The main reason why tooth extractions are needed for malocclusion is to provide enough space for the teeth to be extracted to make the correction of crowding successful. In mild crowding, limited space can be obtained by expanding the dental arch. In moderate crowding, most of the space should be obtained by extractions. In severe crowding, extractions are necessary to obtain adequate space for successful treatment. There is no need to worry about the effect of extractions on chewing function because straight teeth are healthier, easier to clean, and less prone to periodontal disease and dental caries (dental caries). Straight teeth have a larger contact area when biting and chewing is more efficient! Therefore, orthodontic extractions that are both aesthetically pleasing and functionally beneficial are beneficial and harmless, and there is no need to worry.