Overgrowth of cementum found in non functioning tooth?
Cementum hyperplasia
Increased in physiologic function as seen in abutment teeth?
Cementum hypertrophy
Causes of cementum hyperplasia? (3)
- Impacted tooth
- Natural or orthodontically induced movements
- Supraeruption
Part of periodontal ligament which is a remnant of HERS?
Epithelial rests of Malassez
Localized cemental thickening on the root surface?
Enamel pearl
Another term for enamel pearl?
Enamelloma
Mimics subgingival calcular deposits?
Enamel pearls
Sidenote: Enamel pearls may be composed of:
- Enamel only
- Enamel and dentin
- Enamel, dentin and pulp
True or false. When there is calculus, no PDL is attached to enamel.
True
Enamel drips at the center of bifurcations or trifurcations?
Enamel projections
May lead to pockets in furcations?
Enamel projections
True or false. Enamel pearls and projections can be removed through scaling?
False
Cementicles are made up of what type of cementum?
Acellular extrinsic fiber
May be free, attached or embedded
True or false. Both bone and cementum has no nerve supply.
True
Union of cementum and dentin with the alveolar bone?
Ankylosis
True or false. Cementum is avascular?
True
True or false. Alveolar bone is avascular.
False
Resorption of cementum can be due to? (4)
Exfoliation of deciduous teeth Tooth drifting Traumatic occlusion Excessive orthodontic forces
