Maxillary anterior en masse retraction using different antero-posterior position of mini screw: a 3D finite element study
نویسندگان
چکیده
منابع مشابه
Maxillary anterior en masse retraction using different antero-posterior position of mini screw: a 3D finite element study
BACKGROUND Nowadays, mini screws are used in orthodontic tooth movement to obtain maximum or absolute anchorage. They have gained popularity among orthodontists for en masse retraction of anterior teeth after first premolar extraction in maximum anchorage cases. The purpose of this study was to determine the type of anterior tooth movement during the time when force was applied from different m...
متن کاملEn-masse Retraction of the Maxillary Anterior Teeth by Applying Force from Four Different Levels - A Finite Element Study.
OBJECTIVE To find out if it is possible to control maxillary anterior teeth in sagittal and vertical plane during retraction by altering the vertical levels of force application in the posterior region, i.e. identifying the type of movement of the maxillary anterior teeth which occurs when force would be applied from four different levels i.e. High, Medium, and Low pull Implants and from a conv...
متن کاملMini-implant anchorage for en-masse retraction of maxillary anterior teeth: a clinical cephalometric study.
INTRODUCTION This study was conducted to determine the efficiency of mini-implants as intraoral anchorage units for en-masse retraction of the 6 maxillary anterior teeth when the first premolars are extracted compared with conventional methods of anchorage reinforcement. METHODS Thirty patients requiring high anchorage after extraction of the maxillary first premolars were selected for this s...
متن کاملFinite element analysis of maxillary incisor displacement during en-masse retraction according to orthodontic mini-implant position
OBJECTIVE Orthodontic mini-implants (OMI) generate various horizontal and vertical force vectors and moments according to their insertion positions. This study aimed to help select ideal biomechanics during maxillary incisor retraction by varying the length in the anterior retraction hook (ARH) and OMI position. METHODS Two extraction models were constructed to analyze the three-dimentional f...
متن کاملQuantification of intrusive/retraction force and moment generated during en-masse retraction of maxillary anterior teeth using mini-implants: A conceptual approach
OBJECTIVE The aim of the present study was to clarify the biomechanics of en-masse retraction of the upper anterior teeth and attempt to quantify the different forces and moments generated using mini-implants and to calculate the amount of applied force optimal for en-masse intrusion and retraction using mini-implants. METHODS The optimum force required for en-masse intrusion and retraction c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress in Orthodontics
سال: 2016
ISSN: 2196-1042
DOI: 10.1186/s40510-016-0143-z