RESTORATIVE DENTISTRY QUIZ

Vocabulary flashcards covering key concepts from the Restorative Dentistry quiz transcript.

Packable Composite

A type of composite resin that is $48\% - 65\%$ filled by volume with an average particle size of 0.7\,\text{\mu m} - 20\,\text{\mu m}, featuring improved handling properties from porous fillers, fibrous fillers, and resin matrix.

Amalgam Finishing and Polishing Timing

Ideally completed after $24$\,hours following placement.

Composite Finishing and Polishing Timing

Ideally completed at the time of placement.

Major Components of Composite Dental Materials

Includes resin matrix, coupling agent, and fillers (bonding agent is separate).

Flowable Composite Shortcomings

Compared to hybrid composites, flowable composites are weaker, wear faster, and shrink more when polymerized.

Common Effects of Polymerization Shrinkage

Includes microleakage, microcracking of enamel causing white lines around margins, and postoperative sensitivity.

First Number in Hand Instrument Formula

Represents the width of the blade in tenths of a millimeter.

Gamma-1 Phase

The silver-mercury matrix phase of amalgam that binds unconsumed alloy particles together and provides intermediate corrosive resistance.

Multifactorial Etiology of Dental Caries

Includes agent, host, environment, and time.

Blade Length in Formula $10\text{-}7\text{-}15$

The second number represents the blade length in millimeters, which is $7.0$\,mm.

Causes of Post-Operative Sensitivity in Amalgam Restorations

Includes voids, lack of dentinal sealing, and lack of adequate condensation (especially lateral condensation).

Highest Percentage Component of Amalgam Alloy

Silver.

Components of Hand Cutting Instruments

Composed of the handle, shank, and blade.

Senile Carious Lesions

Carious lesions most commonly found on the root surfaces of teeth.

Main Advantage of High Copper Amalgam Alloy

Elimination of the gamma-2 phase.

Michael Buonocore

Introduced acid etching with phosphoric acid as an etchant.

Rafael Bowen

Developed Bis-GMA and filler particles for composite resin.

Enamel Etching Concentration

Typically completed with $37\%$ phosphoric acid.

Triangular Wedge

Indicated when deep gingival extension of a proximal box is anticipated.

Discoid & Cleoid

Instruments from the Chisel family used for amalgam carving.

Most Important Factor in Caries Etiology

Microorganism.

Actinomyces viscosus

The most common bacterial cause of root caries.

Lactobacillus acidophilus

The most common bacterial cause of dentinal caries.

Salivary Flow and Viscosity Effects on Caries

Reduced salivary flow increases caries susceptibility, whereas reduced viscosity decreases caries susceptibility.

Radiographic Appearance of Caries

Caries looks smaller in a radiograph than its actual size.

Xylitol

A sugar that prevents the binding of sucrose with cariogenic microorganisms.

Marginal Leakage of Amalgam

Decreases as the restoration ages due to corrosion product formation.

Dextrans

Insoluble and sticky polymers that allow dental plaque to adhere to teeth.

Maxillary 1st Molar Sealant Indication

The tooth most likely to benefit from occlusal sealant placement among premolars and molars.

Mandibular 1st Premolar Pulp Exposure Risk

The tooth most likely to be subjected to accidental pulp exposure during cavity preparation due to its crown anatomy.

Carbide Bur Blade Effect

A greater number of cutting blades results in less efficient cutting and a smoother surface.

Arrested Caries

Caries that appears very dark brown to black, hard to touch, smooth, and has stopped progressing.

Clearance Angle

In dental burs, the angle formed between the back of the blade and the tooth surface.

Edge Angle

The angle formed between the rake face and clearance face of a bur blade.

Tin Oxide

An agent used intraorally to give a high luster to amalgam restorations.

Class I Cavity Preparation Commonality

Preparations for amalgam, direct filling gold, and gold inlay all feature occlusal divergence of mesial and distal walls.

Axial Wall Faciolingual Plane in Class II

Should be prepared parallel to the dentino-enamel junction.

Flowable Composite Resin

Characterized by easy manipulation and handling, favorable wettability, but low filler content.

Materials Inhibiting Composite Polymerization

Includes ZOE, cavity varnish, and oil of cloves (glass ionomer does NOT inhibit polymerization).

Silver Diamine Fluoride

The form of silver added in the Silver Modified ART (SMART) technique.

Direct Pulp Capping Indication

Indicated when there is an accidental mechanical exposure in a clean, dry field.

Saliva Contamination Management After Etching

Rinse away the saliva with water, dry the preparation with air, then repeat the etching procedure.

Teeth Whitening Tissues Affected

Affects both enamel and dentin.

Dark Zone of Enamel Caries

The zone of enamel caries also known as the zone of remineralization.

Gingival Margin Trimmer

An instrument (e.g., formula $13\text{-}80\text{-}8\text{-}14$) used to bevel the axiopulpal line angle in a Class II cavity preparation.

Fissurotomy

A procedure to treat incipient decay involving conservative preparation of occlusal pits and fissures using air abrasion or special burs, often restored with flowable composites.

Ormocers

Organically modified ceramics that link glass-like inorganic components with organic polymers, offering high hardness, low polymerization shrinkage, and toothlike thermal expansion.

Smart Composites

Composite materials that release ions such as fluoride, hydroxyl, and calcium to inhibit bacterial growth and reduce secondary caries formation at restoration margins.

Compomers

Polyacid-modified composites that incorporate properties of resin ionomers and composites; self-adhesive, light-curing, and fluoride-releasing (e.g., Dyract by Dentsply).