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Tytuł artykułu

The influence of storage conditions on the physicochemical properties and dimensional accuracy of the alginate impressions

Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: Alginate impression materials are the most commonly used masses for taking impressions. They are characterized by good relation of properties to the price. However, the main problem associated with use of the impression masses is dimensions stability. Manufacturers of alginate masses recommend storage impression without any source of moisture, but dentists frequently store impressions wrapped in a wet materials. This may be the a reason of changes in dimensions and other properties. Moreover, it is recognized, that casting the model in the soon after making impression guarantee better dimensional accuracy. However, models are made usually after 24h. For some masses producers claim unequivocally, that the impressions can be stored for up to 168 h without changing the dimensions. So in this study was investigates how storage conditions affect chosen properties of alginate mass, including the accuracy of the models. Design/methodology/approach: Samples were prepared according to the manufacturer instruction and divided into 5 groups. Measurements were made 20 min after taking the impression and after 24h/168h of storage with/ without the resource of moisture. The measurements of Shore A hardness, tensile strength, mass changes and dimensional changes were made. Accuracies of the dental stone models were investigated with models manufactured after 20 min and 168 h after impressions, in comparison to the master model. Findings: The study showed that the storage conditions and time of storage had influence on properties of alginate impression mass. The resource of moisture has got an influence on dimensions and mass changes, tensile strength, elongation and shore A hardness. The results show that the use of the resource of moisture may be a cause of unfavourable changes in the gypsum model dimensions. Research limitations/implications: The storing of the alginate impressions with the resource of moisture is commonly practiced by the doctors, but it inconsistent with the manufacturer's recommendation. Practical implications: The method storing of the alginate impressions determined not only the materials properties, but also the clinical properties of final products like dentures. Originality/value: The significant of the method of the storing of alginate impression materials on the chosen properties of the materials and the accuracy of the dental stone models were shown.
Rocznik
Strony
68--76
Opis fizyczny
Bibliogr. 22 poz., rys., tab., wykr.
Twórcy
  • Faculty of Mechanical Engineering, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland
autor
  • Nova Clinic, ul. Jankego 22, 40-612 Katowice, Poland
autor
  • Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland
autor
  • Medical College of Silesian Province, Department of Dental Technicians, ul. 3 Maja 63, Zabrze 41-800, Poland
autor
  • Faculty of Mechanical Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland
Bibliografia
  • [1] A. Mangano, M. Beretta, G. Luongo. C. Mangano, F. Mangano, Conventional vs. Digital Impressions: Acceptability, Treatment Comfort and Stress Among Young Orthodontic Patients, Open Dent Journal 31 (2018) 118-124.
  • [2] K.J. Ferro, S.M. Morgano. C.F. Driscoll, M.A. Freilich, A.D. Guckes, K.L. Knoernschild, et al. (Eds.), The glossary of prosthodontic terms: Ninth Edition, Journal of Prosthetic Dentistry 5 (2017) 117-105.
  • [3] R.G. Craig, J.M. Powers, J.C. Wataha, Dental Materials properties and manipulation, C.V. Mosby, New Delhi, India, 2000.
  • [4] S.J. Bonsor, G.J. Pearson, A Clinical Guide to Applied Dental Materials, Elsevier, United Kingdom, 2013, 237-273.
  • [5] S. Bonsor, G. Pearson, A clinical guide to applied dental materials, Elsevier, Amsterdam, 2013.
  • [6] B. ldris, F. Houston. N. Claffey, Comparison of the Dimensional Accuracy of One- and Two-step Techniques with the use of Putty/wash Addition Silicone Impression Materials, Journal of Prosthetic Dentistry 74/5 (1995) 35-41.
  • [7] Z. Raszewski, M. Jałbrzykowski, Alginate stability during a time, Scholars Journal of Applied Medical Sciences 5/10E (2017) 4128-4139.
  • [8] S.Y. Chen, W.M. Liang, F.N. Chen, Factors affecting the accuracy of elastometric impression materials, Journal of Prosthetic Dentistry 32 (2004) 603-609.
  • [9] A.B. Garrofé, B.A. Ferrari, M. Picca, A.E. Kaplan, Linear Dimensional Stability of Irreversible Hydrocolloid Materials Over Time, Acta Odontol Latinoam 28/3 (2015) 58-62.
  • [10] N. Özkalayci, A. Köroğlu, Ç. Börekçi, Storage Condition And Period Effect On The Dimensional Stability Of Irreversible Hydrocolloid Impression Materials, Cumhuriyet Dental Journal 20/1 (2017) 30-39.
  • [11] B.I. Cohen, M. Pagnillo, A.S. Deutsch, B.L. Musikant, Dimensional accuracy of three ditferent alginate impression materials, The Journal of Prosthodontics 4/3 (1995) 195-199.
  • [12] http://kromopanusa.com/wp-content/uploads/2014/04/alginati_brochure_en.pdf.
  • [13] ISO 7619-1:2010 Rubber, vulcanized or thermoplastic - Determination of indentation hardness - Part I: Durometer method (Shore hardness).
  • [14] A.N. Gent, On the relation between indentation hardness and Young's modulus, Institution of Rubber Industry - Transactions 34 (1958) 46-57.
  • [15] E. Jabłońska-Stencel, W. Pakieła, A. Mertas, E. Bobela, J. Kasperski, G. Chladek, Effect of SilverEmitting Filler on Antimicrobial and Mechanical Properties of Soft Denture Lining Material, Materials 11 (2018) 318.
  • [16] S. Garg, S. Mittal, S. Bansal, G. Kansal, A Study on Imbibition and Syneresis in Four Commercially Available Irreversible Hydrocolloid (Alginate) Impression Materials, International Journal of Prosthodontics and Restorative Dentistry 2/1 (2012) 1-4.
  • [17] H.O. Gumus, M. Dincel, S.K. Buyuk, H.I. Kilinc, M.S. Bilgin, M. Zortuk, The effect of pouring time on the dimensional stability of casts made from conventional and extended-pour irreversible hydrocolloids by 3D modelling, Journal of Dental Sciences 10/3 (2015) 275-281.
  • [18] J.A. Todd, L.J. Oesterle, S.M. Newman, W.C. Shellhartd, Dimensional changes of extended-pour alginate impression materials, American Journal of Orthodontics and Dentofacial Orthopedics 143 (2013) 55-63.
  • [19] M.P. Walker, J. Burckhard, D.A. Mitts, K. B. Williams, Dimensional change over time of extended-storage alginate impression materials, Angle Orthodontist 80/6 (2010) 1110-1115.
  • [20] G. Chladek, J. Żmudzki , J. Kasperski, Long-Term Soft Denture Lining Materials, Materials 7 (2014) 5816-5842.
  • [21] O.P. Shaba, l.C. Adegbulugbe, O.H. Oderinu, Dimensional stability of alginate impression material over a four hours' time frame, Nigerian Quarterly Journal of Hospital Medicine 17 (2007) 1-4.
  • [22] U. Nassar, T. Aziz, C. Flores-Mir, Dimensional stability of irreversible hydrocolloid impression materials as a function of pouring time: a systematic review, Journal of Prosthetic Dentistry 106/2 (2011) 126-133.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-15051086-bc39-4e40-97f0-b629f29af659
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