Fracture resistance of class IV fiber-reinforced composite resin restorations: An in vitro study
Objectives: The aim of this study was to evaluate fracture resistance of incisal edge fractures (Class IV) restored with a Glass Fiber-reinforced Composite (FRC). Materials and Methods: Twenty-four extracted sound maxillary central incisors were randomly divided into two groups. Group I (control) co...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2017-01-01
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| Series: | Indian Journal of Dental Sciences |
| Subjects: | |
| Online Access: | http://www.ijds.in/article.asp?issn=0976-4003;year=2017;volume=9;issue=4;spage=241;epage=244;aulast=Praveen |
| _version_ | 1811202340287414272 |
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| author | P S Praveen Kumar K T Srilatha B Nandlal |
| author_facet | P S Praveen Kumar K T Srilatha B Nandlal |
| author_sort | P S Praveen Kumar |
| collection | DOAJ |
| description | Objectives: The aim of this study was to evaluate fracture resistance of incisal edge fractures (Class IV) restored with a Glass Fiber-reinforced Composite (FRC). Materials and Methods: Twenty-four extracted sound maxillary central incisors were randomly divided into two groups. Group I (control) contained untreated teeth. Samples in experimental groups II were prepared by cutting the incisal (one-third) part of the crown horizontally and was subjected to enamel preparations, then restored with a Glass FRC. Fracture resistance was evaluated as Newton's for samples tested in a Hounsfield universal testing machine. Failure modes were examined microscopically. Results: Mean peak failure load (Newton's) observed in Glass Fiber-reinforced Nanocomposite was 863.50 ± 76.12. The experimental group showed similar types of failure modes with the majority occurring as cohesive and mixed type. 58% of the teeth in Glass FRC group fractured below the cementoenamel junction. Conclusion: Using Fiber reinforced composite substructure under conventional composites in Class IV restorations, the fracture resistance of the restored incisal edge could be increased. |
| first_indexed | 2024-04-12T02:37:05Z |
| format | Article |
| id | doaj.art-f9f782023f234656b1efa784e4f53b83 |
| institution | Directory Open Access Journal |
| issn | 0976-4003 |
| language | English |
| last_indexed | 2024-04-12T02:37:05Z |
| publishDate | 2017-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Dental Sciences |
| spelling | doaj.art-f9f782023f234656b1efa784e4f53b832022-12-22T03:51:30ZengWolters Kluwer Medknow PublicationsIndian Journal of Dental Sciences0976-40032017-01-019424124410.4103/IJDS.IJDS_96_17Fracture resistance of class IV fiber-reinforced composite resin restorations: An in vitro studyP S Praveen KumarK T SrilathaB NandlalObjectives: The aim of this study was to evaluate fracture resistance of incisal edge fractures (Class IV) restored with a Glass Fiber-reinforced Composite (FRC). Materials and Methods: Twenty-four extracted sound maxillary central incisors were randomly divided into two groups. Group I (control) contained untreated teeth. Samples in experimental groups II were prepared by cutting the incisal (one-third) part of the crown horizontally and was subjected to enamel preparations, then restored with a Glass FRC. Fracture resistance was evaluated as Newton's for samples tested in a Hounsfield universal testing machine. Failure modes were examined microscopically. Results: Mean peak failure load (Newton's) observed in Glass Fiber-reinforced Nanocomposite was 863.50 ± 76.12. The experimental group showed similar types of failure modes with the majority occurring as cohesive and mixed type. 58% of the teeth in Glass FRC group fractured below the cementoenamel junction. Conclusion: Using Fiber reinforced composite substructure under conventional composites in Class IV restorations, the fracture resistance of the restored incisal edge could be increased.http://www.ijds.in/article.asp?issn=0976-4003;year=2017;volume=9;issue=4;spage=241;epage=244;aulast=PraveenClass IVfracture resistanceglass fiber-reinforced compositeincisal edge fracture |
| spellingShingle | P S Praveen Kumar K T Srilatha B Nandlal Fracture resistance of class IV fiber-reinforced composite resin restorations: An in vitro study Indian Journal of Dental Sciences Class IV fracture resistance glass fiber-reinforced composite incisal edge fracture |
| title | Fracture resistance of class IV fiber-reinforced composite resin restorations: An in vitro study |
| title_full | Fracture resistance of class IV fiber-reinforced composite resin restorations: An in vitro study |
| title_fullStr | Fracture resistance of class IV fiber-reinforced composite resin restorations: An in vitro study |
| title_full_unstemmed | Fracture resistance of class IV fiber-reinforced composite resin restorations: An in vitro study |
| title_short | Fracture resistance of class IV fiber-reinforced composite resin restorations: An in vitro study |
| title_sort | fracture resistance of class iv fiber reinforced composite resin restorations an in vitro study |
| topic | Class IV fracture resistance glass fiber-reinforced composite incisal edge fracture |
| url | http://www.ijds.in/article.asp?issn=0976-4003;year=2017;volume=9;issue=4;spage=241;epage=244;aulast=Praveen |
| work_keys_str_mv | AT pspraveenkumar fractureresistanceofclassivfiberreinforcedcompositeresinrestorationsaninvitrostudy AT ktsrilatha fractureresistanceofclassivfiberreinforcedcompositeresinrestorationsaninvitrostudy AT bnandlal fractureresistanceofclassivfiberreinforcedcompositeresinrestorationsaninvitrostudy |