Dental impression technique using optoelectronic devices

3D Digital Impression Systems Compared with Traditional Techniques in Dentistry: A Recent Data Systematic Review

Materials ◽

10.3390/ma13081982 ◽

2020 ◽

Vol 13 (8) ◽

pp. 1982 ◽

Cited By ~ 4

Author(s):

Marco Cicciù ◽

Luca Fiorillo ◽

Cesare D’Amico ◽

Dario Gambino ◽

Emanuele Mario Amantia ◽

...

Keyword(s):

New Technologies ◽

Digital Impression ◽

New Device ◽

Advantages And Disadvantages ◽

Impression Technique ◽

Impression Materials ◽

Key Factor ◽

Dental Impression ◽

Digital Or

The advent of new technologies in the field of medicine and dentistry is giving improvements that lead the clinicians to have materials and procedures able to improve patients’ quality of life. In dentistry, the last digital techniques offer a fully digital computerized workflow that does not include the standard multiple traditional phases. The purpose of this study is to evaluate all clinical trials and clinical randomized trials related to the digital or dental impression technique in prosthetic dentistry trying to give the readers global information about advantages and disadvantages of each procedure. Data collection was conducted in the main scientific search engines, including articles from the last 10 years, in order to obtain results that do not concern obsolete impression techniques. Elsevier, Pubmed and Embase have been screened as sources for performing the research. The results data demonstrated how the working time appears to be improved with digital workflow, but without a significant result (P = 0.72596). The papers have been selected following the Population Intervention Comparison Outcome (PICO) question, which is related to the progress on dental impression materials and technique. The comparison between dentists or practitioners with respect to classic impression procedures, and students open to new device and digital techniques seem to be the key factor on the final impression technique choice. Surely, digital techniques will end up supplanting the analogical ones altogether, improving the quality of oral rehabilitations, the economics of dental practice and also the perception by our patients.

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Comparison of double-phase impression technique in 1 step and 2 steps by evaluating dimensional stability and accuracy of condensation silicones

Macedonian Pharmaceutical Bulletin ◽

10.33320/maced.pharm.bull.2017.63.01.006 ◽

2018 ◽

Vol 63 (01) ◽

pp. 55-61

Author(s):

Borjan Naumovski ◽

Jadranka Bundevska ◽

Biljana Kapusevska

Keyword(s):

Dimensional Stability ◽

Impression Material ◽

Impression Technique ◽

Impression Materials ◽

Double Phase ◽

Dental Impression ◽

Master Model ◽

Stability And Accuracy ◽

Plaster Model ◽

Selection Of

The diverse viscosities of silicone impression materials are suited for their use in various impression techniques, intended to improve the precision of the cast impression in the form of a plaster model. The purpose of this research is to determine the dimensional stability and accuracy of the double-phase impression technique in 1 step and 2 steps by using a condensation silicone impression material. This research was carried out by using a precise stainless-steel master model and an individual aluminum tray. Comparing the abutments of the master model and the abutments of the double-phase impression technique in 2 steps, showed that they are wider on average 81 µm, while the abutments from the double-phase impression technique in 1 step are on average 281 µm wider in diameter. After analyzing the results obtained in relation to the diameter of the abutments, it can be concluded that the double-phase impression technique in 2 steps is dimensionally more stable and accurate compared to the double-phase impression technique in 1 step. This study shows that dimensional stability and accuracy of impression materials also depend on the selection of appropriate impression technique and proper performance in order to obtain a high quality dental impression that will be the basis for an accurate fixed-prosthodontic fabrication. Keywords: silicone impression material, impression technique, fixed partial dentures, dimensional stability and accuracy

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COMPARATIVE CHARACTERISTICS OF TRANSFERS SPLINTING TECHNIQUES IN THE PROCESS OF TAKING ONE-STAGE DOUBLE-LAYERED DENTAL IMPRESSIONS BY MEANS OF OPEN TRAY IMPRESSION TECHNIQUE

Art of Medicine ◽

10.21802/artm.2020.2.14.59. ◽

2020 ◽

pp. 65-64

Author(s):

B. L. Pelekhan ◽

М. М. Rozhko ◽

L. І. Pelekhan

Keyword(s):

Alveolar Ridge ◽

Impression Material ◽

Dental Floss ◽

Impression Technique ◽

Custom Made ◽

Key Factor ◽

Dental Impression ◽

The Cost ◽

Clinical Cases

Abstract. According to conclusions of ITI World Congress (2018), the accuracy of the dental impression determines the quality of the working model and, consequently, the fixation of the prosthetic restorations at the final stage. Inaccurate dental impression will inevitably lead to technical and biological complications (Wolfart S., 2016). According to Lee and co-authors (2019), the accuracy of the dental impression is influenced by the chosen method, namely closed or open tray, the presence or absence of transfers splinting and the choice of impression material type. The most accurate impression has been proved to be an impression taken with the use of an open tray impression technique, by means of polyether impression material with preliminary transfers splinting using internally interfaced implant system. The objective of the research was to evaluate the quality of implants placement transferring to the model by comparative analysis of different methods of clinical transfers splinting in order to take impressions using an open tray impression technique. Twelve clinical situations were studied. Four groups were formed according to the method of transfer splinting. Each group included 3 clinical cases. Impressions were taken with the use of an open tray impression technique in all clinical cases with preliminary custom-made trays with holes in the implants projections. A grading scale was created when assessing the quality of transfer splinting as a key factor in the accuracy of implant placement transferring. Each of the groups received from 1 to 4 points where 1 point was the worst result according to this criterion and 4 points meant the best one. Among the criteria for splinting quality evaluation, 1-3 criteria were considered to be subjective, criterion 4 was considered to be objective. Therefore, criterion 4 received coefficient ×2 in order to increase the objectivity of the results evaluation. There were 4 criteria: The simplicity of the technique and the time spent splinting. The cost of the technique. Passivity when fixing the bridge prosthetic restoration after manufacturing. Radiologically measured distance between the centers of implant analogues on the model relative to each other after an impression taking by means of different splinting techniques and deviation of the value from the position of the centers of implants heads tops after osseointegration according to CT scan. Analyzing the results of the research, splinting techniques were ranked according to the obtained points. Research group 1 scored 6 points using dental floss and flowable compomer. A considerable amount of time was spent splinting with relatively inexpensive technology. The passivity of the fixation was the worst in comparison with other methods and the largest error was determined radiographically. Group 4 scoring 17 points was determined as the best of the chosen techniques. Despite the high cost of the chosen technique, prosthetic restorations made after transfers splinting by means of this technique had the highest fixation accuracy and the lowest deviation of the implants analogues on the model radiographically in comparison with the position of the implants in the upper alveolar ridge and lower alveolar ridge due to the cost of the material based on poly-vinyl siloxane.

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