Normal pulp – A clinical diagnostic category in which the pulp is symptom free and normally responsive to vitality testing.
Reversible pulpitis – A clinical diagnosis based upon subjective and objective findings indicating that the inflammation should resolve and the pulp return to normal.
Irreversible pulpitis – A clinical diagnosis based on subjective and objective findings indicating that the vital inflamed pulp is incapable of healing.
Symptomatic – Lingering thermal pain, spontaneous pain, referred pain Asymptomatic – No clinical symptoms but inflammation produced by caries, caries excavation, trauma, etc.
Pulp necrosis – A clinical diagnostic category indicating death of the dental pulp. The pulp is non-responsive to vitality (sensibility) testing.
Previously Treated – A clinical diagnostic category indicating that the tooth has been endodontically treated and the canals are obturated with various filling materials, other than intracanal medicaments.
Previously Initiated Therapy – A clinical diagnostic category indicating that the tooth has been previously treated by partial endodontic therapy (e.g. pulpotomy, pulpectomy).
NOTE: See AAE Glossary of Endodontic Terms for further definitions
Normal apical tissues – Teeth with normal periradicular tissues that will not be abnormally sensitive to percussion or palpation testing. The lamina dura surrounding the root is intact and the periodontal ligament space is uniform.
Symptomatic apical periodontitis – Inflammation usually of the apical periodontium, producing clinical symptoms including painful response to biting and/or percussion or palpation. It may or may not be associated with an apical radiolucent area.
Asymptomatic apical periodontitis – Inflammation and destruction of apical periodontium that is of pulpal origin, appears as an apical radiolucent area and does not produce clinical symptoms.
Acute apical abscess – An inflammatory reaction to pulpal infection and necrosis characterized by rapid onset, spontaneous pain, tenderness of the tooth to pressure, pus formation and swelling of associated tissues.
Chronic apical abscess – An inflammatory reaction to pulpal infection and necrosis characterized by gradual onset, little or no discomfort and the intermittent discharge of pus through an associated sinus tract.
Vital case w/ AP – Stashenko; Yamasaki; Byers (CGRP sprouting)
Torbijork – C fibers resistant to hypoxia/necrosis
Bone loss & AP – Avg 7.1% MBL, 12.5% CBL – Bender 1982
Digital Comparison studies
Film vs digital – root length – NSD – Pitt Ford
Film vs digital – PARL det. – NSD – Mistak/Loushine
Digital (filtered) > D speed – Cortical lesion – Hadley/Replogle
Film vs digital – WL measurement – NSD – Lamus/Katz
Digital (Kodak) > Film – WL (10,15 k) – Goodell/McClanahan
80 – 90% radiation reduction w/ digital – Soh
Lamina dura – Most consistent feature aiding dx of PAP – Kaffe
Strindberg – PDL width/shape, Lamina dura aids dx of PAP
Radiographic Interpretation accuracy –
Brynolf - accuracy increases with added films, 1=74%, 3=87%
Goldman – 47% interobserver, 75% intraobserver (6-8 mo later)
Tewary/Hartwell – digital PAs – 35% interobserver agreement