Classic Lit Concepts Flashcards
(6 cards)
Palatogingival Grooves
- Abnormalities in the root surface that extend from the central fossa of incisors, over the cingulum and continue apically parallel to the long axis of the roots.
- They are cause by an invagination of the inner enamel epithelium and HERS during the tooth development.
- They are very thin and deep making it extremely difficult to clean, it can house bacteria that leads to degradation of the sulcular epithelium that will progress to the formation of a localized periodontal lesion.
Accessory (lateral) Canals formation
Failure of HERS when there is lack of Odontoblasts differentiation and dentin formation.
Root proximity
Highest chance of root proximity is at mandibular incisors and distal root of maxillary
Vertical Root Fracture:
Is a pathologic facture of the root that is vertically oriented and they entail from the coronal to the apical portion of the roots, allowing for bacterial infection that will cause periodontal localized infection and bone loss.
Open Contacts:
Open contact is referred to a situation when we have adjacent teeth that are not touching. They allow for food impaction on the gingiva creating a inflamation. According to the AAP, is the forceful wedging of food into the interproximal space by chewing pressure or the forcing of food interproximally by tongue or cheek pressure”
Referred to a situation when we have adjacent teeth that are not touching. They allow for food impaction on the gingiva creating a inflamation. According to the AAP, is the forceful wedging of food into the interproximal space by chewing pressure or the forcing of food interproximally by tongue or cheek pressure”
Overhanging:
They are and excess of dental restoration material that is projecting pass the margin of a tooth or cavity preparation. They promote plaque accumulation that can affect the periodontal health and can also displace the gingiva from its normal position.
