Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1948 1
1952 1
1953 2
1954 12
1955 8
1956 4
1957 4
1958 3
1959 1
1965 7
1966 20
1967 26
1968 28
1969 20
1970 24
1971 33
1972 26
1973 24
1974 29
1975 29
1976 9
1977 21
1978 10
1979 22
1980 26
1981 12
1982 15
1983 28
1984 30
1985 22
1986 27
1987 13
1988 21
1989 20
1990 34
1991 29
1992 35
1993 26
1994 21
1995 22
1996 19
1997 26
1998 15
1999 14
2000 23
2001 24
2002 19
2003 24
2004 43
2005 48
2006 51
2007 62
2008 66
2009 71
2010 90
2011 83
2012 100
2013 101
2014 87
2015 102
2016 91
2017 116
2018 103
2019 56
2020 27
2021 15
2022 1
2024 0

Text availability

Article attribute

Article type

Publication date

Search Results

2,050 results

Results by year

Filters applied: . Clear all
Page 1
Enamel acid etching: a review.
Lopes GC, Thys DG, Klaus P, Oliveira GM, Widmer N. Lopes GC, et al. Compend Contin Educ Dent. 2007 Jan;28(1):18-24; quiz 25, 42. Compend Contin Educ Dent. 2007. PMID: 17278628 Review.
2,050 results