Primary study · included by 1 review

Effect of a single dental health care instruction and prophylaxis on gingivitis.

Tan 1978 · Tan H H, Saxton C A · Community dentistry and oral epidemiology · 1978

Included by

Clinical Efficacy of Interventions Based on Professional Mechanical Plaque Removal in the Treatment of Dental Biofilm-Induced Gingivitis: A Systematic Review and Meta-Analysis.

Non-Cochrane · intervention · 2026 · cited as Tan and Saxton 1978 · Figure 2; Table 4; reference list

Outcome this study informs	Pooled effect	Evidence	Certainty
Supragingival plaque scores Professional mechanical plaque removal (scaling) alone vs No treatment (continued routine oral hygiene) · 2-6 weeks	SMD 1.13 [0.60, 1.66]	2 studies · 71 participants	GRADE not reported
Gingival inflammation indices (BOP score, GBS) at patient level Professional mechanical plaque removal plus oral hygiene instructions vs Oral hygiene instructions alone · 2-6 weeks	SMD 0.25 [0.07, 0.44]	3 studies · 487 participants	Low
Gingival inflammation indices (GBS, PBI) at patient level Professional mechanical plaque removal (scaling) alone vs No treatment (continued routine oral hygiene) · 2-6 weeks	SMD 0.28 [-0.21, 0.77]	2 studies · 71 participants	Low
Supragingival plaque scores Professional mechanical plaque removal plus oral hygiene instructions vs Oral hygiene instructions alone · 2-6 weeks	SMD 0.20 [-0.01, 0.41]	2 studies	GRADE not reported

1 including review in total.