种植支抗治疗露龈笑过程中切牙牙根吸收的CBCT检测

Abstract

Abstract: Objective　To measure the incisor root resorption quantitatively by CBCT in the treatment of gummy smile by using implant anchorage. Methods　The straight wire appliance technology was used for 11 cases. Mini-screw implants were inserted between the central and lateral incisors.100 g force was used for the intrusion of incisors. Treatment stopped and maintainence began when the gingival margin flushed with smile line. CBCT images of all patients were taken immediately before and after intrusion. The measurement of the root length was from the longest axis on the saggital plane. Results　Significant improvement of gummy smile was found in all cases, and the average decrease was 2.47±0.64mm.The intrusion of incisors was 2.81±0.62mm.CBCT showed that the resorption was more in central incisors than that in lateral incisors. Conclusions　Root resorption occurred in the treatment of gummy smile by using implant anchorage, and CBCT can measure root resorption quantitatively.

Key words: implant anchorage, gummy smile , root resorption, CBCT

CLC Number:

R783.5

References

[1]麦志辉,卢红飞,黄晓,等.微种植体支抗压低上前牙治疗露龈笑[J].中华口腔医学研究杂志（电子版,2012,6(6):520-525
[2]张志伟,张月兰,邱晓霞.微螺钉支抗改善露龈笑临床分析[J].中国口腔种植学杂志,2010,15(4):182-189
[3]Polat-Ozsoy O,Arman-Ozcirpici A,,Veziroglu F.Miniscrews for upper incisor intrusion[J].Eur J Orthod,2009,31(4):412-416
[4]Deguchi T,Murakami T,Kuroda S,et al.Comparison of the intrusion effects on the maxillary incisors between implant anchorage and J-hook headgear[J].Am J Orthod Dentofacial Orthop,2008,133(5):654-660
[5]黄明悦，张俭.正畸治疗中使用种植支抗改善患者露龈笑的临床疗效分析[J].吉林医学,2013,34(14):2699-2670
[6]Li W,Chen F,Zhang F,et al.Volumetric measurement of root resorption following molar mini-screw implant intrusion using cone beam computed tomography[J].PLoS One,2013,8(4):e60962-
[7]Harris EF.Root resorption during orthodontic therapy[J].Semin Orthod,2000,6(3):183-194
[8] Brezniak N，Wasserstein A.Root resorption after orthodonti
[9]treatment：Part 1.Literature review[J].Am J Orthod Dentofacial Orthop,1993,103(1):62-
[10]Lupi JE,Handelman CS,Sadowsky C.Prevalence and severity of apical root resorption and alveolar bone loss in orthodontically treated adults[J].Am J Orthod Dentofacial Orthop,1996,109(1):28-37
[11]卢嘉静，祁涛，葛振林.微型种植体支抗压低犬上切牙的牙根表面扫描电镜观察[J].上海口腔医学,2009,18(4):406-410
[12]Kalra V,Burstone CJ,Nanda R.Effects of a fixed magnetic appliance on the dentofacial complex[J].Am J Orthod Dentofacial Orthop,1989,95(6):467-478
[13]Sameshima GT,Asgarifar KO.Assessment of Root Resorption and Root Shape: Periapical vs Panoramic Films[J].Angle Orthod,2001,71(3):185-189
[14]余丽霞，何姝姝，陈嵩,等.全景及根尖片对正畸相关牙根吸收诊断准确性的研究[J].华西口腔医学杂志,2012,30(2):169-172
[15]Leite V,Conti AC,Navarro R,et al.Comparison of root resorption between self-ligating and conventional preadjusted brackets using cone-beam computed tomography[J].Angle Orthod,2012,82(6):1078-1082
[16]Jiang RP,McDonald JP,Fu MK.Root resorption before and after orthodontic treatment: a clinical study of contributory factors[J].Eur J Orthod,2010,32(6):693-697
[17]李新贵，董志强，刘月华.正畸牙移动早期牙根吸收的临床研究[J].中华口腔正畸学杂志,2011,18(2):84-88

Measurement of incisor root resorption by CBCT in treatment of gummy smile using implant anchorage

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