USE OF GLASS-IONOMER CEMENT OF DOMESTIC PRODUCTION IN CLINIC OF THERAPEUTIC DENTISTRY

Lobach L. N., Petrushаnko V. N., Pavlenkova E. V., Tkachenko I. M.

DENTISTRY

Scentific article

The task of the research of GIC «Ionolat» was to determine the quality of delivered seals immediately after restoration and 12 months after treatment according to the criteria of USPHS, according to which anatomical form, border adaptation, surface roughness, edge coloring, secondary caries, presence of sensitivity after filling, and also the state of a contact point are evaluated. GIC «Ionolat» refers to the second type of self-reinforcing material. Apply «Ionolat» to seal defects of teeth of non-carious origin (enamel erosion, wedge-shaped defects), to fill the cavities of all classes by Blacks in the milk teeth, to restore the damaged crown of the tooth with the creation of crown crowns. A special indication for the use of glass- ionomer cement is the filling of the defects of the root of the tooth. The use of «Ionolat» provides high-quality sealing and in those cases where difficulties arise in restoring defects of solid dental tissues when using composites. The use of GIC is also possible with the application of sandwich technique for filling large carious cavities of classes 1 and 2 by Black («open» and «closed» sandwich), as well as in restoring defects in depilated teeth. But at work it is necessary to take into account the shortcomings of «Ionolat», namely: a) sensitivity to the presence of moisture in the process of solidification; b) the inadmissibility of overdrying the surface of the hardening cement, which leads to deterioration of the properties of the material and can cause the postoperative sensitivity of the tooth; c) the duration of «maturation» of the seal from the GIC (24 hours); г) danger of irritating action on a pulp in deep cavities due to adsorption of a liquid from dentinal tubules. The status of seal was assessed as excellent, satisfactory or unsatisfactory. Excellent (A) – seals meet all criteria. Satisfactory (B) – the seals do not fit perfectly and may require replacement later. Unsuccessful (C) – seals with defect presence. Immediately after filling, according to assessment criteria (anatomical form, edge adaptation, edge coloring, sensitivity, contact point, the presence of secondary caries), all seals did not correspond to the indicator «A» in 100% of observations. After 12 months of clinical operation, 41 seals were examined in 32 patients. In all the sealed teeth, along with the seals, there were no signs of the presence of secondary caries. The thick contact point was preserved in 70% of seals, and in 17% it was not very tight, in 10% of the observations the seals corresponded to the indicator «C». 76% of the seals retained the anatomical form («A»), 28% of the seals had a «B» score due to the slight loss of sealing material, and 18% of the observations required a processing («C») due to a significant loss of seal material. According to the criterion of «regional adaptation», 68% of seals corresponded to the indicator «A», «B» – 26%, «C» – 17%. The color difference between the seal and hard tissues in the direction of the pulp was detected in 14% of seals («C»). Absence of color change was observed in 81% of seals and 19% of seals corresponded to criterion «B».

marginal permeability, hard tooth tissues, GIC «Ionolat»

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«Bulletin of problems biology and medicine» Issue 4 part 1 (146), 2018 year, 284-287 pages, index UDK 616.31-085-74:615.463

10.29254/2077-4214-2018-4-1-146-284-287