A simple overview of daily orthodontic practice involves use of brackets, wires and elastomeric modules. However, investigating the underlying effect of orthodontic forces shows various molecular and cellular changes....A simple overview of daily orthodontic practice involves use of brackets, wires and elastomeric modules. However, investigating the underlying effect of orthodontic forces shows various molecular and cellular changes. Also, orthodontics is in close relation with dentofacial orthopedics which involves bone regeneration. In this review current and future applications of stem cells(SCs) in orthodontics and dentofacial orthopedics have been discussed. For craniofacial anomalies, SCs have been applied to regenerate hard tissue(such as treatment of alveolar cleft) and soft tissue(such as treatment of hemifacial macrosomia). Several attempts have been done to reconstruct impaired temporomandibular joint. Also, SCs with or without bone scaffolds and growth factors have been used to regenerate bone following distraction osteogenesis of mandibular bone or maxillary expansion. Current evidence shows that SCs also have potential to be used to regenerate infrabony alveolar defects and move the teeth into regenerated areas. Future application of SCs in orthodontics could involve accelerating tooth movement, regenerating resorbed roots and expanding tooth movement limitations. However, evidence supporting these roles is weak and further studies are required to evaluate the possibility of these ideas.展开更多
In view of orthognathic surgery,on the basis of the ccphalometric data of the youths innorth-west China,the most common 29 parameters were chosen,including angles,linear measureand ratio.For analysis,they were divided...In view of orthognathic surgery,on the basis of the ccphalometric data of the youths innorth-west China,the most common 29 parameters were chosen,including angles,linear measureand ratio.For analysis,they were divided into four groups:general profile feature,maxilla andorbital-zygomatic regio,mandible and chin.This kind of analysis can be usecd for clinicaldiagnosis and for detemining the nature,position and degree of the dcformities.It is espceially effec-five in the designing of operation and prediction of the result of the surgery.展开更多
文摘A simple overview of daily orthodontic practice involves use of brackets, wires and elastomeric modules. However, investigating the underlying effect of orthodontic forces shows various molecular and cellular changes. Also, orthodontics is in close relation with dentofacial orthopedics which involves bone regeneration. In this review current and future applications of stem cells(SCs) in orthodontics and dentofacial orthopedics have been discussed. For craniofacial anomalies, SCs have been applied to regenerate hard tissue(such as treatment of alveolar cleft) and soft tissue(such as treatment of hemifacial macrosomia). Several attempts have been done to reconstruct impaired temporomandibular joint. Also, SCs with or without bone scaffolds and growth factors have been used to regenerate bone following distraction osteogenesis of mandibular bone or maxillary expansion. Current evidence shows that SCs also have potential to be used to regenerate infrabony alveolar defects and move the teeth into regenerated areas. Future application of SCs in orthodontics could involve accelerating tooth movement, regenerating resorbed roots and expanding tooth movement limitations. However, evidence supporting these roles is weak and further studies are required to evaluate the possibility of these ideas.
文摘In view of orthognathic surgery,on the basis of the ccphalometric data of the youths innorth-west China,the most common 29 parameters were chosen,including angles,linear measureand ratio.For analysis,they were divided into four groups:general profile feature,maxilla andorbital-zygomatic regio,mandible and chin.This kind of analysis can be usecd for clinicaldiagnosis and for detemining the nature,position and degree of the dcformities.It is espceially effec-five in the designing of operation and prediction of the result of the surgery.
