Stein J M
Cah Prothese. 1990 Dec(72):102-10.
The edentulous distal extension area has generally been restored with a removable partial denture. Some clinicians report long term success with a fixed partial denture containing distal cantilever pontic(s). Conversely, other clinicians find that the aforementioned is suspect at best due to the unusual stress demands placed on the abutment teeth by the pontic(s). When a tooth borne fixed partial denture is used to restore a long edentulous span, reports vary relative to long term success. The advent of osseointegrated implants as tooth substitutes may reduce and often eliminate particular compromised fixed or removable partial denture designs. Disregarding other problems that may or may not coexist with any remaining natural teeth in the same arch is a fallacious overview. It is paramount that future problems must be incorporated in any and all treatment plans at the same time the initial plan is formulated. Recent surveys reveal that a fewer percent of the population are becoming completely edentulous. Therefore, it is apparent that an increase in the treatment of the partially edentulous implant patient is a realistic consideration for all restorative dentists. However, it is ironic that those patients with the most severely debilitated conditions may often not be candidates for implant procedures. It is mandatory that a detailed explanation of any compromises and drawbacks to the final result must accompany the initial diagnostic presentation to the patient. It is quite evident that the dentist is confronted with a paradox that is difficult to resolve.(ABSTRACT TRUNCATED AT 250 WORDS)
无牙的远中延伸区通常用可摘局部义齿修复。一些临床医生报告称,含远中悬臂桥体的固定局部义齿取得了长期成功。相反,其他临床医生发现,由于桥体对基牙施加的异常应力要求,上述方法充其量值得怀疑。当使用牙支持式固定局部义齿修复较长的无牙间隙时,关于长期成功的报告各不相同。骨结合种植体作为牙齿替代物的出现可能会减少并常常消除特定的有缺陷的固定或可摘局部义齿设计。忽视同一牙弓中可能与任何剩余天然牙共存或不共存的其他问题是一种错误的观点。在制定初始治疗计划时,将未来可能出现的问题纳入任何及所有治疗计划至关重要。最近的调查显示,完全无牙的人口比例正在下降。因此,对于所有修复牙医来说,增加对部分无牙种植患者的治疗显然是一个现实的考虑。然而,具有讽刺意味的是,那些病情最严重的患者往往可能不适合进行种植手术。在向患者进行初始诊断时,必须对最终结果的任何妥协和缺点进行详细解释。很明显,牙医面临着一个难以解决的悖论。(摘要截短于250字)