Perry R, Kugel G, Leinfelder K
Department of Biomaterials, University of Alabama, School of Dentistry, Birmingham, USA.
Compend Contin Educ Dent. 1999 Jun;20(6):544-50, 552-3.
The purpose of this trial was to clinically evaluate SureFil high-density posterior composite for Class II restorations of permanent first and second molars. All teeth were restored in occlusion with the natural dentition. After cavity preparation, the enamel was etched for 15 seconds with 34% phosphoric acid. No liner/base material was used for the dentin. Two applications of Prime and Bond 2.1 were placed for adhesion to the exposed dentin and etched enamel. One coat of adhesive was cured for 10 seconds with a curing light, and one thin coat was spread with a gentle jet of air. The cavity was restored in 3-mm to 5-mm increments. Evaluation was assessed immediately after placement (baseline), and at 3 months, 6 months, 9 months, and 1 year for retention, leakage, marginal integrity, color stability, abrasive resistance, surface staining, surface texture, postoperative sensitivity, and secondary caries. The restorations were evaluated indirectly for wear using a modified USPHS and indirect cast comparison method. At baseline, 25 restorations were graded Alfa in all categories. At 3-, 6-, and 9-month recalls (N = 24), all restorations were graded Alfa in all categories. At the 1-year recall (N = 20), there were three Bravos for surface staining.
本试验的目的是对SureFil高密度后牙复合树脂用于恒牙第一和第二磨牙Ⅱ类洞修复进行临床评估。所有牙齿修复后均与天然牙列建立咬合关系。窝洞预备后,用34%磷酸对釉质蚀刻15秒。牙本质未使用衬层/基底材料。应用两次Prime and Bond 2.1以黏附暴露的牙本质和蚀刻后的釉质。一层黏结剂用固化灯固化10秒,并用轻柔的气流吹匀一层薄涂层。窝洞以3毫米至5毫米的增量进行修复。修复体就位后立即(基线)进行评估,并在3个月、6个月、9个月和1年时评估其固位、边缘渗漏、边缘完整性、颜色稳定性、耐磨性、表面染色、表面质地、术后敏感性和继发龋。使用改良的美国公共卫生署(USPHS)方法和间接铸型比较法对修复体的磨损进行间接评估。在基线时,所有类别的25个修复体均评为Alfa级。在3个月、6个月和9个月的复查时(N = 24),所有修复体在所有类别中均评为Alfa级。在1年复查时(N = 20),有3个修复体表面染色评为Bravo级。