The adaptation and development of biological concepts in orthodontics / Ze'ev Davidovitch and Neal C. Murphy -- Biology of orthodontic tooth movement : an overview / Vinod Krishnan, Young Guk Park and Ze'ev Davidovitch -- The mechanobiology of the periodontal tissues / Itzhak Binderman . [and others] -- Genetic influences on orthodontic tooth movement / Maggie Zeichner-David -- The role of inflammation in defining the type and pattern of tissue response in orthodontic tooth movement / Masaru Yamaguchi -- Biological aspects of bone growth and metabolism in orthodontics / Song Chen, James K. Hartsfield, Jr. and W. Eugene Roberts -- Markers of paradental tissue remodeling in the gingival crevicular fluid of orthodontic patients / Laura R. Iwasaki and Jeffrey C. Nickel -- Effects of systemic diseases on orthodontic tooth movement / Ze'ev Davidovitch and Vinod Krishnan -- The effect of drugs and diet on orthodontic tooth movement / Vinod Krishnan and Ze'ev Davidovitch -- Biologically and clinically, what are optimal orthodontic forces and how are they applied in selective common malocclusions? / Vincent De Angelis and Ze'ev Davidovitch -- The biological background of relapse of orthodontic tooth movement / Jaap C. Maltha and Anne Marie Kuijpers-Jagtman -- Mechanical and biological determinants of iatrogenic injuries in orthodontics / Vinod Krishnan.