中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (21): 3440-3444.doi: 10.3969/j.issn.2095-4344.2015.21.030

• 生物材料临床实践 clinical practice of biomaterials • 上一篇    

正畸牙移动对牙槽骨形态及骨密度的影响

张国华   

  1. 上海交通大学医学院附属仁济医院口腔科,上海市  200127
  • 出版日期:2015-05-21 发布日期:2015-05-21
  • 作者简介:张国华,男,1973年生,汉族,上海市人,硕士,主要从事口腔正畸方面的研究。

Influence of orthodontic tooth movement on alveolar bone morphology and bone mineral density 

Zhang Guo-hua   

  1. Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
  • Online:2015-05-21 Published:2015-05-21
  • About author:Zhang Guo-hua, Master, Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China

摘要:

背景:在正畸治疗过程中部分患者出现了牙齿松动、牙槽骨形态异常情况,甚至在一定程度上牙周疾病的概率有所增加。
目的:分析正畸牙移动对牙槽骨形态及骨密度的影响。
方法:纳入62例正畸治疗患者,其中男34例,女28例,年龄18-30岁,正畸治疗6个月后,利用三维锥形束CT机扫描患者上、下颌骨前牙区、后牙区、中切牙牙槽区,以及两侧中切牙与侧切牙牙槽间隔的骨密度。
结果与结论:正畸治疗6个月后,所有患者牙齿坚固,未见异常动度,牙龈颜色呈现健康的粉红色,质地坚韧而不活动,探诊时无出血情况。正畸治疗前,上颌不同牙槽间隔牙槽骨密度比较差异无显著性意义(P > 0.05),治疗6个月后比较差异也无显著性意义(P > 0.05),但同一牙槽间隔正畸治疗6个月后的骨密度低于治疗前(P < 0.05);下颌牙槽骨密度变化与上颌一致;上颌牙槽骨正畸治疗前后的骨密度均高于下颌牙槽骨  (P < 0.05)。表明正畸治疗修复后可能出现下颌牙槽骨密度降低高于上颌牙槽骨的情况,但对整体正畸效果无明显影响,不影响牙槽骨形态和健康状况。

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

关键词: 生物材料, 口腔生物材料, 正畸, 牙槽骨, 植骨区, 形态, 骨密度

Abstract:

BACKGROUND: Some patients appear to have loose teeth and alveolar abnormalities during orthodontic treatment, and to some extent, the probability of periodontal disease has increased.
OBJECTIVE: To analyze the effects of orthodontic tooth movement on alveolar bone morphology and bone mineral density.
METHODS: Sixty-two patients undergoing orthodontic treatment were enrolled, including 34 males and 28 female, aged from 16 to 30 years. After 6 months of orthodontic treatment, cone-beam CT scanning was used to detect the bone mineral density in anterior tooth, posterior tooth and incisor alveolar regions of the maxilla and mandible as well as the alveolar space between bilateral central incisors and lateral incisors.
RESULTS AND CONCLUSION: After 6 months of orthodontic treatment, all the patients had strong teeth with no abnormal mobility. The gums were healthy and pink, and the texture was tough and inactive, with no bleeding during probing. There was no difference in the bone mineral density of maxillary alveolar bone with different 
alveolar spaces before and 6 months after orthodontic treatment (P > 0.05). However, the bone mineral density in the same alveolar space was reduced significantly after 6 months of treatment (P < 0.05). The bone mineral density of the maxillary and mandibular alveolar bone was varied consistently. In addition, the bone mineral density of the maxillary alveolar bone was significantly higher than that of the mandibular alveolar bone both before and after orthodontic treatment (P < 0.05). These findings indicate that under orthodontic treatment, the bone mineral density of the maxillary alveolar bone may be higher than that of the mandibular alveolar bone, but there is no effect on orthodontic results as well as the morphology and health of alveolar bone.

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

Key words: Orthodontic Extrusion, Alveolar Bone Loss, Bone Density

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