常规树脂与填充树脂在宫颈缘移位技术中边缘浸润的体外比较

Q4 Dentistry
D. Lorca, Constanza Tiffi, Raimundo Sarmiento, Jaime Sarmiento
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引用次数: 0

摘要

简介:近端病变超过龈缘水泥牙釉质极限(ACE),使印模和粘接技术复杂化。比较常规树脂与填充树脂在颈缘移位术中微浸润的大小。材料与方法:48颗人牙分别在LAC下进行近中牙合(OM)和远中牙合(OD)制备;首先,他们接受了宫颈缘复位技术(RMC)与大块填充和传统树脂;然后用半直接树脂镶嵌修复。样品分析:在50%的硝酸银胶体溶液中浸泡24小时,37°C,中间切割。在立体放大镜下观察,评估染料穿透性,并拍照,用“Image J”软件分析。结果:两组共96个牙槽,各48个单位;对照组采用常规树脂加增量法修复,研究组采用散装填充树脂加单增量法修复。概率抽样。Filtek™Z250™和Filtek™Bulk Fill™的微浸润面积百分比无统计学差异(p值= 0.68)。讨论:各种研究表明,边缘微渗透的存在与修复技术、稠度、粘接机制和聚合技术无关。所进行的研究也不例外,观察到两个系统的程度相似。结论:在RMC技术中,常规树脂和散装填充树脂在微渗漏百分比上没有显著差异。在研究框架之外,散装填充树脂将具有比较优势;在深度大于2mm的情况下,抗光性能更好,对“C”因子的敏感性更低,临床时间更短。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
In vitro comparison of marginal infiltration between a conventional resin and a bulk-fill resin, in the relocation of cervical margins technique
Introduction: Proximal lesions that exceed the cement enamel limit (ACE) under the gingival margin complicate impressions and the adhesive technique. Compare the magnitude of micro infiltration between conventional resin and bulk fill resin in the cervical margin relocation technique. Materials and Methods: 48 samples of human teeth re-ceived two preparations: occluso-mesial (OM) and occluso-distal (OD) under LAC; first they received the cervical margin relocation technique (RMC) with bulk fill and conventional resin; then restored with semi-direct resinous inlays. Sample analysis: immersion in 50% colloidal silver nitrate solution, 24 hours, 37°C and cut mesiodistally. Observed under a stereoscopic magnifying glass to assess dye penetration and digitally photographed, analyzed with “Image J” software. Results: Sample of 96 cavities in two groups of 48 units; control group restored with conventional resin with incremental technique and study group restored with bulk fill resin, mono-incremental technique. Probabilistic sampling. No statistically significant diffe-rences in percentage of microinfiltrated area between Filtek™ Z250™ and Filtek™ Bulk Fill™ (p-value= 0.68). Discussion: Various studies show that the presence of marginal microinfiltration exist independent of: restorative technique, consistency, adhesive mechanism and polyme-rization technique. The research carried out is no exception, observing a similar degree for both systems. Conclusions: Results allow us to conclude that conventi-onal resin and bulk fill resin did not show significant differences in microleakage percentages for the RMC technique. Outside the study framework, bulk fill resins would have comparative advantages; better behavior against light in depths greater than 2 mm, less sensitivity to the “C” factor, and less clinical time.
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来源期刊
Journal of Oral Research
Journal of Oral Research Dentistry-Dentistry (all)
CiteScore
0.50
自引率
0.00%
发文量
21
审稿时长
8 weeks
期刊介绍: Journal of Oral Research which is published every two month, is devoted to the dissemination of knowledge in oral and craniofacial sciences, including: oral surgery and medicine and rehabilitation, craniofacial surgery, dentistry, orofacial pain and motor disorders, head and neck surgery, speech and swallowing disorders, and other related disciplines. Journal of Oral Research publishes original research articles and brief communications, systematic reviews, study protocols, research hypotheses, reports of cases, comments and perspectives. Indexed by Scopus, DOAJ, LILACS, Latindex, IMBIOMED, DIALNET,REDIB and Google Scholar. Journal of Oral Research is a member of COPE.
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