微種植體支抗結(jié)合片段弓遠(yuǎn)中移動牙列的臨床研究
發(fā)布時(shí)間：2019-03-17 19:21
【摘要】：目的:利用微種植體支抗結(jié)合片段弓技術(shù)遠(yuǎn)中移動上下牙列,與拔除第二前磨牙矯治牙列輕中度擁擠作比較,探究解決患者牙列輕中度擁擠的方法。并分析在磨牙遠(yuǎn)移過程中,磨牙的遠(yuǎn)移量和遠(yuǎn)移方式。方法:采用回顧性研究,選取于青島大學(xué)附屬醫(yī)院口腔正畸科就診的患者20例,牙列輕中度擁擠。其中10例為微種植支抗結(jié)合片段弓遠(yuǎn)中移動上下牙列矯治,治療開始前拔除第三磨牙。另外10例為拔除四顆第二前磨牙矯治。分別測量治療前后x線頭顱定位側(cè)位片,對兩組治療前后的軟硬組織測量結(jié)果及矯治時(shí)間進(jìn)行比較分析,組內(nèi)結(jié)果進(jìn)行配對t檢驗(yàn),比較兩組治療前后軟硬組織及牙齒的變化情況,組間使用獨(dú)立樣本t檢驗(yàn)進(jìn)行分析,應(yīng)用SPSS19.0軟件對各組數(shù)據(jù)進(jìn)行統(tǒng)計(jì)學(xué)分析,以評定療效。結(jié)果:兩組患者上下牙列的擁擠均得以解除,且切牙均得到一定程度內(nèi)收。種植支抗組:骨性指標(biāo)SNA角、SNB角、ANB角、面角、Y軸角、FMA角在治療前后無顯著性變化;牙性指標(biāo)U1/NA角、U1/NA距、U1/SN角、L1/NB角、L1/NB距、L1/MP角、U1/L1角在治療前后均有顯著性變化,差異有統(tǒng)計(jì)學(xué)意義(P0.05);上下頜第一磨牙牙冠平均向遠(yuǎn)中移動3.2mm和3.1mm,上下切牙牙冠分別內(nèi)收2.3mm和2.0mm。軟組織指標(biāo)NLA角、UL-EP距、LL-EP距治療后有顯著變化,差異有統(tǒng)計(jì)學(xué)意義(P0.05)。在遠(yuǎn)移的過程中,磨牙基本上為整體移動,伴隨著輕微的遠(yuǎn)中傾斜。拔牙組:骨性指標(biāo)SNA角、SNB角、ANB角、面角、Y軸角、FMA角在治療前后無顯著性變化;牙性指標(biāo)U1/NA角、U1/NA距、U1/SN角、L1/NB角、L1/NB距、L1/MP角、U1/L1角在治療前后均有顯著性變化,差異有統(tǒng)計(jì)學(xué)意義(P0.05);上下頜第一磨牙牙冠平均向近中移動3.1mm和3.0mm,上下切牙牙冠分別內(nèi)收2.6mm和2.2mm;軟組織指標(biāo)NLA角、UL-EP距、LL-EP距治療后有顯著變化,差異有統(tǒng)計(jì)學(xué)意義(P0.05)。種植支抗組與拔牙組治療前后的變化量:骨性指標(biāo)SNA角、SNB角、ANB角、面角、Y軸角、FMA角,牙性指標(biāo)U1/NA角、U1/NA距、U1/SN角、L1/NB角、L1/NB距、L1/MP角、U1/L1角,軟組織指標(biāo)NLA角、UL-EP距、LL-EP距,兩組比較差異沒有統(tǒng)計(jì)學(xué)意義(P0.05)。兩組矯治時(shí)間的比較:種植支抗組平均治療時(shí)間15.8±2.25個(gè)月,拔牙組平均治療時(shí)間為19.6±3.40個(gè)月。兩組比較差異具有統(tǒng)計(jì)學(xué)意義(P0.05)。結(jié)論:利用微種植支抗結(jié)合片段弓技術(shù)遠(yuǎn)移上下牙列是矯治輕中度擁擠的有效方法。其治療效果與拔除第二前磨牙的治療效果無明顯差異。微種植支抗結(jié)合片段弓遠(yuǎn)移上下牙列矯治技術(shù)與傳統(tǒng)拔牙矯治相比,極大地縮短了臨床治療時(shí)間。
[Abstract]:Aim: to investigate the treatment of mild to moderate dentition crowding by microimplant Anchorage and fragment arch technique, and compare it with extraction of the second premolars for the treatment of mild to moderate crowding of dentition in order to find out the way to solve the problem of mild to moderate overcrowding of dentition in patients with mild to moderate dentition. In the process of molar distal migration, the distance displacement and the way of distal movement were analyzed. Methods: a retrospective study was conducted in 20 patients with mild to moderate overcrowding in the Department of Orthodontics, affiliated Hospital of Qingdao University. Among them, 10 cases were treated with distal movement of upper and lower dentition with microimplant Anchorage and fragment arch, and the third molar was extracted before treatment. The other 10 cases were treated with extraction of four second premolars. X-ray cephalometric lateral radiographs were measured before and after treatment, and the soft and hard tissue measurement results and correction time of the two groups were compared and analyzed before and after treatment. The results in the group were paired with t-test. The changes of soft and hard tissues and teeth before and after treatment were compared between the two groups. Independent sample t-test was used to analyze the data between the two groups. SPSS19.0 software was used to analyze the data of each group statistically in order to evaluate the curative effect. Results: the overcrowding of upper and lower dentition was relieved in both groups, and the incisors were received to a certain extent. In implant Anchorage group, SNA angle, SNB angle, ANB angle, facial angle, Y-axis angle and FMA angle had no significant change before and after treatment. There were significant changes in U1/NA angle, U1/NA distance, U1/SN angle, L1/NB distance, L1/MP angle and U1/L1 angle before and after treatment (P0.05). The upper and lower first molar crowns moved to the distal 3.2mm and 3.1 mm on average, and the upper and lower incisor crowns received 2.3mm and 2.0 mm, respectively. Soft tissue parameters such as NLA angle, UL-EP distance and LL-EP distance had significant changes after treatment, the difference was statistically significant (P0.05). In the process of distal migration, the molar is basically a whole movement, accompanied by a slight distal tilt. In extraction group, SNA angle, SNB angle, ANB angle, facial angle, Y-axis angle and FMA angle had no significant change before and after treatment. There were significant changes in U1/NA angle, U1/NA distance, U1/SN angle, L1/NB distance, L1/MP angle and U1/L1 angle before and after treatment (P0.05). The upper and lower first molar crowns moved to 3.1mm and 3.0 mm on average, and the upper and lower incisors received 2.6mm and 2.2 mm respectively. Soft tissue parameters such as NLA angle, UL-EP distance and LL-EP distance had significant changes after treatment, the difference was statistically significant (P0.05). The changes of bone index SNA angle, SNB angle, ANB angle, facial angle, Y axis angle, FMA angle, dental index U1/NA angle, U1/NA distance, U1/SN angle, L1/NB distance, L1/MP angle before and after treatment in implant Anchorage group and tooth extraction group. There was no significant difference in U1/L1 angle, soft tissue index NLA angle, UL-EP distance and LL-EP distance between the two groups (P0.05). The average treatment time was 15.8 鹵2.25 months in the implant Anchorage group and 19.6 鹵3.40 months in the tooth extraction group, and the average treatment time in the two groups was 15.8 鹵2.25 months in the implant Anchorage group and 19.6 鹵3.40 months in the extraction group. The difference between the two groups was statistically significant (P0.05). Conclusion: microimplant Anchorage combined with segmental arch technique is an effective method for the treatment of mild to moderate congestion. There was no significant difference between the treatment effect and the second premolar extraction. Compared with the traditional dental extraction treatment, the clinical treatment time is greatly shortened by micro-implant Anchorage combined with segment arch distal movement of upper and lower dentition.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：R783.5
本文編號：2442619
[Abstract]:Aim: to investigate the treatment of mild to moderate dentition crowding by microimplant Anchorage and fragment arch technique, and compare it with extraction of the second premolars for the treatment of mild to moderate crowding of dentition in order to find out the way to solve the problem of mild to moderate overcrowding of dentition in patients with mild to moderate dentition. In the process of molar distal migration, the distance displacement and the way of distal movement were analyzed. Methods: a retrospective study was conducted in 20 patients with mild to moderate overcrowding in the Department of Orthodontics, affiliated Hospital of Qingdao University. Among them, 10 cases were treated with distal movement of upper and lower dentition with microimplant Anchorage and fragment arch, and the third molar was extracted before treatment. The other 10 cases were treated with extraction of four second premolars. X-ray cephalometric lateral radiographs were measured before and after treatment, and the soft and hard tissue measurement results and correction time of the two groups were compared and analyzed before and after treatment. The results in the group were paired with t-test. The changes of soft and hard tissues and teeth before and after treatment were compared between the two groups. Independent sample t-test was used to analyze the data between the two groups. SPSS19.0 software was used to analyze the data of each group statistically in order to evaluate the curative effect. Results: the overcrowding of upper and lower dentition was relieved in both groups, and the incisors were received to a certain extent. In implant Anchorage group, SNA angle, SNB angle, ANB angle, facial angle, Y-axis angle and FMA angle had no significant change before and after treatment. There were significant changes in U1/NA angle, U1/NA distance, U1/SN angle, L1/NB distance, L1/MP angle and U1/L1 angle before and after treatment (P0.05). The upper and lower first molar crowns moved to the distal 3.2mm and 3.1 mm on average, and the upper and lower incisor crowns received 2.3mm and 2.0 mm, respectively. Soft tissue parameters such as NLA angle, UL-EP distance and LL-EP distance had significant changes after treatment, the difference was statistically significant (P0.05). In the process of distal migration, the molar is basically a whole movement, accompanied by a slight distal tilt. In extraction group, SNA angle, SNB angle, ANB angle, facial angle, Y-axis angle and FMA angle had no significant change before and after treatment. There were significant changes in U1/NA angle, U1/NA distance, U1/SN angle, L1/NB distance, L1/MP angle and U1/L1 angle before and after treatment (P0.05). The upper and lower first molar crowns moved to 3.1mm and 3.0 mm on average, and the upper and lower incisors received 2.6mm and 2.2 mm respectively. Soft tissue parameters such as NLA angle, UL-EP distance and LL-EP distance had significant changes after treatment, the difference was statistically significant (P0.05). The changes of bone index SNA angle, SNB angle, ANB angle, facial angle, Y axis angle, FMA angle, dental index U1/NA angle, U1/NA distance, U1/SN angle, L1/NB distance, L1/MP angle before and after treatment in implant Anchorage group and tooth extraction group. There was no significant difference in U1/L1 angle, soft tissue index NLA angle, UL-EP distance and LL-EP distance between the two groups (P0.05). The average treatment time was 15.8 鹵2.25 months in the implant Anchorage group and 19.6 鹵3.40 months in the tooth extraction group, and the average treatment time in the two groups was 15.8 鹵2.25 months in the implant Anchorage group and 19.6 鹵3.40 months in the extraction group. The difference between the two groups was statistically significant (P0.05). Conclusion: microimplant Anchorage combined with segmental arch technique is an effective method for the treatment of mild to moderate congestion. There was no significant difference between the treatment effect and the second premolar extraction. Compared with the traditional dental extraction treatment, the clinical treatment time is greatly shortened by micro-implant Anchorage combined with segment arch distal movement of upper and lower dentition.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：R783.5
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