UPRIGHTING MOLARS

The excessive inclination of mandibular molars is one of the most frequent malocclusions in adults. The root spring can solve this problem with great speed and efficiency. Learn how to make a root spring in this video.
To learn more about Orthodontic Biomechanics, enjoy our online course:
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[@shmema12]

thanks

[@minhhop3208]

Thanks for sharing ! But, it hard to understand if there is no verbal explanation !!!!!

[@essentialbiomechanics9381]

Thanks for your suggestion Dr. I started this SELF-EXPLANATORY videos to help people see and understand the power of Biomechanics. I agree that for a full comprehension and application of the mechanics a verbal explanation is indicated. For this purpose, I've just launched my Online Workshop on Biomechanics - I hope you enjoy it! More details here: payhip.com/b/4Wa70

[@kevinkumar2]

What is the time duration of this transpalatal arch? For Molar Derotation?

[@emempotmendez87]

I have my molars upper and lower bent… and I was advised to do my ortho first then do implants on the missing molars… it’s a long way for me… 😑

[@essentialbiomechanics9381]

Not too long with a good mechanics dear. 😉

[@emempotmendez87]

@@essentialbiomechanics9381 ohhh… yeah, the implant doctor said more or less 1yr for ortho

[@advaitchoudhary5585]

Same problem I am having second molar tilted inward and mesially how can It upright by mini implant or it can be upright simply by thiscmethod

[@haris5665]

How can we know if only moments are acting in trial activation?

[@essentialbiomechanics9381]

In the trial activation, we apply gentle couples (as shown in the video)....and then you check if the parallelism between the appliance and the tube occur exactly at the tube level - in this case, there will be only moments acting. If during trial activation you observe that the parallelism occur when the appliance is below the tube, there will be an intrusive force on this unit. On the other hand, if the parallelism occur when the appliance is above the tube, there will be an extrusive force on this unit.

[@haris5665]

@@essentialbiomechanics9381 thanks ❤️

[@grvgpt86]

Anu text where we can read and understand the mechanics better

[@essentialbiomechanics9381]

Here we can find my new book Dr, with hundreds of detailed diagrams. payhip.com/b/KIEpP

[@sharvin5436]

hi dr, instead of using crosstube, can we bend the tma like hook and place on the base wire??

[@essentialbiomechanics9381]

In this case NO Dr, because this would act as a cantilever - and vertical forces would be produced. You need a statically indeterminate system (fully attached in both ends) in order to produce only couples (Geometry VI system)

[@sharvin5436]

@@essentialbiomechanics9381 okay understood we need one couple system in this case … thanks dr 👌🏼

[@angelineramos9063]

Wreckingball lol

[@rubymadrigal3102]

Wish my orthodontist watched this video

[@justnowvideos]

can you tell us where to buy those Wax Modells ?

[@m.m.3798]

Si alguien lo explica en español sería genial especialmente los últimos dobleces que se hicieron antes ya de colocarlo para que actúe

[@essentialbiomechanics9381]

C. A. Obrigado pela dica, mas por enquanto nossos vídeos só estão disponíveis em português ou inglês.

[@andrijagrujic7667]

great video, what about if we need molar uprighting with protraction or canine uprighting with intrusion. Could you explain these mechanics.

[@essentialbiomechanics9381]

Thank you. Usually the protraction is made after uprighting. I suggest this mechanics for lower molar protraction th-cam.com/video/gMcdXcmGbZQ/w-d-xo.html
I´ll take your suggestions about canine movements mechanics.

[@andrijagrujic7667]

Thank you for responding to my message. Could you please tell me more about canine or molar uprighting with intrusion? Do you usually use cantilever or alpha-beta spring?

[@MallWanI]

can you link the study model you are using in the video? please.

[@maciejwarnecki9060]

Wouldn't a simple centered V bend act in a similar manner? Could be activated intraorally as well.

[@essentialbiomechanics9381]

This is a very important and complex question Dr Maciej. If you insert a straight wire in this malocclusion (let´s focus on the inclined molar and on the anchorage unit), the resulting force system will be similar to a class III geometry. I mean, you will have the desired moment to upright the molar, but you´ll also produce an extrusive force in this tooth, which usually is not desired. If you make a centered V bend starting from this situation, the resulting force system will be the same. Another way to produce only moments in the molar (Geometry VI) would be by starting making a PASSIVE wire segment, and then insert a centered v bend. This approach would produce the appropriate force system (only moments), and this activation can be made intraorally. However, as soon the tooth move (let´s consider only the molar will move) the force systems will change (probably to a class of geometry V), and then you can not simply repeat this intraorally activation, because this activation will not produce a geometry VI anymore. To sum up, the safest approach to deliver only moments to a dental unit is by making a passive appliance (eg. the root spring of the video) and then activate it appropriately in each visit.

[@essentialbiomechanics9381]

About this very important topic, I also recommend our video about the SIX GEOMETRIES th-cam.com/video/0qx2Zbq5-SI/w-d-xo.html

[@moneyjoyk]

@@essentialbiomechanics9381 beautiful explanation

[@essentialbiomechanics9381]

@@moneyjoyk thank you Dr.

[@amgironworks]

Hi Dr. How long does an uprighting like this take?

[@isss8120]

great! by the way, how do you call that tube between 43 and 44 where you have inserted the TMA wire? thanks

[@essentialbiomechanics9381]

Thank you! These tubes are called CROSSTUBES. Its easy to clip in the archwire and they are very useful for segmented mechanics.

[@tranchaunguyenthi9823]

Thanks for your question and answer

[@shivarajbiradar3249]

What duration required for third molar alignment correction

[@mik27]

Beautiful

[@tuantainguyen6896]

Thanks

[@user-bf3lt3rq4i]

Dr. Please can you tell how can l intrude lower molar to decrease the open bite with out doing any kind of surgery..even the mini screw..
Thank you so much and good luck

[@isaacogunmuko3947]

Can this be used on 3rd molars?

[@essentialbiomechanics9381]

Yes

[@Bhiladpy-up9uy]

How long would it take?

[@thanhthunguyentran205]

why do we have to cancel the curvature in the horizontal segment Dr ?

[@essentialbiomechanics9381]

To increase the magnitude of the couples applied

[@raseczepol4419]

can this work in adults

[@essentialbiomechanics9381]

For sure!

[@max9677]

Can't tell in which direction you're bending

[@essentialbiomechanics9381]

Please checkout this similar video for a better understanding of this mechanics. th-cam.com/video/HBAdyk3dixo/w-d-xo.html

[@max9677]

@@essentialbiomechanics9381 thank you doc for your help

[@denden2233]

good.IS THAT 0.017X0.025 TMA?

[@essentialbiomechanics9381]

DEN TENDER , yes it is. Thanks for watching.

[@josephryanmabaquiao4825]

sir the curve or bend you did is buccaly or occlusal? and when you corrected it how did you do it?

[@rlagunda1]

Thanks but i’ll let the tech do that- that was not easy