There is a scarcity in the current literature regarding such appliance and its effect on distalizing the first maxillary molar in absence of the second molar. Therefore, this study was made to evaluate the effect of bilateral distalization of upper first molars in a group of patients after extraction of maxillary second Molars using infra zygomatic mini implants.
The appliances available for distalization used to be mainly extraoral distalizing appliances which depended entirely on patient cooperation and compliance. Even after the emergence of intra-oral distalizing appliances they had adverse dentoalveolar effect such as anchorage loss and flaring of the upper anterior teeth. Thus, this study was made in order to evaluate the efficiency of our proposed appliance in the treatment of Class II patients while avoiding the adverse effects mentioned above.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
10
The inner bow (1.2mm) is a modified version of the inner part of a conventional face bow. Two hooks were soldered onto the inner bow distal to the lateral incisor teeth regions, and U loop at 1st premolar region, and bends acting as mesial stop will be bent in front of the maxillary first molars. The anterior component of the inner bow is 3 mm free from the labial surface of anterior teeth
Future University In Egypt
New Cairo, Cairo Governorate, Egypt
linear distalization of maxillary 1st molar.
Efficiency of the proposed appliance to induce distalization of the upper 1st molar measured on Scanned dental casts as well as cone-beam computed tomography (CBCT) in millimetres.
Time frame: Up until Class I Molar Relation (a maximum of 8 months regardless)
Rate of maxillary 1st molar Distalization in mm/ month.
Efficiency of the proposed appliance to induce distalization of the upper 1st molar measured on Scanned dental casts with a monthly follow up in millimetres.
Time frame: Up until Class I Molar Relation (a maximum of 8 months regardless)
Changes in Intermolar width in mm.
Effect of the proposed appliance on the transverse Dental changes in the upper buccal segment through scanned dental cast in millimetres
Time frame: Up until Class I Molar Relation (a maximum of 8 months regardless)
Changes of Molar inclination in degrees.
Effect of the proposed appliance on the angulation of the first permanent molar through scanned dental cast and cone-beam computed tomography (CBCT) in degrees.
Time frame: Up until Class I Molar Relation (a maximum of 8 months regardless)
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