Restorative Dentistry and Endodontics最新文献_第2页

Electronic publication of research results 研究成果的电子出版

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.67

B. Cho

引用次数: 0

Vital tooth with periapical lesion: spontaneous healing after conservative treatment 有根尖周病变的重要牙齿:保守治疗后自愈

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.123

H. J. Kim, Seung‐Jong Lee, I. Jung, Sung-ho Park

引用次数: 0

Colorimetric comparison of single layered dental composite with double layered dental composite 单层牙科复合材料与双层牙科复合材料的比色比较

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.84

Young-Sang Song, Ja-Hyun Kim, Bin-Na Lee, Ji-Hyun Jang, Hoon-Sang Chang, Y. Hwang, W. Oh, In-Nam Hwang

{"title":"Colorimetric comparison of single layered dental composite with double layered dental composite","authors":"Young-Sang Song, Ja-Hyun Kim, Bin-Na Lee, Ji-Hyun Jang, Hoon-Sang Chang, Y. Hwang, W. Oh, In-Nam Hwang","doi":"10.5395/RDE.2012.37.2.84","DOIUrl":"https://doi.org/10.5395/RDE.2012.37.2.84","url":null,"abstract":"Objectives: This study analyzed the difference in color caused by different thickness in enamel layer of composite resins when applied with single and layering placement technique, and evaluated if the results agreed with the shade guide from the manufacturers to verify reliability of the color matching process of the manufacturers. Materials and Methods: For single composite resin samples, 6 mm diameter and 4 mm thickness cylindrical samples were fabricated using Ceram-X mono (DENTSPLY DeTrey) and CIE values were measured with spectrophotometer. Same process was done for layering composite resin samples, making 3 dentinal shade samples, 4 mm thickness, for each shade using Ceram-X duo (DENTSPLY DeTrey) and enamel shade resins were layered in 2 mm thickness and CIE values were measured. These samples were ground to 0.2 mm thickness each time, and CIE values were measured to 1 mm thickness of enamel shade resin. Results: Color difference () between single and layering composite resin was 1.37 minimum and 10.53 maximum when layering thicknesses were between 1 mm and 2 mm and 6 out of 10 same shade groups suggested by manufacturer showed remarkable color difference at any thickness ( > 3.3). Conclusion: When using Ceram-X mono and duo for composite resin restoration, following the manufacturer's instructions for choosing the shade is not appropriate, and more accurate information for Ceram-X duo is needed on the variation and expression of the shades depending on the thickness of the enamel.","PeriodicalId":21126,"journal":{"name":"Restorative Dentistry and Endodontics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89083077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of internal stress on cyclic fatigue failure in K3 内应力对K3循环疲劳破坏的影响

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.74

Jun-Young Kim, Jin-Woo Kim, Kyung-Mo Cho, Se-Hee Park

引用次数: 0

Prevention of tooth discoloration associated with triple antibiotics 预防牙齿变色与三重抗生素有关

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.119

Bona Kim, Minju Song, S. Shin, Jeong-Won Park

引用次数: 8

Re-establishment of occlusion after unilateral condylar fracture 单侧髁突骨折后咬合的重建

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.110

Yookyung Kim, Sung-ho Park, B. Roh

引用次数: 0

Pre-prosthetic minor tooth movement with elastic separating ring & provisional restoration modification: case report 假体前小牙弹性分离环移动及临时修复修改1例

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.114

Haneol Shin, B. Roh, Y. Shin, Chan-Young Lee

引用次数: 1

An evaluation of the accuracy of Root ZX according to the conditions of major apical foramen 根据根尖大孔情况对根ZX精度的评价

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.68

S. Park, Dong-Kyun Lee, Ho-Keel Hwang

引用次数: 2

Effect of internal stress on cyclic fatigue failure in .06 taper ProFile 内应力对0.06锥度曲线循环疲劳失效的影响

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.79

H. Jung, Jin-Woo Kim, Kyung-Mo Cho, Se-Hee Park

{"title":"Effect of internal stress on cyclic fatigue failure in .06 taper ProFile","authors":"H. Jung, Jin-Woo Kim, Kyung-Mo Cho, Se-Hee Park","doi":"10.5395/RDE.2012.37.2.79","DOIUrl":"https://doi.org/10.5395/RDE.2012.37.2.79","url":null,"abstract":"Objectives: The purpose of this study was to evaluate the relation between intentionally induced internal stress and cyclic fatigue failure of .06 taper ProFile. Materials and Methods: Length 25 mm, .06 taper ProFile (Dentsply Maillefer), and size 20, 25, 30, 35 and 40 were used in this study. To give the internal stress, the rotary NiTi files were put into the .02 taper, Endo-Training-Bloc (Dentsply Maillefer) until auto-stop by torque controlled motor. Rotary NiTi files were grouped by the number of induced internal stress and randomly distributed among one control group and three experimental groups (n = 10, Stress 0 [control], Stress 1, Stress 2 and Stress 3). For cyclic fatigue measurement, time for separation of the rotary NiTi files was recorded. The fractured surfaces were observed by field emission scanning electron microscope (FE-SEM, SU-70, Hitachi). The time for separation was statistically analyzed using two-way ANOVA and post-hoc Scheffe test at 95% level. Results: In .06 taper ProFile size 20, 25, 30, 35 and 40, there were statistically significant difference on time for separation between control group and the other groups (p","PeriodicalId":21126,"journal":{"name":"Restorative Dentistry and Endodontics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87069535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An evaluation of canal curvature at the apical one third in type II mesial canals of mandibular molars 下颌磨牙II型中内根管顶端三分之一管曲率的评价

Restorative Dentistry and Endodontics Pub Date : 2012-05-01 DOI: 10.5395/RDE.2012.37.2.104

Hye-Rim Yun, Dong-Kyun Lee, Ho-Keel Hwang

{"title":"An evaluation of canal curvature at the apical one third in type II mesial canals of mandibular molars","authors":"Hye-Rim Yun, Dong-Kyun Lee, Ho-Keel Hwang","doi":"10.5395/RDE.2012.37.2.104","DOIUrl":"https://doi.org/10.5395/RDE.2012.37.2.104","url":null,"abstract":"Objectives: The purpose of this study was to evaluate the buccolingual curvature at the apical one third in type II mesial canals of mandibular molars using the radius and angle of curvature. Materials and Methods: Total 100 mandibular molars were selected. Following an endodontic access in the teeth, their distal roots were removed. #15 H- or K-files (Dentsply Maillefer) were inserted into the mesiobuccal and mesiolingual canals of the teeth. Radiographs of the teeth were taken for the proximal view. Among them, type II canals were selected and divided into two subgroups, IIa and IIb. In type IIa, two separate canals merged into one canal before reaching the apex and in type IIb, two separate canals merged into one canal within the apical foramen. The radius and angle of curvature of specimens were examined. Results: In type II, mean radius of curvature in mesiolingual and mesiobuccal canals were 2.82 mm and 3.58 mm, respectively. The radius of the curvature of mesiolingual canals were significantly smaller than that of mesiobuccal canals in type II, and especially in type IIa. However, there were no statistically significant differences in radius of curvature between mesiobuccal and mesiolingual canals in type IIb and there were no significant differences in angle of curvature between type IIa and IIb. Conclusion: In this study, type II mesial canals of mandibular molars showed severe curvature in the proximal view. Especially, mesiolingual canals of type IIa had more abrupt curvature than mesiobuccal canals at the apical one third.","PeriodicalId":21126,"journal":{"name":"Restorative Dentistry and Endodontics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86338452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0