Skip to main content

Use MTA in Your Endodontic cases [Simplified Guide]

Many Dentists have written a lot about MTA and there are tons of theory in the books and internet for you. Ill not provide with notes of MTA. 
So why read this post ? 

Read this post because ill tell you about clinical application of this material - How to use MTA? Where to use MTA ? How to Manipulate MTA. Advantages and Disadvantages of MTA.


MTA stands for Mineral Trioxide Aggregate.
It was 1993 when Torabinejad first introduced MTA in dental field. Technically its nothing but a super fine and modified "Portland cement" what we find in hardware stores. 
Endodontics need precision and care, Miscalculation of 1mm can increased the chances of failure.


Composition-   Tricalcium  Silicate
                      Tricalcium aluminate
                      Tricalcium Oxide
                      Silicate Oxide
                      Bismuth Oxide- radio opaque
                      Small amount of other mineral oxide
On hydration of this powder it forms colloidal gel, on solidification this mass forms a impermiable barrier. After solidification it reaches to pH of 12.5 which is similar to CaoH.            


Clinical application-
Cases of Root perforation-Its healing results are remarkable.
Root End feeling material in open apex. ( Apexogenesis )
Vital pulp therapy- Direct pulp therapy
Teeth with open apices and necrotic pulps (Apexification)
Pulp Capping
Pulpotomy
Furcation Perforation
Extra-Radicular perforation repair
Surgical root repair
Internal resorption repair


How big the exposure should be 
The size of the exposure can be 0.5 mm (the tip size of a perio probe) to 4 mm with the same success


Before application
Thoroughly disinfect the area with Sodium hypochlorite
Arrest any hemorrhage by applying pressure with cotton pulg or by using suproxol 


How to mix
[Note- Every company provide their proper manipulation guide with the packet follow it for best result and for idea read following]


It comes in pouches so  open one 
Mix with the water ampule (sterile water) provided or you can buy it from the medical store and get to a creamy consistency
powder liquid ratio is 3:1
you can use perio-probe, excavators or cement carrier - what ever suits you to place it and condense it with condenser. Remove excess moisture.
MTA have approximately 5 - 15 minutes' working time and 4 - 6 hours' setting time.
              mixing with sterile water                                                      smooth creamy mix



Pros-
Excellent sealing ability
Low solubility
Radioopaque
Biocompatible
Hydrophilic
High pH- 12.5
Bacteriostatic
Allows normal healing response
Allows formation of new cementum
Allows formation of new dentin
Least leakage


Cons-
Cost vise high in compare to CaoH
irreversible application
Labels:

Comments

Post a Comment

Popular posts from this blog

How to use digital X-ray Or RVG with Apple iPad , iPhone. The Kodak RVG 6500

iPad Innovation is the key to development and dentistry is not an exception.First there was no radiograph then came conventional radiograph then came high speed radiograph and Digital radiograph or RVG  and now Apple iPad. You will say ( What ! an iPad?)  yes an iPad. It's an innovation by Apple inc.which has been accepted by medical and dental field warmly.I have discussed How to upgrade your dental practice with Apple iPad in earlier post and written about the change this gadget can bring.You can check  10 free iPad application for dentists Today in Digital Radiograph or RVG we shoot an X-ray few moments later it appears on the computer screen and then you interpret it and discuss it with your patients. Now Kodak have made a RVG system which is iPad compatible and if you have an iPad or iPhone you can see and review this X-ray image directly on your gadget write reports and save it. You must have Two thing for it. 1.RVG Mobile software in your iPad...
3 comments
Read more

The Calla lilly prep in endodontics !!

During patient treatment, the clinician needs to consider many factors that will affect the ultimate outcome. In simple terms, these factors can be grouped into 3 categories: (I) operator needs, (II) restoration needs, (III) the tooth needs. (I)The operator needs are the conditions the clinician needs to treat the tooth. (II) The restoration needs are the prep dimensions and tooth conditions for optimal strength and longevity. (III)The tooth needs are the biologic and structural limitations for a treated tooth to remain predictably functional. The Cala Lilly is a flower and is the new model for composite preparations. SOURCE: Modern Molar Endodontic Access and Directed Dentin Conservation, David Clark et al,2010
1 comment
Read more

tooth fusion vs Concrescence vs gemination

Tooth fusion     The phenomenon of tooth fusion arises through union of two normally separated tooth germs, and depending upon the stage of development of the teeth at the time of union, it may be either complete or incomplete. On some occasions, two independent pulp chambers and root canals can be seen. However, fusion can also be the union of a normal tooth bud to a supernumerary tooth germ. In these cases, the number of teeth is fewer if the anomalous tooth is counted as one tooth. In geminated teeth, division is usually incomplete and results in a large tooth crown that has a single root and a single canal. Both gemination and fusion are prevalent in primary dentition, with incisors being more affected.   Concrescence     Concrescence is a condition of teeth where the cementum overlying the roots of at least two teeth join together. The cause can sometimes be attributed to trauma or crowding of teeth. Surgical separation of the teeth may be ne...
1 comment
Read more