OSCE DENTAL HYGIENE EXAMS ALL QUESTIONS
AND ANSWERS SURE A+
✔✔Severe bone loss - ✔✔Loss of over 50% of normal supporting bone.
✔✔Widening of PDL - ✔✔Can be caused by periodontal disease or trauma.
✔✔Hypercementosis - ✔✔Root deposited more cementum to compensate for trauma.
✔✔External resorption - ✔✔Root surface can be lost with trauma such as orthodontic
therapy.
✔✔Root fracture - ✔✔Horizontal or vertical crack.
✔✔Periapical abscess - ✔✔Radiolucent area located at the end of a symptomatic tooth
with infected pulp.
✔✔Periapical granuloma - ✔✔Radiolucent area at the apex of a non-vital, usually
asymptomatic tooth.
✔✔Periodontal abscess - ✔✔Radiolucent area located at the end or lateral part of the
root.
,✔✔Ankylosis - ✔✔Tooth is fused with adjacent bone which prevents the tooth from
erupting fully.
✔✔Concrescence - ✔✔Two adjacent teeth are united by cementum only.
✔✔Dilaceration - ✔✔Distortion of root.
✔✔Supernumerary tooth - ✔✔Usually found between the maxillary central incisors
(mesiodens) and behind the third molars.
✔✔Enamel Pearl - ✔✔Round, radiopaque calcifications most commonly seen in
furcations of multi-rooted teeth.
✔✔Cementicle - ✔✔Round, radiopaque calcifications on the root surface within the PDL
space.
✔✔Condensing osteitis - ✔✔Radiopaque area attached to apex of a nonvital tooth with
a low-grade infection.
✔✔Dens in dente - ✔✔Surface of the tooth folds inwards to create a 'tooth within a
tooth.'
✔✔Mandibular tori - ✔✔Benign bony growth on the lingual surface of the mandible.
✔✔Overhang - ✔✔Over contouring of dental material beyond the cavity margin.
✔✔Fluorosis - ✔✔Caused by excessive fluoride.
✔✔Tetracycline stain - ✔✔Caused by the ingestion of the antibiotic tetracycline by
pregnant or lactating mothers.
✔✔Minocycline - ✔✔A tetracycline derivative that can cause bluish-gray stain.
✔✔Pulp necrosis - ✔✔Creates teeth that are dark.
✔✔Pulpitis - ✔✔Creates pink discoloration caused by inflammation and internal
bleeding in the pulp chamber.
✔✔Extrinsic stain - ✔✔Occurred after tooth eruption, the stain is on the outside of the
tooth.
✔✔Yellow stain - ✔✔Caused by plaque buildup.
, ✔✔Green Stain - ✔✔Caused by poor oral hygiene or Nasmyth's membrane (thin tissue
on newly erupted teeth which will brush off).
✔✔Black stain - ✔✔Caused by iron compounds embedded in dental biofilm. -Found in
clean mouths.
✔✔Brown to black stain - ✔✔Caused by tobacco use.
✔✔Orange stain - ✔✔Associated with chromogenic bacteria.
✔✔Tan to dark brown - ✔✔Caused by food such as wine, tea, or coffee.
✔✔Yellow, brown, or gray stain - ✔✔Caused by chlorhexidine.
✔✔Gray-green stain - ✔✔Caused by marijuana.
✔✔Amelogenesis imperfecta - ✔✔May show pitting (mottled appearance), smoothness,
or roughness. -May appear yellow and is soft in texture, leading to the exposure of
dentin.
✔✔Dentinogenesis imperfecta - ✔✔Affected teeth appear opalescent and
brownish/blue in color. -Primary teeth are usually affected more severely than
permanent teeth. -Radiographically, no pulp chambers or root canals are seen.
✔✔Anodontia - ✔✔Congenital lack of ALL primary or permanent teeth.
✔✔Hypodontia - ✔✔Lack of one or more teeth in the primary or permanent dentition.
✔✔Supernumerary teeth - ✔✔Extra teeth found in the dental arches. -Teeth are smaller
than normal and often do not erupt. -Most common supernumerary teeth is the
mesiodens, located between the maxillary central incisors.
✔✔Microdontia - ✔✔One or more teeth in the dentition are smaller than normal. -The
maxillary lateral incisor, called peg lateral, and the maxillary third molars are the teeth
most often affected.
✔✔Macrodontia - ✔✔One or more teeth in a dentition are larger than normal.
✔✔Facial hemihypertrophy - ✔✔Localized macrodontia affecting one side of the dental
arch.
✔✔Germination - ✔✔A single tooth germ attempts to divide and results in the
incomplete formation of two teeth. (Town crowns, one root)
AND ANSWERS SURE A+
✔✔Severe bone loss - ✔✔Loss of over 50% of normal supporting bone.
✔✔Widening of PDL - ✔✔Can be caused by periodontal disease or trauma.
✔✔Hypercementosis - ✔✔Root deposited more cementum to compensate for trauma.
✔✔External resorption - ✔✔Root surface can be lost with trauma such as orthodontic
therapy.
✔✔Root fracture - ✔✔Horizontal or vertical crack.
✔✔Periapical abscess - ✔✔Radiolucent area located at the end of a symptomatic tooth
with infected pulp.
✔✔Periapical granuloma - ✔✔Radiolucent area at the apex of a non-vital, usually
asymptomatic tooth.
✔✔Periodontal abscess - ✔✔Radiolucent area located at the end or lateral part of the
root.
,✔✔Ankylosis - ✔✔Tooth is fused with adjacent bone which prevents the tooth from
erupting fully.
✔✔Concrescence - ✔✔Two adjacent teeth are united by cementum only.
✔✔Dilaceration - ✔✔Distortion of root.
✔✔Supernumerary tooth - ✔✔Usually found between the maxillary central incisors
(mesiodens) and behind the third molars.
✔✔Enamel Pearl - ✔✔Round, radiopaque calcifications most commonly seen in
furcations of multi-rooted teeth.
✔✔Cementicle - ✔✔Round, radiopaque calcifications on the root surface within the PDL
space.
✔✔Condensing osteitis - ✔✔Radiopaque area attached to apex of a nonvital tooth with
a low-grade infection.
✔✔Dens in dente - ✔✔Surface of the tooth folds inwards to create a 'tooth within a
tooth.'
✔✔Mandibular tori - ✔✔Benign bony growth on the lingual surface of the mandible.
✔✔Overhang - ✔✔Over contouring of dental material beyond the cavity margin.
✔✔Fluorosis - ✔✔Caused by excessive fluoride.
✔✔Tetracycline stain - ✔✔Caused by the ingestion of the antibiotic tetracycline by
pregnant or lactating mothers.
✔✔Minocycline - ✔✔A tetracycline derivative that can cause bluish-gray stain.
✔✔Pulp necrosis - ✔✔Creates teeth that are dark.
✔✔Pulpitis - ✔✔Creates pink discoloration caused by inflammation and internal
bleeding in the pulp chamber.
✔✔Extrinsic stain - ✔✔Occurred after tooth eruption, the stain is on the outside of the
tooth.
✔✔Yellow stain - ✔✔Caused by plaque buildup.
, ✔✔Green Stain - ✔✔Caused by poor oral hygiene or Nasmyth's membrane (thin tissue
on newly erupted teeth which will brush off).
✔✔Black stain - ✔✔Caused by iron compounds embedded in dental biofilm. -Found in
clean mouths.
✔✔Brown to black stain - ✔✔Caused by tobacco use.
✔✔Orange stain - ✔✔Associated with chromogenic bacteria.
✔✔Tan to dark brown - ✔✔Caused by food such as wine, tea, or coffee.
✔✔Yellow, brown, or gray stain - ✔✔Caused by chlorhexidine.
✔✔Gray-green stain - ✔✔Caused by marijuana.
✔✔Amelogenesis imperfecta - ✔✔May show pitting (mottled appearance), smoothness,
or roughness. -May appear yellow and is soft in texture, leading to the exposure of
dentin.
✔✔Dentinogenesis imperfecta - ✔✔Affected teeth appear opalescent and
brownish/blue in color. -Primary teeth are usually affected more severely than
permanent teeth. -Radiographically, no pulp chambers or root canals are seen.
✔✔Anodontia - ✔✔Congenital lack of ALL primary or permanent teeth.
✔✔Hypodontia - ✔✔Lack of one or more teeth in the primary or permanent dentition.
✔✔Supernumerary teeth - ✔✔Extra teeth found in the dental arches. -Teeth are smaller
than normal and often do not erupt. -Most common supernumerary teeth is the
mesiodens, located between the maxillary central incisors.
✔✔Microdontia - ✔✔One or more teeth in the dentition are smaller than normal. -The
maxillary lateral incisor, called peg lateral, and the maxillary third molars are the teeth
most often affected.
✔✔Macrodontia - ✔✔One or more teeth in a dentition are larger than normal.
✔✔Facial hemihypertrophy - ✔✔Localized macrodontia affecting one side of the dental
arch.
✔✔Germination - ✔✔A single tooth germ attempts to divide and results in the
incomplete formation of two teeth. (Town crowns, one root)
