intro lecture 2 Flashcards
Interceptive orthodontics timing
- Not a prolonged treatment!
- Start at the appropriate time
- Correct the issue and observe until comprehensive treatment can be initiated
Interceptive Treatments
- Space maintenance
Interceptive treatment
- Correction
- Limited bracketing can help in
correcting poor inclination of
incisors.
Minor tooth
movement in
the adult tx’s
- Invisalign
- In house aligners
Interdisciplinary care
- Optimize spacing
- Create a functional occlusal plane
- Minor tooth movement
How did Proffitt and Akerman improved the Angle classification?
Three dimensions of space
* Anteroposterior
* Vertical
* Transverse
Time: Growth or aging
Antero-posterior
Dimension
The one most researched as Dr Angle only defined malocclusions in this plane of space.
(sagittal)
* Follow angle’s principles
* Classification of the molar
relationship
* “Classify the canine relationship”
- Overjet in AP plane
- Etiologies:
- Skeletal: Involve one or 2 jaws
- Dentoalveolar ( dental): nvolve upper and or lower incisors
- Positive overjet
- Negative overjet
overjet scale
- 0mm : End to end occlusion
- 2mm : Normal overjet
- 4mm : Light overjet
- 6mm : Moderate overjet
- 8mm : Severe overjet
- 10mm: Excessive overjet
*
verical deminsion seen as:
Overbite
Overbite
Amount of coverage of the lower incisor crown by
the upper incisor in maximum interdigitation (percentage)
normal overbite %
20
openbites
no overbite present
Transverse Dimension:
According to Proffit, ?% of adult patients present with a transverse discrepancy
- Width of the arch
- Arch form
- According to Proffit,30% of adult patients present with a transverse discrepancy
sqaure arch
narrowed and tapered arch
