Effect of a hospital-based oral health-education program on Iranian staff: evaluating a theory-driven intervention

Health changes from trans-theoretical model-based education in older adults with mild cognitive impairment: A randomized controlled trial

BACKGROUND

Low awareness and misconceptions surrounding mild cognitive impairment highlight the urgent need for effective health education. Reluctance to seek intervention and poor adherence to management strategies make behavior-oriented health education essential.

OBJECTIVE

To assess the effectiveness and clinical significance of a trans-theoretical model-based health education program on cognitive-behavioral outcomes in older adults with mild cognitive impairment.

DESIGN

A two-arm and assessor-blinded randomized controlled trial.

SETTINGS AND PARTICIPANTS

100 community-dwelling older adults with mild cognitive impairment in Huzhou, China.

METHODS

Participants were randomly assigned to a trans-theoretical model-based health education program (weekly 45-60 min sessions for 8 weeks, followed by 12 weeks of unsupervised practice) or a wait-list control group receiving standard health education. Disease knowledge, behavioral stage, and adherence to health management behaviors were assessed at baseline, 8-week, and 20-week. Effects were evaluated at the group level via generalized estimating equation and at the individual level using reliable and clinically significant change.

RESULTS

The trans-theoretical model-based health education program demonstrated significant effects over the wait-listed control. Generalized estimating equation analyses showed statistically significant effects on behavioral stage (β8-week = 1.04, 95%CI = 0.34-1.75; β20-week = 1.72, 95%CI = 0.95-2.49), disease knowledge (β8-week = 1.14, 95%CI = 0.26-2.02; β20-week = 1.78, 95%CI = 0.87-2.69), and adherence to health management behaviors (β8-week = 6.20, 95%CI = 2.03-10.37; β20-week = 10.74, 95%CI = 6.47-15.01) at both measured intervals. Additionally, global cognitive function (β8-week = 0.60, 95%CI = - 0.18-1.38; β20-week = 2.42, 95%CI = 1.64-3.20), Purdue Pegboard Test Assembly and Bimanual Tasks (β8-week = 0.16/0.38, 95%CI = - 0.21-0.53/-0.18-0.94; β20-week = 0.96/1.80, 95%CI = 0.57-1.35/1.17-2.43) improved significantly over time. Reliable and clinically significant change analyses at 8 weeks indicated significant improvements in the intervention group: 57 % of participants improved in disease knowledge (22 % clinically significant), 90 % in adherence to health management behaviors (17 % clinically significant), and 61 % in global cognitive function (10 % clinically significant). By 20 weeks, these rates increased to 63 % (29 %), 100 % (25 %), and 78 % (27 %). However, non-significant improvements in depression symptoms and sleep quality were found at individual-level assessment.

CONCLUSIONS

This study shows that the trans-theoretical model-based health education program effectively enhances cognitive-behavioral health outcomes in older adults with mild cognitive impairment, with benefits persisting for 12 weeks. Future research should further explore the potential mechanisms underlying the cognition and behavior-enhancing effects of this program.

REGISTRATION NUMBER

ChiCTR1900028351.

The effect of training intervention based on the theory of planned behavior on oral and dental health behaviors in pregnant women

BACKGROUND

Pregnancy is a transient physiological condition that causes adverse oral and dental consequences. The present study aimed to determine the effect of a training intervention based on the theory of planned behavior on oral and dental behaviors in pregnant women.

METHODS

This quasi-experimental study was conducted on 140 pregnant women (70 in the intervention group and 70 in the control group) supported by comprehensive health centers on the outskirts of Shiraz, Iran, in 2019-2020. The sampling was performed in each center by a simple random method. The tool included a demographic characteristics questionnaire, a questionnaire based on the theory of planned behavior, a self-care behavior questionnaire, and checklists for recording DMFT(Decayed, Missing due to caries, and Filled Teeth(DMFT)) and dental plaque indices. The questionnaires were completed before and 3 months after the intervention by both groups. The intervention group received six 50-min training sessions. The data were analyzed using SPSS 22, the chi-squared test, independent t-test, paired t-test, and descriptive statistics (p < 0.05).

RESULTS

The mean ages of the intervention and control groups were 32.28 ± 6.14 and 31.84 ± 6.71, respectively. The results showed that the average scores of all constructs of the theory of planned behavior, dental plaque indices (PI), and MDFT in the intervention group significantly changed after the intervention (p < 0.001).

CONCLUSION

According to the results, training based on the theory of planned behavior was effective on dental and oral health behaviors in pregnant women and improved the clinical results of their self-care behaviors. Therefore, training sessions will increase the knowledge of pregnant women, and providing timely consultations and examinations can be helpful and effective in developing oral and dental health behaviors in pregnant women.

Theory-based behavioral change interventions to improve periodontal health

Periodontal disease is a significant global health burden affecting half of the world's population. Given that plaque and inflammation control are essential to the attainment of periodontal health, recent trends in preventive dentistry have focused on the use of behavioral models to understand patient psychology and promote self-care and treatment compliance. In addition to their uses in classifying, explaining and predicting oral hygiene practices, behavioral models have been adopted in the design of oral hygiene interventions from individual to population levels. Despite the growing focus on behavioral modification in dentistry, the currently available evidence in the field of periodontology is scarce, and interventions have primarily measured changes in patient beliefs or performance in oral hygiene behaviors. Few studies have measured their impact on clinical outcomes, such as plaque levels, gingival bleeding and periodontal pocket reduction, which serve as indicators of the patient's disease status and quality of oral self-care. The present narrative review aims to summarize selected literature on the use of behavioral models to improve periodontal outcomes. A search was performed on existing behavioral models used to guide dental interventions to identify their use in interventions measuring periodontal parameters. The main models were identified and subsequently grouped by their underlying theoretical area of focus: patient beliefs (health belief model and cognitive behavioral principles); stages of readiness to change (precaution adoption process model and transtheoretical model); planning behavioral change (health action process approach model, theory of planned behavior and client self-care commitment model); and self-monitoring (self-regulation theory). Key constructs of each model and the findings of associated interventions were described. The COM-B model, a newer behavioral change system that has been increasingly used to guide interventions and policy changes, is discussed with reference to its use in oral health settings. Within the limitations of the available evidence, interventions addressing patient beliefs, motivation, intention and self-regulation could lead to improved outcomes in periodontal health. Direct comparisons between interventions could not be made due to differences in protocol design, research populations and follow-up periods. The conclusions of this review assist clinicians with implementing psychological interventions for oral hygiene promotion and highlight the need for additional studies on the clinical effects of behavioral model-based interventions.