An Approach to Determine the Necessity of Orthognathic osteotomy or Orthodontic Treatment in a Cleft Individual -comparison of craniomaxillo-facial structures in borederline cases by roentogenocephalometrics-

摘要

At an early stage of growth, it seems nearly impossible to predict the treatment result which the malocclusion of a cleft partient could be corrected by surgical or orthodonic treatment. This study was done to get any clue to confirm be way which the treatment should be finished one or another of both plans for so called a "borederline case" by using a method of data analysis gained from roentgenocephalograms longitudinally. The subjects were unilateral cleft lip & plate patients, who were divided into two groups. One was the OPE group which are corrected b orthodontic treatment with orthognathic osteotomy, the other was the Non-OPE group which are corrected by orthodontics only.