中华口腔正畸学杂志
中華口腔正畸學雜誌
중화구강정기학잡지
CHINESE JOURNAL OF ORTHODONTICS
2010年
4期
197-200
,共4页
马志贵%房兵%毛丽霞%夏韫晖
馬誌貴%房兵%毛麗霞%夏韞暉
마지귀%방병%모려하%하운휘
CBCT%牙周病%牙槽骨密度%松动度%正畸牙移动
CBCT%牙週病%牙槽骨密度%鬆動度%正畸牙移動
CBCT%아주병%아조골밀도%송동도%정기아이동
CBCT%Periodontal disease%Dental alveolar bone density%Tooth mobility%Tooth movement
目的 牙周病正畸治疗中,在严格控制炎症和正畸力的情况下,牙齿松动度仍然增加,本研究旨在从牙槽骨骨密度变化方面对其机制进行初步探讨.方法 选择牙周病正畸治疗者20例,牙周健康正畸者为对照组21例,应用锥束CT(cone beam computed tomography,CBCT),在正畸治疗的第一期排齐阶段前后拍摄,使用头影测量方法原理,在CBCT图像的选定截面定点,对上下颌前牙区牙槽间隔骨密度进行测量,同时记录相关的临床牙周指标,采用SPSSl6.0软件包分析,以配对t检验和独立样本t检验比较两组内和组间的牙槽骨密度的差异,Pearson相关分析评价骨密度与临床指标间的相关性.结果 治疗前牙周病组和对照组骨密度无明显差别(P＞0.05),治疗后牙槽骨密度降低量为牙周病组(-18.94±30.81)显著大于对照组(-11.35±31.55)(P＜0.05),牙周病组牙松动度有明显增加(P＜0.05).结论 静止期牙周病牙槽骨在正畸力刺激下,牙槽骨密度明显降低.牙槽骨密度降低与牙齿松动度增加有显著相关,推测松动度增加可能由于骨密度降低引起,这方面值得进一步研究.
目的 牙週病正畸治療中,在嚴格控製炎癥和正畸力的情況下,牙齒鬆動度仍然增加,本研究旨在從牙槽骨骨密度變化方麵對其機製進行初步探討.方法 選擇牙週病正畸治療者20例,牙週健康正畸者為對照組21例,應用錐束CT(cone beam computed tomography,CBCT),在正畸治療的第一期排齊階段前後拍攝,使用頭影測量方法原理,在CBCT圖像的選定截麵定點,對上下頜前牙區牙槽間隔骨密度進行測量,同時記錄相關的臨床牙週指標,採用SPSSl6.0軟件包分析,以配對t檢驗和獨立樣本t檢驗比較兩組內和組間的牙槽骨密度的差異,Pearson相關分析評價骨密度與臨床指標間的相關性.結果 治療前牙週病組和對照組骨密度無明顯差彆(P＞0.05),治療後牙槽骨密度降低量為牙週病組(-18.94±30.81)顯著大于對照組(-11.35±31.55)(P＜0.05),牙週病組牙鬆動度有明顯增加(P＜0.05).結論 靜止期牙週病牙槽骨在正畸力刺激下,牙槽骨密度明顯降低.牙槽骨密度降低與牙齒鬆動度增加有顯著相關,推測鬆動度增加可能由于骨密度降低引起,這方麵值得進一步研究.
목적 아주병정기치료중,재엄격공제염증화정기력적정황하,아치송동도잉연증가,본연구지재종아조골골밀도변화방면대기궤제진행초보탐토.방법 선택아주병정기치료자20례,아주건강정기자위대조조21례,응용추속CT(cone beam computed tomography,CBCT),재정기치료적제일기배제계단전후박섭,사용두영측량방법원리,재CBCT도상적선정절면정점,대상하합전아구아조간격골밀도진행측량,동시기록상관적림상아주지표,채용SPSSl6.0연건포분석,이배대t검험화독립양본t검험비교량조내화조간적아조골밀도적차이,Pearson상관분석평개골밀도여림상지표간적상관성.결과 치료전아주병조화대조조골밀도무명현차별(P＞0.05),치료후아조골밀도강저량위아주병조(-18.94±30.81)현저대우대조조(-11.35±31.55)(P＜0.05),아주병조아송동도유명현증가(P＜0.05).결론 정지기아주병아조골재정기력자격하,아조골밀도명현강저.아조골밀도강저여아치송동도증가유현저상관,추측송동도증가가능유우골밀도강저인기,저방면치득진일보연구.
Objective To analyze the phenomenon that tooth mobility remarkable increased under a prerequisite for tooth movement in a non-active condition of periodontal disease, alveolar bone density was preliminarily investigated. Methods 20 patients with periodontal disease (group 1) and 21 patients with healthy periodontal tissue (group 2) were selected. CBCT (cone beam computed tomography) scanning were taken before and after the first stage of orthodontic treatment. The data were analyzed by SPSS16. 0 software package for paired t test and independent-samples t test, and Pearson correlation coefficient was used to study the relationships between alveolar bone density and clinical parameters. Results There were no significant differences in alveolar bone density between two groups before treatment (P＞0. 05); After treatment, bone density showed a statistically significant decrease in two groups, and the reduction was greater in group 1 than that in group 2 (P＜0. 05 ). Tooth mobility in group 1 showed a remarkable increase after treatment (P＜0. 05 ).Conclusions The alveolar bone density decreased through tooth movement in a non-active periodontal condition, and density reduction had a significant positive correlation with the increase of tooth mobility. The increase of tooth mobility may result from the reduction of alveolar density, which needs further study.
