|
|||||
|
|
| 冠折年轻恒牙根管治疗后不同修复方法的抗折强度研究 | |
| 引用本文： | 王美艳,马晓平,崔玉兰,王旭,张钊. 冠折年轻恒牙根管治疗后不同修复方法的抗折强度研究[J]. 口腔颌面修复学杂志, 2021, 22(1): 38-42. DOI: 10.19748/j.cn.kqxf.1009-3761.2021.01.008 |
| 作者姓名： | 王美艳 马晓平 崔玉兰 王旭 张钊 |
| 作者单位： | 承德护理职业学院医学系 口腔教研室 河北067000;河北医科大学口腔医学院·口腔医院,河北省口腔医学重点实验室,河北省口腔疾病临床医学研究中心 河北 050017;河北医科大学口腔医学院·口腔医院,河北省口腔医学重点实验室,河北省口腔疾病临床医学研究中心 河北 050017;河北医科大学口腔医学院·口腔医院,河北省口腔医学重点实验室,河北省口腔疾病临床医学研究中心 河北 050017;河北医科大学口腔医学院·口腔医院,河北省口腔医学重点实验室,河北省口腔疾病临床医学研究中心 河北 050017 |
| 基金项目： | 河北省卫生健康委员会医学科学研究课题计划指令性课题 |
| 摘 要： | 目的:对比不同修复方法的根管治疗后的冠折年轻恒牙的抗折强度差异.方法:选择30颗牙体完好的单根管的下颌第一前磨牙,经根管治疗后,随机分成6组:A组不截冠为对照组,其余五组沿着牙冠各轴面水平向中线的连线进行截冠;B组采用聚合瓷贴面修复;C组直接树脂修复;D组预成玻璃纤维桩+树脂修复;E组预成玻璃纤维桩十树脂核十聚合瓷冠修... |
| 关 键 词： | 年轻恒牙 冠折 CAD/CAM一体化纤维桩 预成纤维桩 抗折强度 |
Study on the flexural strength of different restoration methods for young permanent teeth with crown fractures after root canal treatment |
|
| WANG Mei-yan,MA Xiao-ping,CUI Yu-lan,WANG Xu,ZHANG Zhao. Study on the flexural strength of different restoration methods for young permanent teeth with crown fractures after root canal treatment[J]. Chinese Journal of Prosthodontics, 2021, 22(1): 38-42. DOI: 10.19748/j.cn.kqxf.1009-3761.2021.01.008 | |
| Authors: | WANG Mei-yan MA Xiao-ping CUI Yu-lan WANG Xu ZHANG Zhao |
| Affiliation: | (Teaching and Research Office of Stomatology,Department ofMedicine,Chengde NursingVocational College,Hebei 067000,China;School and Hospital of Stomatology,HebeiMedical University&Hebei Key Laboratory of Stomatology&Hebei ClinicalMedical Research Center of Stomatology,Hebei 050017,China) |
| Abstract: | Objective:To compare the flexural strength of different restorationmethods for young permanent teeth with crown fractures after root canal treatment.Methods:30 mandibular first premolars with single root canal in good conditions were collected.All of the sampled mandibular first premolars were randomly divided into 6 groups:GroupA was control group without crown removal;and crowns in the other 5 groups were cut from the horizontal center level to simulate crown fracture;Group B received veneer restoration;Group C received direct resin restoration;Group D received preformed fiber post+direct resin restoration;Group E received performed fiber post+resin core+polymeric ceramic crown restoration;Group F received CAD/CAM integrated fiber post+polymeric ceramic crown restoration.All specimens were then loaded till failure by the electrical universal machine.The maximum loading value and failure mode were recorded.Results:In light of the fracture resistance,Group B,C,D,E was lower than GroupA,F;Group E is higher than Group B,C,D;Group D is higher than Group B,C(P<0.05).GroupA showed teeth fracture;Group B and C showed fracture or shedding of material;Group D showed fracture of core;Group E showed crown fracture and post-core separation;and Group F showed only crown fracture.There was no root fracture in each group.Conclusions:The fracture strength of young permanent teethwith crown fracture is affected by different restorations,which can meet the requirements for daily chewing.The fracture strength with fiber post is higher than that without fiber post.Integrated fiber post restoration offers a higher fracture resistance than other methods. |
| Keywords: | young permanent teeth crown fracture CAD/CAMintegrated fiber post preformed fiber post flexural strength |
| 本文献已被 维普 万方数据 等数据库收录！ | |