Developing and evaluating the implementation of a complex intervention: using mixed methods to inform the design of a randomised controlled trial of an oral healthcare intervention after stroke

Table 2 Denture and Dental Plaque Scores

Type of plaque	Baseline			After			After - Baseline
Patients with Dentures	N	Mean	SD	N	Mean	SD	N	Mean	SD	P-value
Denture Plaque
Minimum (Best) Score	23	0.70	0.79	9	0.22	0.44	9	-0.56	0.53	0.013*
Mean Score	23	0.98	0.69	9	0.75	0.48	9	-0.22	0.67	0.35
Maximum (Worst) Score	23	1.26	0.81	9	1.11	0.78	9	-0.31	0.59	0.16
Patients with Natural Teeth
Dental Plaque
Minimum (Best) Score	14	1.29	0.73	10	0.90	0.74	10	-0.30	0.48	0.081
Mean Score	14	1.57	0.80	10	1.32	0.80	10	-0.20	0.42	0.17
Maximum (Worst) Score	14	1.86	0.86	10	1.80	1.03	10	-0.10	0.37	0.40

Denture and Dental Plaque Scores -Reflects the 23 participants that wore dentures while in hospital and 14 participants with natural teeth. In some cases a single individual could have both denture and dental plaque scores. Two individuals were edentulous and are not represented within this table.
Denture Score is on a scale of 0-4 (0 = none [0%], 1 = light [1-25%], 2 = moderate [26-50%], 3 = heavy [51-75%], 4 = very heavy [76-100%], whereas Dental Score is on a scale 0-3 [0 = no debris, 1 = soft debris <33%, 2 = soft debris 34-67%, 3 = soft debris 68-100%]. The data shown is calculated across all sections (Dentures - six + fitting plate; Dental - five) at baseline and then 'After' (across all of weeks 2,3,4 or 5). The P-value is for a one sample 2-sided paired t-test on whether the difference After-Before is significantly different from zero. * = significant at p < 0.05.

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