How many subjects were included in the Bjork implant study?

The Bjork implant study, a significant research project in orthodontics, included 21 subjects. This number is important because it reflects the study's scale and the ability to draw meaningful conclusions about growth patterns and implant behavior. By including this specific cohort, researchers were able to analyze and track the changes in skeletal structures over time, establishing essential data on dental and facial development in response to orthodontic forces. Knowing the precise number of subjects helps contextualize the reliability and validity of the study's findings, which are often referenced in orthodontic literature and practice.