Facial growth prediction: a comparison of methodologies.

Introduction: The purpose of this study was to compare 3 methodologies that predict facial growth relative to incremental and positional changes over short- and long-term time periods. The 3 prediction systems that were tested and compared were the Ricketts analysis, the Johnston grid analysis, and the Fishman maturational analysis.

Methods: Serial lateral cephalometric headfilms and hand-wrist films of 50 untreated subjects from the Burlington Growth Center at the University of Toronto, Toronto, Ontario, Canada, were used.

Retrospective revelations: twenty orthodontically treated individuals with unilateral cleft lip and palate.

Aim: Twenty patients with unilateral cleft lip and palate, orthodontically treated from the full primary or early transitional dentition stages until retention and dismissal, were recalled later in adult life to evaluate the status of their occlusion and facial appearance.

Methods: Cephalometric radiographs, photographs, and casts were attained as final records. In several instances, final records were obtained by orthodontic colleagues at the patient's current residence.

Dentoalveolar changes related to mandibular forward growth in untreated Class II persons.

The purpose of this study was to investigate dentoalveolar changes related to mandibular forward growth in persons with Class II malocclusions. The longitudinal cephalometric films of 40 subjects with untreated Class II malocclusions from mean age 8.8 to 17.

Cranial base and facial skeleton asymmetries in individuals with unilateral cleft lip and palate.

Objective: Individuals with unilateral cleft lip and palate (UCLP) manifest a plethora of phenotypic characteristics, including asymmetric development of the middle and lower facial skeleton. The purpose of this study was to retrospectively investigate the development of cranial base asymmetries in patients with UCLP noted on posteroanterior cephalometric radiographs.

Methods: Thirty individuals with UCLP and 64 controls participated in this study.