title: [Photoelastic analysis of mandibular edentulous alveolar bone with denture adhesives].
abstract: OBJECTIVE
  To compare the stress distribution of supporting tissues in Atwood level 3 alveolar bones under the mandibular complete dentures with and without denture adhesives.
  
  
  METHODS
  Photoelastic models of epoxy were fabricated according to the standard Atwood level 3 edentulous model. 1.5 kg force was vertically applied on the bite force loading device. After stress frozen, photoelastic model slices in posterior teeth area were observed and analyzed.
  
  
  RESULTS
  When using denture adhesives, stresses distributed more adequately in the buccal and lingual side and the force of alveolar crest increased remarkably.
  
  
  CONCLUSIONS
  To those with Atwood level 3 alveolar ridge and complete denture, denture adhesives can not only increase stability but also prevent local pressure under uneven stress distribution.
authors.affiliation: Shanghai Stomatological Disease Center. Shanghai 200031;China.E-mail:zhongqun681115@qq.com.
authors.forename: Qun
authors.initials: Q
authors.lastname: Zhong
authors.forename: Yan
authors.initials: Y
authors.lastname: Peng
authors.forename: Xue-ying
authors.initials: XY
authors.lastname: Wu
authors.forename: Meng-pei
authors.initials: MP
authors.lastname: Xia
mesh_terms: D001732:Bite Force; D003738:Dental Cements; D003778:Dentures; D006801:Humans; D008334:Mandible
chemical_list: D003738:Dental Cements