Crowding

May 6, 2017 by in Orthodontics Comments Off on Crowding

PERIODONTAL IMPLICATIONS When we are resolving crowding we have to take into account the patient’s periodontal condition. A short list of things to consider are as follows: Tissue type —…

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Vertical

May 6, 2017 by in Orthodontics Comments Off on Vertical

Let’s examine each of these separately: Incisal display — intrusion of the upper anterior teeth would be in- dicated in deep-bite cases with super-eruption of the upper incisors, but would…

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Spacing

May 6, 2017 by in Orthodontics Comments Off on Spacing

Tipping is an “Invisalign free ride”. Since orthodontic forces are ap- plied to the crowns of teeth — a distance away from the center of rota- tion — teeth orthodontically…

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Attachments

May 6, 2017 by in Orthodontics Comments Off on Attachments

The aligner shape is activated, which means it changes at each stage to maintain the force system at the appropriate levels — and they work quite well. This is the…

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of Invisalign Treatment Planning

May 6, 2017 by in Orthodontics Comments Off on of Invisalign Treatment Planning

INVISALIGN FUNDAMENTAL PRINCIPLES So let’s start with the actual principles and then slowly describe and define what I mean by them. The basic fundamental principles of using Invisalign are as…

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and Staging

May 6, 2017 by in Orthodontics Comments Off on and Staging

To explain: Round Trip to Stage — round tripping, temporary proclination of the upper or lower incisors is a useful technique to improve access for IPR. In many cases, it…

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Transverse

May 6, 2017 by in Orthodontics Comments Off on Transverse

A case like Gilbert’s would benefit from dental expansion. However, when you prescribe dental expansion you have to think about how the teeth are expanding. With Invisalign treatment, the default…

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and Overcorrection

May 6, 2017 by in Orthodontics Comments Off on and Overcorrection

The question is: If the patient were wearing straight-wire applianc- es, why would we need to over-engineer the arch wire? We all learn as orthodontists that this arch-wire shape produces…

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Troubleshooting

May 6, 2017 by in Orthodontics Comments Off on Troubleshooting

NON-TRACKING IN ABSOLUTE EXTRUSION 4 — TRIANGLE ELASTICS Extruding high canines with aligners can be unpredictable. A tech- nique I frequently use is elastic-assisted extrusion. A button cutout is placed…

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