Clinical Effectiveness of Timed Morning Brushing on MQH Plaque

Objectives: This research was conducted to assess the effects of timed morning brushing on the removal of overnight disclosed plaque. Methods: A total of 88 generally healthy adults were enrolled in the study. After evening brushing, subjects were instructed to abstain from further oral hygiene until the next day evaluation. Disclosed plaque accumulation was assessed on a 6-point categorical scale using the Modified Quigley Hein (MQH) method. Subjects were provided a regular anticavity dentifrice (Crest® Cavity Protection) and standard manual toothbrush, and brushed under supervision for 30 seconds, after which, MQH plaque was assessed. Prebrush and postbrush plaque scores were compared using a paired difference t-test. Results: Mean (SD) age was 34.7 (13.3) years. 70% of participants were female. The population exhibited a considerable range in overnight MQH plaque, with scores ranging from 0.6 – 4.0. Mean (SD) prebrush MQH plaque was 1.95 (0.62). With one exception, individual MQH scores were lower after brushing, ranging from 0.6 – 2.8. Mean (SD) postbrush MQH plaque was 1.4 (0.4), differing significantly (p<0.0001) from prebrush scores. Treatment was well-tolerated. Conclusion: Timed, 30-second morning brushing with a manual toothbrush and regular toothpaste reduced mean overnight MQH plaque scores by approximately 28%.