Influence of time, temperature and humidity on the accuracy of alginate impressions.

Authors

  • Gotam Das CPSP LUMHS PDA KKU
  • Muhammad Waqar Hussain CPSP PMDC AIMDC
  • Saurabh Chaturvedi
  • Talib Amin Naqash
  • Abdul Razzaq Ahmed
  • Muhammad Haseeb Rana
  • Adel M Abdelmonem

Abstract

Background The goal of the current in vitro study was to assess the dimensional accuracy of dental impressions when stored at different times, temperature and humidity. Methods: Impressions were poured to an aluminium triangular die and three teeth placed at the three corners of the die. A total of 130 impressions were made, in which 10 were poured immediately following manufacturers’ instructions and the remaining 120 specimens were divided into two groups on the basis of relative humidity during storage. Group-1: 100%, Group-2: 50% relative humidity. Impression was poured with type IV gypsum. The below points were chosen to determine the length between in each of the specimens using the traveling microscope with 10x magnifications after 24 hours of model recovery for calculating the effect of changes in storage conditions- relative humidity, temperature and delay in pouring the impressions, on dimensional accuracy. Results: Analysis of the results revealed that the casts achieved by pouring alginate impressions without delay were most accurate than the delay pouring. With the increase in temperature and time, the distance between the points increased and the casts obtained were bigger. Conclusion: Irreversible hydrocolloids should be poured immediately for optimum dimensional stability. Keywords: Dental impressions; irreversible hydrocolloid; dimensional accuracy

Author Biographies

Gotam Das, CPSP LUMHS PDA KKU

Prosthodontics college of Dentistry KKU, KSA.

Saurabh Chaturvedi

Prosthodontics college of Dentistry KKU, KSA.

Talib Amin Naqash

Prosthodontics college of Dentistry KKU, KSA.

Abdul Razzaq Ahmed

Prosthodontics college of Dentistry KKU, KSA.

References

References

Nassar U, Aziz T, Flores-Mir C. Dimensional stability of irreversible hydrocolloid impression materials as a function of pouring time: A systematic review J Prosthet Dent. 2011;106:126-133.

Anusavice KJ. Phillips’ science of dental materials. 11th ed. St. Louis: Saunders; 2003. p. 205-254.

Rosenstiel SF, Land MF, Fujimoto J. Contemporary fixed prosthodontics. 4th ed. St. Louis: Mosby Inc.; 2006. p. 35-48.

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;29(4):477-486.

Doubleday B. Impression materials. Br J Orthod 1998; 25:133-40.

Babiker GH, Khalifa N, Alhajj MN. Dimensional Accuracy of Alginate Impressions Using Different Methods of Disinfection With Varying Concentrations. Compend Contin Educ Dent. 2018;39(1):e17-e20.

Fellows CM, Thomas GA. Determination of bound and unbound water in dental alginate irreversible hydrocolloid by nuclear magnetic resonance spectroscopy. Dent Mater. 2009;25:486-493.

Garrofé AB, Ferrari BA, Picca M, Kaplan AE. Linear dimensional stability of irreversible hydrocolloid materials over time. Acta Odontol Latinoam. 2015;28(3):258-62.

McCabe JF, Walls AWG. Applied dental materials. 9th ed. Oxford: Blackwell Publishing Ltd; 2008. p. 154-162.

Ashley M, McCullagh A, Sweet C. Making a good impression: (a ‘how-to’ paper on dental alginate). Dent Update. 2005;32:169-175.

Erbe C, Ruf S, Wöstmann B, Balkenhol M. Dimensional stability of contemporary irreversible hydrocolloids: humidor versus wet tissue storage. J. Prosthet Dent. 2012;108(2):114-122.

Rentzia A, Coleman DC, O'Donnell MJ, Dowling AH, O'Sullivan M. Disinfection procedures: their efficacy and effect on dimensional accuracy and surface quality of an irreversible hydrocolloid impression material. J Dent. 2011 Feb;39(2):133-140.

Raszewski Z, Nowakowska-Toporowska A, Weżgowiec J, Nowakowska D. Effect of water quantity and quality on the properties of alginate impression materials. Dent Med Probl. 2018;55(1):43-48.

Cohen BI, Pagnillo M, Deutsch AS, Musi- Kant BL. Dimensional accuracy of three different alginate impression materials. J Prosthodont 1995;4:195-199.

Sedda M, Casarotto A, Raustia A, Borracchini A. Effect of storage time on the accuracy of casts made from different irreversible hydrocolloids. J Contemp Dent Pract. 2008;9(4):59-66.

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;141(1):32-39.

Powers JM, Sakaguchi RL. Craig‘s restorative dental materials. 12th ed. St. Louis: Mosby Elsevier; 2006. p. 272-278.

Liu W, Zhao L, Lin C, Fan Z, Liu B. The influence of the negative ion powder on the properties of alginate impression materials. Dent Mater J. 2019;31;38(4):522-527.

Cervino G, Fiorillo L, Herford AS, Laino L, Troiano G, Amoroso G, Crimi S, Matarese M, D'Amico C, Nastro Siniscalchi E, Cicciù M. Alginate Materials and Dental Impression Technique: A Current State of the Art and Application to Dental Practice. Mar Drugs. 2018;29;17(1). doi: 10.3390/md17010018

Ahmed AS, Charles PD, Cholan R, Russia M, Surya R, Jailance L. Antibacterial efficacy and effect of Morinda citrifolia L. mixed with irreversible hydrocolloid for dental impressions: A randomized controlled trial. J Pharm Bioallied Sci. 2015;7(2):S597- S599.

Martin N, Martin MV, Jedynakiewicz NM. The dimensional stability of dental impression materials following immersion in disinfecting solutions. Dent Mater 2007;23:760-768.

Saitoh S, Araki Y, Kon R, Katsura H, Taira M. Swelling/deswelling mechanism of calcium alginate gel in aqueous solutions. Dent Mater J 2000;19:396-404.

Rubel BS. Impression materials: a comparative review of impression materials most commonly used in restorative dentistry. Dent Clin North Am 2007;51:629-642.

Amalan A, Ginjupalli K, Upadhya N. Evaluation of properties of irreversible hydrocolloid impression materials mixed with disinfectant liquids. Dent Res J (Isfahan). 2013;10(1):65-73.

Damodara EK, Litaker MS, Rahemtulla F, McCracken MS. A randomized clinical trial to compare diagnostic casts made using plastic and metal trays. J Prosthet Dent 2010;104:364-371.

Van Noort R. Introduction to dental materials. 3rd ed. St. Louis: Mosby Elsevier; 2007. p. 181-204.

Patel RD, Kattadiyil MT, Goodacre CJ, Winer MS. An in vitro investigation into the physical properties of irreversible hydrocolloid alternatives. J Prosthet Dent 2010;104:325-332.

Draget KI, Stokke BT, Yuguchi Y, Urakawa H, Kajiwara K. Small-angle x-ray scattering and rheological characterization of alginate gels. 3. Alginic acid gels. Biomacromolecules 2003;4:1661-1668.

Wadhwa SS, Mehta R, Duggal N, Vasudeva K. The effect of pouring time on the dimensional accuracy of casts made from different irreversible hydrocolloid impression materials. Contemp Clin Dent. 2013;4(3):313–18.

Douglass JB, White JG, Mitchell RJ. Clinical acceptability of orthodontic retainers fabricated from stored alginate impressions. Am J Orthod Dentofacial Orthop. 1990;97(2):93-7.

Dahl BL, Dymbe B, Valderhaug J. Bonding properties and dimensional stability of hydrocolloid impression systems in fixed prosthodontics. J Prosthet Dent. 1985 Jun;53(6):796-800.

Chen SY, Liang WM, Chen FN. Factors affecting the accuracy of elastomeric impression materials. J Dent 2004;32:603-609.

Balkenhol M, Ferger P, Wöstmann B. Dimensional accuracy of 2-stage putty- wash impressions: influence of impression trays and viscosity. Int J Prosthodont 2007;20:573-575.

Draget KI, Gaserod O, Aune I, Andersen PO, Storbakken B, Stokke BT, et al. Effects of molecular weight and elastic segment flexibility on syneresis in Ca-alginate gels. Food Hydrocoll 2001;15:485-490.

Sedda M, Casarotto A, Raustia A, Borracchini A. Effect of storage time on the accuracy of casts made from different irreversible hydrocolloids. J Contemp Dent Pract. 2008;9(4):59-66.

Frey G, Lu H, Powers J. Effect of mixing methods on mechanical properties of alginate impression materials. J Prosthodont. 2005;14(4):221-225.

Published

2021-01-16

Issue

Vol. 32 No. 4-Sup 1 (2020): JOURNAL OF AYUB MEDICAL COLLEGE, ABBOTTABAD

Section

ORIGINAL ARTICLE

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