The chemical composition of the dentin of teeth affected by precervical caries, depending on the depth of enamel microcracks

  • S. P. Yarova Donetsk National Medical University, Lyman
  • I. I. Zabolotna Donetsk National Medical University, Lyman
Keywords: microcracks, precervical caries, dentine, chemical composition

Abstract

Precervical lesions:  wedge-shaped defect, precervical caries and cracks are often diagnosed in clinical practice. Form of cervical caries occurs in 20–30 % of cases. Resistance to decay related to the structure and properties of dental tissues. It remains relevant to identify new etiopathogenetic factors of their development, which has both scientific and practical value.

The aim of the study – to research the chemical composition of dentin in teeth affected by a precervical caries depending on the depth of the enamel microcracks.

Materials and Methods. Subject of research – 10 teeth of the both jaws extracted as clinically indicated, longitudinal sections of teeth of patients from 25 to 54 years old. JSM-6490 LV focused beam electronic microscope (scanning) with system of energy-dispersive x-ray microanalysis INCA Penta FETх3 was used.

Results and Discussion. In the chemical composition of the dentin of the teeth affected by precervical caries, the method of micro X-ray spectral analysis was used to determine the difference in zinc content depending on the depth of the enamel defects (p <0.05). The research was carried out in the clinically unchanged areas of the samples (cutting edge (tuber), equator) and in the zone of caries defect (occlusive, near-the-gum of the wall, middle part, 150 microns from it). The amount of zinc was the biggest in the areas of the cutting edge (tubercule and equator of teeth with microcracks) of type І, the epidermal wall of the precervical caries of teeth with microcracks of type ІІ, the gum wall and the middle part of the caries process, and also at the distance between that part and the teeth with microcracks of type ІІІ, р<0.05. Aluminum was reliably found in large quantities of the dentine of specimens with type I of enamel defects in all the areas of the caries defect, where the correlation aluminum / zinc was significantly greater than in specimens with less deep microcracks, p <0, 05.

Conclusions. Increasing of essential components and reduction of toxic components of microelement structure of dentin play a significant role in the development and progression of pathology of hard dental tissues. Their adequate correction should become one of the conceptual directions of modern preventive medicine. The revealed features should be used for a substantiation of principles of treatment and prophylaxis of teeth with precervical caries.

References

Mount, G.J. (2005). Minimalnaya interventsiya v stomatologii. Karioznye porazheniya lokalizatsii 3 tipa [Minimal intervention in dentistry. Carious lesions localization of type III]. Novoye v stomatologii – New in Dentistry, 7, 14-21 [in Russian].

Lutskaya, I.К., & Nichiporovich, G.S. (2006). Chastota treshchin emali i dentina v postoyannykh zubakh [The frequency of fissures in the enamel and dentin of permanent teeth]. Stomatologicheskiy zhurnal – Dental Journal, 2, 87-91 [in Russian].

Vlasova, M.I. (2012). Obosnovanie vybora plombirovochnykh materialov i adgezivnykh sistem pri lechenii prisheyechnogo kariyesa zubov (kliniko-instrumentalnoe issledovanie) [Justification of the choice of filling materials and adhesive systems in the treatment of cervical caries (clinical and instrumental research]. Candidate’s Extended abstract. Ekaterinburg: UGMU [in Russian].

Brailko, N.N., & Tkachenko, I.M. (2016). Vyznachennia roli mekhanichnoho faktora v etiolohii klynopodibnykh defektiv [Evaluating the role of mechanical factor in etiology of wedge-shaped dental defects]. Aktualni problemy suchasnoi medytsyny: visnyk Ukrainskoi medychnoi stomatolohichnoi akademii – Actual Problems of the Modern Medicine, 16, 2 (54), 11-13 [in Ukrainian].

Riabokon, E.N., Andreeva, E.V. & Kruchko, A.I. (2014). Rasprostranennost razlichnykh vidov treshchin tverdykh tkaney zubov u lits molodogo vozrasta [The prevalence of various types of cracks in hard tooth tissue in young people]. Trudy VII Mezhdunarodnoy nauchno-prakticheskoy konferentsii “Stomatologiya slavyanskikh gosudarstv” – Proceedings of the 7th International Scientific and Practical Conference “Dentistry of Slavic states”. Belgorod: BelGU (pp. 342-343) [in Russian].

Kiselnikova, L.P., Kobzeva, M.A. & Tkachuk, M.I. Puti povysheniya effektivnosti lecheniya klinovidnykh defektov zubov [Ways to improve the treatment of wedge-shaped defects of teeth]. Retrieved from: http: //www.emedi.ru/ [in Russian].

Ippolitov, Yu.A. (2010). Funktsionalnaya morfologiya emali chelovecheskogo zuba [Human tooth enamel functional morphology]. Vestnik novykh meditsinskikh tekhnologii – Journal of New Medical Technologies, ХVII (2), 56-58 [in Russian].

Yarova, S.P., Zabolotna, I.I., & Genzytskaya, E.S. (2015). Khimicheskiy sostav emali zubov s prisheyechnym kariesom [The chemical composition of enamel of teeth with precervical caries]. Ukrainskyi stomatolohichnyi almanakh – Ukrainian Stomatological Almanac, 2, 5-11 [in Ukrainian].

Korshunov, A.P., Suntsov, V.G., & Pitaeva, A.N. (2000). Fiziko-khimicheskie aspekty transporta ionov cherez emal zuda [Physicochemical aspects of ion transport through dental enamel]. Stomatologiya – Stomatology, 79, (4), 6-8 [in Russian].

Samsuyev, R.P., Dmitriyenko, S.V., & Kraushkin, A.I. (2002). Osnovy klinicheskoy morfologii zubov [Basics of clinical dental morphology]. Moscow, Russia: ООО “Izdatelskii dom “ОNIКS 21 vek”: ООО “Mir i оbrazovanie” [in Russian].

Surmenko, E.L., Tuchin, V.V., & Sokolova, T.N. (2007). Issledovaniye elementnogo sostava emali zuba metodom LIBS [LIBS investigation of an elemental composition of dental enamel]. Lazernaya meditsina – Lazer Medicine, 11, 2, 44-48 [in Russian].

Duriahina, L.Kh., & Kosenko, K.M. (2013). Vyvchennia vplyvu kompleksnoi terapii na pokaznyky faktoriv zakhystu, poshkodzhennia i agresii ta kharakteru vyrazhenosti bilkovoi minlyvosti rotovoi ridyny [The study of influence of complex therapy is on indexes of factors of defence, damage and aggression and the character of expressed albuminous changeability in the mouth liquid] Visnyk stomatolohii – Herald of Stomatology, 2, 26–29 [in Ukrainian].

Kozhin, A.A., & Vladimirskiy, B.M. (2013). Мikroelementozy v patologii cheloveka ekologicheskoi etiologii [Microelementoses in human pathology of ecological etiology]. Ekologiya cheloveka – Human Ecology, 9, 56-64 [in Russian].

Shamas, A.M., Ochirova, N.O., & Voyeykova, O.V. (2014). Rol mаkrо- i mikroelementov v razvitii zubov i sposoby korrektsii ikh balansa [Macro and micro elements importance in teeth development and ways of their balance correction]. Zdorovye i obrazovanie v ХХІ vеkе – Health and Education in the 21st century, 16, 4, 137-139 [in Russian].

Published
2019-05-22
How to Cite
Yarova, S. P., & Zabolotna, I. I. (2019). The chemical composition of the dentin of teeth affected by precervical caries, depending on the depth of enamel microcracks. Clinical Dentistry, (1), 4-9. https://doi.org/10.11603/2311-9624.2019.1.10141
Section
Terapeutic stomatology