Yazkan Basak, Ermis R Banu
a Department of Restorative Dentistry, Faculty of Dentistry , Pamukkale University , Denizli , Turkey.
b Department of Restorative Dentistry, Faculty of Dentistry , Suleyman Demirel University , Isparta , Turkey.
Acta Odontol Scand. 2018 Oct;76(7):473-481. doi: 10.1080/00016357.2018.1437217. Epub 2018 Feb 15.
The effects of resin infiltration and microabrasion on incipient carious lesions by surface microhardness, roughness and morphological assessments, and resistance to further acid attack of treated lesions were evaluated.
Eighty artificially-induced incipient lesions were randomly divided into five groups (n = 16): resin infiltration with an adhesive resin (Excite F, Ivoclar Vivadent, Schaan, Liechtenstein), resin infiltration with a resin infiltrant (Icon, DMG, Hamburg, Germany), microabrasion without polishing (Opalustre, Ultradent, South Jordan, UT, USA), microabrasion with polishing (Opalustre, Ultradent, Diamond Excel, FGM, Joinville, SC, Brazil), and distilled water (control group). All specimens were exposed to demineralization for another 10 d. Microhardness, roughness and morphological assessments were done at baseline, following initial demineralization, treatment and further demineralization. Data were analysed by the Kruskal-Wallis, Friedman's and Bonferroni tests (p < .05).
Enamel lesions treated with resin infiltrant and microabrasion demonstrated similar hardness values, with a nonsignificant difference compared with sound enamel. Resin infiltration demonstrated lower roughness values than those of microabrasion, and the values did not reach the values of sound enamel. Further demineralization for 10 d did not affect the hardness but increased the roughness of infiltrated and microabraded enamel surfaces. Polishing did not influence the roughness of microabraded enamel surfaces. After resin infiltration, porosities on enamel were sealed completely. The surface structure was similar to that of the enamel conditioning pattern for microabraded enamel lesions.
Within the limitations of this study, the icon infiltration and microabrasion technique appeared to be effective for improving microhardness. Icon appeared to provide reduced roughness, although not equal to sound enamel. Further research is needed to elucidate their clinical relevance.
通过表面显微硬度、粗糙度和形态学评估，以及对治疗后病变进一步酸侵蚀的抵抗力，评估树脂渗透和微磨除对早期龋损的影响。
80个人工诱导的早期龋损随机分为五组（n = 16）：使用粘结树脂（Excite F，义获嘉伟瓦登特公司，列支敦士登沙恩）进行树脂渗透、使用树脂渗透剂（Icon，DMG公司，德国汉堡）进行树脂渗透、不抛光的微磨除（Opalustre，Ultradent公司，美国犹他州南乔丹）、抛光的微磨除（Opalustre，Ultradent公司，Diamond Excel，FGM公司，巴西圣卡塔琳娜州茹安维尔）和蒸馏水（对照组）。所有标本再进行10天的脱矿处理。在基线、初始脱矿后、治疗后和进一步脱矿后进行显微硬度、粗糙度和形态学评估。数据采用Kruskal-Wallis检验、Friedman检验和Bonferroni检验进行分析（p < 0.05）。
用树脂渗透剂和微磨除处理的釉质病变显示出相似的硬度值，与正常釉质相比差异无统计学意义。树脂渗透显示出比微磨除更低的粗糙度值，且该值未达到正常釉质的值。再进行10天的脱矿处理未影响渗透和微磨除釉质表面的硬度，但增加了其粗糙度。抛光未影响微磨除釉质表面的粗糙度。树脂渗透后，釉质上的孔隙被完全封闭。表面结构与微磨除釉质病变的釉质预处理模式相似。
在本研究的局限性内，Icon渗透和微磨除技术似乎对提高显微硬度有效。Icon似乎能降低粗糙度，尽管不等于正常釉质。需要进一步研究以阐明它们的临床相关性。
