Changes of hard tissues in patients with functional and skeletal Angel Class Ⅲ malocclusion after FRⅢ appliance treatment

Abstract

Abstract: PURPOSE: To compare changes of hard tissues before and after treatment of functional and skeletal Angle Class Ⅲ malocclusion with FRⅢ appliance. METHODS: Thirty patients with functional and skeletal Angel Class Ⅲ malocclusion were selected and treated with FRⅢ appliance. SPSS 22.0 software package was performed for statistical analysis. RESULTS: After treatment, there was no significant difference in SNA, S-Ptm, ANS-Ptm and Go-Po (P>0.05). ANB, ANS-Me, ANS-Me /N-Me were increased significantly (P<0.01). SNB, L1-NB, L1-MP were decreased significantly (P<0.05). MP-FH, Y axis, U1-NA, U1-NA (mm), U1-SN were increased significantly (P<0.05). CONCLUSIONS: After FRⅢ appliance treatment of Angel Class Ⅲ malocclusion, the position of mandible may rotate clockwise downward and backward, with retrusion of the lower incisors and protrusion of the upper incisors.

Key words: FRⅢ, appliance, Angle Class Ⅲ, malocclusion, Crossbite, Cephalometric analysis

CLC Number:

R783.5

ZHANG Nan, WANG Sun, ZHENG Wei, CHEN Min, SHEN Yu-feng, YAN Hong-juan. Changes of hard tissues in patients with functional and skeletal Angel Class Ⅲ malocclusion after FRⅢ appliance treatment[J]. Shanghai Journal of Stomatology, 2016, 25(6): 725-728.

References

[1] Kirkpatrick Andrew W, Ball Chad G, D'Amours Scott K, et al. Acute resuscitation of the unstable adult trauma patient: bedside diagnosis and therapy [J]. Can J Surg, 2008, 51(1): 51-69.
[2] 叶金梅, 王洪涛, 邓利琴, 等. FRⅢ矫治功能性Ⅲ类错畸形的颌面分析 [J].中国美容医学, 2012, 21(4): 633-635.
[3] Treatment effects of Fränkel functional regulator III in children with class III malocclusions [J]. Am J Orthod Dentofacial Orthod, 2004, 125(3): 294-301.
[4] 曾祥龙. 爱丁堡皇家外科学院口腔正畸专业考试病例精选 [M]. 北京: 北京大学医学出版社, 2007: 171-176.
[5] Chan EK, Soh J, Petocz P, et al. Esthetic evaluation of Asian-Chinese profiles from a white perspective[J]. Am J Orthod Dentofacial Orthop, 2008, 133(4): 532-538.
[6] 傅民魁. 口腔正畸专科教程 [M]. 北京: 人民卫生出版社, 2007: 282.
[7] 王爱华. FR功能矫治器的研究与临床应用进展 [J].大连医科大学学报, 2011, 33(1): 90-93.
[8] MaNamara JA Jr, Huge SA. The functional regulator (FR-3) of Fränkel [J]. AM J Orthod Dentofacial Orthop, 1985, 88(5): 409-424.
[9] Firatli S, Ulgen M. The effects of the FR-3 appliance on the transversal dimension [J]. Am J Orthod Dentofacial Orthop, 1996, 110(1): 55-60.
[10] Hiyama S, Suda N, Ishii-Suzuki M. Effects of maxillary protraction on craniofacial structures and upper-airway dimension [J]. Angle Orthod, 2002, 72(1): 43-47.
[11] Tollaro I, Baccetti T, Franchi L. Craniofacial changes induced by early functional treatment of Class Ⅲ malocclusion [J]. Am J Orthod Dentofacial Orthop, 1996, 109(3): 310-318.
[12] 孙嫱, 刘英群, 吕晶, 等. 矫治乳前牙反对恒牙胚及颌骨位置变化影响的研究 [J].口腔医学, 2009, 29(6): 288-290.
[13] Levin AS, McNamara JA, Jr Franchi L, et al. Short-term and long-term treatment outcomes with the FR-3 appliance of Fr?nkel [J]. Am J Orthod Dentofacial Orthop, 2008, 134(4): 513-524.
[14] 张锡忠. 安氏Ⅲ类错的诊断及治疗 [J]. 医学综述, 2009, 15(19): 2965-2968.
[15] 邹敏, 李敏, 毛新霞. FR-Ⅲ功能调节器矫治59例儿童前牙反软硬组织形态的变化研究 [J]. 口腔医学, 2010, 30(9): 547-550.
[16] 吴兰. FRⅢ型矫治器在早期前牙反中的应用[J]. 大家健康, 2013, 7(2): 78-79.
[17] Miethke RR, Lindenau S, Dietrich K. The effect of Frankel's function regulator type Ⅲ on the apical base[J]. Eur J Orthod, 2003, 25(3): 311-318.