Variation in the ratio of anterior to posterior interarch distance before and after complete clearance of the teeth.
Despite the many methods available to determine the vertical dimension in edentulous patients, there is little data to evaluate their accuracy. This study introduces a method to evaluate the variations of the measured vertical dimension after complete clearance of the teeth. The ratio of the anterior to the posterior interarch distance was determined for 20 patients before and after complete extraction of upper and lower teeth; it was 2:1 and 1.5:1, respectively. Further, there was a strong association (r = .84) between the anterior and the posterior interarch distances before extraction but weak association between them after extraction (r = 0.57). The study suggests that the vertical dimension established by the most commonly used method does not approach the dimension before extraction of the teeth.
el-Dakkak
M
M
Faculty of Dentistry, Alexandria University.
Mostafa
I M
IM
D000328:Adult; D003724:Dental Arch / Q000473:pathology; D006801:Humans; D007574:Jaw Relation Record; D008875:Middle Aged; D014081:Tooth Extraction; D016388:Tooth Loss / Q000473:pathology*; D014716:Vertical Dimension