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Posterior composites: Update on cavities and filling techniques
J Sabbagh1, R J McConnell2, M Clancy McConnell2
1Restorative and Aesthetic Dentistry Department, School of Dentistry, Lebanese University, Beirut, Lebanon.
Journal of Dentistry
|November 28, 2016
Summary
Minimal cavity preparations are recommended for posterior resin composite restorations to preserve tooth structure. Newer bulk-fill resin composites offer advantages like reduced placement time, improving tooth survival rates.
Area of Science:
- Dentistry
- Restorative Dentistry
- Dental Materials Science
Background:
- Traditional cavity preparations often involve removing healthy tooth structure alongside carious lesions.
- Resin composite restorations have become a popular alternative to amalgam due to aesthetic and biocompatibility advantages.
Purpose of the Study:
- To examine optimal cavity designs for posterior resin composite restorations.
- To discuss various resin composite filling techniques, including bulk-fill systems.
Main Methods:
- A comprehensive literature search was conducted using Medline.
- Inclusion criteria were pre-defined based on relevant keywords.
- Literature regarding cavity preparation for both amalgam and resin composite restorations was reviewed.
Main Results:
- Minimum cavity preparations are advised, focusing on removing only the carious lesion.
- Preservation of healthy tooth structure is crucial for the bonding process.
- Bulk-fill resin composite systems offer advantages such as reduced placement time.
Conclusions:
- Adopting a philosophy of minimal cavity preparation enhances the longevity of teeth.
- Protecting remaining tooth structure is essential for successful resin composite bonding.
- Newer bulk-fill restorative resins present significant clinical advantages.

