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. 2015 Jan;94(1):85–92. doi: 10.1177/0022034514553626

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© International & American Associations for Dental Research 2014

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Figure 5. — Correlations between frictional coefficient and mechanical properties. (A–D) Correlations between mechanical properties (aggregate modulus and permeability) and coefficient of friction for both disc (A, B) and condyle (C, D) were analyzed by linear regression, with the anterior-posterior (AP) coefficient of friction reported. No statistically significant relationship was observed. Similar results (not shown) were obtained for COF in the lateral-medial direction. (E, F) Correlation between Péclet number and coefficient of friction, measured in the AP direction. A strong exponential relationship between Péclet number and friction coefficient (R² = 0.22) can be seen for condylar cartilage. (G) Biomechanical factors necessary to maintain functional lubrication in the TMJ disc and condylar cartilage.