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Long-life physical property preservation and postendodontic rehabilitation with the Composipost.
- Source :
-
Compendium of continuing education in dentistry. (Jamesburg, N.J. : 1995). Supplement [Compend Contin Educ Dent Suppl] 1996 (20), pp. S50-6. - Publication Year :
- 1996
-
Abstract
- Most coronal radicular reconstructions are made of cast inlay core metals or prefabricated posts covered in composite. The differences in the mechanical properties of these elements create a heterogeneous mass with inconsistent mechanical behavior. Studies using the Finite Element Method have shown the biomechanical disturbances caused by the inclusion of materials with a modulus of elasticity that is superior to that of dentine (i.e., nickel, chrome, zircon, etc). The use of materials with a modulus of elasticity close to that of dentine does not disturb the flow of stress inside the root. To our knowledge, only a composite material structured with programmable mechanical properties would be capable of producing both high mechanical performance and a modulus of elasticity adapted to dentine values. The C-POST, made of carbon epoxy, accommodates the demands of the dentine, as well as the in vitro stress linked to the prosthesis. The internal structure, consisting of long high-performance carbon fibers, unidirectionally and equally stretched, confers a totally original behavior that is adapted to clinical objectives. In addition, the C-POST has a fracture resistance superior to most metals.
- Subjects :
- Biomechanical Phenomena
Carbon Fiber
Chromium Alloys chemistry
Compressive Strength
Crowns
Dental Bonding
Dental Restoration Failure
Dentin physiology
Dentin-Bonding Agents chemistry
Elasticity
Epoxy Resins chemistry
Finite Element Analysis
Glass Ionomer Cements chemistry
Humans
Silicate Cement chemistry
Stress, Mechanical
Surface Properties
Tensile Strength
Titanium chemistry
Carbon chemistry
Dental Materials chemistry
Dental Prosthesis Design
Post and Core Technique
Root Canal Therapy
Subjects
Details
- Language :
- English
- Issue :
- 20
- Database :
- MEDLINE
- Journal :
- Compendium of continuing education in dentistry. (Jamesburg, N.J. : 1995). Supplement
- Publication Type :
- Academic Journal
- Accession number :
- 12089762