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palate expanders  

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mr.mewing
Estimable Member

can somebody tell my what the positives and the negatives are with palate expanders like a y-plate or a schwarz expander or a active plate

and do they also work with fixed retainers on?

and can they tip or crow the teeth?

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Posted : 26/03/2019 5:50 am
snaaaaakes
Active Member

Yes a lot of them tip the teeth. The slower the expansion, the more tipping.
No, they won't work with bonded retainers.

ReplyQuote
Posted : 27/03/2019 5:24 am
Abdulrahman
Reputable Member

They give out more force than self ligating braces or lingual wires but they tend to create blisters and can cause serious gum rescission. Also unless shaved down, they can block the palate from dropping. They also block the tongue from posturing on the roof of the mouth because they occupy that space. Traditionally they were used with children who were growing until advanced wires made them less appealing.

They can work with fixed retainers if they are designed to push only against the side teeth while avoiding the front. Thought I am not sure that is healthy.

They can tip the teeth if used too fast. For example for alveolar remodeling they should be opened around once per week for a total of 1mm of expansion per month. Go faster and you get the risk of tipping. Go much faster and you might get skeletal expansion.

It all depends on what you are trying to achieve, but in general such expanders have fallen out of use allot.

my story: http://www.aljabri.com/blog/my-story/

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Posted : 27/03/2019 6:01 am
mr.mewing liked
Abdulrahman
Reputable Member

One more thing, if planning to expand both arches you should know that lower acrylic expanders tend to be much less effective than the upper ones. That's because the expander screw has to be placed at the front instead of the middle where the tongue sits in the lower jaw.

my story: http://www.aljabri.com/blog/my-story/

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Posted : 27/03/2019 6:19 am
mr.mewing
Estimable Member

@abdulrahman
I am trying to achieve more tongue space because with a intermolar width of 32/33mm it's hard to mew and also hard to breath but that gets better.

Was searching for a ALF DNA biobloc or homeoblock
But couldn't find an orthodontist who worked with those devices in my country (netherland) they use most of the times an hyrax a rappid expander which i don't like because their is no tongue space and you need braces after expansion

Don't know if you know some devices that are decent to creat more tongue space?

ReplyQuote
Posted : 27/03/2019 7:34 am
Abdulrahman
Reputable Member
Posted by: mr.mewing

@abdulrahman
I am trying to achieve more tongue space because with a intermolar width of 32/33mm it's hard to mew and also hard to breath but that gets better.

Was searching for a ALF DNA biobloc or homeoblock
But couldn't find an orthodontist who worked with those devices in my country (netherland) they use most of the times an hyrax a rappid expander which i don't like because their is no tongue space and you need braces after expansion

Don't know if you know some devices that are decent to creat more tongue space?

You could use self ligating braces such as Damon to achieve expansion, but I think your best bet is the ALF. Can you travel to London? You could always have Dr. Mike Mew provide you the ALF or you could contact Dr. Ljuba Lemke to find out if there is an ALF practitioner closer to you.

https://www.alternativeorthodontics.com/

my story: http://www.aljabri.com/blog/my-story/

ReplyQuote
Posted : 27/03/2019 7:45 am
mr.mewing
Estimable Member
Posted by: Abdulrahman
Posted by: mr.mewing

@abdulrahman
I am trying to achieve more tongue space because with a intermolar width of 32/33mm it's hard to mew and also hard to breath but that gets better.

Was searching for a ALF DNA biobloc or homeoblock
But couldn't find an orthodontist who worked with those devices in my country (netherland) they use most of the times an hyrax a rappid expander which i don't like because their is no tongue space and you need braces after expansion

Don't know if you know some devices that are decent to creat more tongue space?

You could use self ligating braces such as Damon to achieve expansion, but I think your best bet is the ALF. Can you travel to London? You could always have Dr. Mike Mew provide you the ALF or you could contact Dr. Ljuba Lemke to find out if there is an ALF practitioner closer to you.

https://www.alternativeorthodontics.com/

thanks for the reply!

i have searched on their site and they got a map

Unfortunately the nearby practitioner is in Ierland, Norway , and Hongaria which is in all cases to far from my because i am a student ,

and yeah maybe i could go to Mike mew himself , London is possible it's not that far in my opinion

ReplyQuote
Posted : 27/03/2019 8:11 am
guiduck
Active Member

@abdulrahman

dr mew sayd in one video the proper expansion rate is 1mm per week. Does this applies to everyone? I'm thinking of buying the 3 screws plate from bracesshop( https://www.bracesshop.net/en/active-plates/19/stretching-plate-with-3-screws-upper-jaw). Can you give me some information about it? I want to know proper expansion rate for adults and best cost benefit of it or if I should just stick to mewing and myobrace. my main problem is a recessed jaw

ReplyQuote
Posted : 13/11/2019 5:03 pm
Abdulrahman
Reputable Member
Posted by: @guiduck

@abdulrahman

dr mew sayd in one video the proper expansion rate is 1mm per week. Does this applies to everyone? I'm thinking of buying the 3 screws plate from bracesshop( https://www.bracesshop.net/en/active-plates/19/stretching-plate-with-3-screws-upper-jaw). Can you give me some information about it? I want to know proper expansion rate for adults and best cost benefit of it or if I should just stick to mewing and myobrace. my main problem is a recessed jaw

In that video Mike Mew refers to his semi rapid expansion method, in which the palate is cracked open at the mid line suture with the use of an expander. The expansion I was referring to is slow and works on the bases of remodeling existing bone to become wider. The normal rate is 1mm per month. I have seen one research paper where they went slower (1/4mm) and at the end of the trail achieved skeletal change.

I do not recommend you try anything on your own, except practicing myofunctional exercises, correct swallowing, and posture correction.

my story: http://www.aljabri.com/blog/my-story/

ReplyQuote
Posted : 13/11/2019 11:31 pm