中华口腔医学杂志
中華口腔醫學雜誌
중화구강의학잡지
Chinese Journal of Stomatology
2012年
z1期
127-131
,共5页
江久汇%Edward F.Harris
江久彙%Edward F.Harris
강구회%Edward F.Harris
错(牙合),安氏Ⅲ类%牙列,恒%前方牵引%Pitchfork分析法
錯(牙閤),安氏Ⅲ類%牙列,恆%前方牽引%Pitchfork分析法
착(아합),안씨Ⅲ류%아렬,항%전방견인%Pitchfork분석법
Malocclusion,Angle Class Ⅲ%Dentition,permanent%Facemask protraction%Pitchfork analysis
目的 应用Pitchfork分析法研究恒牙早期安氏Ⅲ类错(牙合)患者上颌前方牵引联合快速扩弓的骨性和牙性矫治效果,为早期矫治的时机选择提供参考依据.方法 19例恒牙早期安氏Ⅲ类错(牙合)患者,非治疗观察6个月后(观察期),应用前方牵引联合快速扩弓早期矫治6个月(治疗期),随后直接进入固定矫治器治疗.应用Pitchfork分析法对比观察期和治疗期功能性(牙合)平面上骨骼及牙齿的位置改变.结果 在功能性(牙合)平面上早期矫治造成磨牙关系改变了7.9 mm,包括骨性改变4.2 mm、牙性改变3.7 mm；骨性改变中上颌骨贡献了0.7 mm,下颌骨贡献3.6 mm,牙性改变中上磨牙贡献了1.5 mm,下磨牙贡献2.2 mm.结论 恒牙早期阶段开始前方牵引联合快速扩弓的早期矫治Ⅲ类错(牙合)可取得较大的牙(牙合)关系改善,但对上颌骨的作用有限.
目的 應用Pitchfork分析法研究恆牙早期安氏Ⅲ類錯(牙閤)患者上頜前方牽引聯閤快速擴弓的骨性和牙性矯治效果,為早期矯治的時機選擇提供參攷依據.方法 19例恆牙早期安氏Ⅲ類錯(牙閤)患者,非治療觀察6箇月後(觀察期),應用前方牽引聯閤快速擴弓早期矯治6箇月(治療期),隨後直接進入固定矯治器治療.應用Pitchfork分析法對比觀察期和治療期功能性(牙閤)平麵上骨骼及牙齒的位置改變.結果 在功能性(牙閤)平麵上早期矯治造成磨牙關繫改變瞭7.9 mm,包括骨性改變4.2 mm、牙性改變3.7 mm；骨性改變中上頜骨貢獻瞭0.7 mm,下頜骨貢獻3.6 mm,牙性改變中上磨牙貢獻瞭1.5 mm,下磨牙貢獻2.2 mm.結論 恆牙早期階段開始前方牽引聯閤快速擴弓的早期矯治Ⅲ類錯(牙閤)可取得較大的牙(牙閤)關繫改善,但對上頜骨的作用有限.
목적 응용Pitchfork분석법연구항아조기안씨Ⅲ류착(아합)환자상합전방견인연합쾌속확궁적골성화아성교치효과,위조기교치적시궤선택제공삼고의거.방법 19례항아조기안씨Ⅲ류착(아합)환자,비치료관찰6개월후(관찰기),응용전방견인연합쾌속확궁조기교치6개월(치료기),수후직접진입고정교치기치료.응용Pitchfork분석법대비관찰기화치료기공능성(아합)평면상골격급아치적위치개변.결과 재공능성(아합)평면상조기교치조성마아관계개변료7.9 mm,포괄골성개변4.2 mm、아성개변3.7 mm；골성개변중상합골공헌료0.7 mm,하합골공헌3.6 mm,아성개변중상마아공헌료1.5 mm,하마아공헌2.2 mm.결론 항아조기계단개시전방견인연합쾌속확궁적조기교치Ⅲ류착(아합)가취득교대적아(아합)관계개선,단대상합골적작용유한.
Objective To investigate the skeletal and dental contribution rate to the improvement of dental relationships along the functional occlusion plane after face mask and rapid palatal expansion (FM/RPE) treatment in Class Ⅲ patients.Methods Nineteen Class Ⅲ patients in early permanent dentition firstly were observed for 6 months and then FM/RPE treatment was applied for another 6 months.Pitchfork analysis was used to evaluate the skeletal and dental changes between these two periods.Results FM/RPE treatment made 7.9 mm molar correction in general,which included 4.2 mm skeletal change and 3.7 mm dental change.For the skeletal change,maxillary contribution was 0.7 mm while mandibular contribution was 3.6 mm.For the dental change,upper molar contributed 1.5 mm while lower molar 2.2 mm.Conclusions The treatment with FM/RPE for the Class Ⅲ patients in their early permanent dentition could get great occlusion improvement and limited skeletal change.For the molar relationship improvement,the skeletal and dental contribution ratio was nearly 1:1.And within the skeletal change,the contribution ratio of upper and lower jaw was about 1:5.Within the dental change,the contribution ratio of upper and lower molar was about 1:1.
