Evaluation of the Fracture Strength of Different CAD/CAM Inlay Restorations After Accelerated Aging
Background: The purpose of this study was to compare the fracture resistance of inlay restorations manufactured by CAD/CAM using different materials after accelerated artificial aging.Methods: Class I inlay preparations were made for 40 mandibular molar teeth. The teeth were allocated into four grou...
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| Format: | Article |
| Language: | English |
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Selcuk University Press
2019-08-01
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| Series: | Selcuk Dental Journal |
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| Online Access: | https://dergipark.org.tr/tr/download/article-file/892005 |
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| author | İşıl Karaokutan Meryem Gülce Subaşı Filiz Aykent Tuba Yılmaz Savaş |
| author_facet | İşıl Karaokutan Meryem Gülce Subaşı Filiz Aykent Tuba Yılmaz Savaş |
| author_sort | İşıl Karaokutan |
| collection | DOAJ |
| description | Background: The purpose of this study was to compare the fracture
resistance of inlay restorations manufactured by CAD/CAM using different materials
after accelerated artificial aging.Methods: Class I inlay preparations were made for 40
mandibular molar teeth. The teeth were allocated into four groups (n=10)
according to the type of manufacturing material used: feldspathic-ceramic
(CEREC blocks); leucite-based glass-ceramic (IPS Empress CAD); resin
nano-ceramic (Lava Ultimate); and a control (intact teeth). After obtaining
digital impressions, restorations were designed and milled with CAD/CAM. Inlay
restorations were cemented to the inlay cavities using a dual-polymerizing
resin cement (Rely X Ultimate) and stored in distilled water at 37°C for a
week. All the samples were then exposed to accelerated ultraviolet aging for
300 hours. Finally, a compressive load was applied to the samples until
fracture. Statistical analysis was conducted using One-Way ANOVA and the Tukey
HSD test (a=0.05).Results: The mean fracture strength values of the groups were;
Control (1555.3±412.2 N)> Lava Ultimate (1525±394N)>IPS Empress CAD (1364.3±545.6N) > CEREC(1231.9±412.2N), respectively. However, there was no
statistically significant difference in mean fracture strength among different
inlay restoration groups (P>0.05).
Fifty percent of the both CEREC and IPS Empress CAD groups and 60% of the Lava Ultimate group showed
reparable fractures. Conclusion: The type of
material used did not influence the fracture strength of inlay-restored molar
teeth and inlay restorations did not weaken the strength of the restored
teeth. Therefore, all of the tested
materials are suitable for use in the posterior region.
Keywords: Inlay, fracture strength, resin nano-ceramic,
ceramic, CAD/CAM |
| format | Article |
| id | doaj-art-fea9566e1e2e49d59071dbcdb7cc07ad |
| institution | Kabale University |
| issn | 2148-7529 |
| language | English |
| publishDate | 2019-08-01 |
| publisher | Selcuk University Press |
| record_format | Article |
| series | Selcuk Dental Journal |
| spelling | doaj-art-fea9566e1e2e49d59071dbcdb7cc07ad2025-01-02T23:57:03ZengSelcuk University PressSelcuk Dental Journal2148-75292019-08-016215516210.15311/selcukdentj.456939154Evaluation of the Fracture Strength of Different CAD/CAM Inlay Restorations After Accelerated Agingİşıl KaraokutanMeryem Gülce SubaşıFiliz AykentTuba Yılmaz SavaşBackground: The purpose of this study was to compare the fracture resistance of inlay restorations manufactured by CAD/CAM using different materials after accelerated artificial aging.Methods: Class I inlay preparations were made for 40 mandibular molar teeth. The teeth were allocated into four groups (n=10) according to the type of manufacturing material used: feldspathic-ceramic (CEREC blocks); leucite-based glass-ceramic (IPS Empress CAD); resin nano-ceramic (Lava Ultimate); and a control (intact teeth). After obtaining digital impressions, restorations were designed and milled with CAD/CAM. Inlay restorations were cemented to the inlay cavities using a dual-polymerizing resin cement (Rely X Ultimate) and stored in distilled water at 37°C for a week. All the samples were then exposed to accelerated ultraviolet aging for 300 hours. Finally, a compressive load was applied to the samples until fracture. Statistical analysis was conducted using One-Way ANOVA and the Tukey HSD test (a=0.05).Results: The mean fracture strength values of the groups were; Control (1555.3±412.2 N)> Lava Ultimate (1525±394N)>IPS Empress CAD (1364.3±545.6N) > CEREC(1231.9±412.2N), respectively. However, there was no statistically significant difference in mean fracture strength among different inlay restoration groups (P>0.05). Fifty percent of the both CEREC and IPS Empress CAD groups and 60% of the Lava Ultimate group showed reparable fractures. Conclusion: The type of material used did not influence the fracture strength of inlay-restored molar teeth and inlay restorations did not weaken the strength of the restored teeth. Therefore, all of the tested materials are suitable for use in the posterior region. Keywords: Inlay, fracture strength, resin nano-ceramic, ceramic, CAD/CAMhttps://dergipark.org.tr/tr/download/article-file/892005inlayfracture strengthresin nano-ceramicceramici̇nlaykırılma dayanımırezin nano-seramikseramik |
| spellingShingle | İşıl Karaokutan Meryem Gülce Subaşı Filiz Aykent Tuba Yılmaz Savaş Evaluation of the Fracture Strength of Different CAD/CAM Inlay Restorations After Accelerated Aging Selcuk Dental Journal inlay fracture strength resin nano-ceramic ceramic i̇nlay kırılma dayanımı rezin nano-seramik seramik |
| title | Evaluation of the Fracture Strength of Different CAD/CAM Inlay Restorations After Accelerated Aging |
| title_full | Evaluation of the Fracture Strength of Different CAD/CAM Inlay Restorations After Accelerated Aging |
| title_fullStr | Evaluation of the Fracture Strength of Different CAD/CAM Inlay Restorations After Accelerated Aging |
| title_full_unstemmed | Evaluation of the Fracture Strength of Different CAD/CAM Inlay Restorations After Accelerated Aging |
| title_short | Evaluation of the Fracture Strength of Different CAD/CAM Inlay Restorations After Accelerated Aging |
| title_sort | evaluation of the fracture strength of different cad cam inlay restorations after accelerated aging |
| topic | inlay fracture strength resin nano-ceramic ceramic i̇nlay kırılma dayanımı rezin nano-seramik seramik |
| url | https://dergipark.org.tr/tr/download/article-file/892005 |
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