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SPACE MAINTAINERS

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  • 06/05/2012 at 2:51 pm #10492
    Drsumitra
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    They are the space maintainers that can be removed and reinserted into the oral cavity by the patient.

    CONDITIONS WHERE THESE CAN BE USED
    Bilateral loss of posterior teeth in the mandibular arch before eruption of tooth.

    Missing anterior teeth where it is made functional.

    Cases where patient cooperation is not a major criteria.
    When space maintainer is required for a short period of time.
    CASES WHERE SUCH SPACERS CANNOT BE USED

    Uncooperative patients
    Patients allergic to acrylic
    Epileptic patients
    FIXED SPACE MAINTAINERS
    Are the space maintainers that are designed to be cemented on to the tooth and thus cannot be removed by the patient.
    ADVANTAGES
    Patient cooperation is not required
    Jaw growth is not hampered
    Succedaneous teeth are free to erupt, depending on the design.
    Masticatory function is restored if pontics are placed
    DISADVANTAGES
    Elaborate instrumentation is required.
    Increased risk of caries
    Some designs interfere with eruption of successor, as with band and bar space maintainer.
    TYPES OF SPACE MAINTAINERS
    Band and loop space maintainer

    Lingual arch space maintainer Distal shoe space maintainer

    Dangerous space maintainers

    They are removable unilateral space maintainers. we believe removable unilateral space maintainer should not be used. They are too small and present swallowing and choking danger for children.

    REQUIREMENTS
    Should maintain the desired dimensions of the space created by the loss of tooth.
    Should not interfere with eruption of occluding teeth.
    Should not interfere with eruption of the replacing permanent teeth.
    Should not interfere with speech, mastication or functional movement of mandible
    Should be simple and strong
    Easily cleansable
    Should not restrict normal growth and function.

     

            

    06/05/2012 at 2:52 pm #15449
    Drsumitra
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    06/05/2012 at 3:08 pm #15450
    drmithila
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    Space maintainers are the devices used to maintain or regain the space following the loss of deciduous toothteeth.

    When space maintainer is needed ?

    When there is premature loss of the milk tooth e.g. the lower second molar which should ideally be lost at nine to ten years of age , but beause of decay the child loose it at the age of five years , then that child needs the space maintainer to maintain the space till the permanent tooth is ready to come in that space.

    Premature loss of 2nd molar space maintainer is indicated

    AFTER HOW MUCH TIME OF EXTRACTION SHOULD IT BE GIVEN ?
    Maximum space closure occurs within the first 6 months after extraction. therefore it is best to insert an appliance as soon as possible after extraction

    When the space maintainers should not be given?
    When there is no alveolar bone overlying the crown of erupting tooth and there is sufficient space for its eruption.
    When space left is excess of the mesiodistal dimensions requiredfor the eruption.When permanent succeeding tooth is congenitally absent and space closure is desired.

     

     

            

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