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Stress Distribution of the Different Post Systems Depending on the Amount of Remaining Cervical Tooth Structure

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dc.description.abstractThe purpose of this study is to compare the stress distribution of the different post systems, depending on the amount of remained cervical tooth structure by using finite element analysis. Finite element analysis models of the maxillary central incisor were reconstructed. First, an intact basic model was generated to assess the factors altering the biomechanical response of the tooth. From the intact model, the first model (0mm) was designed by assuming tooth residue that remained in parallel with the highest border of the crown margin. From this, 2mm model was designed which is lacking in 2mm tooth structure of coronal portion, and in the same way, 4mm model was designed. Each model was endodontically treated tooth and was grouped into groups restored by using carbon fiber post with resin core, glass fiber post with resin core, stainless-steel post with resin core and gold post and core. Stress distribution and maximum tooth displacement were evaluated using finite element analysis when applying an arbitrary load condition reflecting the clinical conditions of the actual teeth for each condition. As tooth structure loss increased from 0mm to 4mm, the maximum stress applied to the core is increased generally. This shows a similar characteristic even if the material is changed. In the gold core, compared to the resin core, fracture risk increased. The maximum stress acting on the tooth material is generally inversely proportional to the stress in the core. The maximum stress applied to the post varies depending on the material. The largest maximum stress was shown in the carbon-fiber post group, and the smallest in the gold post and core group. The area where the maximum stress appeared was also different. In two fiber post groups, the stress concentration area was on external surface of the root, but in two metal post groups, on the post surface. The maximum displacement tended to vary depending on the material, increasing in two fiber posts and resin core groups and decreasing in two metal post groups. This appears to be the same in the core, post, and teeth.-
dc.publisherGraduate School, Yonsei University-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.titleStress Distribution of the Different Post Systems Depending on the Amount of Remaining Cervical Tooth Structure-
dc.title.alternative치경부 잔존 치질량에 따른 서로 다른 포스트로 수복된 치아의 응력 분포 평가-
dc.contributor.collegeCollege of Dentistry (치과대학)-
dc.contributor.departmentOthers (기타)-
dc.contributor.alternativeNameHwang, Yousuk-
Appears in Collections:
2. College of Dentistry (치과대학) > Others (기타) > 5. Others


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