A temporary tooth or tooth baby or tooth lactéale is a Dent appearing at the Enfant, which will remain in mouth a few years before falling to leave the place to a permanent Dent.

The origin of this milk name “” is ignored enough. Several assumptions were advanced: maybe because present during the breast feeding of the child; maybe because whiter than the final teeth.

Description at the man

In all there are 20 baby teeth:

As soon as there are teeth, they should be cleaned. One can use a small brush with tooth, with a quantity of Dentifrice adapted, and a proportioning in Fluor adapté.
It is also important to make well follow his child by a Dentiste as of the appearance of the first teeth. So of many care are necessary, it can be preferable to address to a Pédodontiste (dentist specialized in the Pédodontie: the care with the children).

Chronology

The beginning of calcification (beginning of the formation) is done with 5th or 6th month in utero (in the belly of the mom) for all the baby teeth.
The first tooth appears in mouth about the sixth month; but it can be present as of the birth. But sometimes such a tooth present at the birth is in fact an additional tooth, which will fall rapidement.
The first loss of tooth occurs around 6 years.

  • central Incisors: eruption in 6-10 month/falls to 6-8 years

  • side Incisives: eruption in 8-12 month/falls to 7-9 years
  • Canines: eruption in 16-20 month/falls to 9-12 years
  • First molar: eruption in 12-16 month/falls to 9-11 years
  • Second molar: eruption in 20-30 month/falls to 10-12 years

Specificities

The temporary teeth present differences compared to the permanent teeth.

Anatomy

  • Crown: clearer color; more pointed cusps, more globulous teeth, cervical contracting (collet) less marked.
  • Roots: finer and more divergent, to leave the place to the subjacent Germ of the permanent tooth.
  • Email: thinner, less mineral-bearing, less translucent.
  • Dentine : larger and more tubuli. This supports a fast progression of the decays.
  • Pulp: very bulky pulpar room; easy communication pulpo-parodontale allow a fast attack of furcation; the infectious communication is favoured

Physiology

  • Stage of formation = immaturity
The baby teeth have a large repairing potential. The dentinogenèse (synthesis of dentine) is done very easily. Duration: 1 year.
  • Stage of maturity
Stable period, between the end of the construction of the roots and the beginning of the resorption. Duration: 3 years 9 months.
  • Stage of resorption = rhyzalyse
The rhyzalyse means the destruction of the roots. Pulp loses its repairing potential; the number of cells falls; it fibrosis. There is an increase in the infectious risk. The sensory nerves disappear. The roots are progressively nibbled evolution of the subjacent tooth. Duration: 3 years 6 months.

Modifications at the time of the rhyzalyse: migration of the epithelial fastener; cement attacked by odontoclastes; widening of the apex; progressive invasion of pulp by inflammatory cells and odontomères (the odontoblastes become rare); fibrosis of the parenchyma; vascular disorganization; elimination of sensitive and vegetative fibers. The capacities of defense and reaction decrease.

The fall of these teeth is supported by the phenomenon of rhyzalyse.

In the event of Sterility of the permanent tooth, the rhyzalyse is not done. A temporary tooth can thus remain many years in place.

Pathologies

  • the decays can evolve/move very quickly.
  • the Pulpite S are fewer and less long. They can occur without pain, much more often than in the adult.
  • On the other hand the dental abscess of origin occur more easily in the child than at the adulte.

  • Syndrome of the septum: in the children, the pain is often caused more by the gum than by the decay. The syndrome of the septum is a sharp pain, occurring during the meal, due to a food stuffing. The decay proximale (between two teeth) is responsible indirectly for this pain.

  • Syndrome of the feeding-bottle: one calls syndrome of the feeding-bottle of the multiple decays occurring in the young child (as of 2 years), in particular on the vestibular faces of the former teeth. These decays are supported by: a prolonged breast feeding; the permanent presence or with sleeping of a feeding-bottle containing a sweetened liquid; a limited oral hygiene.

Treatments

Care

The treatments of preserving Odontologie are identical to those of the permanent tooth.
The materials of obturation can differ.
  • Amalgam: easy to handle in the children, who have evil to keep the open mouth.
  • Composite S: difficult use in the children because of the duration of intervention necessary.
  • Cement Glass ionomère: often used on the temporary teeth. Resistance and durability are too low for permanent teeth, but sufficient for the temporary teeth. And handling is more tolerant than for the composites.

Endodontics

On the other hand the endodontical treatments differ. Indeed one will not make a canal obturation in the roots; that would be likely to block the rhyzalyse. One thus does not make a Pulpectomie (complete abolition of pulp), but a Pulpotomie (elimination of fiscal pulp), by leaving radicular pulp.
In the event of necroses, the pulpectomy becomes necessary. In this case one seals the channels only with canal cement (which can be reabsorbed), without gutta-perched.

Prosthesis

Concerning the prosthesis, if a tooth is very damaged one can pose a kind of preformed crown, called pedodontic cap.
One can also make removable resin small apparatuses if several teeth were extracted early before their normal date from fall. The goal is double: esthetics if they are former teeth; maintenor of space if they are posterior teeth. Indeed when a tooth is removed, the adjacent teeth are likely to migrate in direction of vacant left space. The final teeth are then likely not to have the place more to make their eruption.

See too

External bonds

  • Decay of the feeding-bottle
  • Sealing dental

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