A dent is an abnormal meeting of a cavity in another during a pathological evolutionary process. One distinguishes it from the malpositions of bodies, or anatomical malformations.

It can be the consequence of a disease, of a complication of an intervention (digestive dents, vesical dents…) .

In agronomic research, it is an opening practiced on an live animal to carry out taking away there.

Use in the agronomic research

The dents are artificial openings stopped by a plastic stopper on digestive pockets of an live animal. Concretely, the plastic stopper installed on the animal makes it possible to have access to food introduced by the animal to study their digestion there.

Type of dent

Uro-digestive dent

Between the sigmoid colonist and the bladder or between the sigmoid colonist and the vagina or between the bladder and the vagina, connecting the contents of different bodies. Symptomatology being appearance of digestive or urinary contents in another body.

Anal dent

The anal dent is the appearance of a conduit between the anal channel and the skin, being able to cross the anal sphincter. This affection is generally due to a local infection on the level of glands of Hermann and Desfosses, located at the level of the anal channel, at the origin of an abscess whose contents gradually will be expressed. The patient complains about purulent flows which one sees leaving the conduit at the time of the pressure. The treatment is surgical, consistent in the resection of the pathological conduit.

Arteriovenous dent

The arteriovenous dent is voluntarily manufactured by the chirugien which brings together a Veine arm in an artery, which causes to increase the flow on this level (falls of resistances by shunt of the capillary distal network) and to obtain an important venous dilation to allow the specific installation of circuits of extracorporal Circulation for a treatment by Hémodialyse. The dent has the advantage on the catheter (posed obligatorily on a large central vein) of allowing the cicatrization between the meetings - and consequently less entry of germs.

Certain dents arteriovenous are spontaneous, being able to involve circulatory troubles, even a cardiac failure with high banc.

Pancreatic dent

Labyrinthian dent

• chronic Cholestéatome and labyrintite

Complication of the chronic otitis with cholestéatome. The épidermique tumor gradually eroded the semicircular channel, from which the osseous elements disappeared. Symptoms: giddinesses. A labyrinthian dent requires an emergency surgical operation, to avoid an infection of the labyrinth.

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