The phenomenon of bad breath when wearing braces, consider that it may be more difficult to clean resulting in food stagnation and odor, you can improve bad breath through the use of dental floss, orthodontic gap brush, mouthwash and other methods. 1. Use of dental floss: after wearing braces due to the teeth of the lip and cheek side or tongue and palate side of the bonded metal brackets or resin attachments, routine cleaning is more difficult to eat food residues are easy to hide in the edge of the brackets, after a period of time in the bacterial action of the phenomenon of halitosis, you can use dental floss to clean up the soft tartar and other residues, thereby improving bad breath. 2. Use orthodontic gap brush: after wearing braces due to the presence of arch wire and brackets and other components, the conventional toothbrush can not thoroughly clean some of the gaps in the teeth, which leads to plaque growth caused by bad breath, so you can use the orthodontic gap brush to clean the brackets and the special gaps in the tooth surface after the routine daily brushing care to alleviate bad breath. 3. Use of mouthwash: bad breath after wearing braces, you can also use mouthwash such as chlorhexidine or metronidazole to rinse your mouth after brushing your teeth or eating daily to improve the phenomenon of bad breath.