Disinfection procedures: their effect on the dimensional accuracy and surface quality of irreversible hydrocolloid impression materials and gypsum casts

Taylor, Rebecca L.; Wright, Paul S.; Maryan, C.

doi:10.1016/s0109-5641(01)00027-6

Cited by 100 publications

(127 citation statements)

References 16 publications

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“…It has been suggested that for a disinfecting solution to be effective it must produce consistently high kill levels on every impression and not just a high average that includes some low values [42]. The results of this study confirmed the aseptic environment under which the experiment was conducted and proved that both test Taylor et al [10] reported that brands of irreversible hydrocolloid impression material which showed the least penetration of disinfecting solution demonstrated superior surface reproduction. However, impression materials that do not absorb disinfecting solutions may not be adequately disinfected if micro-organisms become entrapped within the material when the impression is taken.…”

supporting

confidence: 72%

“…A c c e p t e d M a n u s c r i p t 4 disinfection of dental impressions routinely used in dentistry include: sodium hypochlorite, glutaraldehyde, iodophor, and phenol [8][9][10]. However, not all impression materials are compatible with all types of disinfectant and the potential for disinfectants to modify the properties of the impression material (surface roughness, and dimensional stability) are a distinct possibility [11].…”

Section: Page 4 Of 28mentioning

confidence: 99%

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Disinfection procedures: Their efficacy and effect on dimensional accuracy and surface quality of an irreversible hydrocolloid impression material

Rentzia¹,

Coleman²,

O’Donnell³

et al. 2011

Journal of Dentistry

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Please cite this article as: 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, Journal of Dentistry (2010Dentistry ( ), doi:10.1016Dentistry ( /j.jdent.2010 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. controls. Dimensional accuracy measurements were completed between fixed points using a travelling microscope under low angle illumination at a magnification of X3.Surface quality changes of "smooth" and "rough" areas on the cast were evaluated by means of optical profilometry. The efficacy of the disinfection procedures againstPseudomonas aeruginosa was evaluated by determining the number of colony forming units (cfu) recovered after disinfection of alginate discs inoculated with 1x10 6 cfu for defined intervals. Results:The dimensional accuracy of the gypsum casts was not significantly affected by the disinfection protocols. Neither disinfectant solution nor immersion time had an effect on the surface roughness of the "smooth" area on the cast, however, a significant increase in surface roughness was observed with increasing immersion time for the "rough" surface. Complete elimination of viable Pseudomonas aeruginosa cells from alginate discs was obtained after 30 and 120 s immersion in Cidex OPA ® and NaOCl, respectively. Conclusions:Immersion of irreversible hydrocolloid impressions in Cidex OPA ® for 30 s was proved to be the most effective disinfection procedure.

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supporting

confidence: 72%

Section: Page 4 Of 28mentioning

confidence: 99%

Disinfection procedures: Their efficacy and effect on dimensional accuracy and surface quality of an irreversible hydrocolloid impression material

Rentzia¹,

Coleman²,

O’Donnell³

et al. 2011

Journal of Dentistry

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“…Although antibacterial effects of irreversible impression materials have been investigated recently (5,16,(19)(20)(21)(22), no information is available in the literature related to antibacterial tests on polyether impression materials. In the present study, three different types of polyether impression materials were tested to determine their ability to inhibit the growth of E. faecalis, S. aureus, P. aeruginosa and C. albicans.…”

Section: Discussionmentioning

confidence: 99%

Antibacterial and antifungal properties of polyether impression materials

et al. 2007

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“…Spraying with disinfectant is not advocated due to the inhalational risk. 5 Taylor et al 38 found both sodium hypochlorite and a disinfecting solution, Perform ® , were effective in the elimination of Staphylococcus aureus. Furthermore, it has been suggested that rinsing should also take place after disinfection to remove any residual disinfectant, which may affect the surface of the stone cast.…”

Section: Decontamination Of Appliances and Impressionsmentioning

confidence: 99%