Combining alprazolam with systematic desensitization therapy for dental injection phobia.

To determine whether a benzodiazepine facilitates systematic desensitization, 144 subjects with dental injection phobia received systematic desensitization in combination with placebo or one of two doses of alprazolam (0.5mg or 0.75mg). Systematic desensitization therapy included computer-controlled presentation of digitized video segments followed by in vivo exposure segments, culminating in an actual dental injection. Subjects advanced to the next hierarchy segment when low anxiety was reported during a segment. Alprazolam and placebo groups progressed at the same rate. The 0.75mg group had elevated heart rates while watching video segments compared with placebo. In a subsequent behavioral avoidance test (during which subjects were randomized to a new drug condition), there was no indication that state-dependent learning had occurred. Dental fear was reduced similarly in all groups for 1 year after study completion. No advantage was found to combining alprazolam with systematic desensitization for dental injection phobia.

An ABCD program to increase access to dental care for children enrolled in Medicaid in a rural county.

OBJECTIVES: The Access to Baby and Child Dentistry (ABCD) Program addresses the needs of families in obtaining dental care. In this study, the program was evaluated in rural Stevens County, Washington. Aims were to assess utilization of dental services, average dental expenditures per child, and oral health status. METHODS: Medicaid-enrolled children aged 1-4 years were randomly assigned to the ABCD program (n=216) or to regular benefits (n=221). An outreach worker contacted each ABCD family and provided an orientation. Dental care utilization and expenditures were calculated from claims. A posttest-only design was used to evaluate oral health status. RESULTS: An enrollment effect was seen in ABCD, but the difference between groups was not sustained. There was a doubling of utilization between groups for the youngest cohort, while the others showed no differences. In the first year the rate was higher for the entire ABCD group than for the children not in ABCD (34.0% vs 24.7%). Thirty-three percent of ABCD children (70/212) who had visited the dentist had >1 appointment compared to 21.5 percent (47/219) for the children not in ABCD who had visited the dentist. There was no overall difference in expenditures, while expenditures for preventive services were greater for ABCD. ABCD children had fewer teeth with initial caries. The average incremental cost per child per initial lesion prevented was 31.44 dollars. CONCLUSION: ABCD most benefited the youngest cohort of children and improved health.

Dental fear in a special needs clinic population of persons with disabilities.

This study reports findings from a survey of dental fear in a special needs dental clinic population. Subjects were recruited from the University of Washington's Dental Education in Care of Persons With Disabilities (DECOD) clinical program (n = 132). Dental fears were assessed using the Kleinknecht Dental Report. Fear levels were examined among patients with differing categories of primary disabilities and between genders, races and educational levels. Some level of dental fear was reported by 43.2% of the respondents, indicating that dental fear may be an important factor in dental care for this population. Gender and educational level were significantly associated with fear levels (both p < 0.05). Significant differences in fear levels were found between individuals with differing classes of disability. Accompanying caregivers also were interviewed (n = 72) to allow for a comparison of patient and caregiver perceptions. Both patient and caregiver were interviewed whenever possible to create paired reports. Generally, caregivers significantly overestimated fear levels compared with patients (p < 0.01). However, when scores were compared in matched caregiver-patient analyses, the fear scores were not significantly different, indicating that caregivers accurately estimated their client's level of dental fear. A regression model including disability group, gender, and years of education was significant for predicting fear level as measured by the Kleinknecht survey (p = 0.02). We conclude that dental fear may be a significant, though little understood problem for a population of persons with disabilities as well as for their oral care providers, and that further investigation is needed.

Beliefs about professional ethics, dentist-patient communication, control and trust among fearful dental patients: the factor structure of the revised Dental Beliefs Survey.

The revised version of the Dental Beliefs Survey (DBS-R), intended to measure three dimensions of the patient dentist relationship as perceived by the patient, namely Ethics, Communication and Control, was tested in a confirmatory factor analysis. Five different models for the internal structure of the questionnaire were tested. The final model, a 5-factor solution, basically including the 3 assumed dimensions as well as the re-introduced dimension Trust covered in the first version of the DBS plus a global factor including all items, yielded an acceptable fit. This model also omits 4 items from DBS-R, i.e. items 3, 11, 18, and 28. The reduced DBS-R is recommended for clinical use when assessing the patient's perception of the relationship to the dentist, including both trust and ethical behavior.