Most periodontal infections begin in the:

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Keratinized and nonkeratinized tissues react differently to pathogenic microbes. The col is where most periodontal infections begin because it is a nonkeratinized area of interdental gingiva and highly susceptible to disease. Junctional epithelium, alveolar mucosa, and attached gingiva are not the most susceptible to periodontal infections. Junctional epithelium is a cufflike band of squamous epithelium that completely encircles the tooth. Alveolar mucous is movable tissue loosely attached to underlying alveolar bone, and attached gingiva is continuous with the free gingiva and covered with stratified squamous epithelium.

Most Periodontal Infections Begin in The