Tooth wear

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TOOTH WEARDr.Huda Y K
Introduction
Non carious tooth tissue loss is defined as surface loss due to a disease process other than dental caries.
Non Carious lesions can be broadly classified as
Tooth wear
ABRASION
ABFRACTION
ATTRITION
EROSION
Clinically however, it is difficult (if not at times impossible) to isolate a single aetiological factor when a patient presents with tooth wear
ABRASION
Can be defined as the surface loss of tooth structure resulting from direct frictional forces between the teeth and external objects or from frictional forces between contacting components in the presence of an abrasive medium
Abrasive Toothpaste
Intensive Horizontal brushing technique
Location of the abrasion lesions depends on tooth alignment and/or which hand is holding the toothbrush
Tooth Brush Abrasion
Occupational/Oral Habits causing Abrasion
ATTRITION
Causes of Attrition
MILD
MODERATE
SEVERE
Attrition can predispose to or precipitate any of the following 
Clinical Features Of Attrition
EROSION
Causes Of Erosion
Extrinsic factors Intrinsic factors Idiopathic factors
Extrinsic Causes Of Erosion
Wine-tasters
Lemon sucking
Coke swishing
Intrinsic causes of erosion
From within the body Usually hydrochloric acid from the stomach (pH 2) Regurgitation Vomiting
Regurgitation and Vomiting of gastric contents due to
Anorexia nervosa Bulimia Hiatus Hernia Pregnancy/Hormones
Idiopathic causes of erosion
Unknown cause Patient will not admit to or be aware of intrinsic or extrinsic causes
Clinical Features Of Erosion
ABFRACTION
Clinical Features Of Abfraction
Abfraction
Treatment of Tooth Tissue Loss
THE END
OCCLUSAL PARAFUNCTIONAL HABIT May be Sleep bruxism or Awake bruxism
An idiopathy is any disease with unknown pathogenesis or apparently spontaneous origin