This document defines and provides examples of different types of tooth structures and replacement patterns in animals: - Monophyodont animals have one set of teeth that are not replaced, like beluga whales. - Diphyodont animals have two sets of teeth - deciduous (baby) teeth that are replaced by permanent teeth, like humans. - Polyphyodont animals have multiple successive sets of teeth throughout life, like crocodiles and geckos. - Different tooth morphologies include homodont (similar teeth), heterodont (different teeth), and bunodont (teeth with tubercles). Tooth attachment structures also vary between animals.

1. Dr. Yumna Shaheen Ali
Lecturer
Dental Hygiene and Technology

2. 
 Animals having one set of teeth of which none are
replaced at a later stage of growth
 Examples:
 Beluga whale
 Aquatic mammals (Cetacea) include a group of
toothed whales(Odontoceti) that are mostly homodont
and monophyodont
Monophyodont

3. 
Monophyodont
Beluga whale

4. 
 Any animal with two successive sets of teeth,
initially the "deciduous" set and consecutively the
"permanent" set.
 Most mammals are diphyodonts as to chew their
food they need a strong, durable and complete set of
teeth.
 Examples:
 Human
 Most mammals are diphyodont, except kangaroos,
elephants and manatees.
Diphyodont

5. 
Diphyodont

6. 
Diphyodont

7. 
 Animals having several or many sets of teeth in
succession
 Examples:
 Polyphyodonts include most toothed fishes, many
reptiles such as crocodiles and geckos
Heterophyodont

8. 
Geckos
Heterophyodont

9.  Crocodile
Heterophyodont

10. 
 Teeth that are all of similar form
 Homo means same, dont means dentition
 Homodont refers to same set of teeth
 Examples:
 Most reptiles
 Dolphins
Homodont

11. 
Homodont

12. 
 Animal which possesses more than a single tooth
morphology
 Examples:
 Most mammals
Heterodont

13. 
Heterodont

14. 
 Having tubercles on the crown of the molar teeth
 Example:
 Posterior teeth in pig
 Human teeth
Bunodont

15. 
Bunodont

16. 
 Pleurodont is a formation of the teeth that are fused
(ankylosed) by their sides to the inner surface of the
jaw bones
 Examples:
 Lizards
Pleurodont

17. 
Pleurodont

18. 
 Conodonts (kōnos, "cone", + odont, "tooth") are
extinct agnathan chordates resembling eels, classified
in the class Conodonta.
 For many years, they were known only from tooth-
like microfossils found in isolation and now
called conodont elements.
 Their teeth are called codont.
 They are pointed cone shaped
Codont

19. 
Codont