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Amalgam alternatives-microleakage evaluation of clinical procedures. Part II: direct/indirect composite inlay systems
D Ziskind1, B Elbaz, Z Hirschfeld
1Department of Restorative Dentistry, Hadassah School of Dental Medicine, Hebrew University, Jerusalem, Israel.
Journal of Oral Rehabilitation
|August 29, 1998
Summary
This study compared two composite inlay systems, finding no significant difference in dye leakage between direct and indirect techniques. Composite adaptation and bonding to dentin are key factors influencing leakage inlays.
Area of Science:
- Restorative Dentistry
- Dental Materials Science
Background:
- Composite inlays offer an alternative to traditional fillings.
- Understanding factors influencing marginal integrity is crucial for longevity.
Purpose of the Study:
- To evaluate dye penetration in two composite inlay systems using direct and indirect techniques.
- To compare the efficacy of different adhesive and bonding protocols.
Main Methods:
- Forty extracted premolars and molars underwent Class II cavity preparations.
- Restorations were placed using direct and indirect techniques with two inlay systems.
- Specimens were subjected to thermal cycling and stained with Basic fuchsin dye.
Main Results:
- No statistically significant difference in dye penetration was observed between direct and indirect techniques for either composite inlay material at the cervical margin.
- Fuchsin staining in the occlusal area was confined to the enamel in all tested groups.
- Composite adaptation and bonding to dentin emerged as significant factors influencing microleakage.
Conclusions:
- Both direct and indirect composite inlay techniques demonstrate comparable marginal integrity at the cervical margin.
- The quality of composite adaptation and bonding to dentin is paramount for preventing microleakage in composite inlays.