stain

Question 1

what is extrinsic staining?

Answer 1

staining on the tooth surface that
may be removed

Question 2

what is intrinsic stating?

Answer 2

staining within teeth and cannot be removed by scaling and polishing

Question 3

examples of intrinsic staining related to tooth development?

Answer 3

Hypoplastic enamel
Fluorosis
Tetracycline ingestion during tooth formation
Systemic upset during tooth formation

Question 4

intrinsic staining after eruption?

Answer 4

Dental caries or restorations
Pulp necrosis

Question 5

what is hypo plastic enamel caused by?

Answer 5

caused by defective enamel matrix formation while teeth are developing

Question 6

What are conditions that cause hypoplasia?

Answer 6

Chicken pox
Measles
Systemic - fluoride

Question 7

Hypoplasia may affect enamel or dentine what is it called when it affects them?

Answer 7

AMELOGENESIS IMPERFECTA
DENTINOGENESIS IMPERFECTA

Question 8

What is fluorosis caused by?

Answer 8

Fluoride ingestion

Question 9

What is mild fluorosis and what is severe?

Answer 9

Mild- 2ppm
Severe- 5ppm

Question 10

What can cause intrinsic staining?

Answer 10

Tetracycline

Question 11

What is tetracycline stain?

Answer 11

Stain deposited along incremental lines of dentine to a lesser extent enamel

Question 12

What is pulp necrosis caused by?

Answer 12

Trauma or periapical abscess

Question 13

What is extrinsic stain caused by?

Answer 13

Tobacco stain
Chlorhexidine mouth wash stain
Green/ black stain

Question 14

Where does tobacco strain occur the most?

Answer 14

Linguals and palatally but may occur anywhere

Question 15

Where does chlorehexidine stain?

Answer 15

Occurs at cervical margins and lingual and
palatal surfaces, may also stain the tongue

Question 16

Green stain is most commonly found commonly with who?

Answer 16

most commonly found with children and
adolescents

Question 17

What is the composition of stain?

Answer 17

Chromogenic bacteria and fungi

Decomposed haemoglobin

Question 18

Hypoplasia may affect enamel or dentine or both wha is it called when it affects them?

Answer 18

AMELOGENESIS IMPERFECTA
DENTINOGENESIS IMPERFECTA

Question 19

what is fluorosis?

Answer 19

Caused by excess fluoride ingestion

Question 20

what does severe fluorosis look like?

Answer 20

pitting and brown staining

Question 21

what is tetracycline stain caused by

Answer 21

antibiotic which if administered during pregnancy or early childhood, can cause intrinsic staining

Question 22

what does tetracycline stain look like?

Answer 22

Stain deposited along incremental lines of dentine and to a lesser extent enamel
May vary in colour from light to dark yellow /brown or light to dark grey
Severity depends on duration

Question 23

what is pulp necrosis?

Answer 23

decomposition of pulp

Question 24

how can pulp necrosis occur?

Answer 24

May be due to trauma or periapical abscess

Question 25

what are examples of extrinsic staining?

Answer 25

Tobacco stain Stain from dietary products Green/black stain Chlorhexidine mouth-wash stain

Question 26

where does chlorhexidine stain occur?

Answer 26

Occurs at cervical margins and lingual and palatal surfaces May also stain tongue

Question 27

where does tobacco stain occur?

Answer 27

frequently occurs lingually and palatally but may occur anywhere

Question 28

what is green stain?

Answer 28

Enamel under stain usually decalcified, may be lighter or darker green.

Question 29

what is the composition of stain?

Answer 29

Chromogenic bacteria and fungi Decomposed haemoglobin