Why aren’t my result with invisalign perfect?
Once the treatment is completed, some patients still notice some alignment problems with their teeth. For example, the center of the inferior teeth aren’t aligned with the superior ones, or the last molars aren’t aligned, etc.
The question is relevant, but the results always have to take in consideration the initial situation of the teeth. They are certain limits of the possible results depending on the initial teeth alignment degree. Difficult access to some teeth, bone solidity or manners of chewing can influence the final result.
In nature, perfection is difficult to reach, so we have to accept these minor variables. In orthodontics, to obtain perfection, we need to select very aggressive types of treatments, such as jaw surgery or teeth extraction. It is not always worth it, it is a simple question of choices.
A complete evaluation performed by an orthodontist will let you know the possible restrictions, and will also give you a final result simulation.
What is the difference between orthodontics and dentofacial orthopedics?
Problem to solve: narrow maxillary
Magalie is height and a half years old and she was referred by her dentist. The first observation that I bring up to her mother is her narrow and deep palate form. There isn’t much space for the four superior incisors and she had a triangle shaped smile. Furthermore, the rear baby teeth and the first adult molars were closing in the inside of the bottom teeth.
Even if the patient does not yet have all her adult teeth, the suggested treatment is the orthopedic rectification. The correction of a narrow maxillary is made with a device that is fixed to four teeth, usually the first adult molar and the first primary molars. There is a micro screw in the center of the device, and it must be turned once a day for a period that varies from 24 to 32 days.
At such a young age, this procedure is not painful because the middle of the palate is still made of soft cartilage, and the teeth positions will change very quickly.
The bones aren’t yet hardened and the treatment will increase the mastication posture, and also help to develop breathing because the sinuses are connected to the maxillary. This treatment will not avoid a future orthodontic treatment at an adult age, but the bone form will have been corrected.
Why are my teeth sensitive when I change my orthodontic device?
Whether it is with traditional braces or with Invisalign, when a new form of pressure is applied on the teeth, it creates a pressure on the teeth roots and it disturbs the blood flow in the dental alveolus. This leads to some inflammation on the pressure points and it is why the teeth could move.
The inflammation calls for restructuring cells to the rescue. One of these types of cells are named osteoclasts and they break down the bone. During this time on the other side of the root, the osteoblasts will reshape it. The pain is temporary and less felt as the treatment progresses.
Also, during your treatment, the teeth might seem wobbly while you eat or during toothbrushing. That is because the periodontal ligament thickens and the fibres that hold the teeth are elastic. Once the treatment is completed, it will take a few months, but the ligament will relax and the mobility of your teeth will disappear. This is why a stabilisation device is necessary after an orthodontic treatment.
Why retention in traditional orthodontics or Invisalign?
The teeth adjustment is made with the remodeling of the bone that encircles the tooth root (dental alveolus). The ligaments that encircle and support the tooth in its alveolus are extracted.
Once all the teeth are aligned, the ligaments need to be relaxed. This usually takes twelve months. The teeth must then be stabilized with a removable device or with a wire that is glued on the back of the inferior incisors. Although this wire is not noticeable, it is a very efficient solution even if it might sometimes make the cleaning more complicated.
On a long term basis, it is recommended to wear a night retention device, once a week.
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