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  Indian J Med Microbiol
 

Figure 4: Photomicrograph of a sample in propolis group after 4 weeks (a) showing apical closure with dentin formation (H and E, ×100) and a line of demarcation between the dentin of the root and the newly formed dentin (arrow) with marked decrease in its dentinal tubules and the odontoblastic layer (heads of arrows, H and E, ×400) (b). Formation of a new layer of dentin with odontoblastic layer on the inner root wall in propolis group after 8 weeks (H and E, ×400) (c). The control group after 2 weeks (d) showing thin root dentin, open apex, and empty root canal space (H and E, ×100), dense inflammatory cell infiltrate after 4 weeks (e) (H and E, ×200) and internal root resorption after 8 weeks (f) (H and E, ×200)

Figure 4: Photomicrograph of a sample in propolis group after 4 weeks (a) showing apical closure with dentin formation (H and E, ×100) and a line of demarcation between the dentin of the root and the newly formed dentin (arrow) with marked decrease in its dentinal tubules and the odontoblastic layer (heads of arrows, H and E, ×400) (b). Formation of a new layer of dentin with odontoblastic layer on the inner root wall in propolis group after 8 weeks (H and E, ×400) (c). The control group after 2 weeks (d) showing thin root dentin, open apex, and empty root canal space (H and E, ×100), dense inflammatory cell infiltrate after 4 weeks (e) (H and E, ×200) and internal root resorption after 8 weeks (f) (H and E, ×200)