{"title":"多孔氧化锆球中的微孔有助于提高牙科树脂复合材料的光学透明度。","authors":"Shingo Mizobuchi, Masataka Ohtani, Kazuya Kobiro","doi":"10.4012/dmj.2023-106","DOIUrl":null,"url":null,"abstract":"<p><p>Transparency to UV-Vis light and radiopacity of dental resin composites containing zirconia (ZrO<sub>2</sub>) fillers were investigated. The transparency of the resin composite containing porous ZrO<sub>2</sub> spheres was much higher than that containing irregularly shaped ZrO<sub>2</sub> particles. Calcination of the porous ZrO<sub>2</sub> spheres at high temperatures led to dramatically reduced specific surface areas and pore volumes. The transparency of the resin composite containing the calcined porous ZrO<sub>2</sub> spheres drastically decreased as the calcination temperature increased. Then, the enhanced UV-Vis transmittance of the resin composite containing porous ZrO<sub>2</sub> spheres is attributed to the concentration and physical characteristics of the pores. The radiopacity of the resin composites containing porous ZrO<sub>2</sub> spheres increased slightly with increasing calcination temperature. This study revealed that the internal structure of the ZrO<sub>2</sub> fillers mainly influenced in the UV-Vis light transmittance of the resin composites.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Contribution of micropores in porous zirconia spheres to high optical transparency of dental resin composites.\",\"authors\":\"Shingo Mizobuchi, Masataka Ohtani, Kazuya Kobiro\",\"doi\":\"10.4012/dmj.2023-106\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Transparency to UV-Vis light and radiopacity of dental resin composites containing zirconia (ZrO<sub>2</sub>) fillers were investigated. The transparency of the resin composite containing porous ZrO<sub>2</sub> spheres was much higher than that containing irregularly shaped ZrO<sub>2</sub> particles. Calcination of the porous ZrO<sub>2</sub> spheres at high temperatures led to dramatically reduced specific surface areas and pore volumes. The transparency of the resin composite containing the calcined porous ZrO<sub>2</sub> spheres drastically decreased as the calcination temperature increased. Then, the enhanced UV-Vis transmittance of the resin composite containing porous ZrO<sub>2</sub> spheres is attributed to the concentration and physical characteristics of the pores. The radiopacity of the resin composites containing porous ZrO<sub>2</sub> spheres increased slightly with increasing calcination temperature. This study revealed that the internal structure of the ZrO<sub>2</sub> fillers mainly influenced in the UV-Vis light transmittance of the resin composites.</p>\",\"PeriodicalId\":11065,\"journal\":{\"name\":\"Dental materials journal\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2024-01-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Dental materials journal\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.4012/dmj.2023-106\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2023/12/29 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"DENTISTRY, ORAL SURGERY & MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dental materials journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.4012/dmj.2023-106","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/12/29 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
Contribution of micropores in porous zirconia spheres to high optical transparency of dental resin composites.
Transparency to UV-Vis light and radiopacity of dental resin composites containing zirconia (ZrO2) fillers were investigated. The transparency of the resin composite containing porous ZrO2 spheres was much higher than that containing irregularly shaped ZrO2 particles. Calcination of the porous ZrO2 spheres at high temperatures led to dramatically reduced specific surface areas and pore volumes. The transparency of the resin composite containing the calcined porous ZrO2 spheres drastically decreased as the calcination temperature increased. Then, the enhanced UV-Vis transmittance of the resin composite containing porous ZrO2 spheres is attributed to the concentration and physical characteristics of the pores. The radiopacity of the resin composites containing porous ZrO2 spheres increased slightly with increasing calcination temperature. This study revealed that the internal structure of the ZrO2 fillers mainly influenced in the UV-Vis light transmittance of the resin composites.
期刊介绍：
Dental Materials Journal is a peer review journal published by the Japanese Society for Dental Materials and Devises aiming to introduce the progress of the basic and applied sciences in dental materials and biomaterials. The dental materials-related clinical science and instrumental technologies are also within the scope of this journal. The materials dealt include synthetic polymers, ceramics, metals and tissue-derived biomaterials. Forefront dental materials and biomaterials used in developing filed, such as tissue engineering, bioengineering and artificial intelligence, are positively considered for the review as well. Recent acceptance rate of the submitted manuscript in the journal is around 30%.
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