The frenulum is a thin fold of mucous membrane that connects the lip or tongue to the surrounding tissue in the oral cavity. There are 7 frenula in the oral cavity – three in each jaw and one under the tongue.
In dentistry, we distinguish the labial frenulum, which connects the upper or lower lip to the gums, the lingual frenulum, which connects the underside of the tongue to the floor of the mouth, and the buccal frenula, which connect the cheeks to the gingiva. Difficulties most often occur with the tongue frenulum and the upper lip frenulum.
When the frenulum is too tight, short, thickened, or positioned in an inappropriate way that restricts tongue movement, it can cause numerous problems. Some of these problems include:
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Gum recession if the frenulum attachment is close to the tooth
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Pain during oral hygiene
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Speech problems
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Difficulties with eating and swallowing
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Neck tension and headaches
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Mouth breathing
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Sleep apnea
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Inability to breastfeed