Evaluation of dimensional changes and detail reproduction of three type IV dental gypsums

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HEKMATFAR SOMAYEH; MOUSAVI SAHAR; Mohammadian hamed; JAFARI KARIM

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Journal Paper

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Journal: Journal of Dental Medicine Year:2019 | Volume:32 | Issue:2 Page(s): 92-97

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Information Journal Paper

Title

Evaluation of dimensional changes and detail reproduction of three type IV dental gypsums

Author(s)

HEKMATFAR SOMAYEH | MOUSAVI SAHAR | Mohammadian hamed | JAFARI KARIM | Issue Writer Certificate

Keywords

Calcium sulfateQ2

Dimensional changeQ3

Physical propertiesQ2

Abstract

Background and Aims: Gypsum products are used for several different purposes. Adaptation and success of casting restorations are dependent on dimensional accuracy, strength, and reproduction of details of dental gypsums. This study was designed to evaluate the Dimensional changes and accurate details reproduction of three type IV dental gypsums. Materials and Methods: 60 samples in 3 groups of dental gypsums of G30, Yeti Rock and FujirockEP were evaluated. The detail reproduction of 50 micron scratched line was analyzed by a microscope at 12× magnification. The samples were assayed for Dimensional changes at 2 and 24 hours and 1 week after pouring. Photograph images were taken from samples in fixed distance by a camera (Canon D600) and analyzed in corel draw software. Data were analyzed using ANOVA and chi-square (P<0. 05). Results: There were significant differences in the details reproduction between three gypsums (P≤ 0. 05) and the highest values was for Fujirock EP, Yeti Rock. The G30 did not reconstruct the details. There was no significant difference in the Dimensional changes of the evaluated gypsums based on time (P≥ 0. 05). Conclusion: All three different gypsums evaluated in this study showed the dimensional stability during one week. Fujirock EP and Yeti Rock could reconstruct the details and G30 gypsum could not.

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APA: Copy

HEKMATFAR, SOMAYEH, MOUSAVI, SAHAR, Mohammadian, hamed, & JAFARI, KARIM. (2019). Evaluation of dimensional changes and detail reproduction of three type IV dental gypsums. JOURNAL OF DENTAL MEDICINE, 32(2 ), 92-97. SID. https://sid.ir/paper/383888/en

Vancouver: Copy

HEKMATFAR SOMAYEH, MOUSAVI SAHAR, Mohammadian hamed, JAFARI KARIM. Evaluation of dimensional changes and detail reproduction of three type IV dental gypsums. JOURNAL OF DENTAL MEDICINE[Internet]. 2019;32(2 ):92-97. Available from: https://sid.ir/paper/383888/en

IEEE: Copy

SOMAYEH HEKMATFAR, SAHAR MOUSAVI, hamed Mohammadian, and KARIM JAFARI, “Evaluation of dimensional changes and detail reproduction of three type IV dental gypsums,” JOURNAL OF DENTAL MEDICINE, vol. 32, no. 2 , pp. 92–97, 2019, [Online]. Available: https://sid.ir/paper/383888/en

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