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Figure 1: Illustration of the four experimental groups and their respective fragments (Groups I, II, and III: 1 – coronal portion; 2 – furca region; 3 and 4 – radicular portion. Group IV: 1 and 2 – root fragments. *Furca lesion)

Figure 1: Illustration of the four experimental groups and their respective fragments (Groups I, II, and III: 1 – coronal portion; 2 – furca region; 3 and 4 – radicular portion. Group IV: 1 and 2 – root fragments. *Furca lesion)