Dimensional stability of two impression materials after a 6-month storage period
Objective: Oral rehabilitation success is enhanced by an accurate and reproducible final impression. The purpose of this study is to evaluate the dimensional changes of a polyether and addition silicone subjected to disinfection and/or sterilization after a long storage period. Material and methods:...
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| Language: | English |
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Medical Journals Sweden
2017-01-01
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| Series: | Acta Biomaterialia Odontologica Scandinavica |
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| Online Access: | http://dx.doi.org/10.1080/23337931.2017.1401933 |
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| author | Francisco Martins Patrícia Branco José Reis Ignacio Barbero Navarro Paulo Maurício |
| author_facet | Francisco Martins Patrícia Branco José Reis Ignacio Barbero Navarro Paulo Maurício |
| author_sort | Francisco Martins |
| collection | DOAJ |
| description | Objective: Oral rehabilitation success is enhanced by an accurate and reproducible final impression. The purpose of this study is to evaluate the dimensional changes of a polyether and addition silicone subjected to disinfection and/or sterilization after a long storage period. Material and methods: Ninety samples were obtained from polyether ImpregumTM PentaTM (3M ESPETM, Seefeld, Germany) and 90 of addition silicone ImprintTM 4 PentaTM Putty (3M ESPETM, Seefeld, Germany) according to ISO 4823:2000. The samples of each material were split to form three groups with 30 samples each: a control group, a hypochlorite group (disinfection) and an autoclave group (sterilization). Samples were stored in the Portuguese Institute for Quality for six months at 23 °C. Samples were measured by laser interferometry, according to the Michelson technique before calculating dimensional stability according ISO 4823:2000. A statistical analysis via a three-way mixed ANOVA was performed. Results: Significant shrinkage of ImpregumTM PentaTM was 0.77 ± 0.17% in the control group, 0.42 ± 0.19% in the hypochlorite group and 0.52 ± 0.28% in the autoclave group. For ImprintTM 4 PentaTM Putty, the control group had a shrinkage of 0.42 ± 0.12%, the hypochlorite group 0.36 ± 0.09% and the autoclave group 0.59 ± 0.13%. Conclusions: The long-term storage of samples subjected to disinfection with 5.25% hypochlorite or autoclave sterilization can be used in a clinical setting as the dimensional changes are below the maximum permitted by the ISO 4823:2000, since there are no clinically significant changes in the dimension of the samples during the storage period. |
| format | Article |
| id | doaj-art-b7f0cd7b78d34cdd97d0e10e89b226d6 |
| institution | Kabale University |
| issn | 2333-7931 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Medical Journals Sweden |
| record_format | Article |
| series | Acta Biomaterialia Odontologica Scandinavica |
| spelling | doaj-art-b7f0cd7b78d34cdd97d0e10e89b226d62024-12-02T00:15:28ZengMedical Journals SwedenActa Biomaterialia Odontologica Scandinavica2333-79312017-01-0131849110.1080/23337931.2017.14019331401933Dimensional stability of two impression materials after a 6-month storage periodFrancisco Martins0Patrícia Branco1José Reis2Ignacio Barbero Navarro3Paulo Maurício4Instituto Superior de Ciências da Saúde Egas MonizInstituto Superior de Ciências da Saúde Egas MonizInstituto Superior de Ciências da Saúde Egas MonizUniversidad de SevillaInstituto Superior de Ciências da Saúde Egas MonizObjective: Oral rehabilitation success is enhanced by an accurate and reproducible final impression. The purpose of this study is to evaluate the dimensional changes of a polyether and addition silicone subjected to disinfection and/or sterilization after a long storage period. Material and methods: Ninety samples were obtained from polyether ImpregumTM PentaTM (3M ESPETM, Seefeld, Germany) and 90 of addition silicone ImprintTM 4 PentaTM Putty (3M ESPETM, Seefeld, Germany) according to ISO 4823:2000. The samples of each material were split to form three groups with 30 samples each: a control group, a hypochlorite group (disinfection) and an autoclave group (sterilization). Samples were stored in the Portuguese Institute for Quality for six months at 23 °C. Samples were measured by laser interferometry, according to the Michelson technique before calculating dimensional stability according ISO 4823:2000. A statistical analysis via a three-way mixed ANOVA was performed. Results: Significant shrinkage of ImpregumTM PentaTM was 0.77 ± 0.17% in the control group, 0.42 ± 0.19% in the hypochlorite group and 0.52 ± 0.28% in the autoclave group. For ImprintTM 4 PentaTM Putty, the control group had a shrinkage of 0.42 ± 0.12%, the hypochlorite group 0.36 ± 0.09% and the autoclave group 0.59 ± 0.13%. Conclusions: The long-term storage of samples subjected to disinfection with 5.25% hypochlorite or autoclave sterilization can be used in a clinical setting as the dimensional changes are below the maximum permitted by the ISO 4823:2000, since there are no clinically significant changes in the dimension of the samples during the storage period.http://dx.doi.org/10.1080/23337931.2017.1401933Elastomerssterilizationlaser interferometry |
| spellingShingle | Francisco Martins Patrícia Branco José Reis Ignacio Barbero Navarro Paulo Maurício Dimensional stability of two impression materials after a 6-month storage period Acta Biomaterialia Odontologica Scandinavica Elastomers sterilization laser interferometry |
| title | Dimensional stability of two impression materials after a 6-month storage period |
| title_full | Dimensional stability of two impression materials after a 6-month storage period |
| title_fullStr | Dimensional stability of two impression materials after a 6-month storage period |
| title_full_unstemmed | Dimensional stability of two impression materials after a 6-month storage period |
| title_short | Dimensional stability of two impression materials after a 6-month storage period |
| title_sort | dimensional stability of two impression materials after a 6 month storage period |
| topic | Elastomers sterilization laser interferometry |
| url | http://dx.doi.org/10.1080/23337931.2017.1401933 |
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