Cement in dentistry is a substance composed of water and a special powder. This dental cement can be used for orthodontics, bridges, dental restoration, etc. He used it. By studying this article, you can better understand the application and the permanent and temporary differences between the types of this material.
In general, however, it can be considered a glue that has a chemical composition and binds two surfaces to one another. The ideal tooth cement glue should have these features. It should not stimulate pulp, not lose pressure from the bite, be resistant to decay and have good adhesion, and finally can create a good bond between the repair material and the tooth. In the following, we will further examine the characteristics of this material.
Although we have said above the features of an ideal cement adhesive, you should also consider:
- Oral tissues should not be allergic to this substance.
- The thickness of the layer that is created is low.
- Do not dissolve in fluids and saliva.
- Cover the gaps and cavities created during treatment.
- A dentist can use it easily.
- Have acceptable adhesion to the tooth.
- Be identifiable in radiography.
- The stable result over a long period timetable
Types of cement in dentistry
Cement is one of the most widely used and important materials in the dental industry. Cement is normally liquid and after applying it to the tooth, it becomes solid.
Types of cement are used in pasting veneers and bridges on natural teeth, insulating prosthetic appliances and temporarily rebuilding teeth. In general, any material that has adhesion properties and is used as a sticky substance in dental restorations is called cement.
There are different types of cement with different applications, advantages, and disadvantages in the market, which we will introduce in the following article.
Dental cement can be generally divided into 6 main groups, the most famous of which will be reviewed.
- Zinc phosphate cement
- Polycarboxylate cement
- Cement Glass Ionomer Luting
- Polyacid-modified composite cement
- Cemented glass ionomer modified with resin
- Resin-based cement
Zinc Phosphate Cementation
One of the types of cemented dentistry is zinc phosphate cement with a combination of zinc oxide and magnesium oxide and phosphoric acid liquid, one of the uses of this cement is temporary dressing and proper filling of deciduous teeth, amalgam restorations, buildup paste, and inlay and base and liner for amalgam and composite repairs.
This cement has a low price and is used for use in orthodontic bands, bridges, cladding, and liners due to its low thickness and high elastic strength.
Zinc phosphate cement is not antibacterial and is less difficult than other cement due to its low thickness.
These cement are suitable for intraoral splints and have a combination of zinc oxide, magnesium oxide, and phosphoric acid.
Advantages and Disadvantages of Zinc Phosphate Cement in dentistry
This cement is one of the oldest materials in the dentistry profession. In the list below, we will state the advantages and disadvantages of this cement.
- Easy mixing and mixing in water
- Easy erasure
- Low thickness
- High elastic strength
- Very low pH
- Low grafting and compatibility with tooth structure and tissue
- The solvent in saliva and saliva
- Low hardness
- Due to low pH, it has acidic properties and pulp may be stimulated.
- It can only be mechanically sealed.
Carboxylate Cement in dentistry Investigation
This cement is powdered and liquid and has the same combination as zinc phosphate.
The liquid of this cement has a limited use date and can no longer be used if the water in it evaporates.
Polycarboxylate cement is a well-selling type of cement and is used as a resin cement for filling between teeth and orthodontic brackets.
This cement is very resistant to discoloration for a long time and its positive features can is easy to use and does not cause pain.
This article also has advantages and disadvantages that are listed for convenience in reading below:
- No pulp stimulation
- Relatively strong graft with tooth structure
- Elasticity and tensile properties are higher than zinc phosphate.
- After surgery, it causes little sensitivity in the patient.
- It’s very hard and difficult to clean.
- So, the mixing becomes viscosity.
- It has a short life in an acidic environment.
Luting Glass Ionomer Cement in dentistry Review
This tooth adhesive is one of the best-selling and best-selling adhesives in the market, with more advantages than its disadvantages. Let’s continue to explore these features.
Cement in dentistry Advantages:
- Fluoride release
- Good adhesion to teeth and dentin
- Easy to combine
- Cheap price
- Low contractile state
Cement in Dentistry Disadvantages:
- Solvent in water
- Low time limit
- Possibility of pulp sensitivity
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Investigation of poly acid-modified composite cement
The features of this category of cement are slightly different from others, which you can check out below:
- Relatively high bond strength with tooth structure
- Not dissolving in oral fluids
- undergoing the expansion of hygroscopic
- Bond strength disappears after a little while.
Zinc Oxide Cement Review
Zinc oxide cement is used for temporary coatings.
This cement is a weak dental cement with little strength and resistance to wear and solubility.
This cement has been widely used in dentistry since 1890. Zinc oxide cement affects the pulp of the tooth and is a good option for temporary cement.
Eugenol zinc oxide cement is one of the most widely used cement in terms of application and is divided into three general categories.
The first type is in the form of two doughs and is used as a temporary cement.
The second type of cement is used to permanently attach cast repairs and creates less irritability on teeth and pulp than most other cement.
The third type of zinc oxide cement is used as a base and insulation and is one of the types of dental cement that has a sedative effect and prevents allergies.
Glass Ionomer Cement Review
Glass ionomer cement is used to repair and regenerate children’s teeth. Glass ionomer cement is one of the types of dental cement that is more applicable in the dental industry due to its harmony with teeth than other cement.
This restorative material is made of silicate glass powder and its applications include filling broken teeth and attaching tooth crowns and orthodontic brackets. One of the advantages of this cement is that by releasing fluoride ions, it helps protect teeth against damage and decay.
Glass-ionomer cement should not be over-dried when used because it increases the likelihood of allergies.
The side effects of using glass ionomers are very low and the high flexibility of these materials against composite fillers is one of the advantages of glass ionomers, but their low shelf-life has made glass ionomers a variety of temporary dental cement.
This cement has low abrasion resistance, so it needs to be replaced after a while. Selection among composite compounds and glass ionomer cement depends on tooth damage and wear. If the tooth damage is not deep and requires temporary restoration at the root surface, glass ionomer cement is a more suitable option as composites are used for deeper fractures and repairs.
Investigation of Resin-Modified Glass Ionomer Cement (Glass Ionomer Resin)
This cement has been welcomed in dentistry for decades and has great features and benefits. Of course, some of the negative points have made it impossible to consider this cement as complete cement in every way.
- Easy mixing and mixing
- Easy erasure
- High stability over a long time
- Fluoride release capability
- Ease of use
- Acidic and pulpit-creating specialty
Investigation of Cement Based on Resin
This cement can be easily banded to the teeth with Kyvernig. To use this cement, you need a separate band system. This cement has a high sensitivity, so when using it, be sure to use appropriate techniques and prevent contamination that does not lower its quality.
- Strongest and strongest adhesive
- Highest tensile and elastic state
- Neutral PH
- Requires special expertise and techniques to use
- Too hard
- Possibility of pulp sensitivity
- Cement Application in Dentistry
Zinc phosphate cement: bridges, cladding, orthodontic bands
Polycarboxylate cement: liner, orthodontic bands
Cement glass luting ionomer: metal restoration or metal ceramic, liner
Resin-modified glass ionomer cement: used for a variety of coatings, orthodontic appliances, liners
Resin-based cement: Used for coatings, applicable to resin fiberpsets
Permanent Dental Cement
Permanent cement can be used for permanent pasting. Usually, this adhesive is used for tooth crowns or bridges. These materials can fill the empty spaces between the teeth properly.
The criteria for assessing the quality of a permanent tooth stick are as follows:
- Good adhesion on the margins and sides of the tooth
- Being environmentally friendly
- High strength and durability
- Insoluble in saliva
- Attractiveness and appearance beauty
- Low thickness
Temporary Dental Cements
Temporary dental cement is used to temporarily attach dental restorations and veneers between treatment sessions. It is also used for tooth dressing for a maximum period of three to four weeks. This cement usually does not have high resistance and its shelf-life is water soluble and creates a moderate adhesion between the tooth and the restorative material.
In general, a temporary tooth adhesive should have the following characteristics:
- Convenience when using
- Good shelf life, but not in a way that’s hard to separate.
- Convenient cleaning
- Compatible with tooth tissue
- Don’t interfere with permanent glue