patient: 64 yr old hispanic male
Post on 01-Jan-2016
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Patient: 64 yr old Hispanic Male Pt presents with
Parkinson’s disease.
Pt reports eating a lot of lemons.
Pt uses a medium bristle toothbrush.
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ABFRACTION Pathologic loss of tooth
structure from biomechanical forces on the tooth (tooth flexion, compression, and tension) along with chemical degradation, most visible as a V-shaped notches in cervical area of tooth. -Darby
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Abnormal tooth Flexure
In vitro studies and Finite Element Analysis (Geramy & Sharafoddin, 2003) demonstrated that tooth flexure disrupts the bonds between enamel rods, causing microfractures and, eventually, loss of tooth substance
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How to Evaluate:
Check for signs of TMD
Check maximum opening
Check for corrosive factors Acidic diet Acid reflux
Evaluate for toothbrush abrasion.
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Deep abfraction with dentin exposure.
Chan, D., Browning, W., Pohjola, R., Hackman, S., Myers, M. (2006) Predictors of non-carious loss of cervical tooth tissues. Operative Dentistry, 31(1), 84-88.
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