STUDY OF THE EFFECTIVENESS OF THE USE OF DIRECT AND INDIRECT RESTORATION OVER TIME IN THE TREATMENT OF DEFECTS OF HARD DENTAL TISSUES AFTER ENDODONTIC INTERVENTION
Authors: Fedoriuk V. V. , Rozhko М. М. 
Published: January 2025

To determine the dynamics of changes in the defects of the hard tissues of the teeth after endodontic intervention in patients treated by direct and indirect restoration with preserved and non-preserved ferrule of the tooth.
Clinical examination was carried out in 110 patients with hard tissue defects after endodontic intervention.
We examined 110 patients (n=110), where direct restoration was carried out (n=48 (43.64%)) persons and indirect restoration (n=62 (56.36%*)) persons.
The preservation of the tooth ferrule after endodontic intervention was also studied, which was preserved in (n=53 (48.18%)) and absent in (n=57 (51.82%)) patients. When the ferrule of the tooth is preserved. Teeth affected by the carious process (n=24 50.00%)), demineralized (n=10 20.83%)), dense (n=14 29.17%)). The root canals of the tooth were sealed with: resins (n=33 68.75%)), resorcinol-formalin paste (n=14 29.17%)), zinc-eugenol paste (n=1 2.08%)). Presence of periodontal destruction of the tooth: periodontal margin destroyed at the level of epithelial attachment (n=23 47.92%)), periodontal margin 3mm above the level of epithelial attachment (n=3 6.25%)), periodontal margin 2mm above the level of epithelial attachment (n=16 33.33%)), periorbital edge 1 mm above the level of epithelial attachment (n=6 12.50%)). In the absence of a tooth ferrule. Teeth affected by the carious process (n=46 74.19%*), demineralized (n=4 6.45%*), dense (n=12 19.35%)). Root canals of the tooth were sealed with: resins (n=28 45.16%*), resorcinol-formalin paste (n=28 45.16%*), zinc-eugenol paste (n=6 9.68%*)). Presence of periodontal destruction of the tooth: periodontal margin destroyed at the level of epithelial attachment (n=29 46.77%)), periodontal margin 3 mm above the level of epithelial attachment (n=5 8.06%)), periodontal margin 2 mm above the level of epithelial attachment (n=12 19.35%*), periorbital edge 1 mm above the level of epithelial attachment (n=16 25.81%)). Note: * means a reliable difference between the proportions of the trait in the samples. (p*<0.05).
Research rationale. The purpose of this study is to study the complications from the choice of modern treatment methods and the effect of the ferrule during the treatment of defects of hard dental tissues after endodontic intervention in Ukraine.
Materials and methods. We examined 110 patients with defects in the hard tissues of the teeth after endodontic treatment, who had complaints of difficulty chewing food, aesthetic defects.
Results, Discussion. The analysis of the survey map revealed a number of the most frequent treatment methods and the state of hard tissues after endodontic treatment. 2 clinical groups were formed (group I; II;) depending on the choice of treatment method (direct and indirect restoration).
The results of the examination showed a high level of damage to the hard tissues of the teeth by the carious process, as well as significant periodontal destruction of the hard tissues.
Conclusions. The results of the analysis of patient examination charts showed that the condition of the hard tissues of the teeth before preparation in most patients was affected by the carious process, which negatively affects the possibility of preparing the tooth with the creation of a ferrule, which contributes to better mechanical integrity of the restoration. This can be related to the fact that patients have low awareness of individual care and oral hygiene.