Endo‑perio lesion
by vanessa leon
1. Periodontal disease or sequelae of periodontal treatment does not affect the pulp
1.1. Decrease in number of pulp cells, an increase in dystrophic calcifications, fibrosis, direct inflammatory affect.
2. Etiological factors
2.1. Nonliving pathogens
2.2. Living pathogens
2.2.1. Bacteria, fungi and viruses
3. Contributing factors
3.1. Trauma, root resorptions, perforations, and dental malformations
4. The condition of the pulp
4.1. Microbial invasion
4.1.1. A vital pulp
4.1.1.1. Resistant to microbial invasion
4.1.1.2. A necrotic pulp is rapidly invaded and colonized