title: [Study of biomechanical properties of mucosa scars after cleft palate surgery].
abstract: OBJECTIVE
  To explore biomechanical properties and stress-strain of mucosa scars after cleft palate surgery.
  
  
  METHODS
  After the model of mucosa scars was made, the mucosa scars and normal mucosa were excised and examined immediately by tensionometry.
  
  
  RESULTS
  The mucosa scars after cleft palate surgery were compared with normal mucosa. The Poisson's ratio of mucosa scars and normal mucosa was 0.5 and 0.49, respectively, showing no significant difference between the two groups. The ultimate Young's modulus of mucosa scars was about 24.22 MPa, however, it declined to 3.32 Mpa in normal mucosa.
  
  
  CONCLUSIONS
  The mucosa scars after cleft palate surgery are biomechanically weaker than normal mucosa. It can be used for further research, such as maxillary orthognathic surgery, distraction osteogenesis, and orthodontic treatment.
authors.forename: Min
authors.initials: M
authors.lastname: Hou
authors.forename: Guang-Yu
authors.initials: GY
authors.lastname: Shi
authors.forename: Wei
authors.initials: W
authors.lastname: Qiu
authors.forename: Lan-Cheng
authors.initials: LC
authors.lastname: Zhang
authors.forename: Tian-Ping
authors.initials: TP
authors.lastname: Yu
authors.forename: Chun-Ming
authors.initials: CM
authors.lastname: Liu
mesh_terms: D001696:Biomechanical Phenomena; D002921:Cicatrix / Q000503:physiopathology*; D002972:Cleft Palate / Q000601:surgery*; D006801:Humans; D009061:Mouth Mucosa / Q000503:physiopathology* / Q000601:surgery; D019857:Osteogenesis, Distraction; D019340:Osteotomy, Le Fort