RHS Exam Prep (2023) || A Verified A+ Pass.
Zygoma correct answers cheekbone; raidopaque
coronoid process correct answers Bone projecting from anterior of mandible; raidopaque
Zygomatic process of maxilla correct answers A bony prominence that makes up a portion of the
cheekbone; J or U shaped; radiopaque
maxillary tuberosity correct answers A rounded prominence of bone on the alveolar ridge; blood
vessels and nerves for the maxilla enter through this; radiopaque
External oblique ridge/line correct answers Linear prominence of bone on the external aspect of
the mandible; radiopaque
Mental foramen correct answers Two openings in the bone on the external mandible through;
blood vessels and nerves enter and supply to lower lip; small, round, radiolucent
alveolar process correct answers upper aspect of the body of the mandible; radiopaque
alveolar ridge correct answers bony ridge that contains the alveoli (tooth sockets); radiopaque
Mental process or ridge correct answers Linear prominence of bone on the external surface of the
anterior mandible that extends from the premolar region; radiopaque
Nasal septum (vomer bone) correct answers Bone structure that divides the left/right of the nasal
cavity; radiopaque
Nasal fossa (cavity) correct answers Two large depressions of bone located above maxilla and
divided by the nasal septum; radiolucent
anterior nasal spine correct answers a triangular projection from the floor of the nasal fossa,
located at junction of fossa and septum; radiopaque
Lateral fossa/canine fossa correct answers slightly concave area in bone located below and
between the maxillary lateral incisors and maxillary canine; radiolucent
Mental fossa correct answers Depressed area of bone on the external surface of the mandible;
radiolucent
Hamulus/Humular process correct answers Small, hook shaped portion of bone extending from
sphenoid bone down and located behind maxillary tuberosity region; radiopaque
Median palatal suture correct answers Line of fusion between the palatine processes of the right
and left maxilla; radiolucent; between roots of maxillary incisors
,Incisive foramen correct answers Pear shaped opening in bone located at midline of anterior hard
palate behind central incisors; nasopalatine nerve and vessels exit the maxilla from the foramen;
radiolucent
Mylohyoid ridge correct answers Linear prominence of bone on the internal aspect of the
mandible; mylohyoid muscle attaches to ridge which extends from lower border of mandibular
symphysis; raidopaque
Submandibular fossa correct answers Depression in the bone on the lingual side of the mandible
in which the submandibular salivary glands are located; large radiolucent area below roots of
mandibular molars
Lingual foramen correct answers Small opening located in the midline of internal aspect of
mandible through which a branch of the incisive artery travels; radiolucent dot
Genial tubercles correct answers Small donut shaped ring of tiny spines of bone that surround the
lingual foramen and are located near the midline on the internal aspect of the mandible;
radiopaque
Enamel correct answers calcified layer that covers crown of tooth; radiopaque
Dentin correct answers Mineralized tissue; makes up main body of tooth; extends entire body of
the tooth to protect pulp; radiopaque
dentinoenamel junction correct answers Line of demarcation where enamel and dentin meet;
radiopaque
Cementoenamel junction correct answers Area where the cementum of root meets enamel of
crown of tooth; not usually distinguishable
Alveolar crest correct answers Most coronal portion of the alveolar bone; where the two cortical
bones join between each tooth; linear radiopaque outline of the alveolar ridge can be seen on
radiographs
Pulp correct answers Interior of tooth which contains nerves, blood vessels, and lymphatic tissue;
radiolucent
Periodontal ligament correct answers Connective tissue that supports and suspends the teeth in
their position within the dental arch; the fibers attach to the lamina dura, lining bone of the
alveolus and the cementum of the root; radiolucent
Alveolar bone correct answers Bone that surrounds and supports the tooth in its position in the
jaw; radiopaque
Cementum correct answers Calcified tissue covering the root of the tooth; periodontal ligament
attaches to the cementum to anchor tooth within the socket; not distinguishable on radiographs
, Lamina dura correct answers Bony wall of the tooth socket that surrounds the root; radiopaque
Apical foramen correct answers Opening in the apex of the tooth that provides for access of
nerves, blood vessels, and lymphatics; not distinguishable on radiographs
Apex (apices) correct answers General term for tip of the root of the tooth; usually seen as a
continuation of radiopaque outline of the root
X-ray correct answers A form of electromagnetic radiation used to produce dental images
Ionizing radiation correct answers Process by which electrons are removed from an atom,
resulting in an ion pair; a negatively charged free electron and the remaining part of the atom,
now positively charged; waves contain energy sufficient to overcome the binding energy of
electrons in atoms or molecules, creating ions; includes x-rays and gamma rays; can cause cell
death in high doses over a short period of time and errors in the reproductive process (mutations)
in lower doses over long periods of time
Electrons correct answers Particles with a negative electrical charge that orbit the nucleus of the
atom
Protons correct answers Particles with a positive electrical charge
Neutrons correct answers Particles with no electrical charge that stabilize the atom
Nucleus correct answers The center of the atom, which is composed of protons and neutrons
Electron orbit/shell correct answers Path on which electrons travel around the nucleus
Electrostatic force correct answers Force that maintains electrons in their orbit; also known as
binding energy
Stable atom correct answers has an equal number of protons and electrons
Negative Ion correct answers The electron that leaves the atom is a negative ion
Positive Ion correct answers When an atom loses an electron it becomes positively charged
Ion Pair correct answers Positive and negative ion form an ion pair
Ionization correct answers Conversion of a stable atom into an ion that forms an ion pair
Ionizing radiation (x-ray) correct answers Radiation that is capable of producing ions - when an
energy source strong enough (like an x-ray) hits an atom, that atom loses an electron and
ionization occurs
Zygoma correct answers cheekbone; raidopaque
coronoid process correct answers Bone projecting from anterior of mandible; raidopaque
Zygomatic process of maxilla correct answers A bony prominence that makes up a portion of the
cheekbone; J or U shaped; radiopaque
maxillary tuberosity correct answers A rounded prominence of bone on the alveolar ridge; blood
vessels and nerves for the maxilla enter through this; radiopaque
External oblique ridge/line correct answers Linear prominence of bone on the external aspect of
the mandible; radiopaque
Mental foramen correct answers Two openings in the bone on the external mandible through;
blood vessels and nerves enter and supply to lower lip; small, round, radiolucent
alveolar process correct answers upper aspect of the body of the mandible; radiopaque
alveolar ridge correct answers bony ridge that contains the alveoli (tooth sockets); radiopaque
Mental process or ridge correct answers Linear prominence of bone on the external surface of the
anterior mandible that extends from the premolar region; radiopaque
Nasal septum (vomer bone) correct answers Bone structure that divides the left/right of the nasal
cavity; radiopaque
Nasal fossa (cavity) correct answers Two large depressions of bone located above maxilla and
divided by the nasal septum; radiolucent
anterior nasal spine correct answers a triangular projection from the floor of the nasal fossa,
located at junction of fossa and septum; radiopaque
Lateral fossa/canine fossa correct answers slightly concave area in bone located below and
between the maxillary lateral incisors and maxillary canine; radiolucent
Mental fossa correct answers Depressed area of bone on the external surface of the mandible;
radiolucent
Hamulus/Humular process correct answers Small, hook shaped portion of bone extending from
sphenoid bone down and located behind maxillary tuberosity region; radiopaque
Median palatal suture correct answers Line of fusion between the palatine processes of the right
and left maxilla; radiolucent; between roots of maxillary incisors
,Incisive foramen correct answers Pear shaped opening in bone located at midline of anterior hard
palate behind central incisors; nasopalatine nerve and vessels exit the maxilla from the foramen;
radiolucent
Mylohyoid ridge correct answers Linear prominence of bone on the internal aspect of the
mandible; mylohyoid muscle attaches to ridge which extends from lower border of mandibular
symphysis; raidopaque
Submandibular fossa correct answers Depression in the bone on the lingual side of the mandible
in which the submandibular salivary glands are located; large radiolucent area below roots of
mandibular molars
Lingual foramen correct answers Small opening located in the midline of internal aspect of
mandible through which a branch of the incisive artery travels; radiolucent dot
Genial tubercles correct answers Small donut shaped ring of tiny spines of bone that surround the
lingual foramen and are located near the midline on the internal aspect of the mandible;
radiopaque
Enamel correct answers calcified layer that covers crown of tooth; radiopaque
Dentin correct answers Mineralized tissue; makes up main body of tooth; extends entire body of
the tooth to protect pulp; radiopaque
dentinoenamel junction correct answers Line of demarcation where enamel and dentin meet;
radiopaque
Cementoenamel junction correct answers Area where the cementum of root meets enamel of
crown of tooth; not usually distinguishable
Alveolar crest correct answers Most coronal portion of the alveolar bone; where the two cortical
bones join between each tooth; linear radiopaque outline of the alveolar ridge can be seen on
radiographs
Pulp correct answers Interior of tooth which contains nerves, blood vessels, and lymphatic tissue;
radiolucent
Periodontal ligament correct answers Connective tissue that supports and suspends the teeth in
their position within the dental arch; the fibers attach to the lamina dura, lining bone of the
alveolus and the cementum of the root; radiolucent
Alveolar bone correct answers Bone that surrounds and supports the tooth in its position in the
jaw; radiopaque
Cementum correct answers Calcified tissue covering the root of the tooth; periodontal ligament
attaches to the cementum to anchor tooth within the socket; not distinguishable on radiographs
, Lamina dura correct answers Bony wall of the tooth socket that surrounds the root; radiopaque
Apical foramen correct answers Opening in the apex of the tooth that provides for access of
nerves, blood vessels, and lymphatics; not distinguishable on radiographs
Apex (apices) correct answers General term for tip of the root of the tooth; usually seen as a
continuation of radiopaque outline of the root
X-ray correct answers A form of electromagnetic radiation used to produce dental images
Ionizing radiation correct answers Process by which electrons are removed from an atom,
resulting in an ion pair; a negatively charged free electron and the remaining part of the atom,
now positively charged; waves contain energy sufficient to overcome the binding energy of
electrons in atoms or molecules, creating ions; includes x-rays and gamma rays; can cause cell
death in high doses over a short period of time and errors in the reproductive process (mutations)
in lower doses over long periods of time
Electrons correct answers Particles with a negative electrical charge that orbit the nucleus of the
atom
Protons correct answers Particles with a positive electrical charge
Neutrons correct answers Particles with no electrical charge that stabilize the atom
Nucleus correct answers The center of the atom, which is composed of protons and neutrons
Electron orbit/shell correct answers Path on which electrons travel around the nucleus
Electrostatic force correct answers Force that maintains electrons in their orbit; also known as
binding energy
Stable atom correct answers has an equal number of protons and electrons
Negative Ion correct answers The electron that leaves the atom is a negative ion
Positive Ion correct answers When an atom loses an electron it becomes positively charged
Ion Pair correct answers Positive and negative ion form an ion pair
Ionization correct answers Conversion of a stable atom into an ion that forms an ion pair
Ionizing radiation (x-ray) correct answers Radiation that is capable of producing ions - when an
energy source strong enough (like an x-ray) hits an atom, that atom loses an electron and
ionization occurs
