title: [The accuracy of linear measurements of jaw implant regions obtained by multi-slice spiral CT and dental software].
abstract: OBJECTIVE
  To evaluate the measurement accuracy by multi-slice spiral CT(MSCT) and dental software as a tool for preoperative design before tooth implantations.
  
  
  METHODS
  Twenty volunteers with marker template underwent MSCT. The diameter of the front teeth crowns in the bucco-lingual direction were measured by MSCT using a standard dental software package. Postoperatively, the same distances were clinically measured using a sliding caliper. The consistency between the two measurements was analyzed by paired t test using SPSS17.0 software package.
  
  
  RESULTS
  The difference of measurements was -0.04-0.21mm. There was no significant difference between the CT and the manual measurement of the crown diameter in the bucco-lingual direction(P>0.05).
  
  
  CONCLUSIONS
  The results demonstrate that MSCT and marker template promises to be a valuable method for the measurement of jaw implant regions.
authors.affiliation: Department of Dentistry, Shanghai East Hospital, Shanghai 200120, China. guolingyun@sina.com
authors.forename: Ling-yun
authors.initials: LY
authors.lastname: Guo
authors.forename: Hua-yan
authors.initials: HY
authors.lastname: Guo
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Yuan-liang
authors.initials: YL
authors.lastname: Huang
mesh_terms: D006801:Humans; D012984:Software; D036542:Tomography, Spiral Computed; D019228:Tooth Crown