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Patient: 64 yr old Hispanic Male

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. ABFRACTION.

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Patient: 64 yr old Hispanic Male

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  1. 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.

  2. 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

  3. 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

  4. How to Evaluate: • Check for signs of TMD • Check maximum opening • Check for corrosive factors • Acidic diet • Acid reflux • Evaluate for toothbrush abrasion. Deep abfraction with dentin exposure.

  5. 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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