Влияние угла конвергенции вертикальных стенок культей зубов на расцементировку металлокерамических коронок
Научно-практический журнал Институт Стоматологии №3 (108), сентябрь 2025
стр. 46-47
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Аннотация
Расцементировка искусственных металлокерамических коронок (МКК) остается распространенным осложнением в ортопедической стоматологии, приводящим к дискомфорту пациента, риску аспирации, развитию вторичного кариеса и дополнительным финансовым затратам. Лабораторные и теоретические работы однозначно указывают на угол конвергенции стенок препарированного зуба как на ключевой фактор механической ретенции коронки. Однако данные прямых сравнительных клинических исследований ограничены. Данная работа представляет результаты исследования, оценивающего влияние угла конвергенции на частоту расцементировки МКК.
Аннотация (англ)
Cementation failure of artificial metal-ceramic crowns (MCC) remains a common complication in orthopedic dentistry, leading to patient discomfort, risk of aspiration, development of secondary caries and additional financial costs. Laboratory and theoretical studies clearly indicate the angle of convergence of the walls of the prepared tooth as a key factor in the mechanical retention of the crown. However, data from direct comparative clinical studies are limited. This paper presents the results of a study assessing the effect of the convergence angle on the frequency of CMC cementation failure.
Ключевые Слова
одонтопрепарирование, металлокерамическая коронка, конвергенция.
Ключевые Слова (англ)
odontopreparation, metal-ceramic crown, convergence.
Список литературы
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14. Baldissara P., Monaco C., Llukacej A., Ciocca L. Stress distribution in resin cements under simulated crown dislodgment: Effect of preparation taper and cement modulus - A 3D-FEA study // Journal of the Mechanical Behavior of Biomedical Materials. - 2022. - Vol. 126. - Art. № 104996. DOI: 10.1016/j.jmbbm.2021.104996.
15. Alghazzawi T.F., Lemons J.E., Liu P.-R., Essig M.E., Janowski G.M. The critical impact of axial wall symmetry on stress distribution and retention in CAD/CAM molar crowns: A 3D-FEA and in-vitro analysis // Journal of Prosthodontic Research. - 2024. - Vol. 68, № 1. - P. 45-53. DOI: 10.2186/jpr.JPR_D_23_00005.
16. Elsayed A., Chaar M. S., Kern M. The interplay of abutment height and preparation taper on the retention of cement-retained implant-supported crowns: An in-vitro investigation // Clinical Oral Implants Research. - 2023. - Vol. 34, № 3. - P. 267-276. DOI: 10.1111/clr.14034.
2. Kim J.-H., Park J.-M., Shim J.-S. A 10-year retrospective analysis on survival and complications of metal-ceramic single crowns: focus on preparation features // Journal of Prosthodontics. 2023. - Vol. 32, № S1. - P. 15-22. DOI: 10.1111/jopr.13622.
3. Tolidis K., Papadogiannis D., Gerasimou P., Lakes R.S. Retention efficacy of contemporary adhesive cements in prosthodontic retentive scenarios: A systematic review and meta-analysis // Dental Materials. - 2023. - Vol. 39, № 2. - P. 123-135. DOI: 10.1016/j.dental.2022.12.001.
4. Shillingburg H.T., Sather D.A., Wilson E.L., Cain J.R., Mitchell D.L., Blanco L.J., Kessler J.C. Fundamentals of Fixed Prosthodontics. 5th ed. Batavia: Quintessence Publishing, 2023. Chapter 9: Principles of Tooth Preparation. - P. 173-215.
5. Alghazzawi T.F., Lemons J.E., Liu P.-R., Essig M.E., Janowski G.M. The critical impact of axial wall symmetry on stress distribution and retention in CAD/CAM molar crowns: A 3D-FEA and in-vitro analysis // Journal of Prosthodontic Research. - 2024. - Vol. 68, № 1. - P. 45-53. DOI: 10.2186/jpr.JPR_D_23_00005.
6. Jorgensen K.D. The relationship between retention and convergence angle in cemented veneer crowns // Acta Odontologica Scandinavica. - 1955. - Vol. 13, № 1. - P. 35-40. DOI: 10.3109/00016355509026014.
7. Kaufman E. G., Coelho D. H., Colin L. Factors influencing the retention of cemented gold castings // The Journal of Prosthetic Dentistry. - 1961. - Vol. 11, № 3. - P. 487-502. DOI: 10.1016/0022-3913(61)90184-8.
8. Alnasser M., Finkelman M., Zandparsa R. The effect of axial wall taper on the retention and marginal adaptation of zirconia crowns: A systematic review and meta-analysis // The Journal of Prosthetic Dentistry. - 2022. - Vol. 128, № 4. - P. 601-609. DOI: 10.1016/j.prosdent.2021.04.032.
9. Shahin T., Kern M., Chaar M.S. Influence of preparation taper and luting agent type on the retention strength of monolithic CAD/CAM cobalt-chromium crowns: An in-vitro study // The Journal of Advanced Prosthodontics. - 2022. - Vol. 14, № 3. - P. 143-154. DOI: 10.4047/jap.2022.14.3.143.
10. Zhang Y., Sun Y., Wang C., Ding Q. Biomechanical impact of excessive taper and reduced occlusogingival dimension on the retention of single crowns: A nonlinear finite element analysis // Computer Methods in Biomechanics and Biomedical Engineering. - 2022. - Vol. 25, № 14. - P. 1589-1600. DOI: 10.1080/10255842.2022.2032682.
11. Mansour A., Wakabayashi N., Feilzer A. J., Taha N. Biomechanics of cement failure in tapered prosthetic preparations: A critical review // Dental Materials Journal. - 2023. - Vol. 42, № 1. - P. 1-10. DOI: 10.4012/dmj.2022-129.
12. Baldissara P., Monaco C., Llukacej A., Ciocca L. Stress distribution in resin cements under simulated crown dislodgment: Effect of preparation taper and cement modulus - A 3D-FEA study // Journal of the Mechanical Behavior of Biomedical Materials. - 2022. - Vol. 126. - Art. № 104996. DOI: 10.1016/j.jmbbm.2021.104996.
13. Mansour A., Wakabayashi N., Feilzer A. J., Taha N. Biomechanics of cement failure in tapered prosthetic preparations: A critical review // Dental Materials Journal. - 2023. - Vol. 42, № 1. - P. 1-10. DOI: 10.4012/dmj.2022-129.
14. Baldissara P., Monaco C., Llukacej A., Ciocca L. Stress distribution in resin cements under simulated crown dislodgment: Effect of preparation taper and cement modulus - A 3D-FEA study // Journal of the Mechanical Behavior of Biomedical Materials. - 2022. - Vol. 126. - Art. № 104996. DOI: 10.1016/j.jmbbm.2021.104996.
15. Alghazzawi T.F., Lemons J.E., Liu P.-R., Essig M.E., Janowski G.M. The critical impact of axial wall symmetry on stress distribution and retention in CAD/CAM molar crowns: A 3D-FEA and in-vitro analysis // Journal of Prosthodontic Research. - 2024. - Vol. 68, № 1. - P. 45-53. DOI: 10.2186/jpr.JPR_D_23_00005.
16. Elsayed A., Chaar M. S., Kern M. The interplay of abutment height and preparation taper on the retention of cement-retained implant-supported crowns: An in-vitro investigation // Clinical Oral Implants Research. - 2023. - Vol. 34, № 3. - P. 267-276. DOI: 10.1111/clr.14034.
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