Disturbances Of Teeth

Front 1

def resorption

Back 1

Removal of tooth (usually root) structure by physiologic processes of adjacent tissue.

Front 2

def of internal resorption

Back 2

associated with cells in the dental pulp (may follow pulpal injury, such as physical trauma or caries related pulpitis.

Front 3

def of external resorption

Back 3

associated with cells in the periodontal ligament (may be associated with several factors)

Front 4

“Pink Tooth of Mummery” is from what

Back 4

internal resorption-
the crown displays a pink discoloration

Front 5

factors associated with external resorption

Back 5

a) Tooth eruption -
b) Pathologic lesions PRESSES ON IT
- Inflammation/infection -
- Tumors or cysts -
- Systemic bone disease -
c) Reimplantation of teeth -
d) Tooth movement (excessive mechanical or occlusal force) -
e) Impaction of teeth -
f) Idiopathic - (this may be seen sometimes in several teeth)

Front 6

factors assoc with resorption

Back 6

1) External Resorption (see Box 2-3, page 66)
a) Tooth eruption -
b) Pathologic lesions PRESSES ON IT
- Inflammation/infection -
- Tumors or cysts -
- Systemic bone disease -
c) Reimplantation of teeth -
d) Tooth movement (excessive mechanical or occlusal force) -
e) Impaction of teeth -
f) Idiopathic - (this may be seen sometimes in several teeth)
2) Internal Resorption
a) Pulpal inflammation – USUALLY. PIC: MIDDLE OF ROOT, HUGE LUCENCY AREA
b) Tumor -
c) Idiopathic – LIKE IMPACTED TOOTH

Front 7

tx for resorption

Back 7

Treatment
a) External Type - Flap surgery and alloy patch OR extraction and elimination of accelerating factors
b) Internal Type - Root canal therapy OR extraction

Front 8

eitology and incidence of pulp stones

Back 8

1) Unknown etiology
2) Incidence increases with age
3) Studies on overall incidence show calcification may be found on 87% of teeth (Willman) but only 15-20% are large enough to show on dental x-rays. By ages (Hill) are seen in:
66% of teeth in 10-20 year olds,
90% of teeth in 50-70 year olds have calcifications
4) May be microscopic in size or large enough to be seen on x-rays
5) May begin as a calcification around a central nidus of collagen or necrotic cells.

Front 9

what are two type so of calcifications?

Back 9

a) True denticles
- masses of calcified tissue that resembles dentinal tubules.
- look more like secondary dentin than primary dentin.
- more common in pulp chamber than in root area.
- "free" type does not appear to be attached to dentinal wall.
- "attached" type is an extension of dentinal wall and is the most common type seen.
b) False denticles (Dystrophic Calcification)
- localized masses of calcified tissue with NO dentinal tubules.
- often show lamellar pattern (concentric rings) around central nidus.
- may be large enough to fill pulp chamber.

Front 10

what are Cementicles

Back 10

Small calcified tissue in/AROUND periodontal ligament
2) May or may not be formed of true cementum

Front 11

what are etiology of cementricles??

Back 11

1) Exact cause of formation is unknown
2) Most are thought to be a type of dystrophic calcification
3) Most commonly formed by calcification of epithelial rests