root resorption: aetiology, pathology, diagnosis and management · 2021. 3. 20. · exfoliation of...
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Root resorption:aetiology, pathology,
diagnosis and management
Dr Rawan Abu ZaghlanDDS(Hons), MFDS RCSI, MSc(Rest Dent), M(Endo) RCSEd, JDB(Endo)Assistant Professor and Consultant EndodontistSchool of Dentistry/University of Jordan
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Definition
• Dental resorption is the progressive loss of dental hard tissues as a result of clastic activities• It may occur as a physiologic (primary dentition) or pathologic
phenomenon.
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In the primary/mixed dentition this is a normal physiologic process resulting in exfoliation of deciduous teeth but in the adult dentition is largely pathological
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Pathways for bacteria into the root canal system
Caries Cracks and fractures
Marginal breakdown (defective restorations)
Periodontal disease
Defect between enamel & cementum(exposed dentine)
Irreversible pulpitis
Reversible pulpitis
Normal pulp
Pulp necrosis
Treated
Untreated
Untreated
Insult
Apical periodontitis
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Apical periodontitis
Widened PDL space untreated Loss of lamina dura Untreated Periapical radiolucency
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