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Evaluation of photometric methods in assessment of dimensional stability of elastomeric impression materials

Evaluacija fotometrijskih metoda u ispitivanju dimenzionalne stabilnosti elastomernih otisnih materijala

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2016
987.pdf (6.360Mb)
Authors
Sinobad, Tamara
Contributors
Obradović-Đuričić, Kosovka
Nikolić, Zoran
Dodić, Slobodan
Lazić, Vojkan
Popović, Dušan
Doctoral thesis (Published version)
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Abstract
Dental impression materials are used to reproduce the form and relations of teeth and surrounding oral tissues, and the impressions are used for fabricating diagnostic and master casts. Dimensional stability of elastomeric impression materials under various conditions, is pivotal factor for the accuracy and durability of the final prosthetic restorations. It is defined as the ability of a material to retain its size and form over time. The aim of this study was to evaluate different possibilities of the original photometric methods in assessment of dimensional stability of elastomeric impression materials and to determine their efficiency and precision in comparison with the reference method recommended by the valid standards for dental elastomeric impression materials (ISO 4823:2000, ANSI/ADA Specification No.19). Five elastomeric impression materials were used in this study: two condensation silicones (Oranwash L - Zhermack and Xantopren L blue - Heraeus Kulzer), two addi...tion silicones (Elite HD + light body - Zhermack and Variotime Light Flow - Heraeus Kulzer) and one polyether (ImpregumTM Soft 3M ESPE). A specific stainless steel test block, made according to the recommendations of ISO standard, was used for the fabrication of the samples of tested impression materials. Dimensional stability of the impression materials was examined as a function of time (5min, 30min, 1h and 24h after removal from the test block) at the temperatures of 23ºC, 35ºC and 40ºC. The effect of each applied disinfectant (5.25% NaOCl, glutaraldehyde, benzalkonium chloride – Sterigum and aerosol with ethanol and isopropanol - Zeta 7) was tested as well..

U stomatologiji se otisni materijali upotrebljavaju za reprodukciju oblika i odnosa zuba i okolnih oralnih tkiva, a dobijeni otisci se koriste za izradu dijagnostičkih i master modela. Dimenzionalna stabilnost elastomernih otisnih materijala u različitim uslovima, važan je faktor koji direktno utiče na preciznost i trajnost indirektno izrađenih definitivnih zubnih nadoknada. Definiše se kao sposobnost materijala da zadrži svoju veličinu i oblik tokom vremena. Cilj ovog istraživanja je ispitivanje različitih mogućnosti originalnih fotometrijskih metoda u proceni dimenzionalne stabilnosti elastomernih otisnih materijala i utvrđivanje njihove efikasnosti i preciznosti u poređenju sa referentnom metodom koju preporučuju važeći standardi za elastomerne otisne materijale u stomatologiji (ISO 4823:2000, ANSI/ADA Specifikacija br.19). Za potrebe ovog istraživanja korišćeno je pet elastomernih otisnih materijala: dva kondenzaciona silikona (Oranwash L–Zhermack i Xantopren L blue–Her...aeus Kulzer), dva adiciona silikona (Elite HD+ light body–Zhermack i Variotime Light Flow–Heraeus Kulzer) i jedan polietar (ImpregumTM Soft 3M ESPE). Uzorci ispitivanih otisnih materijala dobijeni su iz specijalne modle od nerđajućeg čelika koja je izrađena prema preporukama važećih standarda. Dimenzionalna stabilnost otisnih materijala ispitana je u zavisnosti od vremena (5min, 30min, 60min i 24h od momenta odvajanja otiska od modle), pri temperaturama od 23ºC, 35ºC i 40ºC, kao i pod uticajem različitih dezinficijenasa (5,25% NaOCl, glutaraldehid, benzalkonijum hlorid –Sterigum i sprej na bazi etanola i izopropanola – Zeta 7)...

Keywords:
dimensional stability / dental impression materials / silicones / polyether / disinfection / standards / photometric methods / dimenzionalna stabilnost / stomatološki materijali za otiske / silikoni / polietar / dezinfekcija / standardi / fotometrijske metode
Source:
2016
Publisher:
  • Univerzitet u Beogradu, Stomatološki fakultet
[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_nardus_6744
URI
http://eteze.bg.ac.rs/application/showtheses?thesesId=3935
https://fedorabg.bg.ac.rs/fedora/get/o:13235/bdef:Content/download
https://fedorabg.bg.ac.rs/fedora/get/o:13308/bdef:Izvestaj/download
http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48250127
http://nardus.mpn.gov.rs/123456789/6744
https://smile.stomf.bg.ac.rs/handle/123456789/992
Collections
  • Doktorati
Institution/Community
Stomatološki fakultet
TY  - THES
AU  - Sinobad, Tamara
PY  - 2016
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=3935
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:13235/bdef:Content/download
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:13308/bdef:Izvestaj/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48250127
UR  - http://nardus.mpn.gov.rs/123456789/6744
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/992
AB  - Dental impression materials are used to reproduce the form and relations of teeth and  surrounding oral tissues, and the impressions are used for fabricating diagnostic and  master casts. Dimensional stability of elastomeric impression materials under various  conditions, is pivotal factor for the accuracy and durability of the final prosthetic  restorations. It is defined as the ability of a material to retain its size and form over time.  The aim of this study was to evaluate different possibilities of the original photometric  methods in assessment of dimensional stability of elastomeric impression materials and  to determine their efficiency and precision in comparison with the reference method  recommended by the valid standards for dental elastomeric impression materials (ISO  4823:2000, ANSI/ADA Specification No.19).  Five elastomeric impression materials were used in this study: two condensation  silicones (Oranwash L - Zhermack and Xantopren L blue - Heraeus Kulzer), two  addition silicones (Elite HD + light body - Zhermack and Variotime Light Flow -  Heraeus Kulzer) and one polyether (ImpregumTM Soft 3M ESPE). A specific stainless  steel test block, made according to the recommendations of ISO standard, was used for  the fabrication of the samples of tested impression materials. Dimensional stability of  the impression materials was examined as a function of time (5min, 30min, 1h and 24h  after removal from the test block) at the temperatures of 23ºC, 35ºC and 40ºC. The  effect of each applied disinfectant (5.25% NaOCl, glutaraldehyde, benzalkonium  chloride – Sterigum and aerosol with ethanol and isopropanol - Zeta 7) was tested as well..
AB  - U stomatologiji se otisni materijali upotrebljavaju za reprodukciju oblika i odnosa zuba i  okolnih oralnih tkiva, a dobijeni otisci se koriste za izradu dijagnostičkih i master  modela. Dimenzionalna stabilnost elastomernih otisnih materijala u različitim uslovima,  važan je faktor koji direktno utiče na preciznost i trajnost indirektno izrađenih  definitivnih zubnih nadoknada. Definiše se kao sposobnost materijala da zadrži svoju  veličinu i oblik tokom vremena.  Cilj ovog istraživanja je ispitivanje različitih mogućnosti originalnih fotometrijskih  metoda u proceni dimenzionalne stabilnosti elastomernih otisnih materijala i utvrđivanje  njihove efikasnosti i preciznosti u poređenju sa referentnom metodom koju preporučuju  važeći standardi za elastomerne otisne materijale u stomatologiji (ISO 4823:2000,  ANSI/ADA Specifikacija br.19).  Za potrebe ovog istraživanja korišćeno je pet elastomernih otisnih materijala: dva  kondenzaciona silikona (Oranwash L–Zhermack i Xantopren L blue–Heraeus Kulzer),  dva adiciona silikona (Elite HD+ light body–Zhermack i Variotime Light Flow–Heraeus  Kulzer) i jedan polietar (ImpregumTM Soft 3M ESPE). Uzorci ispitivanih otisnih  materijala dobijeni su iz specijalne modle od nerđajućeg čelika koja je izrađena prema  preporukama važećih standarda. Dimenzionalna stabilnost otisnih materijala ispitana je  u zavisnosti od vremena (5min, 30min, 60min i 24h od momenta odvajanja otiska od  modle), pri temperaturama od 23ºC, 35ºC i 40ºC, kao i pod uticajem različitih  dezinficijenasa (5,25% NaOCl, glutaraldehid, benzalkonijum hlorid –Sterigum i sprej na  bazi etanola i izopropanola – Zeta 7)...
PB  - Univerzitet u Beogradu, Stomatološki fakultet
T1  - Evaluation of photometric methods in assessment of dimensional stability of elastomeric impression materials
T1  - Evaluacija fotometrijskih metoda u ispitivanju dimenzionalne stabilnosti elastomernih otisnih materijala
UR  - https://hdl.handle.net/21.15107/rcub_nardus_6744
ER  - 
@phdthesis{
author = "Sinobad, Tamara",
year = "2016",
abstract = "Dental impression materials are used to reproduce the form and relations of teeth and  surrounding oral tissues, and the impressions are used for fabricating diagnostic and  master casts. Dimensional stability of elastomeric impression materials under various  conditions, is pivotal factor for the accuracy and durability of the final prosthetic  restorations. It is defined as the ability of a material to retain its size and form over time.  The aim of this study was to evaluate different possibilities of the original photometric  methods in assessment of dimensional stability of elastomeric impression materials and  to determine their efficiency and precision in comparison with the reference method  recommended by the valid standards for dental elastomeric impression materials (ISO  4823:2000, ANSI/ADA Specification No.19).  Five elastomeric impression materials were used in this study: two condensation  silicones (Oranwash L - Zhermack and Xantopren L blue - Heraeus Kulzer), two  addition silicones (Elite HD + light body - Zhermack and Variotime Light Flow -  Heraeus Kulzer) and one polyether (ImpregumTM Soft 3M ESPE). A specific stainless  steel test block, made according to the recommendations of ISO standard, was used for  the fabrication of the samples of tested impression materials. Dimensional stability of  the impression materials was examined as a function of time (5min, 30min, 1h and 24h  after removal from the test block) at the temperatures of 23ºC, 35ºC and 40ºC. The  effect of each applied disinfectant (5.25% NaOCl, glutaraldehyde, benzalkonium  chloride – Sterigum and aerosol with ethanol and isopropanol - Zeta 7) was tested as well.., U stomatologiji se otisni materijali upotrebljavaju za reprodukciju oblika i odnosa zuba i  okolnih oralnih tkiva, a dobijeni otisci se koriste za izradu dijagnostičkih i master  modela. Dimenzionalna stabilnost elastomernih otisnih materijala u različitim uslovima,  važan je faktor koji direktno utiče na preciznost i trajnost indirektno izrađenih  definitivnih zubnih nadoknada. Definiše se kao sposobnost materijala da zadrži svoju  veličinu i oblik tokom vremena.  Cilj ovog istraživanja je ispitivanje različitih mogućnosti originalnih fotometrijskih  metoda u proceni dimenzionalne stabilnosti elastomernih otisnih materijala i utvrđivanje  njihove efikasnosti i preciznosti u poređenju sa referentnom metodom koju preporučuju  važeći standardi za elastomerne otisne materijale u stomatologiji (ISO 4823:2000,  ANSI/ADA Specifikacija br.19).  Za potrebe ovog istraživanja korišćeno je pet elastomernih otisnih materijala: dva  kondenzaciona silikona (Oranwash L–Zhermack i Xantopren L blue–Heraeus Kulzer),  dva adiciona silikona (Elite HD+ light body–Zhermack i Variotime Light Flow–Heraeus  Kulzer) i jedan polietar (ImpregumTM Soft 3M ESPE). Uzorci ispitivanih otisnih  materijala dobijeni su iz specijalne modle od nerđajućeg čelika koja je izrađena prema  preporukama važećih standarda. Dimenzionalna stabilnost otisnih materijala ispitana je  u zavisnosti od vremena (5min, 30min, 60min i 24h od momenta odvajanja otiska od  modle), pri temperaturama od 23ºC, 35ºC i 40ºC, kao i pod uticajem različitih  dezinficijenasa (5,25% NaOCl, glutaraldehid, benzalkonijum hlorid –Sterigum i sprej na  bazi etanola i izopropanola – Zeta 7)...",
publisher = "Univerzitet u Beogradu, Stomatološki fakultet",
title = "Evaluation of photometric methods in assessment of dimensional stability of elastomeric impression materials, Evaluacija fotometrijskih metoda u ispitivanju dimenzionalne stabilnosti elastomernih otisnih materijala",
url = "https://hdl.handle.net/21.15107/rcub_nardus_6744"
}
Sinobad, T.. (2016). Evaluation of photometric methods in assessment of dimensional stability of elastomeric impression materials. 
Univerzitet u Beogradu, Stomatološki fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_6744
Sinobad T. Evaluation of photometric methods in assessment of dimensional stability of elastomeric impression materials. 2016;.
https://hdl.handle.net/21.15107/rcub_nardus_6744 .
Sinobad, Tamara, "Evaluation of photometric methods in assessment of dimensional stability of elastomeric impression materials" (2016),
https://hdl.handle.net/21.15107/rcub_nardus_6744 .

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