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搜索结果: 1-15 共查到口腔正畸学 Retraction相关记录21条 . 查询时间(0.042 秒)
Objectives: To estimate and compare the magnitude and direction of initial displacement of the canine produced by four different canine retraction springs. Materials and Methods: A freshly macerate...
The Principles And Application Of Translatory Cuspid Retraction.
Bodily Retraction Of Maxillary Incisors In Extraction Cases.
A Laminagraphic Study of Cuspid Retraction versus Molar Anchorage Loss.
A Clinical Investigation of the Concepts of Differential and Optimal Force in Canine Retraction.
Cervical Retraction of the Maxillae in the Macaca Mulatta Monkey Using Heavy Orthopedic Force.
Evaluation of upper lip retraction with retraction of the incisor edge in 41 Class II cases showed an average ratio of 1:3.8. Increase in the nasolabial angle was found to be associated with chang...
Distal tipping forces were applied to the maxillary cuspid teeth of five domestic cats. Surgical elimination of the gingival attachment of one tooth in each cat resulted in greater distal crown mo...
A photoelastic study comparing the effects of the activations of three retraction arch wires used in orthodontic therapy. Schematic representations of space consolidations, intrusion and root torque a...
Flared incisors and deep overbite are challenging to treat orthodontically. This paper describes the use of a three-piece base arch and Class I elastics to correct deep overbite while simultaneously c...
Moderate to severe protrusion of anterior teeth often necessitates the extraction of 4 premolars to retract anterior teeth into their space. We present a formula that determines how far the mandibular...
We designed a variant of a cantilever spring, the statically determinate retraction system, and studied its mechanical characteristics. This novel system consisted of a single-force cantilever arm m...
The soft tissue changes after the extraction of maxillary first premolars and subsequent anterior tooth retraction were evaluated for 16 Class II, division 1 patients. Pre- and posttreatment lateral...
An adult female patient who presented with a severe Class II division 1 malocclusion was treated by en masse retraction of upper anterior teeth against zygomatic anchorage. This case report describes ...
A new geometry of orthodontic retraction spring was experimentally studied through an electronic device (platform for measuring forces), using strain gauges that were adapted to cantilever beams. The ...

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