Motivators and barriers to oral hygiene self-care among adolescents in Malaysia: A qualitative study

Optimizing an adaptive digital oral health intervention for promoting oral self-care behaviors: Micro-randomized trial protocol

Dental disease continues to be one of the most prevalent chronic diseases in the United States. Although oral self-care behaviors (OSCB), involving systematic twice-a-day tooth brushing, can prevent dental disease, this basic behavior is not sufficiently practiced. Recent advances in digital technology offer tremendous potential for promoting OSCB by delivering Just-In-Time Adaptive Interventions (JITAIs)- interventions that leverage dynamic information about the person's state and context to effectively prompt them to engage in a desired behavior in real-time, real-world settings. However, limited research attention has been given to systematically investigating how to best prompt individuals to engage in OSCB in daily life, and under what conditions prompting would be most beneficial. This paper describes the protocol for a Micro-Randomized Trial (MRT) to inform the development of a JITAI for promoting ideal OSCB, namely, brushing twice daily, for two minutes each time, in all four dental quadrants (i.e., 2x2x4). Sensors within an electric toothbrush (eBrush) will be used to track OSCB and a matching mobile app (Oralytics) will deliver on-demand feedback and educational information. The MRT will micro-randomize participants twice daily (morning and evening) to either (a) a prompt (push notification) containing one of several theoretically grounded engagement strategies or (b) no prompt. The goal is to investigate whether, what type of, and under what conditions prompting increases engagement in ideal OSCB. The results will build the empirical foundation necessary to develop an optimized JITAI that will be evaluated relative to a suitable control in a future randomized controlled trial.

Management of permanent incisors affected by Molar-Incisor-Hypomineralisation (MIH) using resin infiltration: a pilot study

PURPOSE

To compare the aesthetic improvement of Molar-Incisor-Hypomineralisation (MIH) opacities treated by applying Icon-Etch for three cycles with the opacities treated by Icon-Etch for once, in the course of resin infiltration technique.

METHODS

Thirty incisors were sorted based on the colour of the opacities and then distributed according to the number of Icon-Etch cycles using a randomisation table into the groups: (1) White/Creamy one cycle, (2) White/Creamy three cycles, (3) Yellow/Brown one cycle, (4) Yellow/Brown three cycles. The primary outcomes of applying the resin infiltration to the opacities were compared amongst groups according to the parents' satisfaction, the amount of coverage, and the colour matching with the surrounding sound enamel. The stability of the results after 3 months was evaluated using a spectrophotometer.

RESULTS

The colour of the opacity pre-treatment affected the outcomes significantly (p < 0.05), compared according to the method of application (p > 0.05) in terms of parents' satisfaction. Whilst the multiple applications for Icon-Etch cycles showed more coverage amount in White/Creamy opacities than the application ones (p < 0.05); in colour matching, there was no statistically significant difference between the two methods (p > 0.05). For yellow/brown opacities, some negative results occurred with the single Icon-Etch cycle.

CONCLUSION

In MIH opacities, it is possible to rely on the resin infiltration as a minimally invasive method to achieve acceptable results, especially with multiple Icon-Etch cycles applications in the white/creamy opacities. The colour stability has not been affected by either the colour of the opacity or the number of cycles.

Self-determination theory guided oral self-care training for adolescents-A cluster randomised controlled trial

Quality oral self-care is a key element in maintaining oral health, which is important for students' general health, their overall well-being and learning. The cluster randomised controlled trial tested the following hypotheses: (1) self-determination theory (SDT)-guided dental education is superior to conventional dental instruction in modifying oral self-care in adolescents; (2) after the discontinued dental education, improved oral self-care is only maintained for short rather than long term and (3) multiple predictors explain variations in adolescents' oral self-care at different observation periods. The intervention group (N = 97) received three face-to-face educational sessions to facilitate adolescents' intrinsic motivation, while the control group (N = 99) had one conventional dental instruction session. Dental plaque scores (% of tooth area covered by dental plaque) indicated a lack of oral self-care. Linear multivariable models tested the following predictors of oral self-care at different observation periods: socio-demographics (sex, socio-economic status, school) and self-determination attributes (autonomy, relatedness, competence). Results indicated that from baseline to the 6-month follow-up, dental plaque scores decreased (oral self-care improved) in the intervention group but not in the control group. At the 12-month follow-up point, there were no significant differences in mean plaque scores between the study groups. Baseline plaque levels (β = 0.807), the type of dental instruction (theory guided vs. conventional) (β = 0.208), relatedness (β = 0.106) and competence (β = 0.102) were significant predictors that explained 67.6% of the variance in dental plaque scores at the 12-month follow-up point. The theory-guided education was superior to conventional verbal instruction in improving adolescent oral self-care; however, this improvement was only maintained short term. Variations in adolescent oral self-care at short- and long-term observation points were explained by baseline oral self-care levels and two SDT components: relatedness and competence.