Root Resorption: Aetiology, Pathology, Diagnosis and Management

A set of vocabulary flashcards covering the key terms and definitions related to root resorption in dentistry.

Root resorption

The progressive loss of dental hard tissues as a result of clastic activities.

Physiologic process

A normal process that occurs in primary dentition leading to the exfoliation of deciduous teeth.

Pathologic condition

An irreversible condition in adult dentition that requires proper management.

Apical periodontitis

Inflammation of the periapical tissues often caused by pulp pathosis leading to resorption.

Howship's lacunae

The site where resorption of mineralized tissue occurs.

Osteoclasts

Multinucleated giant cells that resorb bone and are involved in root resorption.

Predentin

An unmineralized layer produced by odontoblasts that protects the inner dentin from resorption.

Cementoid

The unmineralized layer produced by cementoblasts that protects the cementum from resorption.

RGD sequence

A sequence of peptides that can attract odonto/cemento-clasts to initiate the resorption process.

External inflammatory resorption

The most common form of root resorption, often linked to trauma and inflammation.

Internal resorption

A process takes place within the canal system, often linked to trauma or infection.

Transient apical breakdown (TAB)

A non-infective root resorption usually followed by luxation injuries.

Dental hard tissues

The calcified structures of teeth, including enamel, dentin, and cementum.

Heithersay's classification

A classification system for invasive resorptive lesions based on depth and penetration.

Invasive cervical resorption

Resorption involving the cervical region, often symptomless but destroys dentin and enamel.

Management of resorption

Involves removing stimuli and necrotic tissues and restoring the tooth if possible.

Extractive management

Removal of the tooth when extensive resorption is present and restoration is not possible.

Endodontic therapy

A treatment modality used for resorptive processes involving root canal therapy.