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Biomedical subjects

S L Handelman

Publications and source records attributed to S L Handelman.

At least 55 records · Page 3Linked to original sources
PubMed1983

Evaluation of common predictors for selection of postdoctoral dental students.

Certain predictors are traditionally presumed to be reliable measures for selection of candidates for general dentistry training programs. The purpose of this study was to assess the relative value of academic standing, letters of recommendation, and personal interview impressions by comparing them with performance during training. Predictor data were collected from the application files of all postdoctoral trainees in the advanced general dentistry training program at the Eastern Dental Center of the past ten years (N = 154). However, only 102 postdoctoral students had information available for all three predictor criteria. Performance was rated subjectively on completion of training by two faculty members on a six-point rating scale. The highest correlations between predictors and performance were to academic achievement (r = 0.347). Weaker, though statistically significant, correlations were found for the personal interview (r = 0.206) and letters of recommendation (r = 0.192). Although these predictor criteria will continue to be used in the selection of candidates, administrators and selection committees must be aware of the limitations of such criteria in predicting performance.

Education, Dental, Graduate↗
PubMed1983

Impact of general practice residency training on dentists and dental practice.

This study compared dentists who had completed general practice residency (GPR) training programs in 1974-76 with a similar group of dentists who had not (NGPR). Response to a mailed questionnaire indicated that the GPR group performed more oral surgery, periodontal surgery, and complex endodontic procedures and spent more time in the physical evaluation of patients. They also used the medical laboratory more frequently and tended to refer to specialists less often. GPR-trained dentists had more hospital staff appointments, admitted more patients to the hospital, and performed a greater amount and range of services within the hospital than the NGPRs. GPRs tended to subscribe to and read more journals, teach, and publish research papers. There were no differences in participation in continuing education courses and professional meetings or in self-esteem as a general dentist.

Dental Auxiliaries↗
PubMed1983

Career development subsequent to general practice training.

Career development after graduation from the advanced program in general dentistry at the Eastman Dental Center was studied by means of a mail survey. The majority of those who graduated (63.2 percent) over a ten-year period (1971-1981) practiced general dentistry. Fewer graduates specialized in recent years. Performance criteria in dental school or in the advanced training program could not predict later specialization. Dental school performance also proved to be of minimal value in determining who pursued an advanced degree or became involved in teaching. However, those exhibiting better performance in the advanced program in general dentistry often pursued advanced degrees, research, or teaching. Approximately 55 percent of those who graduated from this advanced program during the ten-year period were involved in full- or part-time teaching, and 35 percent were involved in research.

Career Choice↗
PubMed1980

Effect of an autopolymerizing sealant on viability of microflora in occlusal dental caries.

A total of 106 molars with occlusal caries were sealed with an autopolymerizing sealant. Samples of the carious dentin were obtained 1, 3, 7, 14 and 28 d, and 2, 4, 6, and 12 months after sealant placement. The samples were cultured on enriched nonselective medium, a streptococcal medium, a Streptococcus mutans medium, and a medium for acidogenic microorganisms. The bacterial counts were compared with control samples obtained from nonsealed occlusal carious lesions, half of which had acid conditioner applied to the occlusal surface for 1 min prior to sampling. The mean total viable counts decreased by approximately 99.9% during the 1-year study period, from 925.1 x 10(4) CFU/mg of sample to 0.9 x 10(4) CFU/mg of sample. Statistically, there was a very strong linear relationship (P less than 0.001) between the reduction in bacterial counts and time. A similar reduction was observed for the total streptococcal count and the S. mutans count. The etching procedure itself reduced the number of cultivable organisms by about 75%. Sealant material that was polymerized directly in culture media did not result in any inhibition of bacterial growth. Although slight fluctuations in the relative proportion of the microflora were observed at the different sampling intervals, there were no significant changes in the relative distribution of bacterial types with time.

Acid Etching, Dental↗
PubMed1980

Nocturnal masseter muscle activity and urinary catecholamine levels in bruxers.

Nocturnal electromyographic recordings of masseter muscle activity were performed on 20 bruxist and ten control subjects. Each subject collected two 24-hour urine samples. An analysis of urinary catecholamine content was performed. A positive relationship was found between increased epinephrine content and high levels of nocturnal masseter muscle activity.

Bruxism↗
PubMed1978

In vitro assessment of marginal leakage of six enamel sealants.

The findings of this study support previous data on marginal leakage using enamel sealants in vitro. All sealants tested except Epoxylite 9075 were described for this study. However, all in vitro studies have limitations, and the ultimate evaluation of sealant behaviour must be based on in vivo experimentation.

Absorption↗
PubMed1977

A computerized system for the evaluation of community dental programs.

This paper reports on a relatively uncomplicated and inexpensive computerized system for prospective evaluation of clinical dental programs from the point of view of effectiveness and efficiency. Availability of this system does away with some high start-up costs. Three forms of input data, new case information, examination findings and operative procedure information, are regularly collected on data sheets and specially designed Port-a-punch IBM cards. Easily interpreted output tables are generated monthly on such variables as completed cases according to treatment series and clinician, number of various procedures performed by clinicians, etc. Productivity is measured, in part, by application of monetary constants to procedure data. This paper describes the computer programs used, the cost of setting up and operating the system (which is within the budgetary constraints of most small, publicly funded programs) and the benefits that can be derived from the use of such a system. The system provides prompt feedback of relevant administrative data, thus allowing for relatively quick response to problems. Use of the system reduces clerical needs to a minimum and the program can easily be implemented on any except the very smallest digital computer.

Community Dentistry↗
PubMed1976

Two-year report of sealant effect on bacteria in dental caries.

Teeth in which caries had penetrated the pits and fissures were sealed with an ultraviolet-light-polymerized sealant. Samples of carious dentin were taken from teeth that were not sealed and from teeth that were sealed, up to two years after the sealant had been placed. The major reduction in viable microorganisms occurred during the first two weeks, and there was a gradual reduction in the total count thereafter. At the end of two years, there was a 2,000-fold decrease in the number of cultivable microorganisms. Preliminary clinical and radiographic findings suggest that there was no progression of the carious lesions, but further studies are needed before this technique can be considered an alternative to conventional procedures.

Bacteria↗
PubMed1976

Time line analysis of dental restorative procedures related to dynamic instrument location.

The detailed timing and recording of the sequence of tasks for dental restorative procedures was used to evaluate the effects of the location of the hand-piece and three-way syringe on the dental team performance. Sixty-four audiovisual tapes of ten dental teams, performing complete, actual restorative procedures, were made in two dental operatories that differed only in the location of the dentist's instrument cabinet. Total treatment sessions were divided into four major divisions and expressed as a percentage of the total time: patient preparation, 14%; tooth preparation, 32%; tooth restoration, 50%; and patient release, 4%. Tooth preparation and restoration took longer with the instruments in the 8-o'clock location than with them in the 12-o'clock location. When the teams were reversed, that is, changed to the other operatory, there was an increase in tooth preparation and restoration time. Instrument transfer and use, especially for the three-way syringe, tended to take longer for the 8-o'clock location. In contrast, the dentist's idle time tended to increase working with the 12-o'clock instrument location because of differences in work loads. Time line analysis provided a means of evaluating the impact of instrument location as well as an approach to assessing individual team performance.

Dental Assistants↗
PubMed1975

Comparison of the effects of two handpiece locations on dental team performance.

Using audiovisual tapes of 150 actual dental treatment sessions, five dental teams working with handpieces positioned in the 8-o'clock location were compared with five dental teams working with hand pieces positioned in the 12-o'clock location. Criteria used for analysis were frequency and duration of instrument transfer, critical incidents that interfered with instrument movements, and subjective responses of the dental team members. The data showed that the handpiece transfers were faster and more frequent in the 12-o'clock location where they were done via the assistant. However, the reverse was true for transfers of the three-way syringe. Most critical incidents occurred with equal frequency and were common to both rooms, but some were related to instrument location. The subjective responses indicated that the assistant working with the 12-o'clock instrument location had many more tasks and must be more highly trained.

Dental Assistants↗