Reverse Test 1 Flashcards
Failure of processes to merge. Prevelance: Native American, Asian, White, Black. Lateral: Maxillary and Mandibular. Oblique: Lateral nasal process and Maxillary. Cleft Lip: Maxillary and medial nasal. Median Cleft: Two medial nasal processes. CP= failure of palatal shelves to fuse (bifid uvula is minimum manifestation) if syndromic its CP only, if nonsyndomic (more common) its CP and CL. Submucosal cleft= palate shelves get close enough that the mucosa cover it but bones aren’t fused.
Cleft Lip and Palate (cause, prevalence):
CP, Mandibular Micrognathia, glossoptosis
Peirre Robin Sequence
Corners of the mouth, on vermillion border
Commissural lip pits
Symmetrical just off center pits on the lower lip. Van der woude
Paramedian lip pits
Double lip, blepharochalasis, nontoxic thyroid enlargement
Ascher syndrome
ectopic sebaceous glands. Raised yellow papules
Fordyce granules
White appearance on buccal mucosa, disappears when stretched and comes back when released
Leukoedema
big tongue, beckwidth-weiddermans syndrome. Caused by 1) muscular hypertrophy 2) vascular malformations 3) other (lymphangioma, downs syndrome ect)
Macroglossia
big thyroid in back of throat. Between foramen cecum and epiglottis. Has difficulty swallowing (dysphagia) talking (dysphonia) breathing (dyspnea). Dx by iodine/technetium-99/ct/mri
Lingual Thyroid
PMN swelling on tongue. White/yellow serpentine lines that move around. Erythema migrans when not on tongue
Geographic tongue:
AKA scrotal tongue. Deep fissured tongue. Pts complain of bad breath, burning, and bad taste
Fissured tongue
Overgrowth of coronoid. Deviates to ipsilateral side. Typically only during open
Coronoid hyperplasia
Overgrowth of the condylar process. Deviates to contralateral side. Even at rest
Condylar hyperplasia
Saliva gland gets in mandible formation, radiopacity below the mandibular canal “lingual mandibular salivary gland depression” submandibular gland (mostly serous with some mucins)
Stafne defect
pathologic cavity lined by epithelium. Typically fluid filled and continue to grow bc of hydrostatic pressure
Cyst
radiolucency in the anterior maxilla. Commonly is radicular cyst or periapical granuloma. Usually in the lateral incisor area.
Globulomaxillary radiolucencies
incisive canal cyst” cyst below the incisive papilla. Duct should be less than 6 mm wide.
Nasopalatine duct cyst
has dermis structures in the lining (hair, and sebaceous glands)
Dermoid cyst
FOM (most common), ventral tongue, soft palate. waldeyers ring (palatine tonsils, lingual tonsils, pharyngeal adenoids) White/yellow asymptomatic mass less than 1 cm. has lymph tissue in it.
Lymphoepithelial cyst
atrophy on one side of the face. Possible hx of trauma. Lyme disease can be a big cause. Look at tongue
Progressive hemifacial atrophy
downward slant of lateral palpebral fissures. Mouth is trapezoid shape. 75% have cleft soft palates or bifid uvula. Syndactyly (malformation of limbs)
Apert syndrome
defects of 1 and 2 branchial arches. Coloboma (notch on outer portion of eyelid) hypoplastyic zygomatic arch. micrognathia
Mandibulofacial dysostosis/treacher-collins syndrome
periapical inflammation of the primary tooth
Turner’s hyperplasia/turner’s tooth
hutchisons incisors, mulberry molar, interstitial keratitis (blindness), 8 nerve deafness
Congenital syphilis
Attrition: tooth on tooth, Abrasion: tooth on not tooth. Erosion: chemical (perimolysis is erosion caused by gastric secretions)Abfraction: loading causes cervical notches
Post developmental loss of tooth structure (attrition, abrasion, erosion, abfraction):
one or more missing teeth. anodontia: no teeth oligodontia: six or more missing teeth. If missing a primary tooth you will most likely miss permanent tooth
Hypodontia
more than normal teeth. Mesiodens= extra tooth between centrals.
Hyperdontia
Count teeth and normal number but one is big and enarged
Gemination
Two teeth have fused together
Fusion
tooth fusion on the cementum. Extractions are hard, need to do both
Concrescence
curved root
Dilaceration
): tooth inside a tooth. Deep invagination of a tooth that is lined by enamel. Most common is maxillary lateral incisors. radiograph don’t be confused with pulp champber
Dens-ino-dente (dens ivaginatus
most common is mandibular premolar: tooth on a tooth
Dens evaginatus
lowered pulp chambers. Look like mermaid fins 1) klinefelters 2) tricho-dento-osseus 3) amelogenesis imperfecta
Taurodontism
radiographically- sharp pointy teeth with thin enamel
Amelogenesis imperfecta
inadequate deposition of enamel. Pocketed enamel
hypoplastic
laid down properly but doesn’t mature: snow capped
hypomaturation
doesn’t mineralize properly. Brown and yellow. Flakes off easily
hypocalcified
mutation of DSPP. Blue tinted teeth. No pulp in radiograph, bulbous crowns and thin roots
Dentinogenesis imperfecta
rootless teeth
Dentin dysplasia (type I
hotdog on a stick pulp and blue tint
dentin dysplasia type II
non hereditary. Ghost teeth. Shell of teeth
Regional odontodysplasia
sinus tract (intraoral and cutaneous). 2) osteomyelitis (infection of bone. Causes sequestra) 3) cellulitis (infection of soft tissue) 4) condensing osteitis (localized area of bone sclerosis. RO area by roots)
Sequelae of periapical pathology
Radiolucent area by root tip. On histo filled with granulation tissue ( lymphocytes, plasma cells-purple and blue with pink)
Periapical granuloma
RL filled with pus (PMN all pink)
Periapical abcess
has epithelium around it (“spider web” looking thing)
Periapical cyst
expanding lytic destruction, suppuration, sequestra formation, invulcrum (necrotic bone surrounded by healthy bone)
Osteomyelitis
cellulitis in the neck (mandibular tooth [molar])
Ludwig’s angina
cellulitis in the upper face (maxillary tooth [molar])
Cavernous sinus thrombosis
bright red, hypersensitivity reaction (big red gum causes this- cinnamaaldehyde)
Plasma cell gingivitis
fiery red, bleeds easily, epithelial cells spread apart
Localized juvenile spongiotic gingival hyperplasia:
red, raw nasty looking, can pull gums apart with minor force. Ddx: lichen planus, mucous membrane pemphigoid, pemphigoid vulgaris, systemic lupus erythemous, hypersensitivity
Desquamative gingivitis
cyclosporine (25%), phenytoin (highest percentage 50%), nifedipine (25%)
Drug-related gingival hyperplasia
tissue covers a tooth- operculum
Pericornitis
cathepsin c gene, accelerated periodontitis, A.A., palmar plantar keratosis
Papillon-Lefevre syndrome
honey colored crusts. Strep pyogenes or staph aureus
Impetigo
disseminated group A beta hemolytic strep. 2 days of white strawberry tongue then red strawberry tongue desquamation in 3-8 weeks. Pastias lines: rash in areas where pressure and skin folds are
Scarlet Fever
cornebacterium , humans are sole resevoirs
diptheria
treponema pallidum. Primary: painless chancre. Secondary: painless lymphadenopathy, rash tertiary: latent
Syphilis
neisseria
Gonorrhea
mycobacterium, acid fast, aerosol dispersed. Lupus vulgaris (TB of skin) scrofula (tb from contaminated cows milk)
Tuberculosis
isreali: sulfer granules. Mandible. Can occur in tonsillar crypts, plaque, and carious dentin.
Actinomycosis
bartonella henselae. Self resolves in four months
Cat-scratch disease
thrush
Psuedomembranosis candidia
bald pink symmetrical circle on posterior dorsal tongue
Median rhomboid glossitis
median rhomboid glossitis and infection elsewhere (angle of mandible)
Chronic multifocal candidiasis
red rash on corners of mout. Candidiasis and staph aureus
Angular chelitis
infection under a denture- maxillary
Denture stomatitis
antibiotic sore mouth
Acute atrophic candiasis
candida leukoplakia- white that won’t come off. Anterior buccal mucosa
Chronic hyperplastic
APECED. Endocrine
Mucocutaneous candida
most common in US. capsulatum, ohio and Mississippi river valley. Bird and bat excrement. Mobile and spongey
Histoplasmosis
dermatitidis. Us and Canada. Breathe ins pores after rain. Can introduce a psuedoepitheliomatous hyperplasia (benign reaction in epithelium that looks like cancer)
Blastomycosis
brasiliensis: armadillo. Mickey mouse or mariners wheel organisms
Paracoccidioidomycosis
immitis. San joaquin river valley fever- SW and mexico. Bag of marbles on histo slide. Flu like symptoms. Arthrospores from mold
Coccidioidomycosis
neoformans: pigeon excrement. Mucopolysacharide capsule that protects it
Cryptococcosis
mucormycosis: enhanced by iron. Rhinocerebral form is what dentists worry about. Diabetes at risk nasal infection, facial pain, visual disturbances. Black necrotic tissue in middle of face
Zygomycosis
second in frequeny to candidiasis. Antrolith if calcified. A. fumigatus and a. flavus. Surgically debride
Aspergillosis