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A review of polymerization contraction: the influence of stress development versus stress relief.
- Source :
-
Operative dentistry [Oper Dent] 1996 Jan-Feb; Vol. 21 (1), pp. 17-24. - Publication Year :
- 1996
-
Abstract
- The insertion of bonded resin composites into cavity preparations leads to a competition between polymerization contraction forces and the strength of bonds to tooth structure. The degree of stress development can be controlled, to some extent, by the cavity design (C-factor), the use of bases, the size, shape, and position of increments of composite resins placed in the cavity, and whether the resin is light- or chemically cured. Stress relief can be accomplished by maintaining the C-factor as low as possible, using chemical-curing resins, low modulus liners, and, over time, by water sorption. A thorough understanding of these principles permits clinicians to exercise more control over these variables, thereby improving the quality of their bonded restorations.
Details
- Language :
- English
- ISSN :
- 0361-7734
- Volume :
- 21
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Operative dentistry
- Publication Type :
- Academic Journal
- Accession number :
- 8957911