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Biomedical subjects

W F Waggoner

Publications and source records attributed to W F Waggoner.

14 recordsLinked to original sources
PubMed1989

Microabrasion of human enamel in vitro using hydrochloric acid and pumice.

The rubbing application of a hydrochloric acid-pumice mixture has been advocated for the removal of fluorotic-like areas of permanent teeth. However, there have been no previous reports as to the amount of enamel removed during this process. The objective of this project was to measure the amount of enamel lost during successive rubbing applications of an 18% HCl-pumice mixture. Nine extracted permanent molars were mounted in die stone, and each was subjected to 10 sequential 5-sec rubbing applications of an 18% HCl-pumice mixture. After rubbing for 5 sec, the teeth were rinsed with water for 10 sec and then thoroughly dried. Enamel loss was measured to the nearest micron utilizing a measuring microscope with 3-dimensional digital stage positioning. Measurements were taken at the consistent x,y coordinates of three points on the tooth surface after each application. The change in the z coordinate, representing the spatial change in the location of the enamel surface, was recorded for each point after each application on the tooth. Regression analysis revealed enamel loss of 12 microns after the initial application, and an average of 26 microns of enamel loss after each successive application. The regression coefficient was significant at P less than 0.001.

Dental Enamel↗
PubMed1989

Comparison of two methods designed to improve pediatric dental case presentations utilizing videotapes.

This study compared the effectiveness of two methods of teaching the skills required for dentist-parent pediatric case presentations. Seventy-two senior dental students were videotaped presenting a child's case presentation to a parent. The students were then randomly assigned to one of two groups. Students in Group 1 viewed and evaluated a model videotape of the principal investigator presenting a case to a parent. Students in Group 2 viewed their previously videotaped presentation. Both groups evaluated performance on the tapes using a list of 25 performance-specific criteria identified as important for a case presentation. Following this evaluation, 36 students were able to be taped while presenting a second case to another parent. One investigator blindly evaluated each taped presentation using the 25 criteria. Students who viewed the model videotape demonstrated a significant improvement in performance from their first presentation (p = 0.0044). Students who evaluated their own tape showed no significant improvement (p = 0.8830). Students perceived both methods to be helpful, minimally stressful, and requiring little time.

Dentist-Patient Relations↗
PubMed1986

Conscious sedation in predoctoral pediatric dentistry programs.

A survey of predoctoral pediatric dentistry programs in American dental schools was conducted to determine the extent of didactic and clinical training in pediatric conscious sedation. Fifty-four of 59 programs (92 percent) returned usable surveys. The results indicated that there exists a wide range of teaching practices, both in numbers and types of sedations experienced. Fifty-six percent of the respondents reported that students received some degree of clinical experience. Sedation was achieved most commonly with chloral hydrate or hydroxyzine administered orally. Predoctoral programs without an affiliated postdoctoral program were much more likely to practice conscious sedation than those that trained postdoctoral students. The reason most frequently listed for the nonuse of sedation in the predoctoral clinic was philosophical opposition to pharmacological management at this level of training. A majority of the respondents believed that improved monitoring practices and documentation of cases would result from the recent adoption by the American Academy of Pediatric Dentistry of guidelines for conscious sedation.

Anesthesia, Dental↗
PubMedDate not supplied

The experiences of women pediatric dental residents: a survey.

A survey of 430 female pediatric dentists in the United States determined concerns and experiences they had during their advanced training programs. The return rate was 54%. Up to 83% (24) of the women who were pregnant during their residencies asked not to be exposed to certain environmental hazards during pregnancy and the postpartum period. They requested that program directors establish policies on known environmental hazards. Eighty-eight women (41%) commented that programs should offer flexible, preestablished and preannounced maternity leave policies. Survey respondents also expressed concerns about personal safety (5%), the lack of female role models (9%), and the need for more information on business management (30%). When the women were analyzed according to age, the following were significant (P less than .05): professional acceptance was of greatest concern to women ages 41-48; pregnancy and maternity leave, and balancing career with parenthood, significantly concerned women 25-32; and women ages 33-40 said business management was the issue causing the greatest frustration as a practicing pediatric dentist. While most respondents felt that they have the same professional opportunities as men, their greatest frustrations are a lack of acceptance by the professional and lay communities and trying to balance a career and motherhood.

Adult↗
PubMedDate not supplied

Attitudes of program directors toward women in pediatric dentistry training programs.

The number of women entering pediatric dentistry graduate programs is increasing. A formal survey was conducted in the fall of 1990 to determine what impact, if any, this increase is having on the programs. The survey sample consisted of the 57 pediatric dentistry graduate program directors from the United States and Canada. The survey form included program data about gender distribution in the current and previous classes, and female faculty distribution within the programs. The survey requested information about the attitudes of various groups of individuals who interacted with the residents relative to the gender of the resident and again, relative to whether the resident was pregnant. Inquiry was made concerning maternity leave policies and selected treatment scenarios involving pregnant residents. Finally, questions were asked about motivational factors, personal priorities, and policy change for female vs. male residents. Fifty forms were returned for a return rate of 88%. The 48 forms analyzed revealed that 52% of current classes are female and 51% of applicants for 1991 were female. Women comprise 23% of full-time and 26% of part-time faculty. There was no single issue perceived by program directors as a group to be a significant concern or problem relating to gender. Program directors would consider removing pregnant females from contact with combative patients (83%) and environmental hazards (85%), but fewer would consider removing them from contact with for HIV+ or Hb+ patients.

Administrative Personnel↗
PubMedDate not supplied

Parental attitudes toward behavior management techniques used in pediatric dentistry.

Previous studies evaluating parents' attitudes toward behavior management techniques used in pediatric dentistry suggest that parental attitudes are generally negative. The purpose of this study was to reexamine this issue by comparing the effect of prior explanation on parental acceptance of eight behavior management techniques. Videotaped segments were made of children's dental appointments containing examples of eight behavior management techniques. One group of 40 parents viewed a videotape which provided no explanation for each technique before it was shown. Another group of 40 parents viewed a videotape which provided no explanation of the techniques. The parents then were asked to rate the acceptability of each technique using a visual analogue scale. Results indicated that the informed parents were significantly more accepting of behavior management techniques than the uninformed parents but both groups were generally positive about the techniques studied. Further, parents reporting greater stress were less accepting of the techniques studied.

Adult↗
PubMedDate not supplied

Comparison of Kodak D-speed and E-speed x-ray film in detection of proximal caries.

Due to the differences in the findings of earlier studies, it was decided to investigate further and compare the two film types. This study compared the radiographic images of proximal caries lesions on D-speed radiographic film with those seen on an E-speed radiograph. No significant difference was found in the ability of dentists to diagnose.

Densitometry↗