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A smile where the gums are visible, also known as a "gummy smile", can be very disturbing and can lead to being ashamed to smile. The gummy smile can easily be treated with Botox. A gum laugh is caused by too much tension in the muscle that pulls up the lip. A Botox treatment can slightly lower this muscle tension, with the aim of allowing the upper lip to reach the front teeth exactly while laughing. Treatment with Botulinum Toxin is almost painless, not very invasive, very safe and has an effect of about 3-4 months.