Tooth and jaw types

Question 1

Monophyodont meaning & examples?

Answer 1

Only one set of teeth which remain in function throughout life ( ie: nodeciduous teeth)

Rodents , dolphins

Question 2

Polyphyodont meaning & examples?

Answer 2

Many sets of tetth which are continually erupting and replacing those which are lost.

sharks, reptiles including crocodiles.

Question 3

Diphyodont meaning & examples?

Answer 3

Two sets of teeth one designated permanent and one deciduous.

Most domestic animals and man.

Question 4

HOMODONT meaning & examples?

Answer 4

All teeth are generally of the same shape or type.

fish, reptiles, sharks

Question 5

heterodont meaning & examples?

Answer 5

Functionally different types of teeth throughout the dentition.

dogs & cats

Question 6

Thecodont meaning and examples

Answer 6

teeth firmly set in sockets using gomphosis ( a fibrous joint where a conical object is set into a socket and held in place)

dogs, cats & humans

Question 7

acrodont meaning and examples

Answer 7

teeth are firmly ankylosed directly to the alveolar bone without sockets or a true root structure.

lizards, snalkes , fish

Question 8

pleurodont meaning and examples

Answer 8

teeth grow from a pocket on the inside of the jaw

amphibians and some lizards

Question 9

Brachydont meaning and examples?

Answer 9

dentition with a short crown; root ratio

enamel extends to gingival margin

primtes & carnivores

Question 10

hypsodont meaning and examples?

Answer 10

dentition with a longer crown: root ratio Enamel extends well below the ginigval margin.

cow, horses & rodent

Question 11

radicular hypsodont meaning and examples?

Answer 11

a subdivision of hypsodont where the tooth root closes and the teeth cease to grow . As the crown is worn the new crown emerges from the submerged reserve crown

molars and premolars in horses and cows.

Question 12

aradicular hypsodont meaning examples?

Answer 12

dentition without true roots. teeth are continuously growing and additional crown is constantly produced

lagomorphs , rodent incisors

Question 13

secodont dentition meaning and examples

Answer 13

cheek teeth with cutting cusps

carnivore premolars

Question 14

bunodont dentition meaning and examples?

Answer 14

cheek teeth with low rounded cusps

molars in primates, humans, bears and swines

Question 15

lophodont dentition meanmiong and examples

Answer 15

cheek teeth with cusps interconnected by ridges of enamel

elephants and rhinocerous

Question 16

selenodont dentition meaning and examples?

Answer 16

having cheek teeth with cusps which have crescent shaped ename ridges.

even toed ungulates except swine

Question 17

isognathic meaning and examples

Answer 17

having equal jaw widths

man is imperfectly isognathic

Question 18

anisognathic meaning and examples

Answer 18

having uneven jaw width such that the mandibualr molar occlusal zone is narrower than that of the maxillary molar occlusal zone

cats, dogs, cows etc

Question 19

what animal is diphyodont with heterodont teeth types, brachydont crown types, secondont premolars and first mandibular molar, bunodont maxillary molar, thecodont anchorage and anisognathic jaws?

Answer 19

the cat