Novak N.V.1, Baitus N.A.2
Correction of optic properties of devitalized teeth
1Belarusian Medical Academy of Post-Graduate Education, Minsk, Republic of Belarus
2Vitebsk State Order of Peoples’ Friendship Medical University, Vitebsk, Republic of Belarus
Vestnik VGMU. 2019;18(1):65-71.
Professional whitening of devitalized teeth is considered as one of the treatment methods for persistent discoloritis. When assessing the type of discoloritis and its severity, one should have an idea about the color of teeth in normal conditions and under the influence of a number of exogenous and endogenous factors, since finding out the nature of tooth color and the cause of its occurrence is important for choosing the method of subsequent treatment.
Objectives. To evaluate the effectiveness of intracrown whitening and restoration of the fluorescent properties of devitalized teeth, depending on the type of the sealer used for endodontic treatment, the cause of depulpation and its remoteness.
Material and methods. To study the effectiveness of intracoronal whitening of devitalized teeth, 194 teeth were whitened in 190 patients who applied to the VSMU Clinic and the Chair of Restorative Dentistry with the course of the Faculty for Advanced Traning & Retraining of VSMU in the period 2014-2019 with complaints of a change in the color of teeth after endodontic treatment.
Results. The analysis of the data obtained shows that the whitening effect with the restoration of color and fluorescent properties to the original characteristics of the vital tooth was achieved in 72 teeth out of 194 (37,11%). In 122 teeth (62,89%) the necessary whitening and fluorescence recovery did not occur. Of these, 68 teeth (35,05%) were partially whitened, 54 teeth (27,84%) were not whitened.
Conclusions. The data obtained indicate that on intracrown whitening of previously endodontically treated teeth with changed color, in order to achieve a good whitening result, it is necessary to take into account the type of root sealer with which the root canal is obturated and the remoteness of tooth depulpation.
Key words: whitening, color, fluorescence, optical properties, devitalized tooth.
1. Petrikas AZh, Zakharova EL, Ol'khovskaya EB, Chestnykh EV. Prevalence of dental caries complications. Stomatologiia. 2014;93(1):19-20. (In Russ.)
2. Baytus NA. Prevalence of endodontic treatment of anterior teeth. Stomatolog. 2015;(3):55-60. (In Russ.)
3. Novak NV, Baytus NA. Frequency of occurrence of shades of depulped teeth with application of additional standards to the VITA scale. Vestn VGMU. 2017;16(6):92-8. (In Russ.)
4. Novak NV, Baytus NA. Effect of whitening on the optical properties of the depulped tooth. V: BGMU v avangarde meditsinskoi nauki i praktiki: sb rets nauch rabot. Minsk, RB; 2017. Vyp 7. Р. 16-20. (In Russ.)
5. Ajwani P, Saini N, Bansal Р. Smile Enhancement with Professional Tooth Whitening System. Heal Talk. 2010 Nov-Dec;3(2):45-6.
6. Mirnaya EA. Whitening as a non-invasive way to improve the aesthetics of teeth with discoloration. Sovremen Stomatologiia. 2017;(3):50-6. (In Russ.)
7. Kwon SR. Tooth whitening: how does it work. In: Perdigão J, ed. Tooth Whitening: An Evidence-Based Perspective. Switzerland: Springer International Publishing; 2016. P. 21-33.
8. Artemova AV, Polosukhina EN. Experience of treatment of persistent dyscolorites of depulped teeth on the basis of the Department of Dentistry of therapeutic SSMU named after VI Razumovsky. Biul Med Internet-konf. 2015;5(10):1203. (In Russ.)
9. Chernyavskiy YuP, Kavetskiy VP. Modern approaches to the elimination of small defects of the dental row. Vestn VGMU. 2011;10(1):145-8. (In Russ.)
10. Baytus NA. Colour-neutralizing technique for the treatment of devital teeth. Vestn VGMU. 2014;13(5):124-9. (In Russ.)
11. Chernyavskiy YuP, Kavetskiy VP. Clinical features of the use of supporting teeth in the manufacture of adhesive structures. Vestn VGMU. 2015;14(1):116-20. (In Russ.)
12. Agresti A, Coull BA. Approximate is better than «exact» for interval estimation of binomial proportions. American Statistician. 1998 May;52(2):119-26.
Information about authors:
Novak N.V. – Doctor of Medical Sciences, associate professor of the Chair of Restorative Dentistry, Belarusian Medical Academy of Post-Graduate Education;
Baitus N.A. – lecturer of the Chair of Restorative Dentistry with the course of the Faculty for Advanced Training & Retraining, Vitebsk State Order of Peoples’ Friendship Medical University,