Abstract
Currently, miniscrews installed parallel to the roots are widely used in the practice of orthodontic treatment. When planning the placement of miniimplants, it is necessary to evaluate the anatomical factors that affect the stability of the miniscrew in the bone. For the analysis, we selected the zone of the external oblique line, where the thickness of bone tissue in the area of the first and second molars was estimated in the vertical and horizontal planes. As a result of the study, it was found that the area of the distal surface of the distal root of the second molar had the greatest thickness of bone tissue. An increase in the vestibular-oral thickness was also observed in the distal direction.
Highlights
FSBEI HE «Volgograd State Medical University» of the Ministry of Healthcare of the Russian Federation, Department of orthodontics, Department of orthopedic dentistry with a course of clinical dentistry
Miniscrews installed parallel to the roots are widely used in the practice of orthodontic treatment
When planning the placement of miniimplants, it is necessary to evaluate the anatomical factors that affect the stability of the miniscrew in the bone
Summary
We selected the zone of the external oblique line, where the thickness of bone tissue in the area of the first and second molars was estimated in the vertical and horizontal planes. As a result of the study, it was found that the area of the distal surface of the distal root of the second molar had the greatest thickness of bone tissue. Минивинты являются абсолютной временной скелетной опорой, позволяющей проводить корпусное перемещение зубов в различных плоскостях с предсказуемым результатом, однако при всех положительных эффектах, основной проблемой при использовании миниимплантатов остается их стабильность в костной ткани, а именно место их установки [1, 2, 6]. На нижней челюсти выделяют несколько зон установки минивинтов, одной из таких является зона наружной косой линии. Данная зона представлена в виде направленного косо вверх костного валика, который начинается дистальнее подбородочного отверстия и доходит до переднего края ветви нижней челюсти [3, 5]
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