2. STOCKDEFINITION
Lesion with sub marginal or intra bony peri radicular bone loss of pulpal and/or
periodontal origin that communicates with the oral cavity via probing defect.
An isolated, usually narrow, deep probing depth of pulpal or periodontal origin.
4. Type I - Tooth in which symptoms clinically and radiographically simulate periodontal disease
but are due to pulpal inflammation
Type II - Tooth that has both pulpal and periodontal disease concomitantly
Type III - Tooth has no pulpal problem but require endodontic therapy plus root amputation to
gain periodontal healing
Type IV - Tooth that clinically and radiographically simulate pulpal or periapical disease but in
fact have periodontal disease
WEINE
5. GROUP 1- LESIONS REQUIRING ENDODONTIC TREATMENT ONLY
• Necrotic pulp and apical granulomatous tissue replacing periodontium with or without sinus
tract
• Chronic peri apical abscess with sinus tract
• Longitudinal and horizontal root fractures
• Pathologic and iatrogenic root perforations
• Teeth with incomplete apical root development
• Endodontic implants
• Teeth that require hemi section
• Root submergence
GROSSMAN
6. GROUP 2 - LESIONS REQUIRING PERIODONTAL TREATMENT ONLY
• Occlusal trauma causing reversible pulpitis
• Occlusal trauma plus gingival inflammation resulting in pocket formation and reversible
pulpitis
• Supra bony or infra bony pocket formation treated with overzealous root planning and
curettage leading to pulpal sensitivity
• Extensive infra bony pocket formation extending beyond the root apex and sometimes
coupled with lateral or apical resorption yet with pulp that responds with in normal limits to
clinical testing
7. GROUP 3 - LESIONS REQUIRING COMBINED ENDO-PERIO TREATMENT
• Any lesion in Group I That results in irreversible reactions in the attachment apparatus and
requires periodontal treatment
• Any lesion in Group II that results in irreversible reactions to the pulp tissue and also requires
endodontic treatment
