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PubMed1983

Laboratory procedures for the maintenance of a removable partial overdenture.

Laboratory procedures in support of maintenance therapy for a typical patient with a removable partial overdenture were described. These procedures consisted of the fabrication of a gold metal coping and the reline of the prosthesis with autopolymerizing acrylic resin. In designing the coping contours, the technician must consider the path of insertion of the prosthesis and the space requirement for the overlying resin tooth. Reproduction of the dowel preparation is facilitated by using a plastic dowel as part of the coping wax pattern. The removable partial overdenture was relined with autopolymerizing acrylic resin in a reline jig. Tooth-colored acrylic resin was used in the concavity formed by the overdenture abutment to enhance esthetics. The requirement of a coordinated effort between the dentist and the dental laboratory technician is critical to the successful treatment of the removable partial overdenture patient.

Acrylic Resins↗
PubMedDate not supplied

Animal procedure laboratory surveys: use of the animal laboratory to improve physician confidence and ability.

Animal laboratories have been used for many years to teach procedures. Our department has a weekly swine laboratory devoted to training residents, interns and students in resuscitative procedures. Physicians who participated in our swine procedure laboratory over the past three years were queried as to their prelaboratory and postlaboratory comfort levels with six different resuscitative procedures, and 57 (76%) physicians responded. Statistical analysis of the data showed significant improvement in comfort levels for all six procedures. Every responder felt the swine laboratory helped or will help them perform the procedures on humans. We also surveyed all U.S. emergency medicine residency program directors from established programs regarding the status of their animal procedure laboratories, and 67 of the 68 (98%) directors responded. Of these responders, 62% offer an animal procedure laboratory. Overall, 97% of the residency directors rated the laboratory successful, and 97% of the residents rated the laboratory successful. Therefore, we conclude that an ongoing emergency medicine animal procedure laboratory is a valuable tool for improving physician-in-training ability and confidence.

Animals↗
PubMedDate not supplied

The use of removable artificial gingiva in laboratory procedures for periodontal and implant prostheses.

This paper describes a laboratory procedure for use in periodontal and implant prostheses wherein an artificial removable gingiva, which reproduces the patient's gingival architecture, is fabricated on the working cast. This procedure allows the technician to achieve better crown contour and cervical adaptation of the prosthesis and facilitates ceramic procedures.

Dental Implants↗
PubMed1993

Performance evaluation tests of new laboratory procedures or devices: practical reporting criteria.

The publication of papers reporting evaluations of new laboratory procedures and devices has increased rapidly in recent years. As more commercial systems emerge in the market place, and laboratory-based systems disappear, the potential user of the new system turns to his peers for opinions about the function of such systems. Unfortunately, many published reports lack statistical guidance and the reader is too often faced with a recitative about percentage differences and probabilities of significance, frequently reported on unacceptably small sample numbers. This communication offers guidance to those seeking to produce evaluation reports that will be of practical value to others.

Evaluation Studies as Topic↗
PubMed1995

Laboratory procedures for the fabrication of maxillary occlusal bite plane splint.

Clear communication between the dentist and laboratory technician is important for the production of quality work and the saving of valuable chair time at delivery. This article discusses the laboratory procedures used in the fabrication of occlusal bite plane splint. Traditional heat curing, microwave heat processing, and visible light curing techniques are discussed.

Acrylic Resins↗
PubMed1986

A simplified laboratory procedure to select an appropriate antibiotic for treatment of refractory periodontitis.

THE FEASIBILITY OF USING A simplified laboratory procedure to select an appropriate antibiotic for treatment of refractory periodontitis was investigated. Six different antibiotics were added to commercially available CDC-agar plates. Plaque samples from periodontal pockets were inoculated onto the plates. The percentage kill was determined by comparing colony counts on the antibiotic-containing medium with those on the control plates. The three most effective antibiotics were ranked by visual inspection as well as by colony count. It was determined that visual inspection may be used to determine an effective antibiotic.

Ampicillin↗
PubMed1989

Physician utilization of laboratory procedures to monitor outpatients with congestive heart failure.

Little is known about how different types of physicians use laboratory procedures in the management of outpatients with congestive heart failure. We therefore analyzed data from a national survey of randomly selected general practitioners, internists, and cardiologists to assess their management of outpatients with New York Heart Association class II congestive heart failure. Most of the 2704 respondents (90%) scheduled office visits between two and four months apart. Body weight, serum electrolytes, and chest roentgenograms were followed regularly by 98% or more of respondents, at median intervals of one to two months, three to five months, and 12 to 17 months, respectively. Serum digoxin levels in patients taking digoxin were followed by 90% of respondents at a median interval of 12 months. Echocardiography, radionuclide ventriculography, and exercise testing were used by fewer respondents (81%, 61%, and 61%, respectively), each at a median interval of 18 months or longer. Cardiologists were significantly more likely to follow patients using either echocardiography, radionuclide ventriculography, or exercise testing. The estimated yearly cost of following a class II congestive heart failure outpatient varied nearly fourfold from the lowest quartile of physicians ($303) to the highest ($1167). Cardiologists were disproportionately represented among the high-cost users. In addition, physicians who were younger or who practiced in an urban setting were significantly more likely to be high-cost users. Thus, simple laboratory tests were used most frequently to follow patients with heart failure, but differences in use of more expensive tests led to large differences in cost. Test use for similar patients is affected by characteristics of both the physician and practice setting.

Ambulatory Care↗
PubMed1999

Office laboratory procedures, office economics, parenting and parent education, and urinary tract infection.

These authors review four areas of office pediatric practice: office laboratory procedures, office economics, parenting and parent education, and urinary tract infections. Thomas Ball reviews the literature published this past year on physician office laboratories, with updates on the Clinical Laboratories Improvement Amendments, laboratory utilization, and office diagnosis of infectious mononucleosis. Eve Shapiro offers an update on office economics, discussing physician organizations and managed care, and a medical ethics evaluation of medical economics. Burris Duncan provides an update on parenting and parent education, with emphasis on defining "the best interests of the child." Richard Wahl summarizes the past year's publications on pediatric urinary tract infections, reviewing the circumcision debate, dysfunctional voiding, vesicoureteral reflux, and the diagnosis and follow-up of acute pyelonephritis.

Child↗
PubMed1998

Office laboratory procedures, office economics, patient and parent education, and urinary tract infection.

This review provides an update on four areas of office practice: office laboratory procedures, office economics, patient and parent education, and urinary tract infection. Thomas Ball reviews physician office laboratories, with updates on the Clinical Laboratory Improvement Amendments, office proficiency testing, and office testing for streptococcal pharyngitis and Helicobacter pylori. Eve Shapiro reports on office economics, focusing on the influence of managed care on pediatric practice. Burris Duncan provides a review of the new National Institutes of Health asthma guidelines, and challenges us to become more involved in patient education. Richard Wahl reviews urinary tract infections, vesicoureteral reflux, dysfunctional voiding, and appropriate imaging studies. Our approach is to provide pediatricians with useful and practical information for their office practices.

Asthma↗
PubMed1997

Office laboratory procedures, office economics, patient and parent education, and urinary tract infection.

This review provides an update on four important areas in office pediatrics: office laboratory procedures, office economics, patient and parent education, and urinary tract infection. Ball reviews new information about physician office laboratories, with updates on the Clinical Laboratory Improvement Amendments, streptococcal pharyngitis, urinalyses, office stool examination, and information on Helicobacter pylori serology. Shapiro reports on office economics, highlighting new office technologies, physician operated networks, managed care, recent legislation, and the "cost versus quality" debate. Duncan provides a very thought provoking essay on parent and patient education, focusing on improving parenting skills. Wahl reviews the recent literature on urinary tract infections, with emphasis on host-bacteria interactions, diagnostic evaluations, pyelonephritis, renal cortical scarring, and long term follow-up of vesicoureteral reflux. We hope we have provided pediatricians with useful and practical information for their office practices.

Child↗
PubMed2000

Office laboratory procedures, office economics, parenting and parent education, and urinary tract infection.

We again review four areas of interest to office-based pediatricians: office laboratory procedures, office economics, parenting and patient education, and urinary tract infections. Sean Elliott provides an update on the Clinical Laboratories Improvement Amendments (CLIA) and their impact of office practice. Eve Shapiro reviews office economics, focusing on measuring quality of care, use of performance data, costs of new technologies, and the impact of managed care on the medical marketplace. John Walter offers an update on parenting and parent education, with approaches to counseling families about overuse of antibiotics, teen pregnancy, hyperactivity, violence, and asthma. Richard Wahl reviews the recent research on urinary tract infection, with special attention paid to office diagnosis and management, longitudinal studies of children with urinary tract infections, and the controversy surrounding the American Academy of Pediatrics Task Force on Circumcision report.

Adolescent↗
PubMed2001

Office laboratory procedures, office economics, parenting and parent education, and urinary tract infection.

We once again review four areas of interest to office-based pediatricians: office laboratory procedures, office economics, parenting and patient education, and urinary tract infections. Sean Elliott reviews the current status of the Clinical Laboratories Improvement Amendments (CLIA) and their continuing impact on physician office laboratories. Eve Shapiro reviews office economics, this year focusing on managed care, the physician workforce, practice management, and health care financing for the uninsured. Anna Binkiewicz provides an update on parenting and parent education, with recent reports on nutrition and childhood immunizations. Richard Wahl again reviews recent research on urinary tract infection, discussing voiding physiology, dysfunctional voiding patterns, acute urinary retention, urine collection techniques, diagnosis in young infants, and antibiotic prophylaxis.

Antibiotic Prophylaxis↗
PubMedDate not supplied

Development of a procedures laboratory evaluation tool.

Historically, it has been a relatively simple matter to assess students' classroom performance via internally developed evaluations. However, procedures laboratory proficiency of a student has been grossly neglected and has often fallen prey to the subjectivity of the evaluator. Accurate evaluation of students in the laboratory setting requires use of an effective evaluation instrument. The evaluation format described in this article was developed to effectively evaluate and critique the student's proficiency in radiographic positioning.

Alabama↗
PubMedDate not supplied

Prospective trial using Virtual Vision as distraction technique in patients undergoing gastric laboratory procedures.

To determine whether distraction techniques using Virtual Vision, an audiovisual system integrated into a modified pair of glasses, improves tolerance to routine gastric laboratory procedures, a prospective study of 50 patients was done. Patients were allowed to view/hear a travelogue tape during testing. Patients and registered nurses, who performed the procedure, were asked their interpretation of Virtual Vision as a device that improved patient tolerance, impaired the patient's ability to follow directions, or impaired the nurse's ability to perform the procedure. Patients graded the procedure from 1 (unbearable) to 5 (reasonably comfortable) and were asked whether they would use the device for a repeat procedure. For those who had undergone previous procedures, patients were queried regarding their preference for routine testing or Virtual Vision. Improved tolerance to procedures was noted in 82% of the patients as perceived by nurses and patients. Eighteen percent of the nurses and 8% of the patients thought that the auditory insert and glasses impaired the patient's ability to cooperate with the test, whereas 88% and 86%, respectively, thought that Virtual Vision was a valuable distraction technique. Using an ordinal scale for testing tolerance, patients graded their test at a mean of 3.8 (SD 1.25) and 82% expressed a desire to use the system in conjunction with future testing. Twenty-six of 33 patients (79%) who had undergone previous gastric laboratory testing preferred distraction techniques using Virtual Vision to conventional testing. Distraction techniques using a system such as Virtual Vision have the potential to improve patient tolerance to routine gastric laboratory studies.

Adolescent↗
PubMed1999

Lingual orthodontics (part 1): laboratory procedure.

A key factor for successful correction of a malocclusion with lingual orthodontics is optimal bracket positioning. This presentation focuses on the development of an innovative laboratory procedure for indirect bracket positioning using a modified positioning device (TARG Professional) called Transfer Optimized Positioning System (TOP). In contrast to commonly used approaches to indirect bonding such as CLASS and BEST, the TOP System uses a target set-up technique in order to facilitate the 3-dimensional individualized positioning of brackets while allowing the brackets to be placed on the malocclusion model. The reliability and accuracy of this system in both the laboratory and the clinical environment are discussed. This discussion highlights the high precision of the TOP System and its significance in eliminating the usage of second and third order corrective archwire bends in the finishing stage of lingual orthodontic therapy. In other words the TOP System allows for the usage of almost flat orthodontic arch wires to successfully treat a malocclusion with lingual braces. This is the key factor in enhancing the cost effectiveness and success of a lingual treatment concept.

Bicuspid↗
PubMed2004

Comparing the Dr. SEDOC and ADA toothbrushes in three independent laboratory procedures.

OBJECTIVE: The purpose of this research was to compare the Dr. SEDOC toothbrush, tufted with super-tapered bristles, to the ADA standard toothbrush in three laboratory procedures designed to evaluate 1) the cleaning ability of toothbrush bristles at the gingival margin (GMC), 2) interproximal access efficacy (IAE) and plaque removal efficacy, or 3) subgingival access (SA) into, and removal of artificial plaque deposits from under the gingival margin. METHODOLOGY: Efficacy was tested using three published laboratory methods, with pressure-sensitive paper placed around simulated teeth, at a brushing pressure of 250 or 500 g, with horizontal or vertical brushing motions. Twenty-four tests on each toothbrush design were conducted, and results were statistically analyzed using ANOVA. RESULTS: In all three assays, the Dr. SEDOC toothbrush had a significantly superior (p < 0.001) efficacy mean value compared to the ADA toothbrush. CONCLUSION: The Dr. SEDOC toothbrush, with super-tapered bristles, offers the potential for improved cleaning and plaque removal compared to the ADA standard control toothbrush.

American Dental Association↗