Diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oil
The need to develop new dental luting agents in order to improve the success of treatments has greatly motivated research. OBJECTIVE: The aim of this study was to evaluate the diametral tensile strength (DTS) and film thickness (FT) of an experimental dental luting agent derived from castor oil (COP...
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| Format: | Article |
| Language: | English |
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University of São Paulo
2012-02-01
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| Series: | Journal of Applied Oral Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572012000100004 |
| _version_ | 1819066199876567040 |
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| author | Juliana Cabrini Carmello Laiza Maria Grassi Fais Lígia Nunes de Moraes Ribeiro Salvador Claro Neto Dalton Geraldo Guaglianoni Lígia Antunes Pereira Pinelli |
| author_facet | Juliana Cabrini Carmello Laiza Maria Grassi Fais Lígia Nunes de Moraes Ribeiro Salvador Claro Neto Dalton Geraldo Guaglianoni Lígia Antunes Pereira Pinelli |
| author_sort | Juliana Cabrini Carmello |
| collection | DOAJ |
| description | The need to develop new dental luting agents in order to improve the success of treatments has greatly motivated research. OBJECTIVE: The aim of this study was to evaluate the diametral tensile strength (DTS) and film thickness (FT) of an experimental dental luting agent derived from castor oil (COP) with or without addition of different quantities of filler (calcium carbonate - CaCO3). MATERIAL AND METHODS: Eighty specimens were manufactured (DTS N=40; FT N=40) and divided into 4 groups: Pure COP; COP 10%; COP 50% and zinc phosphate (control). The cements were mixed according to the manufacturers' recommendations and submitted to the tests. The DTS test was performed in the MTS 810 testing machine (10 KN, 0.5 mm/min). For FT test, the cements were sandwiched between two glass plates (2 cm²) and a load of 15 kg was applied vertically on the top of the specimen for 10 min. The data were analyzed by means of one-way ANOVA and Tukey's test (α=0.05). RESULTS: The values of DTS (MPa) were: Pure COP- 10.94±1.30; COP 10%- 30.06±0.64; COP 50%- 29.87±0.27; zinc phosphate- 4.88±0.96. The values of FT (µm) were: Pure COP- 31.09±3.16; COP 10%- 17.05±4.83; COP 50%- 13.03±4.83; Zinc Phosphate- 20.00±0.12. One-way ANOVA showed statistically significant differences among the groups (DTS - p=1.01E-40; FT - p=2.4E-10). CONCLUSION: The experimental dental luting agent with 50% of filler showed the best diametral tensile strength and film thickness. |
| first_indexed | 2024-12-21T15:58:34Z |
| format | Article |
| id | doaj.art-ad95a924c2cc416eaab75aa37aea7ae9 |
| institution | Directory Open Access Journal |
| issn | 1678-7757 1678-7765 |
| language | English |
| last_indexed | 2024-12-21T15:58:34Z |
| publishDate | 2012-02-01 |
| publisher | University of São Paulo |
| record_format | Article |
| series | Journal of Applied Oral Science |
| spelling | doaj.art-ad95a924c2cc416eaab75aa37aea7ae92022-12-21T18:58:02ZengUniversity of São PauloJournal of Applied Oral Science1678-77571678-77652012-02-01201162010.1590/S1678-77572012000100004Diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oilJuliana Cabrini CarmelloLaiza Maria Grassi FaisLígia Nunes de Moraes RibeiroSalvador Claro NetoDalton Geraldo GuaglianoniLígia Antunes Pereira PinelliThe need to develop new dental luting agents in order to improve the success of treatments has greatly motivated research. OBJECTIVE: The aim of this study was to evaluate the diametral tensile strength (DTS) and film thickness (FT) of an experimental dental luting agent derived from castor oil (COP) with or without addition of different quantities of filler (calcium carbonate - CaCO3). MATERIAL AND METHODS: Eighty specimens were manufactured (DTS N=40; FT N=40) and divided into 4 groups: Pure COP; COP 10%; COP 50% and zinc phosphate (control). The cements were mixed according to the manufacturers' recommendations and submitted to the tests. The DTS test was performed in the MTS 810 testing machine (10 KN, 0.5 mm/min). For FT test, the cements were sandwiched between two glass plates (2 cm²) and a load of 15 kg was applied vertically on the top of the specimen for 10 min. The data were analyzed by means of one-way ANOVA and Tukey's test (α=0.05). RESULTS: The values of DTS (MPa) were: Pure COP- 10.94±1.30; COP 10%- 30.06±0.64; COP 50%- 29.87±0.27; zinc phosphate- 4.88±0.96. The values of FT (µm) were: Pure COP- 31.09±3.16; COP 10%- 17.05±4.83; COP 50%- 13.03±4.83; Zinc Phosphate- 20.00±0.12. One-way ANOVA showed statistically significant differences among the groups (DTS - p=1.01E-40; FT - p=2.4E-10). CONCLUSION: The experimental dental luting agent with 50% of filler showed the best diametral tensile strength and film thickness.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572012000100004Dental prosthesisBiocompatible materialsRicinus communisCalcium carbonateZinc phosphate cementTensile strength |
| spellingShingle | Juliana Cabrini Carmello Laiza Maria Grassi Fais Lígia Nunes de Moraes Ribeiro Salvador Claro Neto Dalton Geraldo Guaglianoni Lígia Antunes Pereira Pinelli Diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oil Journal of Applied Oral Science Dental prosthesis Biocompatible materials Ricinus communis Calcium carbonate Zinc phosphate cement Tensile strength |
| title | Diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oil |
| title_full | Diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oil |
| title_fullStr | Diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oil |
| title_full_unstemmed | Diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oil |
| title_short | Diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oil |
| title_sort | diametral tensile strength and film thickness of an experimental dental luting agent derived from castor oil |
| topic | Dental prosthesis Biocompatible materials Ricinus communis Calcium carbonate Zinc phosphate cement Tensile strength |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572012000100004 |
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