title: [The relationship between the changes of upper airway and genioglossus muscle activity after the treatment with Snoreguard].
abstract: OBJECTIVE
  To investigate the relationship between the changes of upper airway and genioglossus muscle activity after the treatment with Snoreguard.
  
  
  METHODS
  31 patients with OSAS or snoring were treated with Snoreguard Cephalometric analysis was carried out to compare the changes of the upper airway before and after the treatment. The relationship between the change in morphology and that of genioglossus muscle activity among 22 patients was investigated.
  
  
  RESULTS
  (1) The size of upper airway decreased significantly with Snoreguard. SPP-SPPW increased from (9.14 +/- 3.79) mm to (12.36 +/- 3.74) mm and TB-TPPW increased from (10.63 +/- 3.71) mm to (11.90 +/- 4.33) mm. UC-LC decreased from (21.96 +/- 11.06) mm to (10.48 +/- 8.55) mm and H-MP decreased from (20.60 +/- 6.65) mm to (11.01 +/- 6.84) mm. (2) The size of upper airway in part of the patients decreased with Snoreguard, but good treatment efficiency remained.
  
  
  CONCLUSIONS
  The mechanism of Snoreguard is caused by the mechanical enlargement of upper airway.
authors.affiliation: Department of Dentistry, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100032, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhao
authors.forename: Xiang-long
authors.initials: XL
authors.lastname: Zeng
authors.forename: Min-kui
authors.initials: MK
authors.lastname: Fu
authors.forename: Xi-zhen
authors.initials: XZ
authors.lastname: Huang
mesh_terms: D000328:Adult; D000368:Aged; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010159:Palate / Q000473:pathology; D010609:Pharyngeal Muscles / Q000503:physiopathology*; D020181:Sleep Apnea, Obstructive / Q000473:pathology / Q000503:physiopathology / Q000628:therapy*; D012913:Snoring / Q000473:pathology / Q000503:physiopathology / Q000628:therapy*; D014059:Tongue / Q000473:pathology*; D014132:Trachea / Q000473:pathology*