Fracture Resistance of Ceramic Laminate Veneers Bonded to Teeth with Class V Composite Fillings after Cyclic Loading
Purpose. Porcelain laminate veneers (PLVs) are sometimes required to be used for teeth with composite fillings. This study examined the fracture strength of PLVs bonded to the teeth restored with different sizes of class V composite fillings. Materials and Methods. Thirty-six maxillary central incis...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2018/1456745 |
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| author | Leyla Sadighpour Farideh Geramipanah Vanya Rasaei Mohammad J. Kharazi Fard |
| author_facet | Leyla Sadighpour Farideh Geramipanah Vanya Rasaei Mohammad J. Kharazi Fard |
| author_sort | Leyla Sadighpour |
| collection | DOAJ |
| description | Purpose. Porcelain laminate veneers (PLVs) are sometimes required to be used for teeth with composite fillings. This study examined the fracture strength of PLVs bonded to the teeth restored with different sizes of class V composite fillings. Materials and Methods. Thirty-six maxillary central incisors were divided into three groups (n=12): intact teeth (control) and teeth with class V composite fillings of one-third or two-thirds of the crown height (small or large group, resp.). PLVs were made by using IPS e.max and bonded with a resin cement (RelyX Unicem). Fracture resistance (N) was measured after cyclic loading (1 × 106 cycles, 1.2 Hz). For statistical analyses, one-way ANOVA and Tukey test were used (α=0.05). Results. There was a significant difference between the mean failure loads of the test groups (P=0.004), with the Tukey-HSD test showing lower failure loads in the large-composite group compared to the control (P=0.02) or small group (P=0.05). The control and small-composite groups achieved comparable results (P>0.05). Conclusions. Failure loads of PLVs bonded to intact teeth and to teeth with small class V composite fillings were not significantly different. However, extensive composite fillings could compromise the bonding of PLVs. |
| format | Article |
| id | doaj-art-2f3aa62c1c2a4dcc80ae859b07557b28 |
| institution | Kabale University |
| issn | 1687-8728 1687-8736 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
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| series | International Journal of Dentistry |
| spelling | doaj-art-2f3aa62c1c2a4dcc80ae859b07557b282025-02-03T01:09:30ZengWileyInternational Journal of Dentistry1687-87281687-87362018-01-01201810.1155/2018/14567451456745Fracture Resistance of Ceramic Laminate Veneers Bonded to Teeth with Class V Composite Fillings after Cyclic LoadingLeyla Sadighpour0Farideh Geramipanah1Vanya Rasaei2Mohammad J. Kharazi Fard3Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, IranDental Implant Research Center, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, IranDepartment of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, IranDental Research Center, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, IranPurpose. Porcelain laminate veneers (PLVs) are sometimes required to be used for teeth with composite fillings. This study examined the fracture strength of PLVs bonded to the teeth restored with different sizes of class V composite fillings. Materials and Methods. Thirty-six maxillary central incisors were divided into three groups (n=12): intact teeth (control) and teeth with class V composite fillings of one-third or two-thirds of the crown height (small or large group, resp.). PLVs were made by using IPS e.max and bonded with a resin cement (RelyX Unicem). Fracture resistance (N) was measured after cyclic loading (1 × 106 cycles, 1.2 Hz). For statistical analyses, one-way ANOVA and Tukey test were used (α=0.05). Results. There was a significant difference between the mean failure loads of the test groups (P=0.004), with the Tukey-HSD test showing lower failure loads in the large-composite group compared to the control (P=0.02) or small group (P=0.05). The control and small-composite groups achieved comparable results (P>0.05). Conclusions. Failure loads of PLVs bonded to intact teeth and to teeth with small class V composite fillings were not significantly different. However, extensive composite fillings could compromise the bonding of PLVs.http://dx.doi.org/10.1155/2018/1456745 |
| spellingShingle | Leyla Sadighpour Farideh Geramipanah Vanya Rasaei Mohammad J. Kharazi Fard Fracture Resistance of Ceramic Laminate Veneers Bonded to Teeth with Class V Composite Fillings after Cyclic Loading International Journal of Dentistry |
| title | Fracture Resistance of Ceramic Laminate Veneers Bonded to Teeth with Class V Composite Fillings after Cyclic Loading |
| title_full | Fracture Resistance of Ceramic Laminate Veneers Bonded to Teeth with Class V Composite Fillings after Cyclic Loading |
| title_fullStr | Fracture Resistance of Ceramic Laminate Veneers Bonded to Teeth with Class V Composite Fillings after Cyclic Loading |
| title_full_unstemmed | Fracture Resistance of Ceramic Laminate Veneers Bonded to Teeth with Class V Composite Fillings after Cyclic Loading |
| title_short | Fracture Resistance of Ceramic Laminate Veneers Bonded to Teeth with Class V Composite Fillings after Cyclic Loading |
| title_sort | fracture resistance of ceramic laminate veneers bonded to teeth with class v composite fillings after cyclic loading |
| url | http://dx.doi.org/10.1155/2018/1456745 |
| work_keys_str_mv | AT leylasadighpour fractureresistanceofceramiclaminateveneersbondedtoteethwithclassvcompositefillingsaftercyclicloading AT faridehgeramipanah fractureresistanceofceramiclaminateveneersbondedtoteethwithclassvcompositefillingsaftercyclicloading AT vanyarasaei fractureresistanceofceramiclaminateveneersbondedtoteethwithclassvcompositefillingsaftercyclicloading AT mohammadjkharazifard fractureresistanceofceramiclaminateveneersbondedtoteethwithclassvcompositefillingsaftercyclicloading |