DENT3060 Lecture Notes - Lecture 20: Apical Foramen, Endodontics, Gums
Document Summary
Classification of pd gingival diseases chronic pd aggressive pd. Pd as manifestation of systemic diseases necrotising pd diseases abscesses of periodontium. Interaction between 2 diseases of endo & pd origin, on same tooth, irrespective of sequence. Clinical/radiographic exams do not always permit identification of primary cause of lesion. Infections of combined perio-endo origin may result in: >probing depth, swelling, bop, suppuration, fistula formation, tenderness to percussion, tooth mobility, bone loss, pain. Plaque-associated pd begins at margin of gingiva, proceeds apically. Endo infections enter pdl at apical foramen through lateral/accessory canals, proceed coronally. Apical foramen: apical granulomas from necrotic pulps extensive affect lateral aspects of teeth extensive bone loss. Lateral/accessory canals: (and foramina: present in great no. , esp. in furcated teeth infections from pulp communicate with periodontium at locations other than tooth apex. Acute endo infections rapid/extensive destruction of attachment. Following endo therapy, lesions usu. heal without persistent pd defect.