Dental and Medical Problems

Dent Med Probl
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ISSN 1644-387X (print)
ISSN 2300-9020 (online)
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Dental and Medical Problems

2019, vol. 56, nr 1, January-March, p. 67–74

doi: 10.17219/dmp/101649

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

Evaluation of the effect of storage time and disinfectant solutions on the dimensional accuracy of impression materials with digital radiography

Ocena wpływu czasu przechowywania oraz roztworów odkażających na wierność odtwarzania kształtu przez materiały wyciskowe z użyciem radiografii cyfrowej

Hatice Özdemir1,A,B,C,D,E,F, Kader Azlağ Pekince2,A,E

1 Department of Prosthodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey

2 Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Karabük University, Turkey

Abstract

Background. The dimensional accuracy of impression materials has been evaluated for a long time, but thus far, digital radiography has not been used for this purpose. The dimensional accuracy of impression materials is very important for the final adaptation of dental prostheses.
Objectives. The objective of this study was to evaluate the effects of different disinfectant solutions and storage times on the dimensional stability of different impression materials by means of digital radiography.
Material and Methods. Polyether (PE), hydrocolloid (IH), condensation silicone (CS), and addition silicone (AS) materials were used for preparing impressions, taken from an acrylic master model with 2 vertical and 2 horizontal reference points. Water (W), sodium hypochlorite (SH) and a disinfectant solution without aldehyde (Z) were applied on the impressions. Half of the impressions were poured over immediately and half of them – 1 day after. Digital radiography was used to determine the dimensional accuracy of the impression materials. The data was analyzed with a variance analysis and Tukey’s multiple comparison test.
Results. While PE showed the smallest dimensional changes, IH showed the greatest in all lines. Applying SH and pouring 1 day after caused the greatest dimensional changes in all impression materials.
Conclusion. Different disinfectant solutions and storage times had a different effect on the impressions, but the dimensional changes were clinically acceptable.

Key words

dimensional accuracy, storage time, impression material, digital radiography, disinfection solution

Słowa kluczowe

wierność odtwarzania kształtu, czas przechowywania, materiał wyciskowy, radiografia cyfrowa, roztwór odkażający

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