7/23/2019 sumber kista

1/8

(Fig. 35.11)

A residual cyst is one, that is overlooked after the

causative root or tooth is extracted.CausesThe possible causes are as follows :

An incompletely removed periapical granuloma or

cyst, that potentially enlarges

An impacted tooth associated with a lateral dentigerous

cyst is removed, but the cystic lesion is

unrecognized and is leftin situ, this residual cyst

persists and will enlarge

A cystic lesion develops on either a deciduous

tooth or a retained tooth which either exfoliates or is extracted without knowledge of the underlying

pathologic process.

IncidenceIt is less commonly seen than in the radicular

cysts. It is identified mainly in middle-aged and elderly

patients. There is no sex predilection.

7/23/2019 sumber kista

2/8

SiteThe incidence is greater in the maxilla than in the

mandible. It is typically seen in edentulous sites (Fig.

35.11A).

Clinical featuresMajority of the cases are asymptomatic

and are discovered on radiographic examination

(Fig. 35.11B). Occasionally in case of large residual

cysts, a pathologic fracture or signs of encroachment

on associated structures may be the presenting

symptoms.

PathologyIt is similar to the underlying process that

was initially present.

Treatment (Figs 35.11C to F)It is similar to that which

is employed for a radicular cyst, care should be taken

to maintain and preserve the contour of the edentulous

ridge.

7/23/2019 sumber kista

3/8

- Pre-extraction Radiograph : radiograf sebelum ekstraksi tampak karies yang dalam atau

gigi yang fraktur yang melibatkan pulpa atau diasosiasikan dnegan kista- Bentuk : radiolusensi membulat atau ovoid- Margin : tepi radiopak dengan tampilan unilokular meskipun kista yang terinfeksi tidak

memiliki margin yang tampak jelas

- Appearance :

7/23/2019 sumber kista

4/8

- nukelasi : jika kista tidak besar dan usia pasien

7/23/2019 sumber kista

5/8

7/23/2019 sumber kista

6/8

7/23/2019 sumber kista

7/8

7/23/2019 sumber kista

8/8

The cyst capsule and wall. The capsule consists of

collagenous fibrous connective tissue.

Cyst fluid. The fluid is usually watery and opalescent but

sometimes more viscid and yellowish, and sometimes shimmerswith cholesterol crystals. A smear of this fluid may show

typical notched cholesterol crystals microscopically