Dentistry – Orthodontics – By device having means to apply outwardly directed force
Patent
1998-03-10
2000-05-16
Wilson, John J.
Dentistry
Orthodontics
By device having means to apply outwardly directed force
433 18, A61C 300
Patent
active
060628545
ABSTRACT:
Apparatus having screw means for the mandibular distraction comprising, for each side of the dental arch under treatment, at least two bands (1, 10) capable of being fitted on predetermined dental elements and fixed to corresponding bodies (5, 6) with two parallel guide rods (7) going therethrough and disposed on opposite sides with respect to the expansion screw (2) which drives said bodies (5, 6) away from each other to allow for the corresponding stretching apart of said bands (1, 10), said screw (2) being provided with a driving portion (20) for driving it into rotation under the operator's control to cause the said separation of the orthodontic bands (1, 10) associated to the bodies (5, 6). The driving portion (20) of the screw (2) is arranged, in correspondence of the head of the screw (2), parallel to said rods (7): the driving portion (20) of the screw (2) facing the mouth of the patient to be engagable by a driving tool (8).
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LEONE S.P.A., Rapid Exapander--For Palatal Suture Separation, Leone catalogue.
Leone S.p.A.
Wilson John J.
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