Invisalign Treatment Flow

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Last updated on December 2, 2023

New mouthpiece orthodontic systems and companies have emerged in recent years, but the current overwhelming global market share for mouthpiece orthodontic treatment isInvisalignIt is.

Invisalign is the most widely used mouthpiece orthodontic system with the most cases, the most research, and the most authoritative orthodontic treatment system recognized by many orthodontists.

This time,Treatment flow of Invisalign, a typical mouthpiece orthodontic treatmentThe following is an introduction to the

Invisalign Treatment Flow

stencil printing (on cloth)

To begin Invisalign, a mold must be taken to create a custom-made mouthpiece.

For moldmaking

How to make a mold with silicone

How to read tooth geometry from an intraoral scan

There are two methods.

How to mold with silicone

How to mold with silicone.

It is the same method that most people who have been to the dentist have probably experienced, where a pinkish slop is pressed down on you and you wait until it hardens.

The molding process is the same as for a regular cap or filling, but silicone flows a little better than that pink material that is often used, so many people tend to ooze down the back of their throat.

This is a mold that is packaged and mailed to the Invisalign company in the U.S.

After acceptance by the Invisalign company, the patient will be scanned, a treatment plan will be created, and a mouthpiece will be made.

How to read tooth geometry from an intraoral scan.


A scanner called iTero is used to scan the inside of the mouth. It is much easier and faster than traditional molding.

Because the scans are transferred directly online, the time it takes to plan treatment and make the mouthpiece is greatly reduced compared to mailing silicone overseas.

In addition, while the accuracy of silicon molding depends on the skill of the doctor who takes the mold, intraoral scanning is less likely to show differences in skill among doctors and can reproduce more details.

In addition, clinics that have iTero often offer a service that also scans the patient during a free consultation to predict the final result.

From the doctor's point of view, the introduction of the intraoral scanner (iTero) is only beneficial because it requires less time and effort, and treatment can proceed more quickly and be explained more easily,

Some clinics cannot afford it because the price is very high.

The difference in technology cannot be measured by whether or not iTero is installed, but it is still a necessary investment for clinics with a large number of Invisalign cases due to its functionality,Whether or not the clinic incorporates an intraoral scanner could be an indicator of the extent to which the clinic is committed to Invisalign.

Less discomfort when ✅️ molds are taken

✅️Speed to start treatment

✅️Easy to understand explanations during counseling

This facility is also beneficial to patients for three reasons.

Check for clinchecks

ClinCheck is a treatment plan that is created after the mold is taken.

After the molding is accepted by the Invisalign company, an approximate treatment plan is sent to the clinic based on reference data such as the amount of movement and ideal tooth alignment.

By looking at the ClinCheck data,

✅️ how many mouthpieces need to be replaced before treatment is completed

✅️ final teeth

✅️ which teeth to move and in what order.

✅️ when to cut between teeth to create space (some people don't cut)

✅️Tooths with attachments (protrusions on the surface of the teeth)

can be confirmed.

However, the key here is,The treatment plan that was sent to you at the beginning was created mechanically by the Invisalign company and not by the doctor's diagnosis.The following is a list of the most common problems with the

Although the amount of tooth movement is calculated, it is always necessary for each doctor to check and correct the treatment plan because the tooth may be moved in a direction that is not obvious, or the plan may be to move the root to a position where there is no bone.

After reviewing the plan that the Invisalign company has made for you, you can request modifications to the direction and method of movement, as well as additional features, and have the treatment plan made again.

This process is the most important part of Invisalign treatment.

The doctor's skill and experience come alive in this process.

Once the treatment plan has been revised, proceed to 3⃣ order the mouthpiece.

Order mouthpieces

Once the treatment plan is completed, a mouthpiece is ordered.

Since the products are made at an overseas factory, it takes about two weeks for them to arrive at the clinic after the order is placed. When we are busy, it may take up to three weeks.

If you lose your mouthpiece in the middle of treatment and have to reorder, it is a little faster than the first time because it has already been loaded once, but it can take several days, so be careful not to lose it.

Start treatment, first try the first two sheets.

In the beginning, most patients are asked to use the mouthpiece without the protrusions, called attachments, in order to get used to life with the mouthpiece.

The system is designed to move the teeth by continually applying weak force, so try your best to wear it for at least 20 hours a day.

Must be worn except when eating and brushing teethThe following is a list of the most common problems with the

If you forget to put it on and put it back on a few hours later, the tooth that has returned to its original position while you were not wearing it can be severely stressed, and in the worst case, the nerve can die.

Attachment installed, full-scale start

When you put the attachment on and put the mouthpiece on, you will find that the mouthpiece will feel much tighter because, unlike the second piece, the mouthpiece is supported and fitted by the attachment.

However, this tight feeling is evidence that the teeth are moving. The teeth move along the shape of the mouthpiece to get closer to the correct alignment of the teeth, and the tight feeling disappears after wearing the mouthpiece for a long time.

When the tightness becomes less severe, the mouthpiece can be replaced with the next one, allowing the teeth to move to the next position without difficulty.

The most important time is when you have just changed to a new mouthpiece: wear it for at least 20 hours and chew the aligner chewie daily for a good fit.

Visit the clinic every 1-3 months for checkups, IPR (shave space between teeth to create space)

The following are the checkpoints that the doctor sees during a visit to the hospital.

✅️ aligner is not floating?

✅️ How many hours are you able to wear it each day?

✅️ Aligner chewie chewie or not?

✅️ for new cavities.

✅️ if the back teeth are no longer meshing when the aligners are removed.

✅️ for badly shaking teeth.

✅️Disparity between the alignment of the teeth to be treated and the actual alignment of the teeth

✅️ for gingival recession, etc.


Even if you think you have a good fit, there are times when only one tooth with severe rattling is floating.

If the cavity is enlarged, treatment should be stopped and the cavity treatment should be started.

If the shaking of the teeth has become severe, we may take a break from moving them.

If necessary, a new series will be re-molded and ordered.

Also,Checking as well as IPR, a process of grinding between teeth during the course of treatment.may also be performed.

Basically, the amount of shaving is less than 0.5 mm and only in areas far from the nerve, so there is no pain.

If the mold does not fit properly during the process, or if you want to make further modifications after the process is complete, you can re-mold (refinement).

Refinement means re-molding and ordering a new series.

The indications for refinement are as follows

If it floats in the middle of treatment and it is determined that it will not move as planned even if it proceeds as is.

If you want to make some more modifications after the series is over

If a cavity has formed and the tooth has been reshaped by a filling

It is easy to lose motivation if you have to start over in the middle of a project.

However, there are individual differences in the way they move, so I believe that refinement is an inherent part of Invisalign treatment.

Be patient and hang in there!

Repeat 5⃣ to 7⃣ until you are satisfied.

Repeat the above 5⃣ to 7⃣ process until the ideal alignment of the teeth is achieved.

Once you are satisfied with the finished product, another mold is taken and a retainer is made.

Once the teeth are aligned and meshing well, retainers are made.

After moving the teeth, the teeth are shaky and easily revert back to their original position, so retainers should be used to hold them in place until the teeth are stabilized.

Different clinics will have different explanations for how long retainers should be worn and how long they should last, but it is more effective to wear them for as long as possible.

Retainers should be used carefully because if they fall back, they may need to be re-treated again.

Invisalign retainers are called Vivera retainers, and you will receive three mouthpieces with your final teeth aligned.

Poor care can lead to staining and dirt buildup, so be sure to brush daily with a toothbrush and use a cleaning agent if necessary.


How was it? In this article, we have explained the Invisalign treatment process in detail.

Use it as a guide to what treatment awaits you once you begin treatment😊.

If you are looking for a reliable Invisalign doctor or want to ask questions before the consultation, please feel free to contact us on our official line.

RELATED:What are retainers used in orthodontics?

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Written by: Dentist/Yukiko

Graduated from Nagasaki University Faculty of Dentistry, worked at Kyushu Medical Center, and currently works at a dental clinic in Tokyo.


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