Int J Stomatol

Inter J Stomatol ›› 2011, Vol. 38 ›› Issue (4): 392-394.doi: 10.3969/j.issn.1673-5749.2011.04.006

Previous Articles     Next Articles

Changes in alveolar bone thickness due to retraction of lower anterior teeth

Li Jialing1, Li Xiaobing2, Li Jiayuan3.   

  1. 1. Dept. of Orthodontics, The Affiliated Hospital of Stomatology, Medical College of Nanjing University, Nanjing 210008, China; 2. Dept. of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; 3. Dept. of Epidemiology, West China School of Public Health, Sichuan University, Chengdu 610041, China
  • Received:2010-09-11 Revised:2011-02-13 Online:2011-07-20 Published:2011-07-20

RichHTML

11

PDF (PC)

590

Abstract:

Objective To investigate the changes of alveolar bone thickness after retraction of lower incisor. Methods 47 patients of slight crowding and four first premolars extracted for orthodontics purpose, were collected as study samples. Their pre- and post treatment cephalometric films were analyzed by blind method for hard and soft tissue changes and remodeling of anterior alveolar after treatment. Paired t test was used to evaluate the hard and soft tissue changes with SPSS 13.0 software package. Results The cephalometric values demonstrated that: Lower incisor alveolar thickness showed a significant decrease after incisor retraction. From sagittal view, the lingual cortical plate thickness reduced more than the labial one; from vertical view, alveolar bone thickness at the apical level decreased more than that at the coronal level. Conclusion The absorption of alveolar bone exceed the apposition during lower incisor retraction, so that the alveolar thickness decreased significantly. The labial and lingual cortial plates at the level of incisor apex may represent the anatomic limits of tooth movements which help doctors to make treatment decisions.

Key words: alveolar thickness, extraction, incisor, cephalometry


TrendMD: 
[1] Wang Renyi,Zhao Chengzhi,Pan Jian.. Research progress on the effects of prophylactic antibiotics on postoperative complications during the perioperative period of tooth extraction [J]. Int J Stomatol, 2023, 50(5): 558-565.
[2] Liu Xiaolin,Ren Qun,Gao Xiaozhe,Bai Jiuping,Wang Yu,Li Xiangjun.. Clinical data analysis of 458 cases of supernumerary teeth in the upper incisor area [J]. Int J Stomatol, 2023, 50(1): 61-65.
[3] Yin Maoyun,Zhang Yi,Hu Min.. Research progress on the effect of orthodontic extraction on upper airway [J]. Int J Stomatol, 2022, 49(5): 607-613.
[4] Pang Yu,Liu Xian,Wang Liao. Application of digital template in the extraction of embedded supernumerary tooth [J]. Int J Stomatol, 2022, 49(4): 448-452.
[5] Liu Lijia,Mao Jing,Long Huan,Pu Yalong,Wang Jun. Research progress on two-dimensional and three-dimensional cephalometric automatic landmarking [J]. Int J Stomatol, 2022, 49(1): 100-108.
[6] Wu Chunlan,Tang Hua,Chen Jun. Alveolar bone morphology of anterior teeth areas in patients with high-angle skeletal Class Ⅱ open bite [J]. Int J Stomatol, 2021, 48(4): 426-432.
[7] Hu Wenjie. Related problems in clinical practice of alveolar ridge preservation [J]. Int J Stomatol, 2021, 48(3): 249-259.
[8] Zhang Zihan,Xiong Xin,Wang Jun. Research status and application development of three-dimensional cephalometry [J]. Int J Stomatol, 2020, 47(6): 739-744.
[9] Chen Bin,Xu Rongrong,Zhang Jiading,Yan Fuhua. The retention of severe periodontitis-involved tooth [J]. Int J Stomatol, 2020, 47(2): 125-130.
[10] Weilin Pan,Yubin Cao,Chang Liu,Jiyuan Liu,Chunjie Li,Jian Pan,Chengge Hua. Flap design associated pain after the extraction of mandibular third molars: a systematic review and Meta-analysis [J]. Inter J Stomatol, 2019, 46(2): 142-148.
[11] Tiancheng Li,Kai Xia,Shujuan Zou,Jun Liu. Effect of tooth extraction for the orthodontic treatment of the upper airway: a systematic review [J]. Inter J Stomatol, 2019, 46(2): 156-165.
[12] Yuhao Wang, Dianri Wang, Jian. Pan. Lingual nerve injury in the tooth extraction [J]. Inter J Stomatol, 2018, 45(5): 590-596.
[13] Ma Quanquan, Cai Xiaoxiao.. Current status of immediate implant placement and provisionalization in esthetics zone [J]. Inter J Stomatol, 2017, 44(6): 731-736.
[14] Chen Yaqun, Xie Yijia, Hu Zhou, Zhao Qing. Research progress on the relationship between the floor of maxillary sinus and orthodontic tooth movement [J]. Inter J Stomatol, 2017, 44(5): 550-554.
[15] Zhang Rui1, Zhang Lingge1, Li Xihong1, Li Rui2. Influence of improved triangular flap on postoperative complications after mandibular third molar removal and its clinical application [J]. Inter J Stomatol, 2017, 44(2): 153-156.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] . [J]. Foreign Med Sci: Stomatol, 1999, 26(06): .
[2] . [J]. Foreign Med Sci: Stomatol, 1999, 26(06): .
[3] . [J]. Foreign Med Sci: Stomatol, 1999, 26(06): .
[4] . [J]. Foreign Med Sci: Stomatol, 1999, 26(06): .
[5] . [J]. Foreign Med Sci: Stomatol, 1999, 26(05): .
[6] . [J]. Foreign Med Sci: Stomatol, 1999, 26(05): .
[7] . [J]. Foreign Med Sci: Stomatol, 1999, 26(04): .
[8] . [J]. Foreign Med Sci: Stomatol, 1999, 26(04): .
[9] . [J]. Foreign Med Sci: Stomatol, 2004, 31(02): 126 -128 .
[10] . [J]. Inter J Stomatol, 2008, 35(S1): .