Effects of a solution of a succinic aldehyde on elastomeric impressions

McCormick, R.J.; Watts, D C; Wilson, Nairn

doi:10.1016/0300-5712(89)90178-4

Cited by 4 publications

(5 citation statements)

References 3 publications

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“…This could demonstrate the effect on the dimensional change, especially if a hydrophilic silicone had been utilized. Future study could evaluate a situation like this 12 . Also in relation to the surface hardness of the odontological gypsum, it can be observed through Graphs 3 and 4, that there was no statistically significant difference (p<0.05) in the surface hardness of the gypsums which set in contact with the elastomeric materials Xantopren VL Plus and 3M Express, immersed or not in the glutaraldehyde 2% and formaldehyde 1% solutions for asepsis.…”

Section: Discussionmentioning

confidence: 99%

The influence of disinfectant agents on the dimensional stability of elastomeric impression materials and surface durability of odontological Gypsum

Pasini¹,

Boscarioli²,

Pinto³

2010

BDS

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O consultório odontológico é um meio de contaminação microbiana cruzada, exigindo desinfecção de moldes e modelos mediante soluções de desinfecção. Os materiais de moldagem podem absorver água e os sais dos agentes de desinfecção eventualmente impregnam a superfície dos moldes e são transferidos para a superfície do gesso, prejudicando as suas propriedades. Este trabalho avaliou a alteração dimensional de dois elastômeros imersos em duas diferentes soluções de desinfecção e a dureza Rockwell do modelo de gesso após o contato com o molde desinfectado. Para cada elastômero foram confeccionados quinze moldes a partir de uma matriz de aço inoxidável: cinco foram imersos por 10 minutos em solução de glutaraldeído 2%, cinco em formaldeído 20 g e os outros cinco formaram o grupo controle. Com microscópio medidor verificou-se a alteração dimensional. Usando modelos de gesso tipo IV aplicados à superfície dos moldes avaliouse a dureza Rockwell com o microdurômetro por 24 horas. Quanto à alteração dimensional, os resultados obtidos permitiram concluir: a) Todos os grupos sofreram contração; b) Não houve diferença estatisticamente significativa (p<0,05) entre o Xantopren VL plus e o 3M Express, com exceção do grupo imerso em glutaraldeído, em que o 3M Express sofreu maior contração. c) Para o Xantopren VL plus não houve diferença estatisticamente significante (p<0,05) entre todos os grupos; d) Para o 3M Express só houve diferença estatisticamente significante (p>0,05) entre os grupos controle e imersos em glutaraldeído. Não houve diferença estatisticamente significante (p<0,05) na dureza superficial dos gessos odontológicos.

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Section: Discussionmentioning

confidence: 99%

The influence of disinfectant agents on the dimensional stability of elastomeric impression materials and surface durability of odontological Gypsum

Pasini¹,

Boscarioli²,

Pinto³

2010

BDS

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“…For polyethers, the water absorption potential contributes to relatively big changes compared to dry controls (18, 23, 26, 30, 33, 37, 40), therefore spraying, which proved efficacious in eliminating micro‐organisms (29), as well as drying for 24 h after disinfection (32), have been advocated. Modern materials, however, seem to have overcome imbibition problems, and were found as stable as silicones (40, 48–50, 52, 57).…”

Section: Literature Reviewmentioning

confidence: 99%

“…Information on their behaviour following the long‐term disinfection is, however, still lacking. On the other hand, the traditional hydrophobic addition silicones were the most stable materials (28, 29, 32, 35, 37, 38, 42, 48, 49, 51, 52), even after long‐term immersion in the disinfecting solutions (23, 30, 33, 50). Fast setting polyvinyl siloxanes were found to be as advantageous as traditional materials (57).…”

Section: Literature Reviewmentioning

confidence: 99%

“…Therefore, most authors conclude that, excluding the possibility of water uptake, interactions between impression material and disinfectant do not produce significant differences (28,37,40,42,48,53) concerning the accuracy, either short-or long-term, of the record. However, investigations using both dry and wet (water-immersed) controls (18,24,30,31,34,37,48) indicate that chemical interactions may take place during disinfection. For example irreversible hydrocolloids tend to be superficially dissolved or deteriorated by sodium hypochlorite (28,38,41,54) and dehydrated by ethanol (32).…”

Section: Assessment Of Published Evidence On Dimensional Accuracy ⁄ Smentioning

confidence: 99%

“…An additional search was subsequently performed to trace relevant studies cited in the retrieved material, as well as in dental materials’ textbooks; 13 more titles were found and obtained in full‐text. Thus, 41 original research studies, reporting on dimensional changes of chemically disinfected impression materials, were finally collected (17–57). These articles, represented by the first author’s name, arranged by year of publication and briefly described by the tested materials and main attributes of experimental design, are presented in Table 1.…”

Section: Introductionmentioning

confidence: 99%

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Accuracy and stability of impression materials subjected to chemical disinfection – a literature review

Kotsiomiti

Tzialla

Hatjivasiliou

2007

J of Oral Rehabilitation

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Disinfection of impressions by immersion or spraying with disinfecting solutions is considered nowadays mandatory for effective infection control. The purpose of this review was to examine existing evidence on the effects that chemical disinfection may have on critical qualities of impressions, namely dimensional accuracy and stability over time. A PubMed search was conducted to include original laboratory research articles written in English, published between 1980 and 2005 in peer-reviewed journals and investigating the effect of chemical disinfection, by immersion or spraying, on the dimensional changes that the impression materials experience after setting. Studies were also sought manually, by tracing the references cited in the retrieved articles. The reports on dimensional changes of disinfected impression materials, although rather numerous, are difficult to compare and analyze because of variations of the experimental design. The investigations broadly agree that the disinfection process does not generally affect the dimensional integrity of the impressions, in spite of the statistically significant differences occasionally found. However, the immersion in the disinfecting solution encourages water absorption phenomena in the case of the so-called hydrophilic impression materials, especially after the long-term immersion. Chemical interactions between impressions and disinfectants may occur, but they do not appear to influence the dimensional behaviour of the former. The overall effect of the disinfection is influenced not only by the changes experienced by the impression per se, but also by the alterations of the acrylic tray containing the impression and of the gypsum product poured in it.

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The effects of sterilization on addition silicone impressions in custom and stock metal trays

Olin

Holtan

Breitbach

et al. 1994

The Journal of Prosthetic Dentistry

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Effects of a solution of a succinic aldehyde on elastomeric impressions

Cited by 4 publications

References 3 publications

The influence of disinfectant agents on the dimensional stability of elastomeric impression materials and surface durability of odontological Gypsum

The influence of disinfectant agents on the dimensional stability of elastomeric impression materials and surface durability of odontological Gypsum

Accuracy and stability of impression materials subjected to chemical disinfection – a literature review

The effects of sterilization on addition silicone impressions in custom and stock metal trays

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