Ability of Six Curing Lights to Photocure Four Resin-Based Composites in a MOD-Mold: A Double-Blind Study.

OBJECTIVE: The ability of six curing lights to photocure four resin-based composites (RBCs) in a mold simulating a cavity was compared visually. MATERIALS AND METHODS: Four RBCs were photocured using the: Woodpecker B for 2x10s, SmartLite Pro 2x10s, Valo Cordless 2x10s, Valo Cordless 2x3s Xtra power, Valo X 2x10s, Valo X 2x5s Xtra power, PowerCure 2x3s mode, Monet 1x1s and Monet 3x1s, in a mold representing a molar Class II restoration. Immediately after photocuring, the RBC specimens were immersed in a solvent to remove the uncured RBC, after which they were photographed and de-identified. Using a REDCap survey, these images were compared visually to compare the ability of the LCUs to photocure the restorations. RESULTS: There were significant differences in how well the LCUs had photocured the RBCs. The SmartLite Pro and Valo X used for two 10s exposures produced restorations rated as the best cured, and the Monet used for 1 s was rated the worst. CONCLUSIONS: There were visually apparent differences in how well the LCUs could photocure the RBCs. The Monet used for 1 second produced the worst results for all four RBCs.

Hematologic screening tests in patients with operative prostatic disease.

One hundred sixty-five patients with operative prostatic disease were investigated for hematologic abnormalities. The tests were useful in the clinical management of 6 (3.7 per cent) patients. Preoperative hematologic screening tests are recommended in patients with prostatic cancer, potential sepsis, and in patients with a known bleeding tendency.

Gallbladder visualization after intravenous pyelography.

Gallbladder visualization using the newer IVP contrast materials is rare, and occurs in cases of depressed renal function or acute ureteral obstruction. Mechanisms are discussed.

Hematologic problems in urology. Basic mechanisms and clinical approach.

Baxic clotting mechanisms are reviewed. The clinical and laboratory aspects of disseminated intravascular coagulation and fibrinolysis are discussed, and an approach is suggested to those problems encountered by the urologist.

High risk on the highway. How to identify and treat the impaired older driver.

Among older adults who drive, the rate of those involved in fatal crashes rises after age 70. Problem driving in older adults involves visual, cognitive, and motor skills, which may decline with aging and chronic disease. Physicians and other health care providers may not be prepared to evaluate and advise the older patient on the emotion-loaded topic of driving ability. Although it is difficult to identify prospectively a high-risk driver, a targeted history and physical exam are useful clinical tools. Two models are proposed to guide the health care provider and patient through the process of limiting or ending the impaired older driver's time behind the wheel.

[Programming requirements of x-ray computed tomography]. / Programmnoe obespechenie rentgenovskikh komp'iuternykh tomografov.

The results of the technological support for the creation of the software for the first whole body USSR CPT-5000 Tomograph are being discussed. The questions for the consideration: creation of the means totality for the construction of operation pseudoenvironment and usage of the structural programming principles.

[A comparative analysis of schemes of the coordinate scale of present-day computerized x-ray tomographs]. / Sravnitel'nyi analiz skhem pozitsionnoi shkaly sovremennykh rentgenovskikh kompiuternykh tomografov.

A scheme-technical, computational and experimental analysis has been made of different schemes of the coordinate scale of modern computer-aided x-ray tomographs. The authors provide evidence for the concept with the following subdivision: (a) the coordinate scale is divided by a closed ring rule with an insignificant number of bench mark holes; (b) an electronic device which divides the distance between the holes of the rule according to the required number of small-sized samples. The schemes of the indicated concept implementation permit choosing an adequate decision for the scanning systems with different arrangements and parameters.

[Evaluation of the instability of x-rays in the computed tomograph]. / Otsenka nestabil'nosti rentgenovskogo izlucheniia v komp'iuternom tomografe.

The proposed method is aimed at estimation of instability of the intensity of X-ray radiation and its relevance to noise parameters of the estimated data in Computer Tomograph CPT-5000. During the investigation two types of X-ray tubes were used. The experimental results have been obtained as well as special requirements to X-ray intensity instability for the IVth generation X-ray Computer Tomograph unit.

[Features of the construction of the scanning system of tomographs SRT-1000 and SRT-1000M]. / Osobennosti konstruktsii skaniruiushchei sistemy tomografof SRT-1000 i SRT-1000M.

The article may serve as a handbook for the user of the second generation computed X-ray tomographs for human brain examination.

Post-hysterectomy vesicovaginal fistula: treatment by partial colpocleisis.

Urologists have been reticent to approach vesicovaginal fistulas via the vaginal route. The Latzko partial colpocleisis seems to be an easier, faster and less traumatic procedure than advocated in the literature. The success rate is high and the procedure is highly recommended.

Ergonomics, occupational therapy, and computers.

The use of computers in our daily home and work environment is increasing. Occupational therapy computer users and clinicians need to be aware of the psychological and physical adaptations which are required by individuals using video display terminals (VDTs). Ergonomics, the study of the interaction between the worker and the work environment, is dedicated to the promotion of worker health, safety, and productivity. The rehabilitationist's goals have always been to bring the patient to his or her optimal level of functioning, often involving the adaptation of the individual workstation in a retrospective manner. However, it is the role of the ergonomist to design work environments which anticipate and adapt to the physical and psychological needs of its workers. This paper will review basic ergonomic design principles for VDT workstations, which can assist the occupational therapist.

Evaluation of impairment of the upper extremity.

Evaluation of impairment of the upper extremity is the product of a team effort by the physician, occupational therapist, physical therapist, and rehabilitation counselor. A careful recording of the anatomic impairment should be made because this is critical in determining the subsequent functional activities of the extremity. The measurement criteria for clinical and functional evaluation includes condition assessment instruments. Some assess the neurovascular system, others assess movements including the monitoring of articular motion and musculotendinous function. Sensibility assessment instruments measure sympathetic response and detect single joint stimulus, discrimination, quantification, and recognition abilities. A detailed description of each assessment is recorded and physical capacity evaluation is only one component of the entire vocational evaluation. This evaluation answers questions regarding the injured worker's ability to return to his previous job. The work simulator is a useful instrument that allows rehabilitation and testing of the injured upper extremity. Job site evaluation includes assessment criteria for work performance, work behavior, and work environment.