Oral pathology Regressive Alterations of teeth- 1 Attrition What is ATTRITION OF TEETH

1. Regressive Alterations
of the Teeth - PART 1
(ATTRISION)

2. CONTENTS
Regressive Alterations of Teeth
Attrision
01
02

3. Regressive Alterations are the group of
retrogressive changes in the teeth, which
occurs due to non bacterial causes and
results in wear and tear of tooth
structures with impairment of function.
1.What is regressive Alterations?

5. DENTAL CARIES

6. Causes of loss of enamel after tooth
formation:-
• Dental caries
• Trauma
• Attrision
• Abrasion
• Abraction
• Erosion
• Bruxism
• Dentiogenesis imperfecta
• Amelogenesis imperfecta
• Radiation therapy.

7. Dental Trauma

8. RADIATION THERAPY

9. Dental caries

10. 2.Attrision Of Teeth:-
Attrition may be defined as the
physiologic wearing away of a
tooth as a result of tooth-to-
tooth contact, as in mastication.

12. • This occurs only on the occlusal, incisal,
and proximal surfaces of teeth, not on
other surfaces unless a very unusual
occlusal relation or malocclusion exists.
• This phenomenon is physiologic rather
than pathologic, and it is associated with
the aging process.

14. Clinical manifestation:-
• The older a person becomes, the more attrition is
exhibited.
• Seen in both permanent and deciduous dentition.
• Children may suffer either from dentinogenesis
imperfecta or Amelogenesis imperfecta.
• Appearance of a small polished facet on a cusp tip
or ridge.

16. • Slight flattening of incisal edge.
•
• Reduction in cusp height.
•
• Flattening of the occlusal inclined planes.
•
• Mens exhibit more severe Attrision than
women... Because of greater masticatory force
of men.

18. • Exposure of dentinal tubules in severe
cases of Attrision may lead to tooth
hypersensitivity.
•
• Attrision may occur on restoration of
tooth.
•
• It can also lead to fracture of cusp of teeth
or restoration.

19. Causes of Attrision:-
• Abnormal occlusion
• Premature extraction of teeth
• Abnormal chewing habits eg:- Bruxism, betel nut
and tobacco chewing
• Structural defects in teeth (Amelogenesis
imperfecta and dentinogenesis imperfecta

21. Treatment :-
• Correction of Developmental abnormalities
causing traumatic occlusion.
• Correction of parafunction chewing habits.
• Protection of tooth by metal or metal ceramic
crowns where structural defects exist. (eg.
Amelogenesis or dentinogenesis imperfecta).
• Construction of occlusal guard, if the habit of
Bruxism is persisting.

22. T H A N K Y O U