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Figure 1: Measurement of the extent of stain by Image J: (a) Gingival margin's total length (representing 100% of microleakage). (b) Gingival margin's real length of microleakage (obtained by proportional mathematic)

Figure 1: Measurement of the extent of stain by Image J: (a) Gingival margin's total length (representing 100% of microleakage). (b) Gingival margin's real length of microleakage (obtained by proportional mathematic)