Volume 6, Issue 2 (3-2021)                   J Res Dent Maxillofac Sci 2021, 6(2): 14-21 | Back to browse issues page

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Farnoosh F, Ansari Lari H, Fatemi M. Comparative Study of the Effect of Storage Environment Temperature on the Accuracy of Hygedent and Chromogel Alginate Impression Materials. J Res Dent Maxillofac Sci 2021; 6 (2) :14-21
URL: http://jrdms.dentaliau.ac.ir/article-1-300-en.html
Comparative Study of the Effect of Storage Environment Temperature on the Accuracy of Hygedent and Chromogel Alginate Impression Materials
F Farnoosh1 , H Ansari Lari * 2, M Fatemi3
1- Faculty of Dentistry, Islamic Azad University of Medical Sciences, Tehran, Iran
2- Prosthodontics Dept, Membership of Dental Material Research Center, Faculty of Dentistry, Islamic Azad University of Medical Sciences, Tehran, Iran , homeira2008@yahoo.com
3- Dental Materials Dept, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Abstract:   (2095 Views)

Background and Aim: Considering the lack of sufficient and even contradictory studies on the effect of temperature-dependent dimensional changes of alginate before pouring, this study aimed to investigate the effect of storage temperature of Hygedent and Chromogel alginate molds on dimensional stability. 
Materials and Methods: In this in-vitro experimental study, dimensional changes of two types of alginate were investigated indirectly by measuring a type III stone cast. Ninety molds of each alginate were obtained from a metal model and stored at 1±4, 1±25, and 1±40°C. The casting was performed 12 minutes, 1 hour, and 4 hours after impression taking. The molds were incubated with an approximate humidity of 100%. The diameter, width, and height of the gypsum casts were measured by a digital caliper with an accuracy of 0.01 mm. Dimensional changes of two alginates in three separate directions were statistically analyzed by three-way analysis of variance (ANOVA) and post-hoc test due to the significant difference.
Results: There was no statistically significant difference in width changes at different temperatures, but regarding the diameter, there was a significant difference between 40°C Chromogel and 25°C Hygedent. Regarding the height, only 40°C Hygedent showed a significant difference at 4 hours compared to 12 minutes (P=0.000, 0.26, and 0.000, respectively). However, no statistically significant difference was observed in other temperatures and times (P>0.05). In most groups, dimensional changes of all samples were not within the clinical standard range (1%).
Conclusion: It seems that the dimensional stability of Hygedent and Chromogel alginates is affected by storage temperature, pouring time, and type of alginate.

Keywords: Alginate, Temperature, Time, Dimensional Stability
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Type of Study: Case report | Subject: Dental implant
References
1. Kulkarni MM, Thombare RU. Dimensional Changes of Alginate Dental Impression Materials-An Invitro Study. J Clin Diagn Res. 2015 Aug;9(8):ZC98-ZC102. [DOI:10.7860/JCDR/2015/13627.6407] [PMID] [PMCID]
2. Todd JA, Oesterle LJ, Newman SM, Shellhart WC. Dimensional changes of extended-pour alginate impression materials. Am J Orthod Dentofacial Orthop. 2013 Apr;143(4 Suppl):S55-63.. [DOI:10.1016/j.ajodo.2012.06.016] [PMID]
3. Sayed ME, Gangadharappa P. Three-dimensional evaluation of extended pour alginate impression materials following variable storage time intervals and conditions. Indian J Dent Res. 2018 Jul-Aug;29(4):477-86. [DOI:10.4103/ijdr.IJDR_426_17] [PMID]
4. Mousavi Sahar, Rahbar Mahdi, Rostamzadeh Fatemeh, Jafaria Karim, Hekmatfar Somayeh. Dimensional Stability of Casts Derived from Three Types of Alginate at Different Times After Impression. Pesqui. Bras. Odontopediatria Clín. Integr. [Internet]. 2019 [cited 2021 Feb 14] ; 19: e4137. Available from: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-46322019000100338&lng=en. [DOI:10.4034/PBOCI.2019.191.60]
5. Mehraban Jahromi S, Mobaieni M, Atashrazm P, Tamizi M, Yeganeh T, Nematollahi F. Comparing the Effect of Storage Time on Dimensional Changes of Two Alginate Impression Materials (Golchay & Bayer). J Res Dent Sci. 2014;11(3):136-41.
6. Farzin M, Panahandeh H. Effect of pouring time and storage temperature on dimensional stability of casts made from irreversible hydrocolloid. J Dent (Tehran). 2010 Fall;7(4):179-84.
7. Penfold RDRS, Brandt WC, Miranda ME, Vitti RP. Evaluation of dimensional stability and details reproduction of alginate molds storage in different times and temperature. Braz Dent Sci. 2018 Jan/Mar;21(1). [DOI:10.14295/bds.2018.v21i1.1501]
8. Amirian K, Rezaee M, Taheri M, Majidi Rad H, Larijani M, Nakhaee M, Khafri S, AlHavaz A. Effect of Different Storage Times on Dimensional Stability of Casts Made of Two Alginates: Tropicalgin and Chromogel. J Isfahan Dent Sch 2018; 13(4): 391-402.
9. Izadi A, Badamchizadeh S, Mojaver Kahnamouyi H, Marefat H. Dimensional Stability of Polyether, Alginate, and Silicone Impression Materials After Disinfection With 2% Sanosil Through the Immersion Technique. Avicenna J Dent Res. 2014;6(2):49-52. [DOI:10.17795/ajdr-20601]
10. Kukkila J, Thopegowda N, K H, Shetty N, Voddya S, Prabhu S, et al. Impact of Storage Environments on the Dimensional Stability of Irreversible Hydrocolloid Alginate Impression used in Dentistry. Int J Health Rehabil Sci. 2014;3(1):24-9. [DOI:10.5455/ijhrs.000000048]
11. Rohanian A, Ommati Shabestari G, Zeighami S, Samadi MJ, Shamshiri AR. Effect of storage time of extended-pour and conventional alginate impressions on dimensional accuracy of casts. J Dent (Tehran). 2014 Nov;11(6):655-64.
12. Imbery TA, Nehring J, Janus C, Moon PC. Accuracy and dimensional stability of extended-pour and conventional alginate impression materials. J Am Dent Assoc. 2010 Jan;141(1):32-9. [DOI:10.14219/jada.archive.2010.0018] [PMID]
13. Alcan T, Ceylanoğlu C, Baysal B. The relationship between digital model accuracy and time-dependent deformation of alginate impressions. Angle Orthod. 2009 Jan;79(1):30-6. [DOI:10.2319/100307-475.1] [PMID]
14. Atashrazm P, Valaee N, Mobini MR, ZamaniAlavijeh L. Comparison of the Dimensional Changes of Ariadent and Bayer Alginate Impression Materials (Invitro). J Res Dent Sci. 2012;8(4):168-74.
15. Neshandar M, Baloch F, Mousavisedighi S, Bitaraf T. Evaluation of the Effect of Two Types of Autopolymerizing Acrylic Resin Splints on Dimensional Accuracy in Open Tray Impression Technique. J Res Dent maxillofac Sci. 2019; 4 (4) :23-27. [DOI:10.29252/jrdms.4.4.23]
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