Correction to: A bibliometric analysis of scientific production in the field of lingual orthodontics.

Following publication of the original article [1], the author informed.

Correction to: Head Face Med (2019) 15:23

https://doi.org/10.1186/s13005-019-0207-7

Following publication of the original article [1], the author informed that Table 5 was incorrectly captured which is actually an older version of Table 4. The corrected Table 5 is provided below.

Table 5

Details of the selected articles (n = 341) regarding the type of article and methodological parameters

Article type	n (%) *	Statistics (%)**	Control group***	Sample size	Articles
Interventional clinical trials	6 (1.8%)	6 (100%)	6 (100%)	≤ 20	1
				>  20	5
Observational studies	70 (20.5%)	50 (71.4%)	9 (12.8%)	≤ 20	8
				>  20	62
Case reports/series	58 (17.1%)	0 (0%)	–	= 1	43
				>  1	15
Laboratory studies	96 (28.1%)	0 (0%)	–	–	–
Systematic reviews	3 (0.9%)	3 (100%)	–	–	–
Narrative reviews	16 (4.7%)	2 (12.5%)	–	–	–
Interviews	2 (0.6%)	0 (0%)	–	–	–
Informative studies	40 (11.7%)	0 (0%)	–	–	–
Others	50 (14.7%)	–	–	–	–

*number of article types and percentage of all selected articles (n = 314)

**number of articles providing statistical analysis and percentage of all selected articles (n = 314)

***number of studies with control group and percentage of all selected articles (n = 314)

- not applicable