Which of the following is a local contributing factor to periodontal disease?

Question

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Periodontal disease has many local and systemic contributing factors. Subgingival margin placement of a crown is a local contributing factor for periodontal disease, because it causes plaque biofilm to become entrapped and retained, leading to more disease. Bleeding on probing is the earliest clinical sign of the presence of inflammation and a predictor of periodontal break, but it is not a local risk factor. Financial stress and past history of periodontitis are possible risk factors but not local contributing risk factors.

Which of the Following Is a Local Contributing Factor to Periodontal