Dental Materials Archive

Classification of Dental cements based on their uses

Dental Cements have multiple uses in Dentistry based on the requirement from patient to patient, and it also differs from tooth to tooth in the same patient. The front or anterior teeth (incisors, canine) require aesthetics more than strength and it is the opposite in the posterior or the molars. So it ...Read More

Comparison of Physical Properties of Tooth Colored Restorative Materials

Tooth colored Restorative Dental Materials are being used more profusely in Dentistry as the need for Aesthetics has increased and the tooth colored materials are having similar properties to materials like Amalgam. Here i am going to compare the various physical properties of Tooth colored Restorative Dental Materials: Strength Compressive Strength Modulus of ...Read More

Common Failures or Defects and Causes of Elastomeric Impression materials

Elastomeric impression materials are used to reproduce very accurate impressions where all the little details are also captured in the impression and reproduced in the cast produced. Classification of Elastomeric Impression materials: Elastomeric impression materials are divided into 3 types based on their composition 1. Polyether 2. Polysulfide 3. Silicone: Addition Condensation ...Read More

Principles of Retentive Pins Placement in Dentistry

Retentive Pins: These are Pins which are used to improve the retention of the restoration. Pins retain the restoration in position and and hold the restoration and prepared tooth structure together and they also the tooth by Cross-Splinting of Weakened Cusps. Placing of Retentive pins should be planned and there are many ...Read More

Abrasive materials used in Dentistry and their Uses

Abrasive materials are mainly minerals which are used in Finishing and Polishing a Restoration, Abrasive materials are used to remove the uneven or rough surface on the surface of restorative materials which will lead to debris accumulation and decrease the surface smoothness. These Dental Abrasive material particles coat the surface of the ...Read More

What is Terra Alba in Dentistry

Terra alba (CaSO4.2H2O) is the set Gypsum which acts as an Accelerator mixed with Dental Plaster to accelerate the setting reaction. Terra Alba is also called as Calcium Sulphate Dihydrate. Importance of Terra Alba: Setting time changes significantly with the amount of Terra Alba present in the mix, hence it is used in ...Read More

Zinc Poly Carboxylate Cement

Zinc Polycarboxylate cement was the First cement that was developed with the property of an adhesive bond to tooth structure along with some metallic cast restorations.  COMPOSITION: Zinc Polycarbolylate cement is available as powder and liquid Also as a Water settable cement in which the polyacrylic acid is freeze dried powder that ...Read More

History and Evolution of Pit and Fissure Sealents

Definition of Pit and Fissure and Sealents: A material that is introduced into the occlusal pit and fissure of caries susceptible teeth, thus forming a micromechanically–bonded, protective layer cutting access of caries producing bacteria from their source of nutrients. History and Evolution of Pit and Fissure Sealents 1922– “PROPHYLACTIC ODONTOTOMY”-HYATT 1939– Gore ...Read More

Metal ceramic crowns Indications, Contraindications, advantages and disadvantages

Metal Ceramic Crowns or Porcelain fused metal crowns are used to get both Strength(due to metal) and Esthetics(due to Ceramic) which make it an ideal type of crown for every tooth be it Anterior or Posterior. Indications of Metal Ceramic: The metal ceramic crown is indicated on teeth that require complete coverage, ...Read More

Dental Ceramics | Dental Porcelains Composition and Classification

Ceramics or Porcelains are chemically intimate mixtures of metallic and non metallic elements, that allow ionic (K2O) and/or covalent bonding (SiO2) to occur. The most common ceramics used in dentistry are alloys of 3 main metallic oxides (SiO2, Al2O3, K2O). Composition of Dental Ceramics and Dental Porcelain: 1) Feldspar: 60 to 80%. ...Read More

7 ways to prevent Dental Corrosion

Prevention of Corrosion is very important for the long term success of a Dental Restoration, so you have to take the following precautions to prevent corrosion from ruining your Restoration. How to prevent Dental Corrosion First lets know about Dental corrosion a bit and then proceed to Steps which help in prevention: ...Read More

Corrosion – In Dentistry

Definition: A Chemical reaction between a metal and its environment to form metal compound. A Chemical or Electrochemical process through which a metal is attacked  by natural agents such as air and water resulting in partial or complete dissolution, deterioration or weakening of any solid substance. A common Example of corrosion is ...Read More

Ideal Properties of an Impression Material

Desirable or Idela Properties of an Impression material: These are the properties a Operator looks at, which make it easy for him/her to operate and get an Ideal Impression. The All the Properties should be fulfilled to produce an Ideal Impression material, till date such an impression material has not been discovered ...Read More

Agar Reversible Hydrocolloid Impression Material

Agar Impression material is an Hydrocolloid Reversible Impression material. It is called Reversible Impression material because of its property of reversing their physical state, which in reusing the impression material for multiple number of impressions. Agar Hydrocolloid was the first successful elastic impression material to be used in dentistry. History of Agar ...Read More