shuklamojumder02
Do³±czy³: 06 Mar 2024
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 Wys³any: Sro Mar 06, 2024 04:30 Temat postu: How to correct the dental midline with clear aligners |
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The dental midline is one of the most important keys to the aesthetics of a patient's smile. Before starting treatment with aligners, it is essential to make a correct diagnosis of the case and, among many other factors to be evaluated, is the analysis of the dental midline, which will allow us to know what movements we can and should make to achieve the desired objectives. . We must analyze the upper dental midline and the lower dental midline separately. Upper dental midline The upper dental midline should always be centered with the facial midline , as long as there is facial symmetry. There may be a deviation of the dental midline of up to 3 mm to the right or left without this being perceptible by the general population when having a conversation at a normal distance. Another important aspect to keep in mind is that the upper dental midline should not be inclined with respect to the facial midline, it should be parallel to it or else it could appear unsightly.
Lower dental midline The lower dental midline should be centered with the upper dental midline (and, therefore, with the facial midline), and, as with the upper dental midline, a deviation of up to 3 mm may exist and go unnoticed. . The deviated midline is a defect that affects a large part of the population and that, sometimes, is not given the importance it deserves. What can cause midline deviation? There are cases in which Japan Telegram Number Data our patient's occlusion is perfect and he has a deviation from the midline. In this case the cause may be an asymmetry in the size of the teeth , that is, Bolton's discrepancy , where there is an alteration between the mesiodistal size of the upper and lower teeth. Another cause, and perhaps the most common, is the presence of malocclusions such as class II or class III, where the position of the teeth can determine the deviation of the midlines. On the other hand, there are skeletal causes where there is, for example, a mandibular deviation and the deviation from the midline is due to a component directly related to the mandibular bone.
The deviation of the midline can also be due to a dental absence , either due to agenesis of the tooth or due to its loss, which generates a movement of the remaining teeth towards the space of the tooth absence, causing in many cases an alteration. in the position of the dental midline. And, finally, it may be due to a functional component, where patients perform lateral or protrusive mandibular displacements , which generates an “apparent” deviation of the lower midline, but which is not real. For this reason, it is of utmost importance that the professional evaluate the mandibular position in centric relation, that is, in the ideal position in which the condyles are centered in the glenoid fossae, without straining the muscles or ligaments. How to correct the upper or lower dental midline with aligners? The deviation from the midline does not occur on its own, there will always be a basic alteration that causes it. The most important thing in cases of midline deviation is to determine and diagnose what is causing it to attack the root problem and provide the patient with the result they are looking for.
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