Chapter 16 Local Factors Contributing to Periodontal Disease

Why is calculus considered a local risk factor? - The surface of calculus is irregular and provides a place for bacteria to grow undisturbed. Which of the following is NOT a mechanism for attachment of calculus to a tooth surface? a. Attachment by means of pellicle b. Attachment to the blood clots that can form on the tooth. c. Attachment to irregularities that occur in the surface of a tooth. d. Attachment by direct contact of the calcified component and the tooth surface. - Attachment to the blood clots that can form on the tooth. The term overhanging restorations refers to restorations (or fillings) that... - are not smoothly contoured with the tooth surface. Pathogenicity of plaque refers to...? - Disease causing potential of the plaque. Parafunctional occlusal forces are forces placed on the teeth that... - result from tooth to tooth contact other than during chewing food. Which of the following can result in direct damage to the periodontium? a. Failure to remove plaque from the surfaces of teeth. b. A dental prosthesis that impinges on the gingiva c. Way too many soft foods in the diet