Tooth whitening is generally not recommended if you have initial periodontitis. You need to treat it first, then consider whitening (ask your dentist or hygienist first!). Periodontitis is a gum disease that affects the supporting tissues of the teeth, including bone and ligaments. In such cases, it's essential to treat periodontitis first by consulting your dental hygienist, who can refer you, if necessary, to a periodontal specialist, also known as a periodontologist. Before considering tooth whitening, it's essential to ensure that your oral health is optimal. If you suffer from periodontitis, it's crucial to follow the treatments recommended by your hygienist/periodontologist to stabilize gum disease. Once periodontitis is under control and your gums are healthy, you can discuss the possibility of teeth whitening. In summary, if you have periodontitis, first consult your hygienist or a periodontologist to evaluate and treat this condition. Once your oral health is optimal, you can consider tooth whitening.