Evaluation of surface treatment system incorporate surface cleaning of abutment teeth to improve the bonding ability of adhesive resin

(1)羧酸盐临时粘固剂具有较强的防微渗漏能力，是一种有效的临时粘固剂，可防止从牙体预备到最终修复体封固期间基牙的污染。(2)羧酸盐临时粘固剂粘附在基牙表面，降低了粘结树脂的粘结强度。(3)2.5%氨水溶液对羧酸盐水泥的清除效果最好，对粘结树脂的粘结强度影响不大。因此，氨水是一种实用的羧酸盐粘固剂溶剂。(4)在金属核基牙表面处理的情况下，溢出的金属底漆/牙本质底漆到基牙的不希望的区域上，影响粘结树脂的粘结强度。适当的程序是必要的，以实现最佳性能的粘接系统。(5)便携式喷砂机使用压缩空气筒，可以等效地使用作为传统的系统，以提高粘接树脂对基牙的金属和釉质的粘接强度。喷砂处理对4-Meta/TBBO树脂与牙本质的粘接强度有不利影响。(6)在金属桩洞内牙本质表面涂抹NaOCl溶液会降低4-Meta/MMA-TBBO树脂与牙本质的粘结强度。用5%硫代硫酸钠或5%抗坏血酸中和和超声波清洗是恢复粘接树脂粘接强度的最有效方法。(7)金属桩或聚乙烯纤维加固是提高复合义齿基牙为桥体的树脂粘结固定桥粘结耐久性的最有效方法。然而，临床评价表明，并非所有病例都需要这些加固，氧化铝喷砂的腔体制备在临床病例中有效且充分。

(1) Carboxylate temporary cement showed high ability to prevent microleakage and was effective temporary cement to prevent contamination of abutment teeth during the term from tooth preparation through luting of final restoration.(2) Carboxylate temporary cement adhered to abutment tooth surface decreased the bond strength of adhesive resin.(3) 2.5% ammonia solution showed excellent removing ability of carboxylate cement and had little influence on bond strength of adhesive resin. Therefore, ammonia solution is a practical solvent for carboxylate cement.(4) In case of surface treatment of abutment tooth with metal core, the overflowed metal primer/dentin primer onto undesirable area of abutment tooth affected the bond strength of adhesive resins. Appropriate procedure was necessary to achieve best performances of bonding systems.(5) The portable sandblaster using a compressed air cartridge can be used equivalently as conventional systems to improve the bond strength of adhesive resin to metal and enamel of abutment teeth. However, the bond strength to dentin was adversely affected by sandblasting for 4-META/TBBO resin.(6) The application of NaOCl solution to dentin surface in metal post cavity decreased the bond strength of 4-META/MMA-TBBO resin to dentin. The neutralization with 5% sodiumthiosulfate or 5% ascorbic acid and ultrasonic cleaning was most effective method to recover the bond strength of adhesive resin.(7) The reinforcement using metal post or polyethylene fiber was most effective method to improve the bonding durability of resin-bonded fixed partial denture using composite denture tooth as pontic. However, clinical evaluation implicates that those reinforcements are not necessary for all cases and the cavity preparation with alumina blasting was effective and sufficient in clinical cases.