Classification.

Date: 2015-10-07; view: 449.

I. By localization: fissure, aproximal, precervical, combined localization (labial, lingual, buccal surfaces).

II. By the depth of affection: initial, superficial, moderate, deep.

III. By the clinical development character: acute, chronic.

IV. By the consequence of development: primary, secondary or recurrent.

Caries of temporary teeth on the stage of root maturation:acute development is predominating,itis localizedmainly in the precervical area of the upper incisors and fissures of the first and second temporary molars, it spreads over all the surface and covers resistant to caries tooth surfaces ( vestibular in the incisors, humps in the molars. We may note quick destruction of dentine of the temporary tooth resulting from its weak mineralization and absence of protective reactions from the morphologically and functionally immature pulp. A characteristic peculiarity of early caries is the multiplicity of affection of the temporary teeth and symmetrical localization of the carious defects.

Caries of the temporary teeth on the stage of mature root.

Acute initial caries– is a quickly progressing stage of caries of the temporary teeth, which is diagnosed very rarely. The superficial caries may more often have acute development and it is a consequence of acute initial caries. The enamel caries is usually accompanied with the development of a carious defect till the region of the enamel-dentine junction. As a rule complaints are absent. Probing determines rough, softened surface. The chronic development of a superficial caries of the temporary teeth on the stage of mature root rarely occurs.

Moderate caries. It is one of the most common clinical forms of caries on the stage of mature root. There are complaints about: food sticking between the teeth, sensitivity for the chemical and thermal stimulants. Sometimes the complaints may be absent. Objectively: carious cavity with a narrow entrance orifice, the affected enamel margins have dull-white color. The dentine is white-yellow or yellow, it is demarcated in layers with excavator. Caries may involve all the approximal surface superficially. Chronic moderate caries is localized predominantly on the approximal surfaces, rarer- on the chewing and precervical surfaces. Clinical development of this form of caries in the temporary teeth asymptomatic. There may be complaints about the presence of a carious cavity or food retention between the teeth. The carious cavity may have wide orifice, its floor and walls are covered with a dense pigmented dentine. The probing of the walls and floor is painless.

Deep caries on the stage of a mature root often develops acutely. There may be complaints about pain caused with the mechanical or thermal stimulants. Objectively: carious cavity is localized within the peripulpal dentine. In case of active caries development in the temporary teeth, the reparative dentine isn't produced from the pulp side, its protective sclerozing in the very dentine isn't expressed well enough. This is why the diagnosis of acute deep caries of the temporary teeth must be established just after performing the detailed differential diagnostics with the complications. The chronic development of a deep caries in the temporary teeth in children on the mature root stage doesn't occur often. It may be diagnosed in somatically healthy children with mild intensity of caries. The chronic caries is characterized by slow progression, formation of a solid, sclerozing dentine, which results from activation of the protective function of the morphologically immature pulp.

The caries of temporary teeth on the resorption stagedoesn't occur often; predominantly we diagnose complications of caries as chronic forms of pulpitis and periodontitis. In somatically healthy children the carious process in the temporary teeth may have typical chronic development. According to the depth of affection the predominating forms are moderate and deep caries. According to the localization the approximal caries prevails. Acute development of caries of the temporary teeth on the root resorption stage is rarely diagnosed, and as a rule, in children with general somatic diseases and decreased immunity. So, the development of caries of the temporary teeth has some peculiarities which are determined by the development stages.