Hypoplasia Flashcards
What’s the mild form hypoplasia ?
Only few small grooves , pits , fissures on enamel surface
What’s moderate form of hypoplasia ?
Rows of deep pits arranged horizontally across the enamel surface
What’s the severe form of hypoplasia ?
Portion of enamel maybe absent
What’s enamel hypoplasia characteristics ?
■ Normal quality but deficient quantity of enamel
■ Defective enamel matrix formation
■ No contact between teeth
■ Affects both deciduous and succedaneous teeth
■ Hereditary and environmental
form
■ Seen in children with
hypoparathyroidism
What’s enamel hypoplasia colour ?
White , yellow , brown rough or pitted surface
Which antibiotics and common chemicals cause hypoplasia ?
Tetracycline
Fluoride
What’s the difference between heredity and environmental types ?
Hereditary , only enamel affected , occur in multiple tooth
Hypoplasia it’s calcified or protein matrix PROPLEM ?
Protein
Which teeth mostly to be affected ?
Teeth formed during first year .
Centrals , laterals , canines . First permanent molars
Which teeth less affected ?
Premolars , 2+3 molars
Which teeth mostly to get hypoplasia from syphlis ?
Central incisors , first molars
What’s the Hutchinsons teeth , and how does it appear ?
Anterior teeth affected in syphlis
Screw driver shape
Mesial and distal tapering and merging toward the Incisal edge
Notched Incisal edge
Can be also be without syphlis pathogonomic
What’s the mulberry molars ( moon , Fournier’s molars ) ?
Molars affected from syphlis
Irregular crown
Agglomerate mass of globules
What’s is rachitis hypoplasia ?
Vit D defiency
Describe how each vit defoency effect the tooth .
Presentation
What’s the Ca levels when we have tetany hypoplasia ?
6-8mg per 100ml
What’s hypoplasia from traumatic births , premature birth ?
Trauma , reduce enamel formation or ceases
Pre , hypoplasia and Carie’s incidence
Amelobalsts easily damages and they are senitive complete the. Definition
One of a group of cells originating from the ectoderm from which the dental enamel is developed; an enamel cell. The ameloblasts cover the papilla of the enamel organ.
secreting enamel matrix proteins and proteinases, inducing mineral ribbons to form, and organizing them into rod and interrod patterns typical for each vertebrate species.
Whats turners tooth
Single tooth affected
Can be maxillary permanent incisor
Maxillary or mandibular premolar
What’s the color of hypoplasia
Mild form , brown
Severe , pitting and irregularity of tooth surface
What’s the consequence of the disease ?
Caries affect primary tooth with periapical pathoses
Ameloblastic layer distribution
Hypoplastic crown
There is relation between enamel hypoplasia and Carie’s?
NO
But if Carie’s occur progress rapidly
Treatment
Presentation
