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OBJECTIVES To determine the dimensions of the Schneiderian membrane using limited cone beam computed tomography (CBCT) in individuals referred for dental implant surgery, and to determine factors influencing the mucosal thickness. MATERIAL AND METHODS The study included 143 consecutive patients referred for dental implant placement in the posterior(More)
BACKGROUND Evidence on the effectiveness of highly active antiretroviral therapy (HAART) for HIV-infected individuals is limited. Most clinical trials examined surrogate endpoints over short periods of follow-up and there has been no placebo-controlled randomised trial of HAART. Estimation of treatment effects in observational studies is problematic,(More)
INTRODUCTION The purpose of the present study was to evaluate the thickness and the anatomic characteristics of the Schneiderian membrane and cortical bone using limited cone beam computed tomography (CBCT) scannning in patients referred for planning of apical surgery of maxillary molars. METHODS This controlled study included 2 cohorts of patients (n =(More)
UNLABELLED To determine the frequency of incidental maxillary sinus findings using cone-beam computed tomography (CBCT) images made for orthodontic purposes. SETTING AND SAMPLE POPULATION One hundred thirty-nine consecutive CBCTs from 134 patients treated at the Department of Orthodontics and Dentofacial Orthopedics, University of Bern, Bern, Switzerland.(More)
AIMS/HYPOTHESIS A computer model was developed to determine the health outcomes and economic consequences of different combinations of diabetes interventions in newly diagnosed patients with Type I (insulin-dependent) diabetes in Switzerland. METHODS We modelled seven complications of diabetes: hypoglycaemia, ketoacidosis, acute myocardial infarction,(More)
OBJECTIVES To analyze the dimensions and anatomic characteristics of the nasopalatine canal and the corresponding buccal bone plate of the alveolar process, using limited cone-beam computed tomography (CBCT) imaging. MATERIAL AND METHODS Partially edentulous patients scheduled for CBCT imaging for further radiographic evaluation of a prospective implant(More)
PURPOSE The purpose of the present study was to evaluate the thickness and anatomic characteristics of the sinus membrane using cone beam computed tomography (CBCT) in patients evaluated for implant surgery in the posterior maxilla. MATERIALS AND METHODS The study included 131 consecutive patients referred for dental implant placement in the posterior(More)
The classical decision rule of cost-effectiveness analysis uses a threshold cost-effectiveness ratio as a cut-off point for resources allocation. One assumption of this decision rule is complete divisibility of health care programs. In this article, we argue that health care programs cannot be completely divisible since individuals are not divisible.(More)
BACKGROUND Drug addiction is a major problem in many societies. The opiate maintenance program includes a prospective cohort of injecting drug addicts, treated with opiates such as heroin intravenously. An important aim of this program is to keep patients under medical supervision in order to reduce the health hazards associated with illicit drug(More)
Placement of dental implants may improve the retention and stability of complete dentures in edentulous patients. Treatment costs, however, substantially increase with implant treatment. We therefore performed a stochastic cost-effectiveness analysis, comparing implant-supported over-denture prostheses (4 implants), implant-retained overdentures (2(More)