We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
The Journal of Adhesive Dentistry
Login:
username:

password:

Plattform:

Forgotten password?

Registration

J Adhes Dent 21 (2019), No. 6     6. Dec. 2019
J Adhes Dent 21 (2019), No. 6  (06.12.2019)

Page 487-495, doi:10.3290/j.jad.a43181, PubMed:31802064


What is an Appropriate Etching Time For Sealant Application on Permanent Molars? Results from a Meta-Analysis
Lo, Yi-Fang / Crispin, Alexander / Kessler, Andreas / Hickel, Reinhard / Kühnisch, Jan
Purpose: This meta-analysis investigated the influence of different acid etching times on the retention rate of pit-and-fissure sealants based on clinical trials with a minimum duration of two years.
Materials and Methods: A literature search was carried out in electronic databases along with hand searching to identify clinical trials that evaluated pit-and-fissure sealants in permanent molars. From 1280 identified abstracts, 195 studies were selected for full-text analysis, and 28 studies with 36 test groups were included in this meta-analysis. Test groups with etching times of 15 (n = 3), 20 (n = 2), 30 (n = 10), 40 (n = 1) and 60 s (n = 20) were found. Incidence rates of pit-and-fissure sealant losses were modelled using negative binomial regression.
Results: The regression analysis did not reveal a significant influence of etching time on the survival of pit-and-fissure sealants based on the identified and included clinical trials.
Conclusions: Due to the limited number of clinical data for 15 and 20 s, conclusions regarding very short acid etching times were not possible. On the basis of regression analysis, a minimum of 30-s acid etching might be sufficient prior to fissure sealing.

Keywords: acid etching, caries prevention, clinical studies, enamel pretreatment, meta-analysis, pit-and-fissure sealants, systematic review