KHARTOUM, Sudan/LAS VEGAS, US: Accurate impression is crucial to the long-term success of dental implants since inaccuracies or errors occurring at any stage of the superstructure construction may result in complications or implant failure. A recent study evaluated the accuracy of the open and closed implant impression techniques in partially edentulous patients and found no significant differences between these two methods.
Researchers from the Department of Oral Rehabilitation in the Faculty of Dentistry at the University of Khartoum and the School of Dental Medicine at the University of Nevada, Las Vegas took 80 impressions from 40 patients—two for each patient—using the open-tray technique for the first one and the closed-tray technique for the second. Eighteen impressions in the maxillary arch and 22 in the mandibular arch were made. Of these, 13 were positioned in the anterior region and 27 in the posterior region. The horizontal distances between two impression copings were measured and compared to similar measurements on the master casts. In addition, the presence or absence of marginal discrepancies was evaluated.
The research team did not find any significant differences regarding horizontal measurements or in the marginal relationship for the two impression techniques, except for differences between the anterior and posterior regions for the closed-tray technique. There were also no statistically significant differences in the impression accuracy between the maxillary and the mandibular arches. In addition, there were no statistical differences between the two techniques for the intra-oral horizontal distances, compared with similar horizontal measurements on master casts.
“Within the limitation of this study, there were no differences in the impression accuracy between the open- and closed-tray techniques, in partially edentulous jaws with two adjacent implants. Also, there were no differences between the two impression techniques regarding marginal discrepancy. The position of the implant, in the maxilla or mandible, had no effect on the impression accuracy of both techniques,” the study authors concluded.
The study, titled “A prospective clinical study on implant impression accuracy”, was published in the December 2019 issue of the International Journal of Implant Dentistry.
Tags:
GUANGZHOU, China: Immediate loading of dental implants has become a popular option because it shortens treatment time, improves aesthetics and increases ...
BUDAPEST, Hungary: Previous studies have suggested that surface roughness is one of several key factors that influence the degree of biological integration ...
ZURICH, Switzerland: Dental implants have become a great treatment option to replace missing teeth, and various treatment concepts have reported high ...
KIRIKKALE, Turkey: It is known that some microorganisms can penetrate dentinal tubules and sometimes even survive effective irrigation solutions. At this ...
Proper 3D implant positioning is a crucial factor for predictable implant and prosthodontic treatment. Guided osteotomy preparation and placing implants ...
The procedure of implantation is becoming an increasingly popular method for replacing teeth. The critical factor in the achievement of a therapeutic and ...
SEOUL, South Korea: Even though intra-oral scanners have been around for more than three decades and their use in dental practice is increasing, few ...
An 82-year-old patient presented for complete rehabilitation. The existing maxillary bridge showed Grade III mobility and the residual mandibular teeth ...
The long-term clinical success of dental implants is dependent upon osseointegration, which is defined as a direct functional and structural connection ...
Autotransplantation of teeth (ATT) is a promising approach that offers a blend of aesthetic, functional and economic benefits for patients with missing or ...
Live webinar
Thu. 18 July 2024
8:00 pm EST (New York)
Live webinar
Tue. 6 August 2024
6:00 pm EST (New York)
Live webinar
Tue. 13 August 2024
7:00 pm EST (New York)
Live webinar
Wed. 14 August 2024
12:30 pm EST (New York)
Live webinar
Wed. 21 August 2024
9:00 am EST (New York)
Dr. Jim Lai DMD, MSc(Perio), EdD, FRCD(C)
Live webinar
Wed. 28 August 2024
8:00 pm EST (New York)
Live webinar
Mon. 2 September 2024
5:00 am EST (New York)
To post a reply please login or register