Relevance of Lip Pressure to Post-treatment Stability-Part I: Development of a Lip Pressure Gauge and Measurement of Maximum Lip Pressure in Subjects with Normal Occlusion-:Part I: Development of a Lip Pressure Gauge and Measurement of Maximum Lip Pressur

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It is known that excessive strain and strength of the perioral musculature greatly affect dentition and the alveolar process. I devised a lip pressure gauge capable of separately measuring upper and lower lip pressure, and then measured lip pressure in 507 subjects with normal occlusion (244 males and 263 females, aged 7 to 18 years) after confirming the reproducibility of measurement. As a result, (1) lower lip pressure was significantly stronger than upper lip pressure;(2) lip pressure in males was significantly stronger than in females;(3) both upper and lower lip pressures increased with age;(4) the ratio of upper and lower lip pressures was approximately 1: 1.2 to 1.3.
特定非営利活動法人日本顎変形症学会の論文