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Известия на Съюза на учените – Варна. Серия „Медицина и екология”

Investigation of the interrelation between plaque level and tooth decay in children with nephrotic syndrome in the period of mixed dentition

Sirma Todorova Angelova


The early onset of carious destruction of hard teeth tissues definitely increases the risk of caries at older age. The insufficient level of oral hygiene around a tooth affected by caries induces the corresponding effect of gingival inflammation. Primary teeth affected by caries carry the potential risk of developmental and structural disturbances of their permanent successors.

The aim of this study is characterization of the interrelation between dental plaque levels and tooth decay in children with nephrotic syndrome in the period of mixed dentition.

In the investigation are included children with diagnosed nephrotic syndrome and a control group of healthy participants. Implemented clinical methods, epidemiological research and graphics design have been used. In 16.85% of the children with mixed dentition and diagnosed renal disorders the epidemiological index of dft varies in the range between 86% to 100%, at the expense of afflicted by caries and complicated carious lesions primary teeth, as well as, already treated deciduous teeth. Among children suffering from nephrotic syndrome from 6 to 12 years old established a minimum value of PLI=1.32 and maximum level of PLI= 2.68 are established. We have registered a minimum level of the gingival index GI equal to 0.91 and a maximum value of GI=2.05. Concerning children without common health disorders a minimum rate of PLI=0.14 and maximum level of PLI=2.14 are registered. These participants are characterized with fluctuations of the index of GI in the range between 0.00 and 1.68. Optimization of oral hygiene procedures in domestic conditions is related to intensive, thorough and profound training of parents and children by dental medicine doctors. There is a great necessity of performance of motivation programs in the context of oral health promotion.


tooth decay, dental plaque, nephrotic syndrome, child’s age;

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