- Acute periapical abscess
- Swelling
- Vertical pain = tenderness on percussion
- Vestibular tenderness and obliteration = pathognomonic sign
- Widening of PDL = Only feature. It takes time for r/g features to develop, by that time acute has been converted into chronic
- Chronic Periapical abscess
- Carious tooth
- Sinus tract = pus will come out
- Hence, there will be a breach in the continuity of lamina dura
- Diffuse, ill-defined radiolucency surrounding root apex
- Periapical Granuloma
- Granuloma is made up of granulation tissue. It is formed due to new vascularizations.
- May or maynot be corticated
- Size is less than 1.5 cm in diameter
- Well defined
- Periapical cyst
- Well defined
- Surrounding corticated or sclerotic border
- Size is more than 1.5 cm
- Infected Cyst
- Partially well defined
- Corticated border = evident only in few areas
- PERIAPICAL CEMENTAL DYSPLASIA 2M*
- Site = mandibular anteriors
- Teeth = vital
- Multifocal
- Appearing as periapical radiolucency
- RL = initial stage
- Mixed = intermediate stage
- RO = mature stage
- Phoenix abscess
- Acute exacerbated phases of chronic periapical abscess
- Pt complains that Every 6 months, swelling and pain
- Pulp is non vital
- Lateral periodontal Cyst
