title: [Masticatory efficiency and phonetics effects of double dentition denture for cleft lip and palate patients with different base design].
abstract: OBJECTIVE
  To evaluate the masticatory efficiency and phonetics in patients with cleft lip and palate before and after double dentition denture treatment, and determine the results of the treatment.
  
  
  METHODS
  6 patients who had cleft lip and palate with defect smaller than 1 cm x 1 cm or submucous cleft palate were selected to undergo double dentition denture treatment. Two kinds of base design were used. One was with artificial teeth and buccal base only. The other was with artificial teeth and base on both the buccal and palatal sides. Masticatory efficiency and phonetics effect were tested before and immediately after treatment and 1 month after treatment. The data were analyzed using SPSS11.0 software package for paired t test.
  
  
  RESULTS
  There was statistically significant difference in masticatory efficiency, before and immediately after treatment and 1 month after treatment (P < 0.01). As for phonetics , there was statistically significant difference on F2 and F3 before and immediately after treatment as well as 1 month after treatment (P < 0.05). While there were no statistically significant difference both on masticatory efficiency and phonetics between the two kinds of design.
  
  
  CONCLUSIONS
  Both the two kinds of treatment can improve the masticatory efficiency and phonetics effectively. It is not necessary to use the palatal base when the defect is smaller than 1 cm x 1 cm or submucous cleft palate present.
authors.affiliation: Department of Prosthodontics, College of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China.
authors.forename: Guo-Fang
authors.initials: GF
authors.lastname: Xing
authors.forename: Jian
authors.initials: J
authors.lastname: Sun
authors.forename: Yang
authors.initials: Y
authors.lastname: Chen
authors.forename: Yong-Lin
authors.initials: YL
authors.lastname: Jiang
authors.forename: Fu-Qiang
authors.initials: FQ
authors.lastname: Zhang
mesh_terms: D002971:Cleft Lip / Q000503:physiopathology*; D002972:Cleft Palate / Q000503:physiopathology*; D003817:Dentition; D003779:Denture Design; D003778:Dentures; D006801:Humans; D008409:Mastication / Q000502:physiology*; D010700:Phonetics; D014070:Tooth; D016896:Treatment Outcome