Integrating 3D facial scanning in a digital workflow to CAD/CAM design and fabricate complete dentures for immediate total mouth rehabilitation

PURPOSE: To integrate extra-oral facial scanning information with CAD/CAM complete dentures to immediately rehabilitate terminal dentition. MATERIALS AND METHODS: Ten patients with terminal dentition scheduled for total extraction and immediate denture placement were recruited for this study. The patients were submitted to a facial scanning procedure using the in-office PritiMirror scanner with bite registration records in-situ. Definitive stone cast models and bite records were subsequently submitted to a lab scanning procedure using the lab scanner (iSeries DWOS; Dental Wings). The scanned models were used to create a virtual teeth setup of a complete denture. Using the intra-oral bite records as a reference, the virtual setup was incorporated in the facial scan thereby facilitating a virtual clinical evaluation (teeth try-in) phase. After applying necessary adjustments, the virtual setup was submitted to a CAM procedure where a 5-axis industrial milling machine (M7 CNC; Darton AG General) was used to fabricate a full-milled PMMA immediate provisional prosthesis. RESULTS: Total extractions were performed, the dentures were immediately inserted, and subjective clinical fit was evaluated. The immediate provisional prostheses were inserted and clinical fit, occlusion/articulation, and esthetics were subjectively assessed; the results were deemed satisfactory. All provisional prostheses remained three months in function with no notable technical complications. CONCLUSION: Ten patients with terminal dentition were treated using a complete digital approach to fabricate complete dentures using CAD/CAM technology. The proposed technique has the potential to accelerate the rehabilitation procedure starting from immediate denture to final implant-supported prosthesis leading to more predictable functional and aesthetics outcomes.

Asthma insights and reality in the United Arab Emirates

The burden of asthma in the United Arab Emirates [UAE] and the extent to which guidelines are being followed for optimum asthma control are largely unknown. This survey assessed the current level of asthma control, the burden of the disease, and adherence to asthma guidelines by patients. A face-to-face interview of 200 asthmatics in the UAE was conducted. In addition to the questionnaire administered by expert interviewers, each respondent self-completed an Asthma Control Test. The sample was stratified by region within the country and sampled proportionately. Sudden severe attacks of asthma were reported by 64% in the past year. Day time symptoms and night time symptoms were reported by 57.5% and 35.5%, respectively, in the past 4 weeks. Overall, 52.8% of the children and 17.1% of the adults missed school and work in the past year, respectively. The percentage of asthmatics that had emergency room visits within the past year was 27.5%, and 4% were hospitalized. Only 5.5% used inhaled corticosteroids in the past year and 47.5% were on short-acting beta-2 agonists. Only 17.8% ever owned a peak flow meter and only 30% ever had a lung function test. Only 17% had scheduled follow-up and 66% were followed-up by general practitioners. This survey shows that the current level of asthma control in the UAE is far from optimal. Therefore, it is necessary to increase the awareness among patients and update doctors about asthma control guidelines for attaining optimal asthma control, and thus reducing the burden of the disease

Acne neonatorum in the eastern Saudi Arabia.

BACKGROUND: Acne neonatorum (AN) is characterized by a facial eruption of inflammatory and noninflammatory acne lesions in a neonate. Hyperactivity of sebaceous glands, stimulated by neonatal androgens, is implicated in its pathogenesis. AIM: To elucidate the clinical profile of AN in eastern Saudi Arabia. METHODS: All patients diagnosed with AN in King Fahd Hospital of the University in Khobar, Saudi Arabia, during the year 2005 were evaluated clinically. RESULTS: AN was diagnosed in 26 patients (male/female ratio 1:1). The lesions included mainly facial comedones (30.8%); papules and pustules (15.3% each); and combination of papules, pustules, and cysts (53.4%). CONCLUSION: All patients recovered spontaneously. In 50% of the cases, one of the parents reported having had acne vulgaris during adolescence. Hereditary factors seem to play a significant role in our series.