space maintainer
Dental Procedures
estimated about CNY 800-2500
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Description
A dental appliance used to preserve the space left by a prematurely lost primary tooth, preventing adjacent teeth from drifting and ensuring proper eruption of the permanent successor.
Main Uses
Prevents space loss and malocclusion following premature extraction or early exfoliation of primary molars or incisors; maintains arch perimeter for proper eruption of permanent successors; prevents tipping of adjacent teeth, rotation, over-eruption of opposing teeth, and crowding; indicated in cases of caries-related extractions, trauma, hypodontia, or severe root resorption before natural exfoliation.
Normal Range
Not applicable — 'Primary tooth premature loss space maintainer' is not a laboratory test or quantitative medical assay; it is a custom-fabricated dental appliance (e.g., band-and-loop, lingual arch, or removable appliance) used to preserve arch length after early loss of primary teeth. There are no numerical values, reference ranges, or measurable biomarkers associated with this intervention.
Low Values - Possible Causes
N/A — This is not a diagnostic test with quantifiable results; therefore, 'low values' do not exist. Clinical concerns arise from *inadequate use*, *poor fit*, *non-compliance*, or *failure to place* a space maintainer when indicated — not from low numerical readings.
High Values - Possible Causes
N/A — No 'high values' exist, as this is a clinical preventive procedure, not a biochemical or imaging measurement. 'Overuse' may refer to inappropriate placement (e.g., in cases with sufficient leeway space or imminent eruption of permanent successors), but this is a clinical judgment error, not a high-value result.
estimated about CNY 800-2500