Rushton V E, Horner K
Department of Oral and Maxillofacial Medicine and Surgery, University Dental Hospital of Manchester.
Br Dent J. 1994 Nov 5;177(9):325-31. doi: 10.1038/sj.bdj.4808605.
Dentists are now advised to use film holders as an aid to intra-oral radiography. The aim of this investigation was to compare a range of commercially available film holders for periapical radiography with the traditional bisecting angle technique using the patient's finger as support for the film, in terms of the ease of use for the dentist and patient comfort. Twelve general dental practitioners (GDPs) were asked to perform 50 periapical examinations using their conventional (bisecting angle) technique (BA) followed by 50 using, in turn, four film holders: the Stabe (S), the Eggen (E), the Rinn (R) and the 'Superbite' devices (SB). There was no difference between BA, S and SB techniques in terms of difficulty experienced by the GDPs. However, both E and R film holders led to an increase in examinations reported as 'difficult' to perform. There was no difference in patient discomfort between the BA and SB techniques, but the use of the E and R film holders and, to a lesser degree, the S film holder was associated with increased discomfort. There was no consistent association between dentists' assessments of examinations as 'difficult to perform' and patients' opinions on discomfort. It is concluded that SB film holders provide a simple means of intraoral radiographic positioning with no increase in patient discomfort.
现在建议牙医使用胶片夹辅助口腔内放射摄影。本研究的目的是比较一系列市售的根尖周放射摄影胶片夹与传统的分角线投照技术（使用患者手指支撑胶片）在牙医使用的便捷性和患者舒适度方面的差异。12名普通牙科医生被要求先用传统的（分角线投照）技术（BA）进行50次根尖周检查，然后依次使用四种胶片夹进行50次检查：Stabe（S）、Eggen（E）、Rinn（R）和“Superbite”装置（SB）。就普通牙科医生所经历的难度而言，BA、S和SB技术之间没有差异。然而，E和R胶片夹导致报告为“难以操作”的检查次数增加。BA和SB技术在患者不适感方面没有差异，但使用E和R胶片夹以及在较小程度上使用S胶片夹与不适感增加有关。牙医对检查“难以操作”的评估与患者对不适感的看法之间没有一致的关联。结论是，SB胶片夹提供了一种简单的口腔内放射摄影定位方法，且不会增加患者的不适感。
