The accuracy of different macrogeometry of dental implant in dynamic navigation guided immediate implant placement in the maxillary aesthetic zone: an in vitro study

Abstract

<p>Purpose: This study aimed to compare the accuracy of immediate implant placement (IIP) with different implant macrogeometry using a dynamic navigation in the maxillary aesthetic zone.MethodsSeventy-six extraction sockets in the maxillary aesthetic zone from nineteen partially edentulous models were randomly divided into four implant system groups with different macrogeometry: non-progressive and trapezoidal (NP-T), progressive and trapezoidal (P-T), progressive and V-shaped (P-V), progressive and spiral (P-S). The coronal, apical, and angular deviations of the fully guided implants with navigation were measured and compared among different groups.ResultsSignificant differences were detected in coronal, coronal buccolingual, coronal depth, apical, apical buccolingual, and apical depth deviations among the four groups (p = 0.035, p = 0.001, p = 0.004, p = 0.047, p = 0.007, p = 0.004, respectively). The P-V group demonstrated minimal coronal and apical buccolingual deviations (mean +/- SD: 0.06 +/- 0.35 mm and 0.00 +/- 0.42 mm, respectively) for IIP with the guidance of dynamic navigation.ConclusionsWith the limitation of the in vitro study, different microgeometry of implants might influence the accuracy of IIP in the maxillary aesthetic zone with dynamic navigation. Implants with progressive and V-shaped thread designs perform best in reducing buccolingual deviations.<br></p>