Mouth Breathing The Problem with Mouth Breathing

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Presentation transcript:

Mouth Breathing The Problem with Mouth Breathing The tongue no longer provides support for the upper jaw resulting in reduced upper arch size. The vault rises leading to reduction in the size of the nasal passages contributing to congestion of nose, causing elongation of the face. The pH of saliva elevates leading to increased rate of decay. A tendency to URT infections often resulting in tonsillitis and enlarged adenoids. The brain (medullary trigger) resets at lower level leading to hyperventilation. The alkalinity of blood increases so less oxygen released from the blood. This is known as the Bohr Effect. This leads to acne, increased urination, and lethargy. Oxygen circulates through the blood in the form of oxy-haemoglobin, but reduced levels of carboxyhaemoglobin means that less oxygen is released from the oxy-haemoglobin to enter the tissues so cells die (cell death). Smooth muscle spasm. Gastric reflux, asthma and bed wetting are commonly associated with chronic mouth-breathing.

Mouth Breathing When Harvold et al surgically blocked the noses of young monkeys they all developed malocclusions. All experimental animals gradually acquired a facial appearance and dental occlusion different from those of the control animals. Egil P. Harvold, DDS Ph.D.,L.L.D.Brittta S. Tamer, DDS, Kevin Varervik, DDS., and George Chierici, DDS - American Journal of Orthodontics Vol 79. No. 4 April, 1981.

Mouth Breathing The mouth breathers’ maxillas and mandibles were more retrognathic. Palatal height was higher, overjet was greater in mouth breathers. Overall, mouth breathers had longer faces, with narrower maxillae and retrognathic jaws. Basically, mouth breathing produces less attractive faces. Mouth Breathing in Allergic Children: It’s Relationship to Dentofacial Development Bresolin, Shapiro E.T. Al. American Journal of Orthodontics 1983.

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Making Beautiful Faces

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Mouth Breathing

Mouth Breathing

Mouth Breathing