Is it normal after bracket placement the pieces of tooth to come out?

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Brackets are placed on the tooth using composite material, which is also white in color. We place the composite on the base of the bracket and put it onto the tooth, and excess composite flows out through the sides of the bracket from between the base of the bracket and the tooth surface. After bracket placement and proper positioning, it is fixed using a light cure unit which hardens the composite and fixes the brackets. Any excess composite, if not removed from the sides, does not have enough strength to stay on the tooth as not the entire tooth is conditioned to hold the composite. This excess part comes off in due time. Since it is also the same color as the tooth, a patient might confuse it with tooth pieces. Do not worry. 99.99% chance that it is the composite only and not the tooth particles. Bracket positioning does not harm tooth structure to come out into pieces. If it does not stop coming out for more than 24 hours since the bracket placement, kindly contact the treating Orthodontist once. Thanks.