| Title |
Saliva Contamination May Not Reduce the Success Rate of Orthodontic Bracket Bonds with Self-Etching Primer |
| Clinical Question |
To what extent does saliva contamination, before or after the application of self-etching primer, weaken the bonding of orthodontic brackets? |
| Clinical Bottom Line |
Saliva contamination pre- or post- application of self-etching primer does not increase the risk of failure of orthodontic bracket bonds. (See Comments on the CAT below) |
| Best Evidence |
|
| PubMed ID |
Author / Year |
Patient Group |
Study type
(level of evidence) |
| 20451788 | Campoy / 2010 | 46 patients, 531 brackets | Cohort split-mouth control | | Key results | Chi-square analysis revealed no difference in failure rate (p=0.11) nor survival rate (p=0.51) between uncontaminated control sites (263 brackets, 16 failures), contamination before primer (153 brackets, 16 failures), or contamination after primer (115 brackets, 5 failures). | |
| Evidence Search |
(("Dental Cements"[Mesh]) AND "Orthodontic Brackets"[Mesh]) AND "Saliva"[Mesh] AND ("self etching primer" OR "self-etching primer") |
Comments on
The Evidence |
This was an internally controlled (split-mouth) design in which each patient received contamination-free priming, as well as pre-priming, and post-priming saliva contamination. Patients were followed for at least 6 months post-bonding, and only first-time failures were recorded per tooth. |
| Applicability |
Patient demographics were not described in the article. Patients were said to have "malocclusion as symmetrical as possible," bonded teeth were caries-free, restoration-free, and free of enamel disorders, and opposing tooth/bracket interferences were avoided. The bonding technique itself seems to be within the range of any orthodontic practice. |
| Specialty |
(Orthodontics) |
| Keywords |
orthodontic brackets, saliva contamination, self-etching primer
|
| ID# |
883 |
| Date of submission |
05/05/2011 |
| E-mail |
chaudharyg@uthscsa.edu |
| Author |
Gaurang Chaudhary |
| Co-author(s) |
|
| Co-author(s) e-mail |
|
| Faculty mentor |
S. Thomas Deahl, II, DMD, PhD |
| Faculty mentor e-mail |
DEAHL@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
(FOR PRACTICING DENTISTS', FACULTY, RESIDENTS and/or STUDENTS COMMENTS ON PUBLISHED CATs) |
by Wesley Shute, Kristin Saunders (San Diego, CA) on 10/03/2014
An October 2014 PubMed database search revealed two more recent articles regarding enamel surface contamination during bonding of orthodontic brackets. Santos, 2010, PubMed ID 20578870, a comparative study; and Goswami, 2014, PubMed ID 25143933, a RCT. Both articles support the conclusion of the CAT published in 2010, that saliva contamination does not significantly effect the bond strength to enamel when using a hydrophilic bonding agent. | |