There was positive family history of delayed eruption
of permanent teeth of the elder sister of our patient.
(5) Here, we present a case report of a supernumerary tooth in the anterior maxillary region--an impacted inverted mesiodens causing delayed eruption
of permanent maxillary central incisors.
No history of exfoliation of teeth but history of delayed eruption
According to Seow , a delayed eruption
may occur in some patients, but it may be originated by local factors, such as a premature loss of the primary teeth.
There is acceleration in eruption when primary tooth extracted at time near its exfoliation time be- cause this removes some of the tissues covering the successor tooth, but it causes delayed eruption
when primary tooth extracted early because the tissues over the successor become fibromatosed and more difficult to penetrate.
As suggested by many if supernumerary teeth were normally orientated, delayed eruption
was likely to occur, whereas inverted supernumeraries were more likely to be associated with bodily displacement of the permanent incisors, median diastema and torsiversion.
Foster and Taylor found tuberculate type supernumerary teeth more commonly produced delayed eruption
, whereas conical types more commonly produced displacement of the adjacent dentition (Foster TD, Taylor GS, 1969).
The primary maxillary anterior teeth are more susceptible for injuries, with avulsion being around 9-12% in a Danish population.2 Permanent maxillary incisors erupt at 6.5 to 7.5 years, and thus, the early loss of primary anterior teeth may lead to a number of consequences such as space loss3, delayed eruption
and mis-aligned permanent teeth1, problems in speech4, low self-esteem4,5 and the development of tongue thrusting habits.6
The clinical spectrum of tooth eruption disorders includes both syndromic and non-syndromic problems ranging from delayed eruption
to a complete failure of eruption.
TABLE 2: BIRTHWEIGHT (GRAMS) AND NOR- MAL OR DELAYED ERUPTION
Oral findings in hypothyroidism include macroglo- ssia, dysgeusia, delayed eruption
of teeth, poor peri- odontal health, enamel hypoplasia in both dentitions, anterior open bite and delayed wound healing6 (Table 1).