Can Invisalign Fix a Midline Misalignment
An aesthetically pleasing smile is influenced by factors such as symmetry and proportion. In this sense, the midline is a factor that directly influences the attractiveness of the smile. But after all, is it possible to treat midline deviation through orthodontic treatment with Invisalign aligners?
Before responding directly to the question, it is important to address the topic in more depth.
1. What is the midline in dentistry
One of the main reasons for the aesthetic appearance of the human face is its symmetry, which is governed by two lines that pass vertically through the center of the face. These are:
* Facial midline
The facial midline is an imaginary line that divides the face into two halves (left and right), constituting a starting point for analysis and consequent improvement of smile aesthetics.
* Dental midline
The dental midline can be divided into upper and lower. Both are drawn vertically between the central incisors (upper or lower) to represent the center of the dental arch (maxilla or mandible).
Ideally, the facial midlines and upper and lower dental lines should coincide, reinforcing the concept of symmetry in smile aesthetics. Together, these midlines represent the symmetrical division of the teeth, lips, and musculature around the mouth.
Midline deviation is a very common problem, appearing even in famous people such as actors and models. Even the actor Tom Cruise is a well-known example of midline deviation, although its occurrence has been alleviated over the years with orthodontic and aesthetic treatments. Subtle asymmetries between the facial and dental midlines, generally up to 2 or 3 mm, may not be noticed by the lay public, but a significant discrepancy will be detrimental to oral and facial aesthetics.
2. What are the causes of midline deviation?
There are several causes that, alone or in combination, can cause midline deviation, among which we highlight:
* Tooth movements caused by the loss of one or more teeth
* Tooth agenesis
* Crowded or recessed teeth due to lack of space in the dental arch
* Diastemas
* Early loss of baby teeth
* Functional or skeletal mandibular deviations
* Restorations or prosthetics that alter the dimensions of the teeth, causing deviations in adjacent teeth
* Crossbite
3. Can midline shift be treated with Invisalign?
Yes, midline deviation can be corrected through orthodontic treatment with Invisalign aligners. Some cases caused by more serious skeletal changes may require orthognathic surgery. Many people would like to improve their smile through orthodontic treatment, but do not want to use conventional fixed braces with metal brackets and wires. Fortunately, after years of research and investment in technology, we can say that Invisalign aligners are the most modern and efficient alternative for people looking for a quick, discreet, almost imperceptible, comfortable, safe and predictable treatment.
The treatment uses a sequence of aligners that must be used at the frequency established by your orthodontist. Each aligner is made with a material called SmartTrack that allows a gentle and constant force to be applied to the teeth, improving control of their gradual movement to the position of the next aligner in the sequence. New tooth movement is encouraged whenever the aligner is replaced, until the desired result is achieved.
Invisalign aligners can be used on children, teenagers and adults (including middle-aged and elderly people) and are recommended for almost all types of orthodontic treatments, from the simplest to the most complex.