Application of optical coherence tomography in restorative dentistry

光学相干断层扫描在牙科修复中的应用

• 批准号: 23390432
• 负责人: TAGAMI Junji
• 金额: $ 12.31万
• 依托单位: Tokyo Medical and Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23390432/
• 关键词: 歯学; 光干渉断層計; 歯冠修復; う蝕; 亀裂; コンポジットレジン修復; 窩壁適合性; 非う蝕性歯頸部欠損; OCT; 齲蝕; コンポジットレジン; 適合性; 摩耗

Swept-source optical coherence tomography (SS-OCT) can construct cross-sectional images of biological structures. The purpose of this study was to evaluate the possibility to introduce SS-OCT in restorative dentistry.In operative dentistry, SS-OCT was examined to evaluate the diagnostic accuracy for the detection of caries and tooth crack. Refractive indices of enamel and dentin and attenuation coefficient were measured using SS-OCT. We also establish a method for non-destructive detection of gap and secondary caries beneath composite restorations. In endodontics, SS-OCT was used for the detection of root fracture, imaging the pulp chamber, and detection of second mesiobuccal canal of maxillary molars. In the field of fixed prosthodontics, influence of dentin alteration due to aging on OCT imaging was evaluated. In composite restorations, wear is one critical problem in clinic. Subsurface cracks underneath wear traces were observed.

扫频光学相干断层扫描 (SS-OCT) 可以构建生物结构的横截面图像。本研究的目的是评估在牙科修复中引入 SS-OCT 的可能性。在牙科手术中，对 SS-OCT 进行检查以评估龋齿和牙齿裂纹检测的诊断准确性。使用SS-OCT测量牙釉质和牙本质的折射率以及衰减系数。我们还建立了一种无损检测复合修复体下方间隙和继发龋的方法。在牙髓病学中，SS-OCT 用于检测牙根折断、牙髓腔成像以及上颌磨牙第二近颊管的检测。在固定修复领域，评估了由于老化引起的牙本质改变对OCT成像的影响。在复合修复体中，磨损是临床上的一个关键问题。观察到磨损痕迹下方的表面裂纹。

项目成果

Non-destructive characterization of voids in six flowable composites using swept-source optical coherence tomography

• DOI: 10.1016/j.dental.2012.11.004
• 发表时间: 2013-03-01
• 期刊: DENTAL MATERIALS
• 影响因子: 5
• 作者: Nazari, Amir;Sadr, Alireza;Sumi, Yasunori
• 通讯作者: Sumi, Yasunori

Effects of structural orientation of enamel and dentin on light attenuation and local refractive index : an optical coherence tomography study

牙釉质和牙本质的结构取向对光衰减和局部折射率的影响：光学相干断层扫描研究

• 发表时间: 2012
• 期刊: J Dent
• 影响因子: 4.4
• 作者: Hariri I;Sadr A;Shimada Y;Tagami J;Sumi Y
• 通讯作者: Sumi Y

光干渉断層計(OCT)を利用した非破壊断層画像診断

使用光学相干断层扫描 (OCT) 进行无损断层成像诊断

• 发表时间: 2011
• 期刊: 日本歯科理工学会雑誌
• 作者: 島田康史;有吉芽生;今井加奈子;マキシパトリシア;吉岡俊彦;田上順次;角保徳
• 通讯作者: 角保徳

3D evaluation of composite resin restoration at practical training using swept-source optical coherence tomography (SS-OCT)

• DOI: 10.4012/dmj.2011-244
• 发表时间: 2012-05-01
• 期刊: DENTAL MATERIALS JOURNAL
• 影响因子: 2.5
• 作者: Shimada, Yasushi;Sadr, Alireza;Sumi, Yasunori
• 通讯作者: Sumi, Yasunori

Concurrent evaluation of composite internal adaptation and bond strength in a class-I cavity

• DOI: 10.1016/j.jdent.2012.10.003
• 发表时间: 2013-01-01
• 期刊: JOURNAL OF DENTISTRY
• 影响因子: 4.4
• 作者: Bakhsh, Turki A.;Sadr, Alireza;Sumi, Yasunori
• 通讯作者: Sumi, Yasunori