Radiographic interpretation of experimentally produced bony lesions.
Abstract Simulated bone-destroying lesions were created at the apices of two molars and four premolars in a sectioned mandible. All radiographic variables other than bone loss were strictly controlled. Results indicated that in the premolar region it is possible to detect radiographic change without involvement of the junctional or cortical bone, at least to a greater degree than in the molar region.
Detectability of simulated apical lesions on mandibular premolars and molars between radiographic intraoral and cone-beam computed tomography images: an ex vivo study
Adequate endodontic diagnostic is essential when making a therapy decision. Radiographic imagining acquisition methods (IAMs) are fundamental apical lesions of endodontic (ALE) origin diagnose tool. Thus, the aim of this research was to compare the simulated apical lesions (SALs) diagnose potential of digital intraoral radiography (DIR) and cone-beam computed tomography (CBCT), if there is a relationship between the IAMs, SALs-depth and their correct diagnose likelihood in human mandibular specimens’ datasets. 1024 SALs were prepared in cancellous and cortical bone with different penetration depths. The SALs-stages were radiographed with CBCT and DIR. The IAMs were randomly evaluated by 16 observers in two trials. Possible SAL findings were analyzed according to a five-point scale. The null hypothesis established that SALs detection accuracy does not differ between CBCT and DIR. Significantly differences (first 0.935 and second trial 0.960) were found for the CBCT area under the curve when compared with the DIR (first 0.859 and second trial 0.862) findings. SALs of smaller size were earlier detected by CBCT. In SALs without cortical involvement the probability of detection increased from 90 to 100%. The SALs-depth had the highest detectability influence on cancellous bone lesions and CBCT SALs detectability was 84.9% higher than with DIR images. The CBCT diagnose reproducibility was higher than the one of DIR (Kappa CBCT 75.7–81.4%; DIR 53.4–57.1%). Our results showed that CBCT has a higher SALs IAM diagnosing accuracy and that SALs detection accuracy incremented as the SALs-size increased.
Preparing for group analytic psychotherapy: meeting the new patient
Preparing for group analytic psychotherapy—the patient and yourself as a therapist—is apparently done in many ways and still invested with much controversy and ambivalence. Some say, they do no selection or assessment at all. The patients or clients are taken from the waiting list in alphabetic order. Other therapists—mainly those working in National Health Services—use several assessment interviews before including patients into short- or long-term groups. Either way, this article revives some research results about assessment and hopes to inspire therapists in their first contact with the patient by presenting some examples from a clinical outpatient practice in a mental health service.