Title Effect of Micro-Etching On The Retention Of Dental Fixed Prosthesis
Clinical Question In a patient receiving a fixed dental prosthesis, does micro-etching improve the retention of a fixed prosthesis as compared to not etching?
Clinical Bottom Line For patients receiving a fixed dental prosthesis, micro-etching, by air-abrasion or intraoral sandblasting, improves the retention of fixed dental prosthesis as compared to not micro-etching in an in in vitro study.
Best Evidence  
PubMed ID Author / Year Patient Group Study type
(level of evidence)
18618029Gurbuz/ 200860 extracted maxillary molarsIn vitro
Key resultsThe In vitro study indicates a significant increase in retention of all the cements and complete metal crowns when airborne-particle abrasion was implemented (p<0.5).
20655101Shahin/ 2010Extracted human premolars In vitro
Key resultsThis in vitro study indicates that air-abrasion significantly increased crown retention for CAD/CAM produced zirconia ceramic crowns (p<0.001).
Evidence Search (("Dental Prosthesis Retention"[Mesh])) AND ("Air Abrasion, Dental"[Mesh])
Comments on
The Evidence
Due to the study type being an in vitro study, the evidence found is relatively weak. There were no competing interests. In order to strengthen the evidence supporting the increased retention when using air-abrasion, clinical studies need to be completed.
Applicability When delivering a fixed dental prosthesis, the intaglio surface of the dental prosthesis can be air-abraded using a intraoral micro-etcher in order to increase the retention for complete metal crowns and CAD/CAM zirconia crowns on premolars and molars.
Specialty (General Dentistry) (Prosthodontics)
Keywords Air-abrasion, Micro-etching, Dental prosthesis, Dental crown, Retention
ID# 2383
Date of submission 02/25/2013
E-mail Daryapayma@livemail.uthscsa.edu
Author Camille Daryapayma
Co-author(s) e-mail
Faculty mentor Richard B. Magness, DDS
Faculty mentor e-mail MagnessR@uthscsa.edu
Basic Science Rationale
(Mechanisms that may account for and/or explain the clinical question, i.e. is the answer to the clinical question consistent with basic biological, physical and/or behavioral science principles, laws and research?)
None available
Comments and Evidence-Based Updates on the CAT
None available