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Wear behavior of a microhybrid composite vs. a nanocomposite in the treatment of severe tooth wear patients: A 5-year clinical study
Dental Materials ( IF 5 ) Pub Date : 2021-09-24 , DOI: 10.1016/j.dental.2021.09.011
K Ning 1 , E Bronkhorst 2 , A Bremers 2 , H Bronkhorst 2 , W van der Meer 3 , F Yang 1 , S Leeuwenburgh 1 , B Loomans 2
Affiliation  

Objective

This study aimed to compare the wear behavior of a microhybrid composite vs. a nanocomposite in patients suffering from severe tooth wear.

Methods

A convenience sample of 16 severe tooth wear patients from the Radboud Tooth Wear Project was included. Eight of them were treated with a microhybrid composite (Clearfil APX, Kuraray) and the other eight with a nanocomposite (Filtek Supreme XTE, 3M). The Direct Shaping by Occlusion (DSO) technique was used for all patients. Clinical records were collected after 1 month (baseline) as well as 1, 3 and 5 years post-treatment. The maximum height loss at specific areas per tooth was measured with Geomagic Qualify software. Intra-observer reliability was tested with paired t-tests, while multilevel logistic regression analyses were used to compare odds ratios (OR) of “large amount of wear”.

Results

Intra-observer reliability tests confirmed that two repeated measurements agreed well (p > 0.136). For anterior mandibular teeth, Filtek Supreme showed significantly less wear than Clearfil APX; in maxillary anterior teeth, Clearfil APX showed significantly less wear (OR material = 0.28, OR jaw position = 0.079, p < 0.001). For premolar and molar teeth, Filtek Supreme showed less wear in bearing cusps, whereas Clearfil APX showed less wear in non-bearing cusps (premolar: OR material = 0.42, OR bearing condition = 0.18, p = 0.001; molar: OR material = 0.50, OR bearing condition = 0.14, p < 0.001).

Significance

Nanocomposite restorations showed significantly less wear at bearing cusps, whereas microhybrid composite restorations showed less wear at non-bearing cusps and anterior maxillary teeth.



中文翻译:

微混合复合材料与纳米复合材料在治疗严重牙齿磨损患者中的磨损行为:一项为期 5 年的临床研究

客观的

本研究旨在比较微混合复合材料纳米复合材料在牙齿严重磨损患者中的磨损行为。

方法

包括来自 Radboud 牙齿磨损项目的 16 名严重牙齿磨损患者的便利样本。其中八个用微混合复合材料(Clearfil APX,Kuraray)处理,另外八个用纳米复合材料(Filtek Supreme XTE,3M)处理。遮挡直接塑形 (DSO) 技术用于所有患者。在 1 个月后(基线)以及治疗后 1、3 和 5 年收集临床记录。使用 Geomagic Qualify 软件测量每颗牙齿特定区域的最大高度损失。使用配对 t 检验测试观察者内的可靠性,同时使用多级逻辑回归分析来比较“大量磨损”的优势比 (OR)。

结果

观察者内部可靠性测试证实两次重复测量结果一致(p > 0.136)。对于下颌前牙,Filtek Supreme 的磨损明显低于 Clearfil APX;在上颌前牙中,Clearfil APX 的磨损显着减少(OR材料= 0.28,OR下颌位置= 0.079,p < 0.001)。对于前磨牙和磨牙,Filtek Supreme 在轴承牙尖磨损较少,而 Clearfil APX 在非轴承牙尖磨损较少(前磨牙:OR材料= 0.42,OR轴承条件= 0.18,p = 0.001;磨牙:OR材料= 0.50 , OR轴承条件= 0.14, p < 0.001)。

意义

纳米复合修复体在轴承牙尖处的磨损显着减少,而微混合复合修复体在非轴承牙尖和上颌前牙处的磨损更少。

更新日期:2021-09-24
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