A. A prolonged curing cycle
B. Lack of sufficient pressure applied to flask
C. Insufficient acrylic resin monomer
D. Prolonged bench cooling after curing
Correct Answer: Lack of sufficient pressure applied to flask ✔
Last Updated: February 07, 2020
Related MCQs
- Which of the following is present in the powder of the acrylic resin__________?
- Boiling point of methyl methacrylate__________?
- The main advantage of composites over unfilled direct filling resin is their__________?
- Composite has__________?
- Acrylic resins are used for__________?
- To prevent porosity in self-cure acrylic resin, curing should be carried in__________?
- Cross linking in denture base resin is contributed by__________?
- Hydroquinone is added to methyl methacrylate monomer__________?
- Which of the following inhibitor accelerator system uses light activation composite ?
- Which of the following is an example of a composite material ?
- In heat cure denture base acrylic resins the monomer is__________?
- Light cure system, side effect is__________?
- Bonding of composite resins to tooth structure is by__________?
- The type of spatula used to mix composite is__________?
- Which of the following may result if an excessive amount of monomer is incorporated into an acrylic resin mixture ?
- Benzoin methyl ether in a polymer indicates that they may be cured in the presence of__________?
- Porosity of denture base is due to__________?
- The imperfection seen on the lingual flange of a lower denture caused by rapid heating during a curing cycle is called__________?
- The particle size in microfilled composites is__________?
- A material which is a mixture of two different materials and its properties are__________?
- Co-efficient of thermal expansion is highest for__________?
- The latest method of curing denture base resins__________?
- One of the claims for the superiority composite resin restoration over silicate cement restorations is that the resin restorations__________?
- To cure a heat cure resin, a proper heating cycle is necessary__________?
- When restoring a tooth with resin material, acid etching can do all of the following except__________?
- For esthetic areas where high luster is required the restoration used usually__________?
- Which of the following absorbs maximum amount of water ?
- The restoration which shows percolation and shrinkage along the margins is__________?
- The commonly used laser for curing composite resin is__________?
- What is the polymerization shrinkage if 3:1 powder: liquid ratio is used__________?
- Macromolecules in Dental Resin is attached by__________?
- Along with polymerisation shrinkage, one of the major disadvantages of polymethyl methacrylate as denture base resin are its poor__________?
- The most common coupling agents are organic silicon compound called__________?
- One bottle system of adhesive resins__________?
- Most advantageous indication of acid etching is__________?
- VLC resins are also called as__________?
- Cold cure acrylic expand in water by__________?
- Which of the following is NOT true of polymethyl methacrylate ?
- Etchant preferred in gel from than in liquid form__________?
- During polymerisation of acrylic resin, above what temperature benzoyl peroxide form freeradicals__________?
- Etching depth after 30 sec for orthodontic bracket with orthophosphoric acid is__________?
- The accepted polymer to monomer ratio for packing of polymethyl methacrylate resin is__________?
- Residual monomer content of chemically activated resins is__________?
- Dentin conditioner has the following function__________?
- The process wherein two or more chemically different monomers, each with some desirable property, can be combined to yield specific physical properties of a polymer is known as__________?
- Denture acrylics contain cross-linking agents mainly to improve their__________?
- Subsurface porosity is due to__________?
- If resin is packed in sandy stage what will be seen in the processed denture ?
- Which one of the following is used as filler in composite resins ?
- Insufficient closure of the flasks during packing of denture base resin can result in__________?
- Quartz tungsten light cure device minimum output of energy should not be less than__________?