Evaluation of the effect of light intensity and direction on microleakage in composite resins

Key Points

• This research evaluates how light intensity and direction affect microleakage in composite resins due to polymerization shrinkage.
• Analyzed the impact of varying light intensity on polymerization shrinkage.
• Examined the effect of different light application directions on microleakage.
• Considered the role of material selection in conjunction with light factors.
• High light intensity decreases working time but increases polymerization shrinkage.
• Variation in light direction significantly influences microleakage.
• Optimal light application settings are crucial for clinical success.