Polyzois G L, Karkazis H C, Zissis A J, Demetriou P P
J Prosthet Dent. 1987 May;57(5):639-47. doi: 10.1016/0022-3913(87)90351-9.
An investigation was conducted to evaluate and compare the dimensional stability of three fast boilable denture resins with a conventional and a high-impact denture resin processed with a long-curing cycle. Although the boilable denture resins have been introduced to the dental profession and offer merits such as faster processing, saving time for the dentist, patient, and technician, reduction of energy costs, and dramatic increase in denture laboratory production without adding personnel or purchasing new equipment, the relevant dental literature is sparse. The results of this investigation indicate that all five denture resins produced dentures that shrink. Also measurements between certain teeth showed shrinkages. Linear shrinkages of denture bases and teeth distances were less than 1%. Flange-to-flange and molar-to-molar changes were less than 0.5 mm and 0.2 mm respectively. Maxillary complete dentures processed in boilable resins presented less distortion in the midpalatal area across the posterior section than dentures processed in the conventional heat-cured resin. Although linear changes reported in this investigation were thought to be clinically insignificant, clinical studies should be conducted to establish correlation with laboratory findings.
开展了一项调查，以评估和比较三种快煮型义齿树脂与一种采用长固化周期加工的传统义齿树脂及高抗冲义齿树脂的尺寸稳定性。尽管快煮型义齿树脂已引入牙科行业，并具有诸如加工速度更快、为牙医、患者和技师节省时间、降低能源成本以及在不增加人员或不购置新设备的情况下大幅提高义齿制作产量等优点，但相关的牙科文献却很稀少。该调查结果表明，所有五种义齿树脂制作的义齿都会收缩。某些牙齿之间的测量也显示出收缩情况。义齿基托和牙齿间距的线性收缩小于1%。翼缘到翼缘以及磨牙到磨牙的变化分别小于0.5毫米和0.2毫米。与采用传统热固化树脂加工的义齿相比，用快煮型树脂加工的上颌全口义齿在后段中腭区域的变形较小。尽管本调查中报告的线性变化被认为在临床上无显著意义，但仍应进行临床研究以确定与实验室结果的相关性。
