Back to AI Flashcard MakerNursing /DHG 130 - Exam 1 CH 37 Sealants
In sealant placement, the enamel surface is prepared by the application of phosphoric acid, which etches the surface to provide mechanical retention for the sealant?
Acid Etchant
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Key Terms
Term
Definition
In sealant placement, the enamel surface is prepared by the application of phosphoric acid, which etches the surface to provide mechanical retention for the sealant?
Acid Etchant
Plastic material used for dental sealants?
Bis-GMA (bisphenol A-glycidyl methylacrylate)
In general, the resistance to flow or alteration of shape by any substance as a result of molecular cohesion?
Viscosity
Physical adherence of one substance to another; the adherence of a sealant to the enamel surface is accomplished by an acid-etching technique hat leaves microspaces between the enamel rods; the sealant becomes mechanically locked (bonded) in these microspaces?
Bonding (mechanical)
Criteria for ideal sealant?
achieve prolonged bonding to enamel biocompatible w/ oral tissues simple application procedure free-flowing, low viscosity material capable of enterin...
Indications for sealant placement?
Xerostomia Ortho Diet high in sugars Incipient pits and fissures caries
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| Term | Definition |
|---|---|
In sealant placement, the enamel surface is prepared by the application of phosphoric acid, which etches the surface to provide mechanical retention for the sealant? | Acid Etchant |
Plastic material used for dental sealants? | Bis-GMA (bisphenol A-glycidyl methylacrylate) |
In general, the resistance to flow or alteration of shape by any substance as a result of molecular cohesion? | Viscosity |
Physical adherence of one substance to another; the adherence of a sealant to the enamel surface is accomplished by an acid-etching technique hat leaves microspaces between the enamel rods; the sealant becomes mechanically locked (bonded) in these microspaces? | Bonding (mechanical) |
Criteria for ideal sealant? | achieve prolonged bonding to enamel biocompatible w/ oral tissues simple application procedure free-flowing, low viscosity material capable of entering narrow fissures low solubility in the oral environment |
Indications for sealant placement? | Xerostomia Ortho Diet high in sugars Incipient pits and fissures caries |
Sealants should be placed on? | Newly erupted teeth Deep, irregular pits and fissures Other restorations/carious lesions |
Contraindications for sealant placement? | Proximal Caries Shallow pits/fissures Low caries risk Tooth not fully erupted Primary tooth near exfoliation |
T/F The bacteria in incipient dental caries at the base of a well-sealed pit or fissure have no access to nutrients required for survival | True |
Filler Content; Increases bond strength and resistance to abrasion and wear. Increased viscosity is? | Filled |
Filler Content; no particles (clear) Less resistant to wear. May not require occlusal adjustment after placement? | Unfilled |
Filler Content; Enhances caries resistance. Helps remineralize incipient caries at base of pit or fissures? | Fluoride releasing |
What is the purpose of acid etch? | To produce irregularities or micropores in the enamel. It allows the liquid resin to bond or mechanical locking |
What is the purpose of sealants? | To seal off pits/fissures To prevent bacteria/initiation of dental caries |
A pit and fissure sealant is an? | Organic polymer (resin) |
T/F A pit and fissure sealant is an organic polymer (resin) that flows into the pits and fissure of a posterior tooth and bonds by mechanical retention to the tooth | True |
An organic polymer resin flows into the pits and fissures and bonds by? | Mechanical retention to the tooth |
Fluoride is used to protect_______, while sealants reduce incidence of _________? | Smooth tooth surface Occlusal Caries |
Incidence of New pit and fissure Caries can be lowered by? | 86% |