Anti-Inflammatory Effects of Melatonin and 5-Methoxytryptophol on Lipopolysaccharide-Induced Acute Pulpitis in Rats

Figure 1

The histomorphologic parameters were classified according to a standardized scoring system based on a grading scale. A half circle was placed tangentially to the inner curve of the tooth arch. The uninstrumented root canal areas were divided into equal angular regions (45 to 105 degrees) which forming the scoring system.