Combined application of different hygiene interventions, including brushing or ultrasound vibration in conjunction with chemical agents, leads to more effective outcomes (reduction in denture biofilm percentage and/or number of microorganisms' colony-forming units). The dimensional stability seems to be unaltered, but the number of clinical trials was limited. Critical concentrations of cleansing solutions along with the duration of their implementation influence the serviceability of dentures regarding colour stability. Brushing represents the most commonly applied hygiene practice, while denture wearers' attitudes are not complied with the recommended guidelines considering the reported frequency of hygiene practices and the continuous denture wear.
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