What causes symptomatic apical periodontitis?

Problems that lead to persistent apical periodontitis include: inadequate aseptic control, poor access cavity design, missed canals, inadequate instrumentation, debridement and leaking temporary or permanent restorations.

What are the predominant cells in acute traumatic apical periodontitis?

Wahlgren et al. [80] reported that PMN cells and macrophage like cells expressed the staining with MMP-8 specific antibody, the PMN cells being the predominant cell type to express MMP-8 in apical periodontitis.

What causes periapical periodontitis?

Periapical periodontitis or apical periodontitis (AP) is an acute or chronic inflammatory lesion around the apex of a tooth root, most commonly caused by bacterial invasion of the pulp of the tooth.

What is apical pathology?

Apical periodontitis is the most frequently encountered and therefore the most pertinent pathological process within endodontology. In the vast majority of cases, it occurs when microbes from deep carious lesions infiltrate the dental pulp and establish an infection.

What bacteria is involved in periapical periodontitis?

Bacterial named species frequently detected in primary infections, including both acute and chronic apical periodontitis, belong to diverse genera of gram-negative (Fusobacterium, Dialister, Porphyromonas, Prevotella, Tannerella, Treponema, Campylobacter, and Veillonella) and gram-positive (Parvimonas, Filifactor.

Why is it called Phoenix abscess?

A phoenix abscess is an acute exacerbation of a chronic periapical lesion. It is a dental abscess that can occur immediately following root canal treatment. Another cause is due to untreated necrotic pulp (chronic apical periodontitis). It is also the result of inadequate debridement during the endodontic procedure.

What is the most commonly encountered microorganism in pulp and peri apical infections?

The two most prevalent species among the collected samples were Peptostreptococcus and Streptococcus spp.

What is the difference between acute apical abscess and chronic apical abscess?

A chronic apical abscess occurs gradually with little or no discomfort and occasional discharge of pus. On an X-ray, a chronic abscess will display bone destruction as dark regions in the bone, also known as radiolucencies. An acute apical abscess occurs quickly and involves pain without stimulation.

What is the difference between a periapical abscess and a periodontal abscess?

Periapical (tooth) abscess is the most common of three. It occurs in the tooth (inside the soft pulp), typically as a result of tooth decay. Pus may appear at the gum line, but in most cases ends up in surrounding tissue. Periodontal abscess is usually found deep in the gum pockets (between the teeth and gums).

What is the difference between periapical abscess and periodontal abscess?

What type of bacteria causes periodontitis?

The bacteria associated with periodontal diseases are predominantly gram-negative anaerobic bacteria and may include A. actinomycetemcomitans, P. gingivalis, P.

What are the 4 stages of periodontal disease?

Know The 4 Stages of Gum Disease

• 1: Gingivitis. The first stage of gum disease is Gingivitis or gums inflammation, without loss of bone.
• Stage 2: Initial Periodontitis.
• Stage 3: Mild Periodontitis.
• Stage 4: Progressive Periodontitis.

Which two bacteria are most common in endodontic infection?

This is consistent with the results of previous studies indicating 69% facultative anaerobics and 70% Gram positive bacteria in the infected root canals. The two most prevalent species among the collected samples were Peptostreptococcus and Streptococcus spp.

What is the difference between apical periodontitis and apical abscess?

Periodontal Abscess is caused due to impaction of foreign body in the Gums leading to an abscess. It is different from Acute apical periodontitis as the infection is passed into the periodontium through the root canal.

What bacteria causes periodontal abscess?

Porphyromonas gingivalis, Prevotella intermedia, and other Prevotella spp. were the predominant bacteria of human periodontal abscesses.