Metropolitan Transportation Authority.
Metropolitan Transportation Authority (New York, NY, USA) MTA.
Contents
What is an MTA in business?
Minimum transfer amount (MTA)
What does MTA stand for in cable?
A phone modem or Multimedia Terminal Adaptor (MTA), is a box that connects the cable and phone line inside your home.
What does MTA stand for in research?
A Material transfer agreement (MTA) is a contract that governs the transfer of tangible research materials between two organizations when the recipient intends to use it for his or her own research purposes.
What is MTA in dentistry?
Abstract. Mineral trioxide aggregate (MTA), composed mainly of tricalcic silicate, tricalcic alluminate, bismuth oxide, is a particular endodontic cement. It is made of hydrophilic fine particles that harden in the presence of dampness or blood.
How do I become a MTA vendor?
How do I become a vendor to the MTA? My MTA Portal is where you can register to become a vendor to the MTA. You may also submit a paper form to get on the Bidders List, a computerized record of vendors who supply the goods and services we often need.
What is MTA for root canal?
The mineral trioxide aggregate (MTA) is a dental material with biocompatibility properties to oral and dental tissues. MTA was developed for dental root repair in endodontic treatment and it is formulated from commercial Portland cement, combined with bismuth oxide powder for radiopacity.
Is MTA a liner?
The MTA clinically performed more effective than conventional Calcium Hydroxide liner as a direct pulp capping material, showed higher success rate than dycal. MTA easier to use clinically as a direct pulp capping material.
How do dentists use the MTA?
The MTA powder is mixed with sterile water, and the mixture is placed in contact with the exposure using a Dovgan carrier (Figure 2). Compress the mixture against the exposure site with a moist cotton pellet. Place a moist cotton pellet over the MTA and fill the rest of the cavity with a temporary filling material.
Can I sell MetroCards?
Selling MetroCards
You can earn up to 3% on every card you sell. Pay-Per-Ride MetroCards are available in $5.50, $11, $22, $33, $44, and $67.50 denominations.
How do you put a MTA on a root canal?
Place the MTA material over the pulp and close the tooth with temporary cement until the apex is completely formed. MTA can be used in a one step or a two step approach. It can be used as a powder or a Wet Mix. However a study found that all these approaches have shown to be equally effective.
Does MTA dissolve?
Because MTA is alkaline in nature, it might interact with acids or chemicals and could disintegrate.
Is MTA used in primary teeth?
MTA as a pulpotomy agent has shown favorable results in case of primary molars. There is limited literature available regarding its use in primary incisors. However, the success of vital pulp therapy with MTA depends on proper case selection and technique of management of the tooth than the material itself.
Is MTA radiopaque or radiolucent?
Super EBA and both types of MTA were the least radiopaque materials. White/grey MTA-Angelus presented radiopacity between 3 to 3.3 mm Al. Bismuth oxide is added to the formulation of these materials to provide radiopacity.
Is MTA toxic?
Many studies have shown that MTA is non-toxic (21). However, MTA is clearly biologically active.
Does MTA resorb?
Resorption repair: Several case reports have described successful treatment of external root resorption using MTA as the material to fill the resorbed area of the tooth surface with surgical, nonsurgical methods, or by a combination of these approaches [138-140].
Can a perforated tooth be fixed?
Treatment of perforations
Some perforations can be repaired using restorative materials such as amalgam, fold, or composite materials to cover the hole. A perforation that occurs because of decay or resorption may require root canal therapy to remove the infected pulp inside the tooth.
How long does MTA take to set?
It has been reported that MTA sets slowly approximately 3-4 hours in clinical conditions (3, 25). Long setting time of MTA can cause clinical problems.
What is selling subway swipes?
The selling a MetroCard swipe is a time-honored scam in the New York City subways. Some scammers purchase unlimited ride cards and sell swipes to unsuspecting tourists. Others jam MetroCard vending machines so that innocent riders have no choice but to pony up the dough for a ride.
What is swiping illegal?
You can’t sell a swipe — if you swipe someone in for a dollar, that’s illegal. If you swipe someone in as a courtesy, that’s legal. But, if the person requesting a swipe is caught asking, they could be stopped by the police and possibly hit with a $25 to $50 fine, or a summons to appear in court.
What are the advantages of MTA?
MTA has the advantage of being less soluble than calcium hydroxide and offers an enhanced seal due to its setting expansion which hermetically seals the pulp space, preventing bacterial contamination from the outside.