Dental Materials: MTA vs FC-soaked Cotton Pellet

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Questions and Answers

MTA is not used in area open to ______ environment

oral

MTA is not recommended for obturation of ______ teeth

primary

MTA has a ______ of discoloration potential

presence

Biodentine is the first all-in-one, ______ and bioactive material

biocompatible Signup and view all the answers

MTA is not used as a ______ filling due to low compressive strength

permanent Signup and view all the answers

Mineral trioxide aggregate (MTA) is comprised primarily of ______ % Portland cement.

75 Signup and view all the answers

MTA is the most commonly recommended material for sealing communications between the ______ canal system and the periodontium.

root Signup and view all the answers

Bismuth oxide and calcium sulfate dihydrate are added to MTA to enhance its ______ properties.

sealing Signup and view all the answers

There are two types of MTA, Gray and ______.

2 Signup and view all the answers

Dr. Mahmoud Torabinejad developed MTA for use as a ______ root repair material.

dental Signup and view all the answers

MTA sets in the presence of ______ and has a setting time of around 2 hours and 45 minutes.

moisture Signup and view all the answers

MTA is a ______ material with good sealing ability and generates little or no inflammatory response.

biocompatible Signup and view all the answers

The ______ strength of MTA develops over a period of 28 days and is more than 133MPa.

Compressive Signup and view all the answers

The ______ of MTA is increased in the presence of moisture and a moistened cotton pellet should be placed in contact with MTA before placement of the permanent restoration.

sealing ability Signup and view all the answers

MTA has a long ______ time with less shrinkage, according to Torabinejad et al.

setting Signup and view all the answers

What is the preferred option when the coronal pulp tissue is inflamed and direct pulp capping is not suitable?

Vital pulpotomy with biodentine Signup and view all the answers

What makes biodentine a preferred material for perforation repair in the root canal or pulp chamber floor?

Good adhesion to dentin surface and fast setting time Signup and view all the answers

What is the role of calcium silicate cements in bone tissue repair?

Induction of calcium-phosphate precipitation at the interface to the periodontal tissue Signup and view all the answers

What is the outcome of proper regenerative endodontic treatment with biodentine in necrotic immature teeth, according to Cauwels et al.?

Continued root development Signup and view all the answers

What are the benefits of biodentine in apexification, as mentioned in the text?

Tight bacterial seal, induction of formation of new cementum, and induction of formation of new periodontal ligament (PDL) Signup and view all the answers

What is a key consideration when placing a filling material in a cavity that bears occlusal pressure?

Compressive strength Signup and view all the answers

What is the purpose of adding bismuth oxide to MTA?

To enhance radiopacity Signup and view all the answers

What is one clinical indication for using MTA?

Root-end filling after apicoectomy Signup and view all the answers

What is the thickness of the MTA apical plug in apexification?

4-5mm Signup and view all the answers

What is the purpose of using a damp cotton pellet in MTA manipulation?

To soak up excess blood Signup and view all the answers

What is the primary goal of apexogenesis, and how long does it take for apical closure to occur?

The primary goal of apexogenesis is to maintain pulp vitality during pulpal treatment, allowing for continued development of the entire root. Apical closure occurs approximately 3 years after eruption. Signup and view all the answers

What are the drawbacks of using formocresol in pulpotomy, and why is MTA a preferred alternative?

Formocresol has been criticized for its tissue irritant, cytotoxic, and mutagenic effects. MTA is preferred due to its low toxic effect, increased tissue regeneration properties, and good clinical results. Signup and view all the answers

What is the significance of the width of the periodontal ligament space in assessing healing of periapical lesions?

A consistent width of the periodontal ligament space suggests healing of the periapical lesion. Signup and view all the answers

What is the role of MTA in pulpotomy, and how does it differ from formocresol in terms of procedure time?

MTA is placed over the exposed pulp tissue to control bleeding, and the procedure time is shorter compared to formocresol, which requires 3-5 minutes of application before removal. Signup and view all the answers

What is the significance of a 'moist cotton pellet' in the MTA pulpotomy procedure?

A moist cotton pellet is placed on the MTA material to allow it to set. Signup and view all the answers

What is the potential of Biodentine in revolutionizing the different aspects of managing primary and permanent teeth in endodontics as well as operative dentistry?

Great potential due to its advantages and unique features, overcoming the disadvantages of other materials. Signup and view all the answers

What is required to extend the future scope of Biodentine regarding clinical applications?

Further studies are needed. Signup and view all the answers

What is Biodentine being investigated as a replacement material for in dental applications?

Dentine. Signup and view all the answers

What properties of Biodentine make it a promising material for use in endodontics and operative dentistry?

Its unique features and bioactive properties. Signup and view all the answers

What is the significance of compressive strength in the evaluation of Biodentine's performance as a dental material?

It is an important factor in determining the material's overall effectiveness. Signup and view all the answers

Study Notes

MTA Overview

MTA (Mineral Trioxide Aggregate) is not suitable for areas exposed to the oral environment.
Not recommended for obturation of primary teeth due to longevity and structural concerns.
MTA has a significant potential for discoloration, particularly in aesthetic areas.
It is composed primarily of 75-80% Portland cement.
MTA is often used for sealing communications between the root canal system and the periodontium.
Bismuth oxide and calcium sulfate dihydrate are additives that enhance radiopacity and properties of MTA.
Two types of MTA exist: Gray and White.
Developed by Dr. Mahmoud Torabinejad for root repair applications.
Sets in the presence of moisture, with a setting time of approximately 2 hours and 45 minutes.
Exhibits a biocompatible nature, with good sealing ability and minimal inflammatory response.
Compressive strength exceeds 133 MPa after 28 days.
MTA’s hydration and strength increase with moisture, requiring placement of a damp cotton pellet before permanent restoration.

Biodentine Characteristics

Biodentine is characterized as the first all-in-one, bioactive material suitable for various dental applications.
Preferred for perforation repair due to its quick setting time and favorable properties.
Needs further investigation to broaden its clinical applications, especially as a replacement for materials like MTA.

Clinical Applications and Considerations

In cases where the coronal pulp tissue is inflamed and direct pulp capping is not viable, alternative treatments should be considered.
Properties of calcium silicate cements play a role in enhancing bone tissue repair.
Outcomes in necrotic immature teeth treated with biodentine have shown promising regenerative endodontic results.
In apexification, biodentine offers benefits such as biocompatibility and effective sealing ability.
When placing a filling material in cavities under occlusal pressure, it's crucial to consider the material’s compressive strength.

MTA Usage and Comparisons

The addition of bismuth oxide to MTA improves its radiopacity for better visualization.
MTA serves specific clinical indications, such as root repair and pulpotomy.
The recommended thickness for an MTA apical plug during apexification varies based on clinical guidelines.
Utilizing a damp cotton pellet during MTA manipulation is essential for hydration, ensuring proper set and performance.
Apexogenesis aims to facilitate apical closure, which typically takes several months, ensuring vitality of the pulp.
Compared to formocresol in pulpotomy procedures, MTA offers a more favorable safety profile despite longer procedure times.
Assessing the width of the periodontal ligament space is significant for understanding healing in periapical lesions.

Revolutionary Potential of Biodentine

Biodentine has potential to revolutionize management techniques in both primary and permanent teeth across endodontics and restorative dentistry.
Expansion of Biodentine’s clinical application is required for broader acceptance in dental practices, particularly in regenerative procedures.
Its promising properties enhance both endodontic and operative dentistry outcomes.
Evaluating compressive strength is vital in determining Biodentine's efficacy as a reliable dental material.

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Description

This quiz compares the use of MTA and FC-soaked cotton pellets in dentistry, highlighting the advantages and limitations of MTA. It covers the potential risks of bleeding and the importance of considering the oral environment.