Oral Pathology
Notes- Contemporary Oral Patholgy
Physical and Chemical injuries
1) TEETH:
Physical definition causes Clinical feature
,injury
Attrition ● Loss of tooth structure ● Bruxism ● present on the cuspal and incisal edges of
because of the mechanical ● class II relationships the anterior teeth
action of mastication. ● dietary habits. ● and on the tips of the cusps of molars that
are in occlusion
● The exposed dentin undergoes sclerosis of
the dentinal tubules while the pulp deposits
layers of calcified tissue, referred to as
tertiary or reparative dentin
Abrasion: ● Abnormal loss of tooth ● overuse and misuse of the toothbrush ● Severe abrasion predominantly involves the
structure because of non ● unhygienic habits will produce characteristic anterior and premolar teeth of the arches,
masticatory physical patterns of abrasion with the maxillary teeth more severely
friction ● habitual pipe smokers. affected than the mandibular
● Linear patterns of tooth loss on the exposed
cementum of older patients occur when
dental floss is improperly used.
Erosion ● A loss of tooth structure as ● Liquid with a pH in the acidic range ● foods produce a unique pattern of smooth
the result of nonbacterial ● an excessive diet of foods with an acid pH, such saucer-shaped cavitations of the labial
chemical causes. as citrus fruits and carbonated beverages (soft surfaces of the anterior teeth
drinks)
● regurgitation of acidic stomach contents
develop erosions on the lingual surfaces of the
teeth
● Occupational
● Bulimia
,
Notes- Contemporary Oral Patholgy
Physical and Chemical injuries
1) TEETH:
Physical definition causes Clinical feature
,injury
Attrition ● Loss of tooth structure ● Bruxism ● present on the cuspal and incisal edges of
because of the mechanical ● class II relationships the anterior teeth
action of mastication. ● dietary habits. ● and on the tips of the cusps of molars that
are in occlusion
● The exposed dentin undergoes sclerosis of
the dentinal tubules while the pulp deposits
layers of calcified tissue, referred to as
tertiary or reparative dentin
Abrasion: ● Abnormal loss of tooth ● overuse and misuse of the toothbrush ● Severe abrasion predominantly involves the
structure because of non ● unhygienic habits will produce characteristic anterior and premolar teeth of the arches,
masticatory physical patterns of abrasion with the maxillary teeth more severely
friction ● habitual pipe smokers. affected than the mandibular
● Linear patterns of tooth loss on the exposed
cementum of older patients occur when
dental floss is improperly used.
Erosion ● A loss of tooth structure as ● Liquid with a pH in the acidic range ● foods produce a unique pattern of smooth
the result of nonbacterial ● an excessive diet of foods with an acid pH, such saucer-shaped cavitations of the labial
chemical causes. as citrus fruits and carbonated beverages (soft surfaces of the anterior teeth
drinks)
● regurgitation of acidic stomach contents
develop erosions on the lingual surfaces of the
teeth
● Occupational
● Bulimia
,
