No

(but she does have a sagittal discrepancy, i.e. an anterior crossbite)

Does she have any transverse discrepancy?

Severe crowding

Does she have crowding? If she does, how would you describe it?

Class II, Subdivision Right

(On the left, she is Class I. On the right, she is Class II. "Class II, Subdivision Right" describes this.)

What type of malocclusion does this patient have?

Premature loss of a molar, which might have caused the shift on just the one side

What might have caused her malocclusion?

Convex

Facial profile?

No

She is not a Class I molar relation, and she only has 4 mm of crowding

There is a procedure called "serial extraction," which is done if the patient has more than 8 mm of crowding and is Class I molar relation. Let's say we do a mixed dentition analysis and find that this patient has 4 mm of crowding.

Should we do serial extraction on her?

Straight

Facial profile?

Class III

What type of malocclusion does this patient have?

No

Is there a transverse discrepancy?

No

Is there a vertical discrepancy?

Straight

Facial profile?

Class III

What kind of malocclusion does this patient have?

Yes

On the canines

Is there a transverse discrepancy?

The maxillary primary canines are constricted

What is the etiology of this patient's malocclusion?

Mesial step --> most likely will become Class III

What terminal plane does this patient have, and what kind of malocclusion will it become?

Class I

What kind of dental maocclusion does this patient have?

Serial extraction

The patient does not have congenitally missing teeth and has 9 mm of crowding. He has Class I molar relation. What is the tx?

Distal step --> will likely become Class II

What terminal plane does this patient have, and what kind of malocclusion will it become?

Premolar #13 (unerupted in pano) is more tilted than the opposing side (#4), which indicates an ectopic eruption pattern.

(Primary teeth w/o resorbing roots is also present)

What abnormalities/concerns do you see in this pano?

Third molars and mandibular right second premolar

Are there any congenitally missing teeth in the maxillary arch?

#29 (mandibular right second premolar)

Are there any congenitally missing teeth in the mandibular arch?

mandibular right second molar

Are there any retained primary teeth?

maxillary canines

Are there any impacted teeth?

Yes

Is there crowding?

More or less

Are the condyles symmetrical?

Maybe?

Is there any pathology?

Yes

Are there any ankylosed primary teeth?

No, just one in an odd position

Is there any ectopic eruption?

No

Are there supernumerary teeth?

Right primary canine

Are there retained primary teeth?

Yes

Are there any impacted teeth?

Yes

Are the condyles symmetrical?

Yes

Is there a dilacerated root?

No

The mandibular left side has normal premolar/canine eruption, but the rigth side is abnormal.

Is the eruption pattern of this patient normal or not?

No

Are there any supernumerary teeth?

No

Are there any retained primary teeth?

Not at this stage

Are there impacted teeth?

Yes, within the range of normal

Symmetric condyles?

Yes - maxillary first molar

Dilacerated roots?

Yes - laterals

Are there congentially missing teeth in the maxillary arch?

Yes - an incisor

Are there congenitally missing teeth in the mandibular arch?

No

Are there any supernumerary teeth?

Yes - upper right near the premolar

Are there any retained primary teeth?

No

Any impacted teeth?

Can't see, so can't say

Symmetric condyles?

Yes - #2, also #27?

Dilacerated roots?

No

Are there congenitally missing teeth in the maxillary arch?

No

Are there congentially missing teeth in the mandibular arch?

No

Any supernumerary teeth?

Yes - mandibular second molars

Any impacted teeth?

Yes

Are the condyles symmetrical?

Maybe in the upper molars

Are there any dilacerated roots?

No

Are there congenitally missing teeth in the mandibular arch?

No

Are there congenitally missing teeth in the maxillary arch?

No

Are there any supernumerary teeth?

No

Are there retained primary teeth?

A little bit

Is there crowding?

Yes

Are the condyles symmetrical?

No

Is there any pathology?

Possibly #20

Are there any dilacerated roots?

Class II skeletal (very light)

What type of skeletal malocclusion is this patient?

Hypodivergent

Are the hyper-, hypo-, o normo- divergent?

proclined

Maxillary incisors are?

Class II

What type of skeletal malocclusion is this patient?

Hyperdivergent

Are the hyper-, hypo-, o normo- divergent?

Class I

What type of skeletal malocclusion is this patient?

Normodivergent

Are the hyper-, hypo-, o normo- divergent?

Class II

What type of skeletal malocclusion is this patient?

Hypodivergent

Are the hyper-, hypo-, o normo- divergent?

No

Are the maxillary incisors proclined/flared?