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It is a progressive disease characterized by destruction of small bile ducts
No, periodontitis is most often the result of chronic gingivitis. Perodontitis the the progressive destruction of gingiva (gums), alveolar bone, and periodontal ligament fibers. Progressive destruction of enamel is a carious lesion (a cavity).
Degenerative
alhizemers
leukaeimia
Addison's Disease
leukemia
Ankylosing Spondylitis
MS
Present progressive, past progressive, and future progressive
There are 6 progressive forms:Present progressive tense.Present perfect progressive tense.Past progressive tense.Past perfect progressive tense.Future progressive tense.Future perfect progressive tense.The progressive tense is also commonly referred to as the continuous tense.
"Ankylosing Spondylitis"