桩道内注射技术用于桩核修复硅橡胶印模的体外实验研究
发布时间：2018-11-03 16:37
【摘要】：目的 通过体外桩道模型观察四种临床常见印模方法对硅橡胶桩道印模质量的影响，研究结果为临床印模方法的选择提供可靠依据，提高临床印模质量，完善修复体制作及相关临床治疗，同时为改进硅橡胶注射枪设计提供实验参考。 方法 制作体外桩道模型，模拟人体口腔温度、不同根管数目的条件。采用硅橡胶专用枪注射法（A组）、硅橡胶专用枪配合机动螺旋输送器导入注射法（B组）、硅橡胶专用枪配合手动螺旋输送器导入注射法（C组）、根管桩道内注射法（D组）共四种方法制取硅橡胶桩道印模，，按每种方法各取30个单根管桩道印模和30个双根管桩道印模,共240个。观察桩道印模是否有缺损以及桩道印模表面气泡数量、大小及分布位置；并用游标卡尺测量印模缺损、气泡的直径，同时拍照后输入计算机，通过Vixwin Pro软件矫正测量值，计算出印模缺损的面积和印模表面气泡面积，根据印模缺损和气泡总面积的大小评定四级标准：优秀、良好、合格和不合格。使用SPSS13.0统计软件进行数据分析：1）单根管桩道印模与双根管桩道印模成功率比较采用非参数检验—Kruskal-Wallis H检验；2）四种桩道印模方法成功率比较采用非参数检验—Kruskal-Wallis H检验；四组之间存在差别则进行四个独立样本两两比较的Nemenyi法检验；3）四种桩道印模方法制取不同根管数目桩道印模成功率的比较采用非参数检验—Kruskal-Wallis H检验；4）四种桩道印模方法桩核产生气泡的数目、大小及分布的比较采用非参数检验—Kruskal-Wallis H检验。P0.05时认为差异有统计学意义。 结果 1.单根管桩道印模成功率明显高于双根管组（P0.05）。 2.四种桩道印模方法对桩道印模成功率有影响，且D组方法明显优于A、B、C三组（P0.05）；D组与A组、D组与B组、D组与C组间有显著性差异（P0.05），C组与A组、B组与A组间存在显著性差异（P0.05），C组与B组间无统计学差异（P0.05）。 3.四种硅橡胶桩道印模方法对印模表面产生气泡的数量有显著影响，其中根管桩道内注射法产生的气泡最少（P0.05）；四种桩道印模方法出现的气泡主要位于桩道印模根尖1/3（P0.05）；四种硅橡胶桩道印模方法对印模表面产生气泡的大小无影响（P0.05）。 结论 1.不同方法制取硅橡胶桩道印模时，单根管桩道印模成功率明显高于双根管桩道印模。 2.根管桩道内注射法用于硅橡胶桩道印模时成功率最高；其次为硅橡胶专用枪配合螺旋输送器导入注射法；单独采用硅橡胶专用枪注射法效果最差。 3.硅橡胶专用枪配合机动螺旋输送器导入注射法与配合手动螺旋输送器导入注射法效果无显著性差异。 4.四种硅橡胶桩道印模方法对印模表面产生的气泡数量有显著影响，其中根管桩道内注射法产生的气泡最少。 5.四种桩道印模方法出现的气泡主要位于桩道印模根尖1/3。 6.四种硅橡胶桩道印模方法对印模表面产生的气泡大小无影响。
[Abstract]:Purpose The influence of four kinds of clinical common impression methods on the quality of the impression of silicone rubber piles was observed by means of external pile-channel model. The research results provide a reliable basis for the selection of clinical impression method, improve the quality of clinical impression, perfect the repair system and relevant clinical practice. Treatment, at the same time providing an experiment to improve the design of silicone rubber injection gun REFERENCES The method comprises the following steps of: manufacturing an in-vitro pile channel model, simulating the oral temperature of the human body, Conditions for the number of the same root tubes. The silicone rubber special gun injection method (group A), the silicone rubber special gun and the motorized screw conveyor are introduced into the injection method (group B), and the silicone rubber special gun is matched with the manual screw conveyor guide. Four methods of injection molding (group C), injection method (group D) in root canal and injection method (group D) were used to prepare the impression of silicon rubber pile, and 30 single pipe piles and 30 double pipe piles were taken in each method. A total of 240 impressions were obtained. Observe whether the impression of the pile is defective and the number, size and distribution of air bubbles on the surface of the stamp surface; measure the diameter of the impression defect and air bubble with a vernier caliper, and then input the computer after taking pictures, and enter the computer through Vixwin Pr o software corrects the measured value, calculates the area of the impression defect and the surface bubble area of the stamp, and evaluates the fourth grade according to the size of the total area of the impression defect and the air bubble: excellent, good, Good, qualified and unqualified. SPSS 13.0 statistical software was used for data analysis: 1) The success ratio of single pipe pile track stamp and double-root canal stamp was tested by non-test method (Kruskal-Wallis H test; 2) The success rate of four-channel impression method was compared with the non-test method, Kruskal-W. allis h test; differences between the four groups were tested by the Nemenyi method comparing the two comparisons of four independent samples; 3) the comparison of the success ratio of the number of piles with different root canals was tested by four methods of pile-channel impression, using Kruskal-Wallis H test; and 4) four kinds of pile-channel impression method piles. The comparison of the number, size, and distribution of bubbles in the core adopts the non-exponential test method, Kruskal-W. allis h test. p0.05 was considered Discrepancy Statistical significance. Results 1. Success rate of single pipe pile test There were significant differences between group D and group A, group D and group B, group D and group C. There was significant difference between group C and group A, group B and group A (P0.05). There was no statistical difference between group B and group B (P0.05). It is mainly located in 1/ 3 (P0.05) of the root tip of the pile. die table There was no influence on the size of bubble generation (P0.05). Conclusion 1. The silicone rubber pile was prepared by different methods. The success rate of single pipe pile is obviously higher than that of double-root canal. import injection method for screw conveyer; single use silicon rubber special gun injection method effect worst. 3. silicone rubber special gun cooperate with mobile snail There is no significant difference between the introduction injection method of the rotary conveyor and the introduction of the manual screw conveyor. There is a significant effect on the number of bubbles generated on the surface of the impression, in which the root canal is produced by injection molding The bubble of the raw air is fewest. 5. The air bubbles appearing in the four kinds of pile-channel impression methods are mainly located in
【学位授予单位】：暨南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.3
本文编号：2308336
[Abstract]:Purpose The influence of four kinds of clinical common impression methods on the quality of the impression of silicone rubber piles was observed by means of external pile-channel model. The research results provide a reliable basis for the selection of clinical impression method, improve the quality of clinical impression, perfect the repair system and relevant clinical practice. Treatment, at the same time providing an experiment to improve the design of silicone rubber injection gun REFERENCES The method comprises the following steps of: manufacturing an in-vitro pile channel model, simulating the oral temperature of the human body, Conditions for the number of the same root tubes. The silicone rubber special gun injection method (group A), the silicone rubber special gun and the motorized screw conveyor are introduced into the injection method (group B), and the silicone rubber special gun is matched with the manual screw conveyor guide. Four methods of injection molding (group C), injection method (group D) in root canal and injection method (group D) were used to prepare the impression of silicon rubber pile, and 30 single pipe piles and 30 double pipe piles were taken in each method. A total of 240 impressions were obtained. Observe whether the impression of the pile is defective and the number, size and distribution of air bubbles on the surface of the stamp surface; measure the diameter of the impression defect and air bubble with a vernier caliper, and then input the computer after taking pictures, and enter the computer through Vixwin Pr o software corrects the measured value, calculates the area of the impression defect and the surface bubble area of the stamp, and evaluates the fourth grade according to the size of the total area of the impression defect and the air bubble: excellent, good, Good, qualified and unqualified. SPSS 13.0 statistical software was used for data analysis: 1) The success ratio of single pipe pile track stamp and double-root canal stamp was tested by non-test method (Kruskal-Wallis H test; 2) The success rate of four-channel impression method was compared with the non-test method, Kruskal-W. allis h test; differences between the four groups were tested by the Nemenyi method comparing the two comparisons of four independent samples; 3) the comparison of the success ratio of the number of piles with different root canals was tested by four methods of pile-channel impression, using Kruskal-Wallis H test; and 4) four kinds of pile-channel impression method piles. The comparison of the number, size, and distribution of bubbles in the core adopts the non-exponential test method, Kruskal-W. allis h test. p0.05 was considered Discrepancy Statistical significance. Results 1. Success rate of single pipe pile test There were significant differences between group D and group A, group D and group B, group D and group C. There was significant difference between group C and group A, group B and group A (P0.05). There was no statistical difference between group B and group B (P0.05). It is mainly located in 1/ 3 (P0.05) of the root tip of the pile. die table There was no influence on the size of bubble generation (P0.05). Conclusion 1. The silicone rubber pile was prepared by different methods. The success rate of single pipe pile is obviously higher than that of double-root canal. import injection method for screw conveyer; single use silicon rubber special gun injection method effect worst. 3. silicone rubber special gun cooperate with mobile snail There is no significant difference between the introduction injection method of the rotary conveyor and the introduction of the manual screw conveyor. There is a significant effect on the number of bubbles generated on the surface of the impression, in which the root canal is produced by injection molding The bubble of the raw air is fewest. 5. The air bubbles appearing in the four kinds of pile-channel impression methods are mainly located in
【学位授予单位】：暨南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.3
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相关期刊论文 前3条
1 刘利霞;郑东翔;高卫民;;琼脂印模材料对不同聚合度铸造桩适合性的影响[J];北京口腔医学;2008年06期
2 余燕玲;徐淑兰;;硅橡胶加牙胶尖印模提高铸造桩核适合性的对照研究[J];广东牙病防治;2007年02期
3 马轩祥;;残冠残根保存修复的概况与进展[J];中华口腔医学杂志;2006年06期
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