| Author/Editor | Golob, Janina; Kanduti, Domen; Skrjanc, Lenart; Carrico, Caroline K.; Deeb, George R. | |
| Title | Comparison of accuracy and time for four implant placement techniques supporting fixed-partial denture | |
| Type | članek | |
| Publication year | 2022 | |
| Volume | str. str. | |
| ISSN | 0160-6972 - The Journal of oral implantology | |
| Language | eng | |
| Abstract | Introduction: Various guiding methods are used to place implants. This ex vivo pilot study used a convenience sample to examine time and accuracy for placement of two dental implants supporting a three-unit fixed prosthesis on a simulation model using a freehand and three guided placement techniques. Material and methods: Four operators with no prior implant placement experiences were randomly assigned placement of two maxillary or mandibular implants for a fixed prosthesis. Techniques included dynamic navigation (DN), static guide (SG), template-based guide (TBG) and freehand placement (FH). Preoperative and operative times were recorded. Discrepancies between the planned and placed implant positions were assessed by superimposing preoperative and postoperative CBCT scans. Data were analyzed with repeated measures regression with Tukey's adjusted pairwise comparisons (α = 0.05). Results: Dynamic navigation was associated with the longest operative time (13.5 mins vs 5-10.2, p=0.0001) but overall fastest when incorporating preoperative time (32.1 minutes vs. 143-181.5, p<0.0001). All deviations measures were significantly associated with the placement method (p<0.05) except apex vertical deviation (p=0.3925). Implants placed by SG had significantly lower entry 2D deviation than the other methods, particularly on the mandible. The DN and SG methods had significantly lower Apex 3D and overall angle deviations, again particularly on the mandible. The mandible had significantly higher deviations than maxilla. Conclusions: Within the limitations of this study, implant placement by novice operators is more accurate when using dynamic and static guidance in comparison to freehand and template-based techniques. | |
| Keywords | zobni vsadek različne metode dinamično in statično vodenje dental implant different methods dynamic and static guidance |