Loss of alveolar bone due to periodontal disease exhibits a threshold on the association with coronary heart disease.
Alman AC, Johnson LR, Calverley DC, Grunwald GK, Lezotte DC, Harwood JE, Hokanson JE. Loss of alveolar bone due to periodontal disease exhibits a threshold on the association with coronary heart disease. J Periodontol. 2011 Sep; 82(9):1304-13.