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Table 6 Chi-square test of marginal discrepancies for the impression techniques, by implant position in the arch

From: A prospective clinical study on implant impression accuracy

Marginal discrepancyOpen trayClosed trayP value
Maxilla6 (33.3%)6 (33.3%)0.999
Mandible2 (9.1%)6 (27.3%)0.240
Anterior2 (15.4%)3 (23.1%)0.50
Posterior6 (22.2%)9 (33.3%)0.272
  1. Significance level p ≤ 0.05