Invisalign Clincheck Explained

10March 2020

Invisalign Clincheck Explained

There is a debate amongst Invisalign educators as to the orientation of the bevel for optimal predictability of absolute extrusion of incisors.One school of thought contends that the bevel should be oriented towards the incisal edge, resulting in a large “ledge” at the gingival aspect of the attachment. This ledge, the thinking goes, provides maximum grip for the aligner and provides the best opportunity to gain absolute extrusion.

This rationale makes sense, but there’s a problem. The interface between the ledge of the attachment and the aligner is not very forgiving if the tooth begins to get off track and goes into “failure mode.” If this occurs, even slightly, the aligner will not fit properly over the attachment and may even begin to exert an unwanted lingual force. Unwanted lingual forces are bad, and may lead to the opposite of the desired tooth movement, meaning intrusion rather than extrusion.

“I believe the new ClinCheck In-face Visualisation tool can help general
dentists in their efforts to better guide those patients at the beginning of a very important journey towards their new smile.”

Invisalign Clincheck Timeline

Generally speaking, even if some of your teeth have had some type of
dental restoration placed (like a crown, veneer or filling), your dentist should still be able to bond an attachment to them. Although, some types of restorations pose more of a challenge than others.

As part of the Invisalign system Align`s ClinCheck software provides
practitioners with precise predictive 3D imaging of tooth movements from
start to finish of their patients’ orthodontic treatment, and now, with
the added benefit of the “In-face” Visualisation software, ClinCheck
allows dentists to customise treatment plans in harmony with the
patient’s features, making the visualisation more natural.

As for the rest of the 3D Controls, when you make an arch modification
on the 3D model, all other teeth in the adjusted arch will automatically
adjust in response, and comments will be automatically generated in the
Comments tab invisalign cost.

Invisalign Clincheck Blue Line

Have you ever encountered a situation where you want to intrude UR1 UL1?
You set up your ClinCheck to achieve this movement, but clinically you
notice that there is gapping (non-tracking) at the level of the maxillary lateral incisors.

Your first instinct may be to consider a bootstrap elastic on the laterals to pull them back into the aligner, because it appears the laterals are not tracking. If we analyze this situation more closely, it’s not the laterals that are not tracking; it’s the centrals.

Why? Imagine each aligner stage intruding the upper centrals .25 mm per tray. What happens if the centrals don’t intrude? The aligner, when seated, will first contact the incisal edges of the upper centrals, and will not allow full seating of the tray on the adjacent laterals.

Clinically, this appears to be lateral non-tracking, but the real culprit is lack of intrusion of the centrals—it’s the centrals not tracking! To reduce the chances of this occurring, place the same attachment as described in Commandment #6, a 4 mm wide gingivally beveled rectangular attachment on the upper laterals to support the intrusion of the centrals.

These attachments provide anchorage to keep the aligners engaged on the teeth and transmit the intrusion forces appropriately to the centrals.

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