Orthodontic generally invisible braces need more than 10 pairs of braces, if the age is relatively small, the degree of malocclusion is relatively mild, the total number of braces may be less, may be more than 10 pairs, or even 20-30 pairs, routinely between 45-60 pairs of braces. Complicated cases may be older and require extractions, and some patients may have poor dental and periodontal conditions, which may require more braces, even up to 70-80+ pairs of braces. Therefore, how many sets of braces are needed for bathing is mainly based on the severity of the patient’s malocclusion and the condition of the mouth itself, rather than just the doctor determining how many sets of braces are needed, which is mainly based on the patient’s condition.