Sykora O, Sutow E J
Department of Restorative Dentistry, Dalhousie University, Faculty of Dentistry, Halifax, Nova Scotia, Canada.
J Oral Rehabil. 1996 May;23(5):342-5. doi: 10.1111/j.1365-2842.1996.tb00862.x.
In this follow-up investigation, the ability of a new, high expansion stone to reduce acrylic resin denture base processing distortions was studied and compared with a previously reported investigation of bases processed on buff stone. Denture bases were processed by the continuous-injection and trial-pack techniques on flat vault palate casts and then trimmed and polished. Measurements were made at the posterior palatal border opening at 1 day and 1 week immersion in water (23 degrees C). Results showed that denture bases processed on high expansion stone had better posterior palatal seal adaptation compared with those processed on buff stone, independent of processing techniques.
在这项随访研究中，研究了一种新型高膨胀石膏减少丙烯酸树脂义齿基托加工变形的能力，并与先前报道的关于在打磨石膏上加工基托的研究进行了比较。义齿基托通过连续注射和试装技术在扁平腭穹窿模型上加工，然后进行修整和抛光。在义齿基托于23摄氏度水中浸泡1天和1周后，测量其后腭边缘开口处的尺寸。结果表明，与在打磨石膏上加工的义齿基托相比，在高膨胀石膏上加工的义齿基托具有更好的后腭封闭适应性，且与加工技术无关。
