The answer to the query in the heading above cannot be a simple yes or no. The answer lies in the nature of dental malocclusion cases that is being speculated for correction through clear aligners. Only an expert dentist can wave a green flag for a dental case that can be corrected through clear aligners. Although, clear aligners being the latest teeth straightening devices claim to correct most of the malocclusion cases like:

Class I Malocclusions: 

This one is most common type of malocclusion where the bite is normal but there is overlapping of upper teeth over the lower teeth.

Class II Malocclusions:

Commonly referred as ‘overbite‘, it is the malocclusion where the upper-case teeth and jaw overlap the lower teeth and jaw prominently.

Class III Malocclusions:

Referred as ‘under bite‘, this type of misaligned teeth have a protruding lower jaw causing the upper jaw and teeth to overlap.

Clear aligner Treatment:

Clear aligner treatment works best for class I and class II malocclusion cases. One can say that they work effectively for the correction of mild to moderate dental misalignment conditions as the alignment process requires slight tooth movements. For complex dental condition that fall in the class III malocclusion category require high degree of tooth rotation or angular movement which might be a difficult task to achieve for clear aligners. However, clear aligners or invisible braces provided by reputed companies like Invisalign, Rejové32 Aligners, Toothsi and Flash Orthodontics, claim that owing to their high-end software, high-quality raw-material and precise technology even class III malocclusions can also be corrected. It must also be kept in mind that going for teeth straightening treatment for a complex dental malocclusion condition, the treatment duration will be longer than in mild to moderate dental condition cases.

How do clear aligner fix teeth misalignment?

Be it a mild, moderate or complex dental condition, the clear aligners will work on single mechanism of slow and sustained pressure for achieving the desirable degree of tooth movement. The patient is given different sets of clear aligners at various stages of treatment, starting with a ‘zero aligner set’. The patient and dentist follow a treatment plan designed by the dentist itself for each patient who wishes to get their teeth corrected through clear aligners. Once the desired tooth movement is achieved, the teeth alignment process is complete. If at any point, the dentist or the patient feels that the course of the treatment is not obtaining desirable results, the treatment plan can be modified to achieve accurate results.

The only thing to remember is that the clear aligners alone cannot complete the teeth alignment treatment with accuracy. There are more things that come into play to get an error-free teeth straightening treatment such as:


Like any other product, there are numerous clear aligner brands in the market but it is best to choose a brand that has a foothold in the dental industry, must have a satisfactory list of successful smile correction cases, must be equipped with government compliances and requisite medical licenses and last but not the least must have a proper set-up that includes a team of doctors, technicians and customer support service.

Expert Guidance: 

Teeth straightening is a medical procedure and must be executed under the supervision of an expert doctor. Some ‘direct-to-home’ clear aligner brands lure the customers for getting the service at the comfort of their home and at a very low price but to make it affordable they bypass the doctor supervision making it a risky preposition. An unsupervised medical treatment can lead to irreparable losses. Therefore, it is highly recommended to go for a brand like Rejové32 Aligners, Flash or Invisalign that partner with expert dentist to treat the malocclusion cases.

Patient compliance:

Lastly it is the patient compliance with the treatment guidelines that support the treatment procedure in providing accurate teeth straightening results. Clear aligners do not come with a list of rules but there a few to follow to get accurate results such as:

  1. Wear clear aligners for at least 22 hours a day.
  2. Always remove the clear aligners before eating/drinking any meal or food item.
  3. Clean the clear aligner trays with fresh water, mild toothpaste and soft bristle brush to keep them free of dirt and bacteria.
  4. Always keep the clear aligners in the aligner box that is provided by the clear aligner company when the aligners have been removed to eat or brush, as it saves them from heat, dust and bacteria.
  5. Always keep aligners at room temperature, do not refrigerate them or expose them to high temperatures as the aligner trays are medical grade plastic which can deform, and the patient might find it difficult to fit them.

Let’s conclude it here by saying that clear aligners can treat all malocclusion cases be it mild, moderate or complex, but the results largely depend on the three factors we discussed above: Brand, expert guidance by dentist and patient compliance.