Accuracy of a Digital Impression System Based on Parallel Confocal Laser Technology for Implants with Consideration of Operator Experience and Implant Angulation and Depth

Abstract

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Evaluation of the Accuracy of Conventional and Digital Impression Techniques for Implant Restorations

“…An improper connection can increase biological problems and cause mechanical issues such as occlusal problems and screw loss from the abutment or implant. Therefore, an accurate impression is extremely important to produce a reliable cast …”

“…To date, several implant impression techniques, such as the open tray and closed tray, and different impression transfers and materials have been investigated regarding their accuracy …”

“…In some cases, parallel installation of the implants is impossible, and it is necessary to angle them during surgery . The effect of angulation on the accuracy of casts has been investigated, but some studies have shown that an angle of less than 30° does not affect cast accuracy …”

Digital versus analog complete-arch impressions for single-unit premolar implant crowns: Operating time and patient preference

“…16 Interindividual and intraindividual differences among operators have been reported in dentistry, 17 but little is known about these differences in the field of impression making. Therefore, interindividual differences were eliminated by using a single-operator protocol.…”

Clinical and laboratory passive fit assessment of implant‐supported zirconia restorations fabricated using conventional and digital workflow

“…Previous studies investigated the effect of angulation between implants on accuracy of impressions and restorations . Several authors have researched the impact of implant angulation on impression accuracy.…”