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Lookup NU author(s): Dr Ross Hobson, Professor Mark Thomason, Dr Nick Jepson
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This study investigated the quality of in vivo etch patterns on the bonding surfaces of 46 abutment teeth following acid etching with 37% phosphoric acid for 30 seconds. Two-stage putty and light bodied addition cured silicone impressions of the etched lingual surfaces were used to form replicas that were then viewed using the scanning electron microscope. Over 69% of the lingual bonding surface area of incisors, canine and premolars were unetched, 16% barely etched, 7% etched and less than 2% ideally etched. There was no significant difference in the quality of etch between different tooth types. There was a significantly greater proportion of poorly etched enamel towards the cervical margin in comparison with the occlusal half. This may have implications in retention of resin bonded bridges.
Author(s): Hobson RS, Crotty T, Thomason JM, Jepson NJ
Publication type: Article
Publication status: Published
Journal: European Journal of Prosthodontics and Restorative Dentistry
Year: 2005
Volume: 13
Issue: 3
Pages: 123-128
Print publication date: 01/09/2005
ISSN (print): 0965-7452
Publisher: FDI World Dental Press Ltd
URL: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16180638
Notes: 0965-7452 (Print) Journal Article
