Dental Implants Clinical Trial
Official title:
Accuracy Evaluation of Full-arch Implant Impressions Using Different Workflows: A Prospective Study
The aims of this clinical study are: 1) to compare the accuracy of conventional versus digital impression techniques for implant impressions; 2) to assess the passive fit of the prosthesis constructed from the most accurate impression. Thirty edentulous patients who received 4 - 6 implant and indicated for implant-supported fixed prosthesis will be invited. Full-arch conventional and digital impressions will be made for each patient. Accuracy evaluation will be made and the prosthesis will be constructed from the most accurate impression. Passive fit of the zirconia implant-supported prostheses will be verified at the try-in stage clinically and radiographically.
Status | Not yet recruiting |
Enrollment | 30 |
Est. completion date | September 1, 2024 |
Est. primary completion date | August 2, 2024 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: Edentulous patients who received implant surgery and indicated for implant-supported fixed prosthesis. Patients rehabilitated with fixed full-arch interim prostheses with 4 - 6 implants Exclusion Criteria: Patients with severe systemic diseases, dementia, or muscle tremors will be excluded from the study. |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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University of Sharjah |
Akalin ZF, Ozkan YK, Ekerim A. Effects of implant angulation, impression material, and variation in arch curvature width on implant transfer model accuracy. Int J Oral Maxillofac Implants. 2013 Jan-Feb;28(1):149-57. doi: 10.11607/jomi.2070. — View Citation
Al Quran FA, Rashdan BA, Zomar AA, Weiner S. Passive fit and accuracy of three dental implant impression techniques. Quintessence Int. 2012 Feb;43(2):119-25. — View Citation
Alikhasi M, Siadat H, Nasirpour A, Hasanzade M. Three-Dimensional Accuracy of Digital Impression versus Conventional Method: Effect of Implant Angulation and Connection Type. Int J Dent. 2018 Jun 4;2018:3761750. doi: 10.1155/2018/3761750. eCollection 2018. — View Citation
Lee H, So JS, Hochstedler JL, Ercoli C. The accuracy of implant impressions: a systematic review. J Prosthet Dent. 2008 Oct;100(4):285-91. doi: 10.1016/S0022-3913(08)60208-5. — View Citation
Lee SJ, Gallucci GO. Digital vs. conventional implant impressions: efficiency outcomes. Clin Oral Implants Res. 2013 Jan;24(1):111-5. doi: 10.1111/j.1600-0501.2012.02430.x. Epub 2012 Feb 22. — View Citation
Papaspyridakos P, Hirayama H, Chen CJ, Ho CH, Chronopoulos V, Weber HP. Full-arch implant fixed prostheses: a comparative study on the effect of connection type and impression technique on accuracy of fit. Clin Oral Implants Res. 2016 Sep;27(9):1099-105. doi: 10.1111/clr.12695. Epub 2015 Sep 16. — View Citation
Sorrentino R, Gherlone EF, Calesini G, Zarone F. Effect of implant angulation, connection length, and impression material on the dimensional accuracy of implant impressions: an in vitro comparative study. Clin Implant Dent Relat Res. 2010 May;12 Suppl 1:e63-76. doi: 10.1111/j.1708-8208.2009.00167.x. Epub 2009 May 8. — View Citation
Vigolo P, Millstein PL. Evaluation of master cast techniques for multiple abutment implant prostheses. Int J Oral Maxillofac Implants. 1993;8(4):439-46. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Accuracy of conventional versus digital impression techniques for implant impressions | Following the best-fit algorithm, the accuracy will be measured in terms of 3D comparison to evaluate the 3D deviations between the digital files (STL files from IOS and digitized conventional working casts) limited to the area of scan bodies. | 6 months | |
Primary | The passive fit of the prosthesis constructed from the most accurate impression | Clinical assessment of the prosthesis at the try-in stage using one screw test. | 6 months | |
Primary | The passive fit of the prosthesis | Radiographic assessment of the prosthesis by periapical radiograph | 6 months |
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