Table 5. Analysis of top five co-citation clusters in childhood caries research.

Cluster	Members	Silhouette	Publication year	Key researcher	Focus areas
0	165	0.805	2006	Feldens CA	S-ECC, fluoride varnish, cross-sectional studies, caries experience
1	150	0.82	2018	Gudipaneni RK	Socio-behavioral risk indicators, guardian factors
2	140	0.801	2012	Nobile CGA	Breastfeeding duration, behavioral factors
3	134	0.784	2015	Phantumvanit P	Silver diamine fluoride, risk factors, controlled trials
4	108	0.951	2001	Hallett KB	Social and behavioral variables, rural communities

S-ECC, severe early childhood caries.