Load-bearing capacity of human incisor restored with various fiber-reinforced composite posts
Source abstract
Abstract
Objectives The aim of this study was to evaluate the load-bearing capacity and microstrain of incisors restored with posts of various kinds. Both prefabricated titanium posts and different fiber-reinforced composite posts were tested. Methods The crowns of human incisors were cut and post preparation was carried out. The roots were divided into groups: (1) prefabricated serrated titanium posts, (2) prefabricated carbon fiber-reinforced composite posts, (3) individually formed glass fiber-reinforced composite posts with the canal full of fibers, and (4) individually formed "split" glass fiber-reinforced composite posts. The posts were cemented and composite crowns were made. Intact human incisors were used as reference. All roots were embedded in acrylic resin cylinders and stored at room temperature in water. Static load was applied under a loading angle of 45° using a universal testing machine. On half of the specimens microstrain was measured with strain gages and an acoustic emission analysis was carried out. Failure mode assessment was also made. Results The group with titanium posts showed highest number of unfavorable failures compared to the groups with fiber-reinforced composite posts. Significance With fiber-reinforced composite posts the failures may more often be favorable compared to titanium posts, which clinically means repairable failures.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Dental materials and restorations · Dental Trauma and Treatments · Endodontics and Root Canal Treatments
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Factors determining post selection: a literature review10.1016/j.prosdent.2003.09.006 ↗
2. Identifying and reducing risks for potential fractures in endodontically treated teeth10.1016/j.joen.2009.12.002 ↗
3. Intermittent loading of teeth restored using prefabricated carbon fiber posts
4. Stiffness, elastic limit, and strength of newer types of endodontic posts10.1016/S0300-5712(98)00066-9 ↗
5. In vitro comparison of the fracture resistance and failure mode of fiber, ceramic, and conventional post systems at various stages of restoration10.1111/j.1532-849X.2001.00026.x ↗
6. Flexural properties of fiber reinforced root canal posts10.1016/S0109-5641(03)00065-4 ↗
7. In vitro fracture behaviour of maxillary premolars with metal crowns and several post-and-core systems10.1111/j.1600-0722.2006.00357.x ↗
8. Fracture resistance of endodontically treated anterior teeth restored with four post-and-core systems
9. An in vitro evaluation of a carbon fiber-based post and core system10.1016/S0022-3913(97)70080-5 ↗
10. Fracture strength and survival rate of endodontically treated maxillary incisors with approximal cavities after restoration with different post and core systems: an in-vitro study10.1016/S0300-5712(01)00038-0 ↗
11. Fracture strength of different core build-up designs
12. Marginal adaptation, retention and fracture resistance of adhesive composite restorations on devital teeth with and without posts
13. Ex vivo fracture resistance of direct resin composite complete crowns with and without posts on maxillary premolars10.1111/j.1365-2591.2005.00941.x ↗
14. 5-year follow-up of a prospective clinical study on various types of core restorations
15. A 5-year prospective clinical study on core restorations without covering crowns
16. Intermittent loading of teeth restored using quartz fiber, carbon-quartz fiber, and zirconium dioxide ceramic root canal posts
17. In vitro comparison of intact endodontically treated teeth with and without endo-post reinforcement10.1016/0022-3913(79)90328-7 ↗
18. Post and cores
19. Flexural properties of acrylic resin polymers reinforced with unidirectional and woven glass fibers10.1016/S0022-3913(99)70276-3 ↗
20. Interpenetrating polymer networks: an overview
21. Penetration of bonding resins into fibre-reinforced composite posts: a confocal microscopic study10.1111/j.1365-2591.2004.00900.x ↗
22. Bonding of composite resin luting cement to fiber-reinforced composite root canal posts
23. Bonding of fibre-reinforced composite post to root canal dentin10.1016/j.jdent.2004.11.014 ↗
24. Effect of silanization on bond strengths of fiber posts to various resin cements
25. A structured analysis of in vitro failure loads and failure modes of fiber, metal and ceramic post-and-core systems
26. Cores and sandwiches design data
27. A literature review on the prosthetic treatment of structurally compromised teeth
28. Influence of test parameters on in vitro fracture resistance of post-endodontic restorations: a structured review10.1111/j.1365-2842.2009.01940.x ↗
29. Effects of sodium hypochlorite and RC-prep on bond strengths of resin cement to endodontic surfaces10.1097/00004770-200112000-00010 ↗
30. A strain gauge and photoelastic analysis of in vivo strain and in vitro stress distribution in human dental supporting structures10.1016/S0003-9969(00)00031-5 ↗
31. An experimental analysis of stresses in simulated flared root canals subjected to various post-core applications10.1111/j.1365-2842.2005.01440.x ↗
32. Finite Element analysis of a glass fibre reinforced composite endodontic post10.1016/S0142-9612(01)00407-0 ↗
33. Can Fiber Posts increase root stresses and reduce fracture?10.1177/0022034510363382 ↗
34. 3D FEA of cemented steel, glass and carbon posts in a maxillary incisor10.1016/j.dental.2004.09.010 ↗
35. Elastic modulus of posts and the risk of root fracture10.1111/j.1600-9657.2009.00772.x ↗
36. Influence of post dimension on stress distribution in dentin10.1016/S0022-3913(96)90090-6 ↗
37. Evaluation of tooth analogs and type of restoration on the fracture resistance of post and core restored incisors10.1002/jbm.b.31399 ↗