Eruption is the axial movement of a tooth from its nonfunctional position in the bone to functional occlusion.
However, eruption is often used to indicate the moment of emergence of the tooth into the oral cavity.
The normal eruption of deciduous and permanent teeth into the oral cavity occurs over a broad chronologic age range. Racial, ethnic, sexual, and individual factors can influence eruption and are usually considered in determining the standards of normal eruption.
True and significant deviations from accepted norms of eruption time are often observed in clinical practice.
Premature eruption has been noted, but delayed tooth eruption (DTE) is the most commonly encountered deviation from normal eruption time.
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A delay in eruption can directly affect the accurate diagnosis, overall treatment planning, and timing of treatment for the orthodontic patient.
Thus, DTE can have a signifi- cant impact on a patient’s proper health care.
The importance of DTE as a clinical problem is well reflected by the number of published reports on the subject, but there is considerable controversy regarding the terminology used and the pathogenesis of DTE.
Lokesh Suri, BDS, DMD, MS / Eleni Gagari, DDS, DMSc / and Heleni Vastardis, DDS, DMSc