Download EFDA Board Exam Practice: Dental Anatomy, Oral Health, & Restorative Materials and more Exams Dentistry in PDF only on Docsity!
PA EFDA BOARD EXAM LATEST
VERSION 2025 - 2026 REAL EXAM 300+
QUESTIONS AND CORRECT
ANSWERS|AGRADE
Which of the following is true of primary teeth in contrast to permanent teeth? A. Crowns that are narrower at the cementoenamel junction (CEJ) than permanent teeth B. Darker enamel than permanent teeth C. Relatively thicker enamel than permanent teeth D. A tooth crown that is longer in relation to the total tooth length than is found in permanent teeth - ANSWER- A. crowns that are narrower at the cementoenamel junction (CEJ) than permanent teeth Which of the following is true of the mandibular canine tooth? A. It is narrower labiolingually and mesiodistally than a maxillary canine B. It has a larger and more developed cusp than the Maxillary canine does C. It has a sharper cusp tip than a maxillary canine does D. It has a mesial cusp slope that is longer than the distal cusp slope when it first erupts whereas the opposite is true for a maxillary canine tooth - ANSWER- A. It is a narrower labiolingually and mesiodistally than a maxillary canine
Which of the following is true regarding differences between the maxillary and mandibular central incisors? A. Mandibular central incisors are larger than the maxillary central incisors in all dimensions B. Labial surfaces of the maxillary central incisors are more rounded from the Incisal aspect than those of the mandibular central incisors C. The Cingular is less prominent on the maxillary central incisors than the cingulum on the mandibular central incisors D. The marginal dishes are more prominent on mandibular incisors than they are on the maxillary incisors - ANSWER- B. Labial surfaces of the maxillary central incisors are more rounded from the Incisal aspect than those of the mandibular central incisors Which permanent maxillary teeth have normally have 3 roots - ANSWER- First molars Which premolar teeth have buccal and lingual roots? - ANSWER- Maxillary first premolar Which teeth are usually the last teeth to be lost? - ANSWER- canines Which cavity classification includes caries on the interproximal surface of anterior teeth? - ANSWER- Class III Which tvpe of matrix is most commonly used for amalgam restorations? - ANSWER- Tofflemire matrix The metal alloy used in amalgam is primarily composed of? - ANSWER- Silver Which teeth are the largest and strongest maxillary teeth? - ANSWER- first molars Which teeth are the smallest and most symmetric teeth in the permanent dentition? - ANSWER- mandibular central incisors
The goal of dentistry is to help people of all ages obtain optimal oral health throughout their lives. - ANSWER- preventive Dental professionals generally recommend that patients use toothbrushes. - ANSWER- soft-bristled nylon Every person needs the same patient education for oral health needs true or false? - ANSWER- False How can a parent avoid spreading the types of bacteria that cause caries in a baby? - ANSWER- The parent should not put anything that has been in his or her own mouth into the mouth of the baby. Oral hygiene should begin: - ANSWER- before the baby has teeth Plaque can reform in about how many hours after a cleaning? - ANSWER- 24 hours The first step in patient education is to: - ANSWER- listen carefully and make the patient an active and responsible partner rather than a passive object. What can be caused by vigorously scrubbing the teeth with a toothbrush? - ANSWER- Abrasion Which of the following is not recommended when applying a Flouride varnish? - ANSWER- Thoroughly dry the teeth Which of the following is the current recommended concentration of fluoride in drinking water recommended by the U.S. Department of Health and Human Services? - ANSWER- 0.7 mg/L Which of the following is the most effective means to prevent dental caries? - ANSWER- Fluoride
What is the primary source of topical fluoride? - ANSWER- Fluoridated toothpaste What is used to protect difficult to clean occlusal surfaces of teeth from caries? - ANSWER- Sealant The term used to identify food that causes dental caries: - ANSWER- Cariogenic All of the following are steps in finishing a composite restoration except: A. Burnishing B. Reducing composite C. Fine finishing with disks and burs D. Polishing with strips and paste - ANSWER- A. Burnishing Intermediate restorative material should be selected to restore a tooth that has: - ANSWER- Lost a restoration A is defined as a mixture of two or more metals - ANSWER- Alloy A properly reiterated amalgam mix should be: - ANSWER- A soft, pliable mass Before they can be marketed, new dental materials must undergo strict evaluation by the: - ANSWER- ADA Biting off a piece of taffy is an example of stress. - ANSWER- tensile Chewing is an example of stress - ANSWER- compressive Composites can be used for class restorations. - ANSWER- I, II, III, IV, and V
Retention holds a material in place and seals the structures together. True or false? - ANSWER- False The addition of alloy to glass ionomers produces a product that can be used for core buildups and the repair of fractured cusps and amalgam fillings as well as abutments for overdentures. - ANSWER- Silver-tin The conventional or traditional composites, which contain the largest filler particles and provide the greatest strength, are known as composites - ANSWER- macrofilled The curing process in which it is the most critical that the materials are mixed and placed within the working and setting times is with: - ANSWER- auto-cured materials The curing time of composite restorations is not influenced by: - ANSWER- the base used The dental restorations created in the laboratory by the dental laboratory technician are classified as - ANSWER- indirect restorations Instrument used to smooth the amalgam surface is: - ANSWER- A burnished The process of setting of a material is correctly referred to as: - ANSWER- Curing The purpose of packing the amalgam in the cavity preparation is to it. - ANSWER- condense The resin matrix component of composite is dimethacrylate, a fluid-like material also referred to as: - ANSWER- BIS-GMA
To adjust the occlusion on a recently place amalgam, the patient should be instructed to bite on the articulating paper. - ANSWER- lightly To ensure an accurate ratio of alloy and mercury, the best protocol to follow is to - ANSWER- use premeasured capsules What is an advantage to using glass ionomer as a restorative material? - ANSWER- Glass ionomer releases fluoride after their final setting Dental sealants replace other preventative care. True or false? - ANSWER- False Enamel that has been etched has what appearance when dry? - ANSWER- Frosty If you use an air polishing device that uses sodium bicarbonate for cleaning enamel before sealant placement, the etching step should be repeated for a second time, or should be applied to the surface for 10 seconds to neutralize the sodium bicarbonate and then thoroughly rinsed off with water before applying the etch. - ANSWER- 3% hydrogen peroxide Properly place dental sealants are % effective in protecting against development of Carie's in sealed surfaces - ANSWER- 100% Sealant material should not be stored in proximity to - containing products. - ANSWER- Eugenol Sealants are indicated for which areas? - ANSWER- pits and fissures Sealants are used in only % of low-income children. - ANSWER- 30
D. Patient has adequate fluoride program - ANSWER- C. Adjacent teeth with no occlusal decay Which technique error most commonly leads to sealant failure? - ANSWER- moisture Which technique is sometimes used before sealant application to open fissures and remove slight decay? - ANSWER- Microabrasion Which type of sealant is polymerized by chemical reaction? - ANSWER- self-cured What is occlusion? - ANSWER- The touching together of the maxillary and mandibular teeth during various jaw movements (when in fully closed position) What is intercusp position (ICP) or maximum intercuspation (MIP) - ANSWER- Tooth to tooth contact (the way the teeth fit together) intercusp position (ICP) or maximum intercuspation (MIP) is referred to as what? - ANSWER- Centric contact position Eccentric contacts is - ANSWER- Movement out of intercuspal position, when the lower jaw has moved from centric position Lateral excursion is: - ANSWER- Movement of the jaw to the right or left Protrusive movement is: - ANSWER- Movement of the jaw straight forward Anterior teeth are used to food - ANSWER- Tear Posterior teeth are used to food - ANSWER- Grind
When restoring posterior teeth, the marks left by the articulating paper should appear as: - ANSWER- Dots Marks that appear dense, halo, and/or donut shaped indicates that the tooth is what? - ANSWER- Touching sooner than the other teeth When checking the bite what color of articulating paper do you use? - ANSWER- Blue or red A high bite can cause what? - ANSWER- •Tooth wear
- pain or sensitivity
- fracture or tooth/restoration •movement (shifting)
- loosening of interferences with TMJ and muscle of mastication The lingual cusp tips of maxillary posterior and buccal cusp tips of the mandibular are: working or non working cusps? - ANSWER- Working cusps The buccal cusp tips of maxillary posterior and lingual cusp tips of mandibular are: working or non working cusps? - ANSWER- Non working cusps The three mechanisms that generally overlap and cause accelerated deterioration of the teeth are: - ANSWER- Stress Friction Corrosion The gradual loss of tooth structure along the biting surface due to occlusal wear is: - ANSWER- Attrition Oral habit of involuntary grinding and clenching of teeth is: - ANSWER- Bruxism Smooth worn areas on the occlusal or Incisal surfaces of teeth.. Indicates premature contact is: - ANSWER- Facets
The primary dentition consists of what teeth? - ANSWER- Molars, canines, incisors Primary teeth are lettered in the maxillary arch from right to left - ANSWER- A-J Primary teeth are lettered in the mandibular arch from left to right. - ANSWER- K-T Junction of two surfaces is: - ANSWER- Line angle Junction of three surfaces is: - ANSWER- Point angle Normal occlusion is: - ANSWER- Centric occlusion Contact of the teeth during biting and chewing movements is: - ANSWER- Functional occlusion Abnormal or malpositioned relationship of maxillary or mandibular teeth is: - ANSWER- Malocclusion Normal occlusion is considered which class of malocclusion? - ANSWER- Class I An overbite is considered which class of malocclusion? - ANSWER- Class II An underbite is considered which class of malocclusion? - ANSWER- Class III creates a temporary wall when doing restorations - ANSWER- Matrix system Molars are used to food - ANSWER- Chew and grind
Posterior matrix is used most commonly for class restorations - ANSWER- Class II Two types of universal matrix bands are: - ANSWER- Universal and extension Smaller circumference of the matrix band is the edge and is always placed - ANSWER- Gingival edge, down towards the gingiva Larger circumference of the matrix band is the edge and is always placed - ANSWER- Occlusal edge, up towards the occlusal surface Wedges are placed into the: - ANSWER- Embrasure Embrasures are: - ANSWER- Triangular space between two teeth Improper placement of wedge can result in: - ANSWER- •overhang
- cupping When placing the posterior matrix, the diagonal slotted surface is always towards the - ANSWER- Gingiva Matrix retainer is always positioned from the surface - ANSWER- Buccal Matrix band is seated approximately mm below gingival margin - ANSWER- 1 mm The seated matrix band extends no further than mm above the occlusal surface - ANSWER- 1.5-2 mm Anterior matrix system (Mylar strip or celluloid strip) is used for what class restorations? - ANSWER- Class III and IV restorations
Insulators are also referred to as: - ANSWER- Bases (cements in a thick layer) Insulators are placed to do what? - ANSWER- To insulate the pulp from thermal irritation Types of insulators are: - ANSWER- •Zinc oxide eugenol (ZOE)
- Zinc phosphate cement
- Zinc ploycrylic/carboxylate/polycarboxlate cement have the ability to soothe the sensitive pulp or reduce the irritability of a pulp - ANSWER- Obtundants are used in deep cavity preparations where the remaining layer of dentin over the pulp is ver thin in order to stimulate a thickening of the dentin layer - ANSWER- Pulp stimulators Pulp stimulators stimulate the pulp to: - ANSWER- Form a layer of secondary reparative dentin Types of stimulators are: - ANSWER- • Dycal
- Vitrabond/limelite Indirect pulp cap is over a: - ANSWER- Near pulp exposure Direct pulp cap is over a: - ANSWER- Area of exposed pulp Direct pulp cap needs to be placed by a - ANSWER- Dentist If there is minimal depth of (0.5-1.5mm) into dentin you would use: - ANSWER- Varnish If there is moderate depth of (1mm) into dentin but more than (0.5mm) from pulp you would use: - ANSWER- Calcium hydroxide
Renewal of license is every years beginning on of each If there is near pulpal exposure (very deep) you would use: - ANSWER- Calcium hydroxide and a insulator reinforcer If there is pulpal exposure you would use: - ANSWER- Calcium hydroxide and insulator reinforcer If you move you have how many days to notify the state board of your new address? - ANSWER- 10 days Continuing education require how many hours during the preceding biennial period? - ANSWER- 10 hours At least % of the required hours shall be taken in lecture or clinical presentations - ANSWER- 50% A maximum of % of the required credit hours may be taken through individual study - ANSWER- 50% odd year - ANSWER- 2 years, April 1st Most important document maintained for each patient in a dental practice is a: - ANSWER- Patient record What should always be included on a patient record? - ANSWER- • Date
- Tooth #
- completed treatment (what we did)
- signature In the patient record the procedure should always be documented when?
- ANSWER- After the procedure is complete, NOT at the end of each day
- Protects tooth from moisture contamination
- Application of medicaments
- Improves access and retraction of soft tissue
- Improves properties of dental materials
- Better visibility, and also dry and clean
- Economical Dental dam material can be: - ANSWER- Latex or non latex Dental dam comes in what sizes? - ANSWER- • 6x
- 5x Dental dam comes in what thicknesses? - ANSWER- Thick, medium, heavy Plastic dental dam frame is placed: - ANSWER- Under the dental dam Stainless steel dental dam frame is placed: - ANSWER- Over the dental dam Dental dam napkin is placed where? - ANSWER- Between patients face and dental dam Dental dam punch is used for what? - ANSWER- To punch holes in the dam Large hole (dental dam) is for which teeth? - ANSWER- Molars Medium hole (dental dam) is for which teeth? - ANSWER- Premolars Small hole (dental dam) is for which teeth? - ANSWER- Maxillary anteriors Smallest hole (dental dam) is for which teeth? - ANSWER- Mandibular anteriors
When inserting stabilizing cord the cord is so that it becomes narrow and slips easily between the teeth - ANSWER- Stretched The dental dam clamp is always placed on the tooth so that the bow is located on the aspect - ANSWER- Distal The dental clamp is designed to fit where on the tooth? - ANSWER- The cervical area below the height of contour at, or slightly below the cementoenamel junction What two types of dental dam clamps are there? - ANSWER- Winged and wingless clamps What is a dental dam stabilizing cord? - ANSWER- A disposable latex cord that is an alternative to the conventional clamp method of securing the dental dam Dental dam stabilizing cord is available in three sizes: - ANSWER- Extra small, small, and large After the stabilizing cord has been placed and released, the cord and holds the dam tightly in place. - ANSWER- Resumes its original shape Should you ligate your dental dam clamps? - ANSWER- Yes ALWAYS! One step dental dam placement method means: - ANSWER- Placed on all at once Two step dental dam placement method means: - ANSWER- Clamp is placed first and then the dam is stretched over top
