Giordano R
Gen Dent. 2000 May-Jun;48(3):244-9.
The Targis/Vectris and Sculpture/FibreKor systems were devised to create a translucent maximally reinforced resin framework for fabrication of crowns, bridges, inlays, and onlays. These materials are esthetic, have translucency similar to castable glass-ceramics such as OPC and Empress, and have fits that are reported to be acceptable in clinical and laboratory trials. These restorations rely on proper bonding to the remaining tooth structure; therefore, careful attention to detail must be paid to this part of the procedure. Cementation procedures should involve silane treatment of the cleaned abraded internal restoration surface, application of bonding agent to the restoration as well as the etched/primed tooth, and finally use of a composite resin. Each manufacturer has a recommended system which has been tested for success with its resin system. These fiber reinforced resins are somewhat different than classical composites, so not all cementation systems will necessarily work with them. Polishing of the restoration can be accomplished using diamond or alumina impregnated rubber wheels followed by diamond paste. The glass fibers can pose a health risk. They are small enough to be inhaled and deposited in the lungs, resulting in a silicosis-type problem. Therefore, if fibers are exposed and ground on, it is extremely important to wear a mask. Also, the fibers can be a skin irritant, so gloves also should be worn. If the fibers become exposed intraorally, they can cause gingival inflammation and may attract plaque. The fibers should be covered with additional composite resin. If this cannot be accomplished, the restoration should be replaced. The bulk of these restorations are formed using a particulate filled resin, similar in structure to conventional composite resins. Therefore, concerns as to wear resistance, color stability, excessive expansion/contraction, and sensitivity remain until these materials are proven in long-term clinical trials. They do hold the promise of minimizing tooth reduction and may be particularly useful in preserving sound tooth structure. Although not the primary intended use, an excellent application is long-term temporization, such as for patients requiring full mouth rehabilitation. The belleGlass/Connect, Ribbond, and GlasSpan materials rely on nonimpregnated polyethylene fibers which have mechanical properties inferior to Vectris and FibreKor. These fibers may be used to greater success as splinting materials, in provisional restorations, and in repair of complete and partial removable dentures.
Targis/Vectris和Sculpture/FibreKor系统旨在制造一种半透明的、强化程度最高的树脂框架，用于制作冠、桥、嵌体和高嵌体。这些材料美观，具有与可铸玻璃陶瓷（如OPC和Empress）相似的半透明性，并且据报道在临床和实验室试验中的贴合度是可接受的。这些修复体依赖于与剩余牙体结构的正确粘结；因此，必须仔细关注该操作的这一部分。粘结程序应包括对清洁和打磨后的修复体内表面进行硅烷处理，在修复体以及酸蚀/涂底胶的牙体上涂抹粘结剂，最后使用复合树脂。每个制造商都有一个推荐系统，该系统已针对其树脂系统进行了成功测试。这些纤维增强树脂与传统复合材料有些不同，因此并非所有粘结系统都一定适用于它们。修复体的抛光可使用金刚石或含氧化铝的橡胶轮，随后使用金刚石糊剂来完成。玻璃纤维可能会带来健康风险。它们小到足以被吸入并沉积在肺部，导致类似矽肺病的问题。因此，如果纤维暴露并被打磨，佩戴口罩极为重要。此外，纤维可能会刺激皮肤，所以也应佩戴手套。如果纤维在口腔内暴露，它们会引起牙龈炎症并可能吸引牙菌斑。纤维应由额外的复合树脂覆盖。如果无法做到这一点，则应更换修复体。这些修复体的主体是使用颗粒填充树脂形成的，其结构与传统复合树脂相似。因此，在这些材料经过长期临床试验验证之前，耐磨性、颜色稳定性、过度膨胀/收缩以及敏感性等问题仍然存在。它们确实有望将牙体预备减到最小，并且在保留健康牙体结构方面可能特别有用。尽管不是其主要预期用途，但一个很好的应用是长期临时修复，例如对于需要全口修复的患者。belleGlass/Connect、Ribbond和GlasSpan材料依赖于未浸渍的聚乙烯纤维，其机械性能不如Vectris和FibreKor。这些纤维作为夹板材料、临时修复体以及全口和局部可摘义齿的修复材料可能会取得更大的成功。
