Correction to: Clinical Oral Investigations.

https://doi.org/10.1007/s00784-020-03765-9

In the original version of this article, the following were noted for correction:

1. The section under the header “Ethical considerations” contains “regional ethical review board in Gothenburg” which is wrong. The following is correct: “Swedish Ethical Review Authority” (be aware of the capital letters on the first letter of each word). The same change has to be made in the section under the header “Ethics approval” as well.

2. When looking on the article on pubmed, Dr. Walladbegis affiliation is marked with number 3, even though it’s the same as Dr. Mahdi’s affiliation (which is marked with number 1).

The original article has been corrected.