Samet Nachum, Smidt Ami, Samet Naama, Weiss Ervin Izhak
Department of Prosthodontics, Hadassah-Hebrew University, Faculty of Dental Medicine, Jerusalem, Israel.
Quintessence Int. 2002 Jul-Aug;33(7):511-5.
Although the use of an arbitrary facebow and a full-sized articulator can reduce laboratory errors, many dentists do not use a facebow routinely because the procedure seems to be both intricate and time consuming. The purpose of the present study was to evaluate four earpiece-type facebows and the Snow facebow and to compare the time required for registration, the ease of manipulation, and cost-benefit considerations.
Twenty-five dentists who routinely used only the Snow facebow were asked, after a brief explanation, to perform registrations with the Snow facebow and four new-generation, earpiece-type facebows. The time required for each facebow registration was recorded. Dentists were also asked to fill out a questionnaire concerning ease of manipulation and cost-benefit factors.
The Quick facebow was the facebow of choice of most of the dentists because of its favorable design and usage characteristics and cost-benefit ratio. The Artex 3-D facebow proved to be both the easiest and the fastest to manipulate. The Spring-bow and the Whip-Mix Quickmount were next in rank, and the Snow facebow scored the lowest.
The use of earpiece-type facebows is both simple and fast, and practitioners judged this type of facebow to be superior to the Snow facebow.
尽管使用任意面弓和全尺寸牙合架可以减少实验室误差，但许多牙医并不常规使用面弓，因为该操作似乎既复杂又耗时。本研究的目的是评估四种耳塞式面弓和斯诺面弓，并比较记录所需时间、操作的难易程度以及成本效益考量。
25名仅常规使用斯诺面弓的牙医在经过简短解释后，被要求使用斯诺面弓和四种新一代耳塞式面弓进行记录。记录每种面弓记录所需的时间。还要求牙医填写一份关于操作难易程度和成本效益因素的问卷。
由于其良好的设计、使用特性和成本效益比，快速面弓是大多数牙医的首选面弓。Artex 3-D面弓被证明是操作最简单、最快的。弹簧弓和Whip-Mix Quickmount次之，斯诺面弓得分最低。
使用耳塞式面弓既简单又快速，从业者认为这种面弓优于斯诺面弓。
