Microcirculation of the marginal periodontium in the manufacture of artificial crowns with different levels of location of the boundaries of the preparation
https://doi.org/10.33925/1683-3759-2020-25-1-54-58
Abstract
Relevance. Margin line of preparated tooth may be located on different height above gingival level, during prothetic treatment. Preparation below gingival level is always traumatic that effects on microcirculation of gingiva.
Purpose. To estimate the time of normalization of periodontal microcirculation with different location margin line above gingival level.
Materials and methods. We selected 3 groups of 30 patients who had their teeth prepared for full artificial crowns with making circular 135 degrees’ chamfer: on the level gingival margin, below the level of the gingival margin, and with surgical correction of the gingival margin. The microcirculation of the marginal periodontium was estimated by using laser Doppler flowmetry before preparation and at various times after.
Results. In group 1 and 2 the normalization of hemodynamic parameters occurred in 21 days after preparation, and in group 3 – after 6 months.
Conclusion. Taking into account the results we can suggest the optimal time for getting working impressions: when preparing teeth without surgical correction of the gingival margin – in 21 days, and with gingivectomy – after 6 months.
About the Authors
K. A. KhudaleevaRussian Federation
Khudaleeva Kristina A. - postgraduate student of department of prosthodontic dentistry with a course of orthodontics
Smolensk
N. N. Abolmasov
Russian Federation
Abolmasov Nikolay N. - DSc, Professor, head of the Department of prosthodontic dentistry with the course of orthodontics
Smolensk
M. S. Serdyukov
Russian Federation
Serdyukov Mikhail S. - PhD, Assistant of the Department of prosthodontic dentistry with the course of orthodontics
Smolensk
I. G. Massarsky
Russian Federation
Massarsky Ivan G. - PhD, Associate Professor of the Department of prosthodontic dentistry with the course of orthodontics
Smolensk
I. N. Abolmasov
Russian Federation
Abolmasov Igor N. - 3rd year student of the dental facult
Smolensk
I. A. Kovaleva
Russian Federation
Kovaleva Irina A. - PhD, Assistant Professor of the Department of orthopaedic dentistry with the course of orthodontics
Smolensk
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Review
For citations:
Khudaleeva KA, Abolmasov NN, Serdyukov MS, Massarsky IG, Abolmasov IN, Kovaleva IA. Microcirculation of the marginal periodontium in the manufacture of artificial crowns with different levels of location of the boundaries of the preparation. Parodontologiya. 2020;25(1):54-58. (In Russ.) https://doi.org/10.33925/1683-3759-2020-25-1-54-58