中国实用医药
中國實用醫藥
중국실용의약
CHINA PRACTICAL MEDICAL
2014年
28期
24-25,26
,共3页
牙根吸收%全颌曲面断层片%高位J钩
牙根吸收%全頜麯麵斷層片%高位J鉤
아근흡수%전합곡면단층편%고위J구
Root resorption%Panoramic radiography%High pull J hook headgear
目的：研究在正畸治疗中内收及压低上颌前牙时牙根吸收的情况。方法40例上颌前突的AngleⅠ类或AngleⅡ类1分类错牙合畸形的病例，其中20例采用单纯直丝弓治疗(直丝弓组)，另外20例在内收前牙阶段配合应用高位J钩压低上前牙(直丝弓配合高位J钩组)。矫治前后拍摄全颌曲面断层片，分别测量两组治疗前后的上前牙牙根吸收等级。结果两组病例矫治后均有牙根吸收，两组治疗后牙根吸收等级差异有统计学意义(P<0.01)；每组治疗前后的牙根吸收等级比较，差异有统计学意义(P<0.01)。结论在正畸治疗内收上前牙中配合高位J钩较易引起前牙的牙根吸收。
目的：研究在正畸治療中內收及壓低上頜前牙時牙根吸收的情況。方法40例上頜前突的AngleⅠ類或AngleⅡ類1分類錯牙閤畸形的病例，其中20例採用單純直絲弓治療(直絲弓組)，另外20例在內收前牙階段配閤應用高位J鉤壓低上前牙(直絲弓配閤高位J鉤組)。矯治前後拍攝全頜麯麵斷層片，分彆測量兩組治療前後的上前牙牙根吸收等級。結果兩組病例矯治後均有牙根吸收，兩組治療後牙根吸收等級差異有統計學意義(P<0.01)；每組治療前後的牙根吸收等級比較，差異有統計學意義(P<0.01)。結論在正畸治療內收上前牙中配閤高位J鉤較易引起前牙的牙根吸收。
목적：연구재정기치료중내수급압저상합전아시아근흡수적정황。방법40례상합전돌적AngleⅠ류혹AngleⅡ류1분류착아합기형적병례，기중20례채용단순직사궁치료(직사궁조)，령외20례재내수전아계단배합응용고위J구압저상전아(직사궁배합고위J구조)。교치전후박섭전합곡면단층편，분별측량량조치료전후적상전아아근흡수등급。결과량조병례교치후균유아근흡수，량조치료후아근흡수등급차이유통계학의의(P<0.01)；매조치료전후적아근흡수등급비교，차이유통계학의의(P<0.01)。결론재정기치료내수상전아중배합고위J구교역인기전아적아근흡수。
Objective To investigate the root resorption during orthodontic treatment with retracting and intruding the anterior teeth. Methods There were 40 cases of Angle Class Ⅰor Angle Class Ⅱcrossbite of maxillary protrusion. Among them, 20 cases were treated by straight wire along (straight wire group), and the other 20 cases were treated by additional high pull J hook headgear (HPHG) to assist anterior teeth retraction. Panoramic radiographs were taken before and after the orthodontic treatment, and were used to evaluate the degree of root resorption of upper anterior teeth. Results Root resorption occurred in both groups, and the difference of the degree of root resorption between the two groups had statistical significance (P<0.01). There were differences of the degree of root resorption in each group before and after the treatment (P<0.01). Conclusion The combination of HPHG and straight wire in orthodontic treatment can lead to easy root resorption of anterior teeth.
