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Home Retrospective analysis of factors influencing the eruption of delayed permanent incisors after...

Retrospective analysis of factors influencing the eruption of delayed permanent incisors after supernumerary tooth removal

Authors:

  • R. A. Bryan
    Department of Child Dental Care, Glasgow Dental Hospital and School, Glasgow, Scotland
  • B. O. Cole
    Department of Child Dental Health, Newcastle Dental Hospital and School, Newcastle, England
  • R. R. Welbury
    Department of Child Dental Care, Glasgow Dental Hospital and School, Glasgow, Scotland

ABSTRACT


Aim

This was to assess the predictability of eruption of delayed permanent incisors after supernumerary removal and
creation of adequate space, in relation to: root maturity, degree of vertical impaction, and degree of angulation of impaction.

Methods

The dental records of children with supernumerary teeth delaying the eruption of permanent incisors were analysed. The type of a
supernumerary tooth, its location and position were recorded, along with the stage of root maturation, angulation and vertical distance of
impaction of the permanent incisor. At the initial surgery, the unerupted supernumerary tooth and any retained primary incisors were
removed. The unerupted permanent incisor was not exposed. If necessary, the maxillary primary canines were removed to create
sufficient space for eruption of the delayed permanent tooth. A secondary surgical procedure was planned after 18 months if there was
no significant progress of the permanent tooth towards eruption. STATISTICS: All data were entered onto a Microsoft Excel spread
sheet and analysed using Fisher's Exact Tests throughout due to the small numbers.

Results

Sixty-six supernumerary teeth were
removed, 22 from boys and 44 from girls with ages ranging from 6 to 10 years 6 months at the time of surgery. Primary canines were
extracted in 59.1 of cases. Spontaneous eruption occurred in 89.4 of delayed permanent teeth. The mean time to
eruption was 9.2 months (median = 7 months). There was no statistically significant association between tooth eruption and root
maturity or the degree of vertical impaction. There was an association between eruption and the degree of the angle of impaction of the
permanent incisor (p<0.05).

Conclusion

The majority of delayed permanent teeth erupt spontaneously if sufficient space is
available or created at the time of removal of the unerupted supernumerary. The angulation of impaction of the permanent incisor is
associated with a delay in eruption.

PLUMX METRICS

Publication date:

Jun /2005

Keywords:

delayed incisor eruption, supernumerary teeth

Issue:

Vol.6 – n.2/2005

Page:

84 – 89

Publisher:

Ariesdue

Cite:


Harvard: R. A. Bryan, B. O. Cole, R. R. Welbury (2005) "Retrospective analysis of factors influencing the eruption of delayed permanent incisors after supernumerary tooth removal", European Journal of Paediatric Dentistry, 6(2), pp84-89. doi:
Vancouver: R. A. Bryan, B. O. Cole, R. R. Welbury. Retrospective analysis of factors influencing the eruption of delayed permanent incisors after supernumerary tooth removal. European Journal of Paediatric Dentistry [Internet]. 2005Jun.1 [cited 2025Jun.20];6(2):84-89. Available from: https://www.ejpd.eu/abstract-pubmed/retrospective-analysis-of-factors-influencing-the-eruption-of-delayed-permanent-incisors-after-supernumerary-tooth-removal/
MLA: R. A. Bryan, B. O. Cole, R. R. Welbury Retrospective analysis of factors influencing the eruption of delayed permanent incisors after supernumerary tooth removal. European Journal of Paediatric Dentistry. 2005;6(2):84-89

Copyright (c) 2021 Ariesdue

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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    European Journal of Paediatric Dentistry © | ISSN (Online): 2035-648X
    Registrazione del Tribunale di Milano n. 285 del 14.04.1998 | ROC 1946 - 26.09.2001
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