Meta-analysis and systematic review of factors biasing the observed prevalence of congenitally missing teeth in permanent dentition excluding third molars

Progress in Orthodontics

Table 1 Number of search results

Keyword	Pubmed	Web of Science	Google Scholar	Total
Variations of 'congenitally missing teeth^a’	399	95	3,133	3,627
Hypodontia or anodontia or oligodontia	3,345	940	12,300	16,585
'Dental aplasia’ or 'dental agenesis’ or ’tooth aplasia’ or 'tooth agenesis’	353	398	3,300	4,051
Congenitally missing teeth^a and prevalence	102	27	1,630	1,759
(Hypodontia or anodontia or oligodontia) and prevalence	490	170	3,560	4,220
(Dental aplasia or dental agenesis or tooth aplasia or tooth agenesis) and prevalence	100	106	1,560	1,766
Total	4,789	1,736	25,483	32,008

^aIncluding the search results for congenital missing of teeth, congenital absence of teeth, and congenitally absent teeth.