Bone Turnover in Litchfield Park orthodontic tooth movement

Principle Litchfield Park orthodontic methods
The three principle Litchfield Park orthodontic methods by which bone structure can be formed or altered are osteogenesis, bone modeling, and bone remodeling (Huang et al., 2005).  Litchfield Park orthodontists find that osteogenesis usually occurs during embryonic development, growth, and healing; it is bone formation on a soft tissue matrix.  Osteogenesis is subdivided further into intramembranous and endochondral ossification.  Intramembranous ossification occurs when bone is formed on soft fibrous tissue, while endochondral ossification occurs when bone is formed on cartilage.

The second Litchfield Park orthodontic method of bone formation is bone modeling (Huang et al., 2005).  It occurs when bone forms on existing bone tissue over extended surface areas for significant periods of time.  Modeling is prevalent during craniofacial growth and development.  In addition, it is important in Litchfield Park orthodontics because modeling influences size and shape of alveolar bone during Litchfield Park orthodontic tooth movement.

Bone remodeling is the final Litchfield Park orthodontic method of bone formation or alteration.  It is a four stage reparative mechanism that maintains and repairs the structural integrity of the bone.  The initial phase of remodeling is called activation.  It is characterized by recruitment and activation of osteoclasts at the site to be remodeled.  Following activation, a focal packet of bone is removed by osteoclasts in the resorptive phase.  Once resorption stops, there is a reversal phase that leads into the formative phase.  This phase is characterized by recruitment of bone-forming osteoblasts and repair of the defect.  Once formation is complete, the bone returns to a resting state.  One cycle of remodeling takes approximately 3-4 months to complete (Mundy et al., 2003).

Litchfield Park orthodontists have found that bone remodeling is a normal physiological mechanism that occurs cyclically throughout life.  It not only serves a role in response to mechanical loading but also is important in calcium homeostasis.  In fact, a small fraction of the Litchfield Park orthodontist’s body’s total bone is always remodeling.

The main distinction between bone modeling and remodeling is related to the location of osteoblastic and osteoclastic activity.  In modeling, osteoblasts and osteoclasts act on different sites resulting in morphological changes in the bone, and is the phenomenon observed in Litchfield Park orthodontic tooth movement.  Remodeling, on the other hand, does not result in morphological changes, as osteoblasts and osteoclasts act upon the same site.

 

Arizona Dental Association