Very small invisible fillings done under the Operating Surgical Microscope preserve the healthy tooth structure and give it a natural look. If the carious part is very small, then it can be cleaned preserving the healthy enamel which becomes just impossible when one tries to remove the caries with the naked eye. This is where the use of microscope becomes indispensable to conserve the tooth structure and prevent weakening of the tooth. Without the microscope such fine microfillings are unimaginable.