Focal Infection Ppt 4r174i

Focal infection

Definisi focal infection Focal infection it is localized or general infection caused by the dissemination of microorganism or toxin products from focus infection. Focus infection is this refers to a circumscribed area of tissue, which is infected with exogenous pathogenic mcroorganims and is usually located near a mucous or cutaneous surface.

Mechanism of focal infection The mechanisms of spread are direct, through the local tissues and along fascial planes, along mucous surfaces, including ducts such as the salivary, and by inhalation and ingestion along respiratory and gastrointestinal mucosal surfaces, respectively, via the bloodstream, the lymphatics, and even, possibly, along nerves.

Identify three pathways • Metastatic infection from the oral cavity due to transient bacteremia, • Metastatic injury due to oral microbial toxins, • Metastatic inflammation due to immunologic injury caused by oral micro-organisms.

Entry of microorganisms into pulp through caries is the most common way of the entry of microorganism into the dental pulp. Through open dentinal tubules, microorganisms can into the dentinal tubules and subsequently to the pulp resulting in its necrosis. Through the periodontal or the gingival sulcus, microorganisms can enter into the pulp via accessory and lateral canals which connect pulp and the periodontium.

Anachoresis refers to attraction of blood borne bacteria in the areas of inflammation. In the words, anachoresis is a process by which microorganisms are transported in the blood to an areaof inflammation where they establish an infection. Through defective restorations, faulty restoration with marginal leakage can resul in contamination of the pulp by bacteria.