Child Dental Health Flashcards
What is the tooth germ composed of? (3)
Enamel Organ- ameloblasts and root sheath
Dental papilla- odontoblasts and pulp
Follicle- cementoblasts, osteoblasts and fibroblasts
What are the causes of hypodontia? (3)
Genetic
Environmental insult
Syndromes- trisomy 21, ectodermal dysplasia, mutations in the MSX1 gene on chromosome 4
What is the result of ectodermal dysplasia? (4)
- thin sparse hair
- absence of sweat glands
- multiple missing teeth
- microdontia
What are the abnormalities of size and form? (5)
- microdontia
- macrodontia
- double teeth
- dens in dente
- talon cusps
What is amelogenesis imperfecta?
A spectrum of hereditary defects in the function of ameloblasts and mineralisation of the enamel matrix
What are the classifications of amelogenesis imperfecta? (2)
Hypoplastic- thin, hard enamel, normal bond strength
Hypomineralised- full thickness enamel, very soft, impaired bond strength
What are the dental defects of amelogenesis imperfecta? (5)
- pulp calcification
- taurodontism
- delayed eruption
- gingival overgrowth
- skeletal anterior open bite
What is the differential diagnosis for amelogenesis imperfecta? (4)
- dental fluorosis
- chronological disorders of tooth formation
- renal disease
- trauma
What are the types of dentinogenesis imperfecta? (3)
Type I- associated with osteogenesis imperfecta
Type II- dentinogenesis imperfecta
Type III- brandywine isolate
What are the features of dentinogenesis imperfecta in the primary dentition? (4)
- amber
- attrition
- pulp obliteration
- spontaneous abscesses
What are the features of dentinogenesis imperfecta in the permanent dentition? (4)
- grey/ translucent
- short roots
- pulp obliteration
- spontaneous abscesses
What are the main clinical problems of dentinogenesis imperfecta? (4)
- poor aesthetics
- chipping and attrition of enamel
- exposure of dentine
- poor oral hygiene, gingivitis and caries
What are the non hereditary disturbances in formation? (4)
- molar incisor hypomineralisation
- dental fluorosis
- turners tooth
- dilaceration of tooth
What is turners tooth?
Affects the successional tooth and is hypo plastic enamel following infection around the interradicular area of primary teeth
What is piagets theory of cognitive development?
Developmental theory of human intelligence where understanding of the world is gained by learning through experiences
What is the definition of erosion?
The loss of tooth tissue due to acid which has not come from plaque
Occurs at pH <5.5
What is the presentation of erosion? (6)
- smooth and shiny
- palatal wear facets
- wear facets on cusps
- yellowing
- rim of enamel becomes visible from palatal aspect
- breaking up of incisal edge
What is the presentation of attrition? (4)
- flattened cusps
- enlarged masseter
- sometimes facial pain
- family member complaining of grinding noise at night
Why is crown preparation contraindicated in under 16 years? (4)
- large pulp/crown ratio and wide dentinal tubules may increase risk of pulpal stress or exposure
- changing gingival contour due to active and passive eruption of teeth
- cooperation may be limited
- advantageous to delay start of restorative cycle
What are the factors of asthma which produce airway obstruction? (3)
- airway smooth muscle spasm
- alteration in respiratory secretion, with mucous plugging of smaller airways
- inflammation
What is the dental care of the child with asthma? (4)
- dental things that may exacerbate e.g fluoride varnish
- recommended rinsing mouth out after inhaler use
- may be at risk of adrenal crisis
- inhalation sedation is safe for midl to moderate asthma
What is epilepsy impact on dental care? (5)
- triggers could be light drill section
- need to be able to manage an acute seizure in the dental surgery
- increased risk of tongue biting and trauma to incisors
- potential for gingival enlargement due to phenytoin
- dentures may be contraindicated in severe epileptics
What are the oral health implications for the child with diabetes? (3)
- may be decreased saliva flow
- caries risk from frequent sugar intake
- increased periodontal disease
What is cerebral palsy?
Non progressive neuromuscular disorder caused by brain damage during the pre, peri or post natal period
What are the oral health implications for children with cerebral palsy? (4)
- poor oral hygiene due to poor manual dexterity
- periodontal disease
- malocclusion
- tendency to bruxism
What is the dental care of the child with cerebral palsy? (3)
- access to dental surgery and transfer to chair from wheelchair
- gag reflex may make it difficult for patients to tolerate intraoral instruments
- may be possible to coordinate GA for medical procedures with dental care in some circumstances
What is von willibrands due to?
Deficient or abnormal plasma protein, platelet function or von willebrand factor
What are the types of anaemias? (3)
- deficiency anaemia
- sickle cell anaemia
- thalassaemia
What are the long term complications as a consequence of cancer treatment? (4)
- reduced salivary flow
- hypodontia
- enamel discolouration
- supernumerary teeth
What are the causes of autism? (4)
- advanced paternal age
- certain drugs in pregnant mothers
- some infectious agents
- genes
What is ADHD?
Attention deficit hyperactivity disorder
What is a sinus?
A tract or fistula leading to a cavity which may be filled with pus
What is a fistula?
An abnormal connection between 2 epitheliased surfaces
What is a haemangioma?
Malformation of blood vessels, cavernous and capillary variants
What is an eruption cyst?
Enlargements of dental follicle that appear before eruption, rarely requiring treatment