The accuracy of single implant scans with a healing abutment-scanpeg system compared with the scans of a scanbody and conventional impressions: An in vitro study

To compare the accuracy of polyvinylsiloxane (PVS) impressions and intraoral scans when a healing abutment-scanpeg system (HASP) or conventional scanbody (CSB) was used on single implant. A maxillary model with an implant (4.0 × 11 mm) (Neoss) CSB HASP scanned by using laboratory scanner (Ceramill Map 600; Amann Girrbach) (reference scans) (Trios 3) (n = 10). PVS open-tray were also made stone casts digitized scanner. Intraoral cast superimposed to their reference scans. On scans, points selected calculate distance deviations (at 1–4) angular 5 6 PVS, 5–8 HASP) between (trueness), variation (precision). The deviation data analyzed ANOVA pairwise comparisons (trueness) Tukey's adjustment, F-tests At point 1, had lower trueness than (difference in means (DIMs) 0.184 mm, p 0.006) (DIMs 0.122 0.042). 3, higher 0.134 0.001). Angular 0.6°, 0.013) 0.7°, 0.005). precision (p < 0.05). for (Point 1)(p 0.001) Deviation differences within parts not significant. similar. combined can be recommended anterior implants used.