Demirci Mustafa, Tuncer Safa, Öztaş Evren, Tekçe Neslihan, Uysal Ömer
Department of Restorative Dentistry, Faculty of Dentistry, Istanbul University, Çapa, 34390, Istanbul, Turkey.
Department of Orthodontics, Faculty of Dentistry, Istanbul University, Çapa, 34390, Istanbul, Turkey.
Clin Oral Investig. 2015 Dec;19(9):2187-99. doi: 10.1007/s00784-015-1458-8. Epub 2015 Mar 24.
To evaluate the medium-term clinical performance of direct composite build-ups for diastema closures and teeth recontouring using a nano and a nanohybrid composite in combination with three- or two-step etch-and-rinse adhesives following treatment with fixed orthodontic appliances.
A total of 30 patients (mean age, 19.5 years) received 147 direct composite additions for teeth recontouring and diastema closures. A nano and a nanohybrid composite (Filtek Supreme XT and CeramX Duo) were bonded to tooth structure by using a three-step (Scotchbond Multipurpose) or a two-step (XP Bond) etch and rinse adhesive. Ten out of 147 composite build-ups (composite addition) constituted tooth recontouring cases, and the remaining 137 constituted diastema closure cases. The restorations were evaluated by two experienced, calibrated examiners according to modified Ryge criteria at the following time intervals: baseline, 1, 2, 3, and 4 years.
The 4-year survival rates were 92.8 % for Filtek Supreme XT/Scotchbond Multi-Purpose Plus and 93 % for CeramX Duo/XP Bond. Only ten restorations failed (5 Filtek Supreme XT and 5 CeramX Duo). Statistical analysis revealed no significant differences between the two composite-adhesive combinations with respect to color match, marginal discoloration, wear/loss of anatomical form, caries formation, marginal adaptation, and surface texture on comparing the five time periods (baseline, 1, 2, 3, and 4 years)
The 4-year survival rates in the present study were favorable. The restorations exhibited excellent scores with regard to color match, marginal adaptation, surface texture, marginal discoloration, wear/loss of anatomical form, and caries formation, after 4 years of clinical evaluation. Clinical relevance An alternative clinical approach for correcting discrepancies in tooth size and form, such as performing direct composite restorations following fixed orthodontic treatment, may be an excellent and minimally invasive treatment.
评估在固定正畸矫治器治疗后，使用纳米复合树脂和纳米混合复合树脂结合三步或两步酸蚀冲洗粘结剂进行直接复合树脂修复关闭牙间隙和重塑牙齿外形的中期临床效果。
共30例患者（平均年龄19.5岁）接受了147次直接复合树脂修复以重塑牙齿外形和关闭牙间隙。使用纳米复合树脂和纳米混合复合树脂（Filtek Supreme XT和CeramX Duo），通过三步法（Scotchbond Multipurpose）或两步法（XP Bond）酸蚀冲洗粘结剂粘结到牙齿结构上。147例复合树脂修复中，10例为重塑牙齿外形病例，其余137例为关闭牙间隙病例。由两名经验丰富且经过校准的检查者根据改良的Ryge标准在以下时间间隔对修复体进行评估：基线、1年、2年、3年和4年。
Filtek Supreme XT/Scotchbond Multi-Purpose Plus的4年存留率为92.8%，CeramX Duo/XP Bond的4年存留率为93%。仅10个修复体失败（5个Filtek Supreme XT和5个CeramX Duo）。统计分析显示，在比较五个时间段（基线、1年、2年、3年和4年）时，两种复合树脂-粘结剂组合在颜色匹配、边缘变色、解剖外形磨损/丧失、龋齿形成、边缘适合性和表面质地方面无显著差异。
本研究中的4年存留率良好。经过4年的临床评估，修复体在颜色匹配、边缘适合性、表面质地、边缘变色、解剖外形磨损/丧失和龋齿形成方面表现出优异的评分。临床意义 一种矫正牙齿大小和形态差异的替代临床方法，如在固定正畸治疗后进行直接复合树脂修复，可能是一种优秀的微创治疗方法。
