Removable Maxillary Expansion appliances. These appliances have precisely this purpose: To expand the upper dental arch and the maxilla (upper jaw). These appliances can be removable, i.e. patients can place them in and remove them from their mouth depending on the circumstances.
Their advantage is that patients can take them out in order to enjoy they food and – most importantly – to maintain a high level of oral hygiene. The greatest issue is that, usually, their fit inside the mouth is not perfect and/or patients often take them out too often, so the desired treatment outcome is not fully achieved. Personally, I very seldom choose to use such appliances in my practice.
Fixed Maxillary Expansion appliances. The most common are:
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