Related Experiment Video
Updated: Oct 3, 2026
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
[One year observation of craniomandibular structure changes of skeletal Class II patients in early permanent
Objective:
To study the craniomandibular growth of skeletal class II patients in early permanent dentition so that demonstrate malocclusion development and decide orthodontic treatment opportunity.
Methods:
Forty skeletal class II patients in early permanent dentition were selected at random and observed for one year. The lateral cephalometric X-ray films were taken before and after observation for every patient, then Downs analysis and doublet test were made.
Results:
Female patients' jaws relation didn't change in early permanent dentition, but upper incisors were more protrusive than before, and lower incisors inclined lingualy. Male patients' mandible grew upward and forward, but the absolute value of small change.
Conclusion:
It is necessary to treat skeletal class II deformities early.
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