X-ray diffraction analysis of MTA-Plus, MTA-Angelus and DiaRoot BioAggregate.

ABSTRACT
OBJECTIVE:
The purpose of this study was to investigate and compare the crystalline structures of recently released
MTA Plus (MTAP), MTA Angelus (MTA-A), DiaRoot BioAggregate (BA) by X-ray diffraction (XRD) analysis.
MATERIALS AND METHODS:
Phase analysis was carried out on powder and set forms of tested materials. The powder specimens
placed into sample holders that were packed with a glass slide and the set samples prepared according
to the manufacturer’s instructions were placed into molds. The samples after being set for three days at
37°C and 100% humidity in an incubator were mounted onto the XRD machine and phase identification
was accomplished using a search-match software program.
RESULTS:
XRD findings indicated that major constituents of MTA-P were bismuth oxide, portlandite, dicalcium
silicate and tricalcium silicate. The crystal structure of MTA-A were similar to those of MTA-P except for
the absence of portlandite. Additionally, MTA-A had tricalcium aluminate differing from MTA-P. BA mainly
differed from MTA-P and MTA-A by the radiopacifier (tantalum oxide-TO) in its composition.
CONCLUSION:
The majority of constituents of the tested materials have shown similarity except for the presence of
tricalcium aluminate in MTA-A and the inclusion of TO in BA. In addition, set MTA-P showed a strong peak
of portlandite.

Eur J Dent. 2014 April, 8(2):211-5.
Guven Y, Tuna EB, Dincol ME, Aktoren O.
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NeoMTA Plus is a stainproof, tricalcium silicate-based bioactive cement that can be used universally for vital pulp and other endodontic indications in primary and permanent teeth. NeoMTA Plus is a bioceramic cement that triggers the healing process. With NeoMTA Plus, general dentists, pediatric dentists, and endodontists now have a superior and reasonably priced bioceramic. Dentists praise the multi-use NeoMTA Plus because it mixes more smoothly, is easier to dispense and the unique gel enables more stable placement, washout resistance and faster clinical setting.

New, stain-free light color:

Ideal for pediatric dentistry—won’t discolor teeth
Liquids such as sodium hypochlorite won’t cause discoloration

Multiple indications:

Pulp-capping to base/liner
Pulpotomies to apexification
Sealer to perforation repair
Root-end filling to resorption

Non-cytotoxic

Inhibits bacterial growth* *Tested in vitro. Not a disinfectant

Grey MTA Plus is a bioceramic tricalcium silicate-based Dental Cement, which is slightly more radiopaque than (white) MTA. The light silvery color of MTA Plus is visible during placement. Grey MTA Plus is indicated for both Vital Pulp Therapy and Endodontic procedures. General dentists and endodontists praise the multi-use Grey MTA Plus because it mixes more smoothly and is easier to dispense. The unique gel enables more stable placement, washout resistance and faster clinical setting.

Multiple indications:

Pulp-capping to Base/Liner
Pulpotomies to Apexification
Sealer to Perforation Repair
Root-end Filling to Resorption

New, light grey color:

More radiopaque than the leading white MTAs
Visible for precise placement
Inhibits bacterial growth in vitro of Staphylococcus aureus, Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa.
Non-cytotoxic

Better mixing, handling and placement:

Finer powder mixes more easily and smoothly
Dispense as little as 0.1 gm
Unique gel for stable placement
Washout resistant
No special equipment required

Smart, convenient packaging:

Protects fine powder in desiccant-lined bottle
Easy to dispense powder as needed
Dropper-tip gel bottle minimizes waste