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作 者:赵姝亚[1] 王旭霞[2] 刘宛鑫[1] 董瑞[1] 李静[1] 张君[1]
机构地区:[1]山东大学口腔医学院正畸科·山东省口腔生物医学重点实验室,济南250012 [2]山东大学口腔医学院口腔颌面外科,济南250012
出 处:《中华口腔医学杂志》2013年第9期523-528,共6页Chinese Journal of Stomatology
基 金:山东省科技发展计划(2009GG20002042)
摘 要:目的比较抗代谢性骨病药物帕米膦酸钠和伊班膦酸钠对大鼠正畸牙根吸收的影响,为正畸临床预防牙根吸收提供参考。方法选择72只6周龄无特定病原体(specific pathogen free,SPF)级健康雌性Wistar大鼠建立正畸牙齿移动动物模型,按随机数字表随机分为对照组、帕米膦酸钠组与伊班膦酸钠组,每组24只,分别注射生理盐水(0.9%NaCl溶液)、0.5mmol/L帕米膦酸钠溶液和0.5mmol/L伊班膦酸钠溶液各50μl。实验第3、7、14天时每组分别处死8只大鼠行组织切片观察,进行破牙骨质细胞计数、破骨细胞分化因子(osteoclast differentiation factor,ODF)检测及牙根吸收指数分析,使用PASW Statistics18软件进行单因素方差分析和LSD比较。结果各组第3天破牙骨质细胞数、ODF表达及牙根吸收指数差异均无统计学意义(P〉0.05);第7和14天破牙骨质细胞数、ODF表达及牙根吸收指数帕米膦酸钠组[(2.675±0.002)个、(0.1683±0.0007)、(0.103±0.003)和(3.886±0.048)个、(0.1873±0.0014)、(0.283±0.001)]和伊班膦酸钠组[(2.601±0.001)个、(0.1634±0.0010)、(0.099±0.002)和(3.754±0.019)个、(0.1818±0.0016)、(0.281±0.001)]均显著小于相同时间点对照组[(2.810±0.001)个、(0.1792_-±0.0008)、(0.120±0.001)和(4.800±0.001)个、(0.2060±0.0007)、(0.401±0.001)](P〈0.05);相同时间点帕米膦酸钠与伊班膦酸钠组各指标的组间差异均无统计学意义(P〉0.05)。结论帕米膦酸钠与伊班膦酸钠对大鼠正畸牙根吸收的影响基本一致,均可减轻牙根吸收的程度。Objective To compare the effects of pamidronate and ibandronate on orthodontic root resorption. Methods Seventy-two 6-week-old female specific pathogen free(SPF) Wistar rats were selected to establish models for orthodontic tooth movement. The rats were randomly divided into three groups: the control group( C group ), pamidronate group ( Pm group ) and ibandronate group ( Ib group ). 0. 9% normal saline,0. 5 mmol/L pamidronate and O. 5 mmol/L ibandronate were injected every 3 days. The rats were executed in batch on the 3rd ,Tth and 14th day to make tissue sections. All statistical analysis was performed using the PASW Statistics 18 software package. Results On the 7th and 14th day, the amount of cementoclast, the expression of osteoclast differentiation factor (ODF) and root resorption index were significantly lower in Pm group[the 7th day: (2. 675 ±0. 002) , (0. 1683 ±0. 0007), (0. 103-±0. 003 ) ;the 14th day: (3. 886 ±0. 048), (0. 1873 ±0. 0014), (0. 283 ±0. 001 ) ] and Ib groups[the 7th day: (2. 601 ± 0.001),(0.1634±0.0010),(0.099±0.002); the 14th day: (3.754 ±0.019),(0.1818 ±0.0016), (0. 281 ± 0. 001 ) ] than in C group[ the 7th day: (2. 810 ± 0. 001 ), (0. 1792 ± 0. 0008 ), (0. 120 ± 0. 001 ) ; the 14th day : (4. 800 ± 0. 001 ), ( 0. 2060 ± 0. 0007 ), ( 0. 401 ± 0. 001 ) J ( P 〈 0. 05 ). However, no significant difference was found between Pm and Ib groups on the 3rd, 7th and 14th day(P 〉 0. 05 ). Conclusions Both pamidronate and ibandronate could inhibit orthodontic root resorption.
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