Dental Anomalies & Final Edition.pdf by Alsayed

✨ Dental Anomalies Presentation

🔍 Dive into our comprehensive PPT on Dental Anomalies!

📍 Key Points Covered :
🔸 Definition of Dental Anomalies
🔸 Developmental and Acquired Factors
🔸 Developmental Factors :
▪️ Size ▪️ Number ▪️ Shape/Form
▪️ Defects : 🔹 Crown 🔹 Root
🔸 Acquired Factors :
▪️ Attrition ▪️ Abrasion ▪️ Erosion
▪️ Resorption : 🔹 Internal 🔹 External
▪️ Hypercementosis

📌 How many points did you know before watching the presentation?

❃ Under the supervision of:
Dr. Noha Elwassefy
Dr. Nessma Sultan

1. DENTAL ANOMALIES
Dental Surgery Students
Faculty of Dentistry
Supervised by : Dr.Nessma Sultan

2. Dental Anomalies Definition
?
?
?
?
Anomaly defined as something that is noticeably
different or deviates from the norm
caused by complex multifactorial interactions
between genetic, epigenetic, and environmental
factors during the long process of dental
development
Most common missing permanent teeth are
1. Third molars 2. Maxillary lateral incisors
3. Mandibular second premolar
Least likely permanent tooth to be missing is
The canines

3. Classification of Dental Anomalies
Developmental Aquired
SHAPE / FORM
NUMBER
SIZE
DEFECTS
OF CROWN
(ENAMEL) OF ROOT
EROSION
ABRASION
ATTRITION
RESORBTION
HYPER
CEMENTOSIS
INTERNAL
EXTERNAL

4. Developmental
Factors

5. Developemental
1. Size
MacrodontiaMicrodontia
Microdontia
Generalized Microdontia1.
All teeth are smaller than normal

6. Developemental
Localized Microdontia2.
Affects most often maxillary
lateral incisior + 3rd molar
these 2 teeth are most often
congenitally missing
( Peg Lateral )

7. Developemental
1. Size
MacrodontiaMicrodontia
Macrodontia
Generalized Macrodontia1.
All teeth are larger than normal

8. Developemental
Localized Macrodontia2.
Hemangiom
Hemifacial Hypertrophy

9. Developemental
2. Number
HypodontiaHyperdontia
Supplemental teeth
Anodontia
Hyperdontia
Many are impacted
cleidocranial dysostosis ,
gardner syndrome

10. lack of development of one
or more teeth Permanent
Developemental
2. Number
HypodontiaHyperdontia Anodontia
Hypodontia

11. Developemental
2. Number
HypodontiaHyperdontia
when all teeth are missing
Anodontia
Anodontia
ectodermal dysplasia

12. Developemental
2. Number
HypodontiaHyperdontia Anodontia

13. Developemental
3. Shape / Form
GeminationDens in Dente Fusion
Dens in Dente
The outer surface of the tooth crown
invaginates or turns itself inward
before mineralization

14. Fusion
Developemental
3. Shape/ Form
GeminationDens in Dente
Gemination
Abnormally shaped crown that is
extra wide due to the development
of two crowns from one tooth germ

15. Developemental
3. Shape / Form
GeminationDens in Dente Fusion
An abnormally shaped tooth that
may appear as an extra wide crown,
a normal crown with an extra root,
or other combinations resulting from
the union of two adjacent tooth
germs by dentin during development
Fusion

16. Root (Dilaceration)
Developemental
4. Defects
Crown(Enamel Hypoplasia)
Enamel Hypoplasia
Genetic
Illness or Vitamin Deficiency
_
Local infection or Trauma
_

17. Developemental
Angulation or a sharp bend or curve
in root or crown of a formed tooth
Dilaceration
Root (Dilaceration)
4. Defects
Crown(Enamel Hypoplasia)
Trauma to a developing tooth can cause
root to form at an angle to normal

18. Acquired
Factors

19. Acquired
1. Attrition
is the loss of tooth structure or tissue
caused by tooth-on-tooth contact
Cause : bruxism
Lead to :
If the attrition is severe
the enamel can be completely worn
away leaving underlying dentin exposed
Flat facets

20. Acquired
Using too much pressure
when you brush your teeth
2. Abrasion
Biting on your fingernails
is the loss of tooh structure caused by
food or foreign body contact
Cause :
Lead to : the enamel can be worn away

21. chemicals and acids
in food and medicine
Acquired
3. Erosion
is the loss of tooth enamel caused
by acid attack
Cause :
Lead to :
it can lead to the loss of
tooth structure

22. Acquired

23. External
Acquired
4. Resorbtion
Acute trauma - direct and indirect pulp
cap - enamel invagination
Internal
Internal
Cause :

24. Acquired
Tooth root Unerupted tooth crown
External
4. Resorbtion
Internal
External
Cause :
Reimplantation - local inflammation -
too much mechanical forces
Features :
Shortening Flattening

25. External
Acquired
4. Resorbtion
Internal

26. Super eruption
acromegaly
Inflammation
Acquired
5. Hypercementosis
Cause :
(lead to) :
Too much occ forces

27. Wait !!!!!!!!
Alsayed Eid

28. Do you like to take
CARD ?

29. Let’s answer questions
This Case is :
A. Macrodontia
B. Abrasion
C. Microdontia
D. Erosion
Answer : A
This Case is :
A. Hyperdontia
B. Abrasion
C. Hypodontia
D. Erosion
Answer : C

30. THANK
YOU