目的:使用印章结合单阴影复合树脂(S/SCR)技术评估磨牙窝裂龋齿直接修复的临床表现,并评估冲压次数对S/SCR技术真实性的影响。
方法:采用S/SCR技术修复15例窝裂龋但咬合形态完整或微空化患者的20颗磨牙,随机分为单压组(n=10)和双压组(n=10)。治疗前进行口内扫描(扫描1),填充后(扫描2)和抛光后(扫描3)。制作成对拟合的偏差分布图,包括比较1(扫描1/扫描2),比较2(扫描1/扫描3),和使用GeomagicControlX软件的比较3(scan2/scan3)。计算均方根(RMS)值以评估修复体的真实性。临床表现包括美学,功能,在12个月的随访后,根据FDI标准评估了所有修复体的生物学特性。方差分析,统计学分析采用独立样本T检验和Wilcoxon秩和检验(α=0.05)。
结果:单按压组比较1,比较2和比较3的RMS值分别为0.1243±0.0151,0.0966±0.0136和0.0605±0.0137mm,而双压组0.0831±0.0140,0.0741±0.0107,0.0475±0.0099mm,分别。在相同的比较中,单按压组的RMS值高于双按压组(p≤0.001)。两组之间在美学方面没有观察到统计学上的显着差异。功能和生物学特性(p>0.05)。对于所有属性,所有修复评分均在3分以内,80%以上为1分。
结论:S/SCR技术在12个月的随访后,对磨牙窝沟龋的临床表现令人满意。此外,与单按压相比,双按压可以提高修复体的真实性。
结论:S/SCR技术在直接复合树脂修复窝沟龋方面是有效的,满足审美,12个月随访后的功能和生物学特性。重要的是,双压制提高了S/SCR技术的真实性,减少对遮挡调整的需要。
OBJECTIVE: To evaluate the clinical performance of direct restorations for pit-and-fissure caries in molars using stamp combined with single-shade composite resin (S/SCR) technique, and assess the effect of the number of stamp pressing on the trueness of S/SCR technique.
METHODS: Twenty molars of fifteen patients with pit-and-fissure caries but with an intact or micro-cavitated occlusal morphology were restored using S/SCR technique and were randomly divided into single pressing group (n = 10) and double pressing group (n = 10). Intraoral scans were obtained before treatment (scan 1), after filling (scan 2) and after polishing (scan 3). Deviation distribution maps of pairwise fitting were created including comparison 1 (scan1/scan 2), comparison 2 (scan1/scan 3), and comparison 3 (scan2/scan 3) using Geomagic Control X software. Root mean square (RMS) values were calculated to evaluate the trueness of restorations. Clinical performances including esthetic, functional, and biological properties of all restorations were evaluated according to FDI criteria after a 12-month follow-up. Analysis of variance, independent-samples T test and Wilcoxon rank-sum test were used for statistical analysis (α=0.05).
RESULTS: RMS values for comparison 1, comparison 2, and comparison 3 were 0.1243 ± 0.0151, 0.0966 ± 0.0136, and 0.0605 ± 0.0137 mm in single pressing group, while 0.0831 ± 0.0140, 0.0741 ± 0.0107, and 0.0475 ± 0.0099 mm in double pressing group, respectively. RMS value of single pressing group was higher than that of double pressing group in the same comparison (p ≤ 0.001). No statistically significant differences were observed between the two groups regarding esthetic, functional and biological properties (p > 0.05). For all properties, all restorations scored within 3, with over 80% scoring 1.
CONCLUSIONS: S/SCR technique presents satisfying clinical performances for pit-and-fissure caries in molars after a 12-month follow-up. Besides, double pressing can improve the trueness of restorations compared to single pressing.
CONCLUSIONS: S/SCR technique is efficient in direct composite resin restoration for pit-and-fissure caries, with satisfying esthetic, functional and biological properties after a 12-month follow-up. Significantly, double pressing improves the trueness of S/SCR technique, reducing the need for occlusion adjustment.