PubMed · 1978 · 22 citations · 0 references
DentistryOrthopaedic SurgeryOrthopedic SurgeryBone MetabolismCircadian RhythmsCraniofacial GrowthCartilage MetabolismCircadian PhysiologyDevelopmental Circadian RhythmsMandibular DevelopmentMandibular GrowthOsteogenesisCartilage Growth At The CondyleCondylar AnatomyDiurnal Growth RhythmsEndogenous Circannual RhythmsMandibular Condyle MorphologyMandibular Growth PatternsMandibular Growth RateMandibular Growth Timing
The growth rate of the cartilage of the mandibular condyle in the young rat exhibits: - a circadian cycle with a maximum of the 3H-thymidine labelled cells around 13(00) and a minimum around 01(00); with a maximum in the number of mitoses around 21(00) and a minimum around 09(00). - a circannual cycle with a maximum in May and a minimum between November and January, and with a difference in rhythms between May and November. The condylar cartilage growth in response to orthopaedical appliances of the mandible is modified and exhibits: - circadian variations. - circannual variations. The responsiveness of the condylar cartilage to orthopaedic appliances is greater when the condylar cartilage growth rate is higher.