Premolar extraction and vertical facial dimension
The pretreatment and posttreatment cephalograms were digitized, and 6 linear and 8 angular cephalometric measurements were selected to evaluate vertical changes.
Class I maloccusions were selected to study in order to eliminate excessive molar movement during treatment of Class II and III malocclusions.
SellaNasion to GonionGnathion angle 8.
This result suggests that some residual growth as well as treatment effects took place.
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Comparison of the pretreatment ages of extraction and nonextraction groups of male and female patients Female patients Male patients t Value P value Extraction group yr
This study compares the mesial movement of molars and changes in FVD between P1 and P2 extraction groups in Class I malocclusion with a hyperdivergent facial type.
The amount of mesial molar movement can be very little if anchorage is well maintained.
The pretreatment and posttreatment lateral cephalograms were taken on the same radiographic unit and traced and digitized by 1 operator.
The extraction-nonextraction dilemma as it relates to TMD.
First or second premolar extraction effects on facial vertical dimension.
Angular cephalometric measurements.