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Biomedical subjects

B Levin

Publications and source records attributed to B Levin.

At least 325 records · Page 18Linked to original sources

An overdenture survey: preliminary report.

The preliminary conclusions from this survey are listed: 1. The exceedingly high incidence of periodontal pathology seems to be the major problem in the long-term use of overdentures. 2. The incidence of caries is fairly low, but it remains a potential problem. 3. Subjective evaluations by the patients are favorable. 4. The overdenture technique as described by Lord and Teel seems to be practical and advantageous. 5. Additional research to find the most effective agent for inhibiting caries in overdenture support roots should be initiated. 6. Need exists for more surveys by other schools, institutions, or prosthodontists. 7. The overdenture is a valid alternative to complete denture therapy.

Adult↗

A reliable reline-rebase technique.

A reliable reline-rebase technique is very important to the general dentist. There are many excellent techniques, but this particular one has provided the most consistent results and patient satisfaction. No technique has any value unless a careful treatment plan is followed and technical procedures are performed with skill and concern.

Dental Occlusion, Centric↗

A practical questionnaire for predicting denture success or failure.

The need and value to predict success and failure in treatment of denture patients are great. The psychological and emotional factors involved are just as important as if not more important than the oral and systemic findings. The value of a simple questionnaire for the edentulous and immediate denture patients has been presented. The authors believe that all schools should present advanced information on the psychological aspects of dental care.

Consumer Behavior↗

Aspects of gastrointestinal tumors during the reproductive years.

During the reproductive years, tumors of the digestive organs are uncommon in women in the U.S.A. Nevertheless, two predisposing factors have been identified and are discussed in this article. The first of them concerns the benign and malignant tumors of the liver thought to be associated with the long-term use of oral contraceptives. The second is the increased incidence of colon cancer in patients with longstanding, chronic ulcerative colitis. Measures aimed at prevention and early detection are reviewed and discussed.

Adenoma↗

Factors influencing local recurrence after abdominoperineal resection for cancer of the rectum and rectosigmoid.

One hundred and fifty-two patients who underwent abdominoperineal resection for cancer of the rectum and rectosigmoid are reviewed. Six physicians were selected to predict which of these patients would have a local recurrence. All information available at the end of the operation was duplicated and submitted to the observers. None of the physicians was able to predict local recurrence significantly better than random. There were 31 local recurrences, i.e. an incidence of 20-4 per cent. Low level of tumour in the rectum, local spread into perirectal fat or serosa, lymph node involvement and age below 60 years at time of operation were the only factors that were statistically related to local recurrence. The strategy for careful follow-up of patients at risk is outlined and a plea is made for a controlled trial of postoperative radiotherapy.

Age Factors↗

A controlled trial of azathioprine in Crohn's disease.

To determine the efficacy of azathioprine in the treatment of Crohn's disease, a 26-week double-blind trial was performed. 20 patients with Crohn's disease, requiring at least 10 mg of prednisone/day over the 3 months prior to entering the study were randomized into placebo (10 patients) and major criterion of success in the trial. There were 7 relapses in the placebo group (5 patients) and 2 relapses in the azathioprine group (2 patients). Complications including fistulae were not affected by the medications. The mean reduction in steriod dosage in the azathioprine group at the end of the trial (-15.5 mg) was greater than in the placebo group (-6.1 mg). These results suggest that azathioprine may permit reduction or discontinuation of steroids without the worsening of symptoms in some patients who appear to require steroids for control of their symptoms. The clinical features of this "AZA-responsive subgroup" remain to be defined.

Adolescent↗