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Changes in Periodontal Ligament During Orthodontic Tooth Movement

  • INTRODUCTION
  • PERIODONTAL LIGAMENT
  • CELLS OF THE PERIODONTAL LIGAMENT
  • EXTRACELLULAR SUBSTANCE
  • FIBERS OF THE PERIODONTAL LIGAMENT
  • PERIODONTAL LIGAMENT FUNCTION
  • PERIODONTAL LIGAMENT RESPONSE TO NORMAL FUNCTION
  • THEORIES OF TOOTH MOVEMENT
  • ORTHODONTIC TOOTH MOVEMENT AS RELATED TO BONE DEFORMATION
  • ORTHODONTIC TOOTH MOVEMENT AS RELATED TO BIOCHEMICAL REACTION
  • BIOLOGIC MECHANISMS INVOLVED IN THE TRANSFORMATION OF EXTERNAL STIMULI TO SPECIFIC TISSUE REACTIONS
  • RESPONSE OF PERIODONTAL LIGAMENT ON: PRESSUE SIDE¬† & TENSION SIDE
  • TYPES OF TOOTH MOVEMENT
  • OPTIMUM FORCES FOR ORTHODONTIC MOVEMENT
  • EFFECTS OF FORCE DURARTION AND FORCE DECAY
  • EFFECTS OF FORCE MAGITUDE
  • DRUG EFFECT ON RESPONSE TO ORTHODONTIC FORCE
    • Orthodontic treatment is based on the principle that if prolonged pressure is applied to a tooth, tooth movement will occur as the bone around the tooth remodels. Bone is selectively removed in some areas and added in others. In essence, the tooth moves through the bone carrying its attachment apparatus with it, as the socket of the tooth migrates because the periodontal ligament mediates the bony response, tooth movement is primarily a periodontal ligament phenomenon.

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