J. Orthod.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Journal of Orthodontics, Vol. 31, No. 3, 243-247, September 2004 doi:10.1179/146531204225022452
© 2004 British Orthodontic Society
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Ip, T. B.
Right arrow Articles by Rock, W. P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Ip, T. B.
Right arrow Articles by Rock, W. P.

Article

A comparison of three light curing units for bonding adhesive pre-coated brackets

T. B. Ip and W. P. Rock

School of Dentistry, Birmingham, UK

Address for correspondence: W P Rock, Orthodontic Unit, School of Dentistry, University of Birmingham, St Chads Queensway, Birmingham, B4 6NN, UK. Email: w.p.rock{at}bham.ac.uk

Objective: To compare the effectiveness of three curing lights of different types.

Design: Prospective randomized laboratory investigations.

Materials and method: Adhesive pre-coated orthodontic brackets were bonded to 9 groups of extracted premolars and the adhesive was cured using three different curing lights, each at three different times. Bond strength was tested using a shear/peel method.

Results: The plasma light had 3 times the light intensity of the standard quartz halogen light. The curing times recommended by the manufacturers were 2 seconds for the plasma light, 10 seconds for the high intensity quartz halogen light and 20 seconds for the standard one. Mean debond stresses with these cure times were 9.36, 11.77 and 12.00 MPa, respectively, p<0.04. Increasing the plasma light cure to 4 seconds increased the mean debond stress to 11.19 MPa, similar to that for the other lights, p=0.62.

Conclusions: Use of a plasma light confers worthwhile time savings when bonding orthodontic brackets, whilst producing bonds of equivalent strength to those found with quartz halogen lights.

Key words: Orthodontic adhesive, light cure






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2004 British Orthodontic Society.