Oral Pathology Flashcards
Primary & permanent teeth absence
Complete true anodontia
most posterior missing tooth, congenitally missing teeth.
Partial Anodontia
Absence of teeth more than 6
Oligodontia
Only few teeth are absent or less than 6
Hypodontia
disease that has defect in Lamin A
Progeria Syndrome
most common supernumerary tooth (hyperdontia)
Mesiodens
Paramolar - Faciolingual location of maxillary posteriors
Distomolars - 4th molars (Distally in 3rd molar)
disease that has an absence or hypoplasia of clavicle, impacted supernumerary teeth.
Cleidocranial Dysplasia
Portwine stain along the distribution of CN V
Sturge-weber syndrome / “Encephalotrigeminal angiomatosis”
most common microdontia tooth
Max. 3rd molar
- heart shaped occlusal
- no distolingual cusp
Trigone or the Primary cusp triangle are:
Mesiolingual Cusp
Mesiobuccal Cusp
Distobuccal Cusp
- no DistoLingual cusp
Mandibular 3rd molar can be larger than normal called?
Macrodontia
Joining of 2 developing tooth germs
Fusion
Attempt to make 2 teeth from single enamel organ
Gemination
Complete separation of 1 tooth bud
Twinning
Fusion in the cementum area
Concrescence
thickest part of cementum
Apical 3rd
thinnest part of cementum
cervical 3rd
Dilaceration a curving or angulation of tooth roots is caused by
Trauma of tooth during development
Dilaceration is most common in
Max. Pre molars
Dens invaginatus / tooth-within-a-tooth is also called
Dens-In-Dente
- most common in max. lateral incisor
Dens evaginatus a anomalous tubercle/cusp located in the center of the occlusal surface, it is also called
Leong’s Premolar
Elongated crowns or apically displaced furcations resulting in pulp chambers with increased apico-occlusal height
Taurodontism “bulls teeth”
Enamel pearl is an extra enamel formation located at the
Bifurcation
Enamel pearl is a high risk for
Perio pocket
Extra cusp usually in lingual of anterior teeth, most common in max. lateral incisor
Talon’s cusp
Extra cusp on buccal surface of molars
Doak’s Cusp
Cusp of carabelli is located at
MesioLingual Cusp
optimum level of fluoride
0.7-1.2ppm
> = Fluorosis
mottled enamel
location of Endemic fluorosis in the Philippines
Agno, Pangasinan
Bacoor, cavite
High fluoride content
Fish (salmon…) , Tea, Cabbage
Tea that has high fluoride content
Tsaang Gubat
Syphilis is caused by
Treponema Pallidum
DOC for syphilis
Penicillin
Microscope used for syphilis
Darkfield microscope
Tetracycline is contraindicated px who is pregnant for
6 months - 8-9yr old child
hypoplastic or hypocalcified permanent tooth enamel or caused by abscessed primary tooth or trauma by primary tooth is called
Turner’s teeth
management of the Primary tooth when it is intruded
Observe
management of Intruded primary tooth affecting the permanent tooth bud
Extraction
Amelogenesis imperfecta is a defect of?
Mesoderm or Ectoderm?
Ectoderm
Dentinogenesis Imperfecta is a defect of?
Mesoderm or Ectoderm?
Mesoderm
Hard but thin -> pin-point pits.
Normal quality, Poor quantity
Hypoplasia/Hypoplastic Amelogenesis Imperfecta
Soft, brittle -> removed by prophylaxis
Normal Quantity, poor quality
Associated by rubella/german measles
Hypocalcification AI
most common classification of dentinogenesis imperfecta with no bone involvement
Type 2 (Shield’s classification)
Type 1 (Revised shield’s classification)
Obliterates the pulp chamber
Dentinogenesis Imperfecta
abnormal root dentin most common type that is rootless.
Radicular Dentinal Dysplasia (type 1)
Type 2 Coronal = Thistle tube appearance
Short lingual frenum, attachment near the tongue tip
Ankyloglossia
a surgical procedure used to treat tongue tie / lingual frenum.
Frenotomy / ankylotomy
surgical procedure removal of labial frenum
Frenectomy
“scrotal tongue” fissure are site of plaque growth
Fissured tongue
papilla of tongue, most commonly affected. most abundant, high metabolic activity but no taste buds.
FILIFORM PAPILLAE
Starts the tongue development
Tuberculum Impar
Tongue development starts at
4th week
Dekeratinization and desquamation of filiform papilla changes in location from 1 to another appears red and slightly tender
Geographic tongue “Benign migratory glossitis/ Wandering rash”
DOC for grand mal seizure
Phenytoin / Dilantin “Diphenylhydantoin”
Most common type of seizure
Grand mal seizure
Tx for gingival hyperplasia
Gingivectomy
Drugs that causes gingival hyperplasia
Phenytoin
Nifedipine (anti-hypersensitive)
Cyclosporine (immunosuppressant)
anomalies in buccal mucosa, ectopic sebaceous glands, yellow in color, common in teenagers.
Fordyce granules/Spots
“Pink tooth of mummery”
Resorption of dentin at pulpal walls, Root canal defect is called?
What is the treatment?
What cells are present?
Internal Resorption
RCT
Odontoclast
Periodontal defect, resorption of external surface of root.
External Resorption
loss of tooth structure from non-bacterial chemical process
EROSION
Loss of tooth structure @cervical area caused by tensile & compressive forces during tooth flexure
ABFRACTION
thinnest part of enamel
Cervical area
Pathologic wearing of tooth
ex. excessive toothbrushing
Abrasion
Physiologic wearing of tooth
tooth to tooth contact
Attrition
Thickest part of enamel
Incisal or occlusal 3rd
most common site of torus
Palate / “Torus palatinus”
Torus lingual surface of mandible
Torus Mandibularis
multiple/single bony excresences
Exostoses
TX for torus
Double Y-Flap
Red, raspberry like, hyperplastic granulation tissue, bleeds easily, common in female and located at interdental papilla
Pyogenic Granuloma
tx: Excision
“Pyo” = Pus
but no pus in pyogenic granuloma
Pregnant: “Epulis Gravidarum”
Denture should be replaced every
5-7 years
Painless fold of hyperplastic tissue
due to ill-fitting denture
commonly in the mandibular mucobuccal fold
Inflammatory fibrous hyperplasia / Flabby / Epulis fissurantum
Papillary projection appearing as cobblestone/granular
due to ill-fitting denture
commonly hard palate
caused by Candida
Palatal Papillary Hyperplasia
“Papillomatosis”
White lesion can be rubbed/scraped off
Candidiasis
White lesion that cannot be rubbed off
Leukoplakia
-needs biopsy