| Title |
Application of Dentin Bonding Agent to Prevent MTA-Related Tooth Discoloration in a Regenerative Endodontic Treatments |
| Clinical Question |
How to prevent or minimize tooth discoloration produced by MTA during regenerative procedures? |
| Clinical Bottom Line |
Application of dentin bonding agent (DBA) in the access cavity before using either white (WMTA) or gray (GMTA) in a regenerative endodontic treatment reduces tooth discoloration. |
| Best Evidence |
|
| PubMed ID |
Author / Year |
Patient Group |
Study type
(level of evidence) |
| 22114601 | Akbari/2011 | 50 extracted maxillary anterior teeth | Random controlled bench-top study | | Key results | The teeth in (WMTA/GMTA) groups showed significantly more discoloration than (DBA + WMAT/GMTA) and control groups. No significant difference between DBA+WMAT/GMTA and control groups. | |
| Evidence Search |
MTA Tooth discoloration |
Comments on
The Evidence |
Groups were clearly defined with exposures and outcomes measured identically in all groups. Teeth were randomly assigned to treatment and control groups. Evaluation time was long enough. |
| Applicability |
One of the challenges in regenerative endodontic therapy is to eliminate the MTA-related tooth discoloration commonly observed in this procedure. The clinician should avoid leaving remaining MTA particles in the access cavity after its placement. It has been demonstrated that application of DBA producing a surface, which seals the dentinal tubules in the pulp chamber reducing the undesirable staining. However, more research will be needed to evaluate the effect of DBA on the properties MTA. |
| Specialty |
(Endodontics) (General Dentistry) |
| Keywords |
MTA, Tooth discoloration, Dentin bonding agent.
|
| ID# |
2301 |
| Date of submission |
08/03/2012 |
| E-mail |
austah@livemail.uthscsa.edu |
| Author |
Obadah Austah |
| Co-author(s) |
|
| Co-author(s) e-mail |
|
| Faculty mentor |
Fabricio Teixeira, DDS, MS, PhD |
| Faculty mentor e-mail |
fabricio-teixeira@uiowa.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?) |
by Obadah Austah (San Antonio, TX) on 09/17/2012
The mechanism of MTA related tooth discoloration has no solid scientific explanation yet. There are some possible factors proposed in the literature. Some authors (PMID: 19627674) stated that the discoloration might be related to Bismuth oxide (an element added to improve the radiopacity of both WMTA/GMTA). While, Others (PMID: 15671818) showed that Iron and manganese as possible elements responsible for the discoloration. | |
 |
Comments and Evidence-Based Updates on the CAT
(FOR PRACTICING DENTISTS', FACULTY, RESIDENTS and/or STUDENTS COMMENTS ON PUBLISHED CATs) |
| None available | |