G. Kearns et al., Placement of endosseous implants in children and adolescents with hereditary ectodermal dysplasia, ORAL SURG O, 88(1), 1999, pp. 5-10
Citations number
26
Categorie Soggetti
Dentistry/Oral Surgery & Medicine
Journal title
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS
Objective. The purposes of this investigation were to study the feasibility
of placing endosseous implants in children and adolescents with ectodermal
dysplasia and to assess the position and stability of such implants during
growth. This article reports on 6 subjects with long-term follow-up.
Study design. A prospective study was commenced in 1991. Patients with here
ditary ectodermal dysplasia who were over the age of 5 years and who presen
ted to the University of California San Francisco Ectodermal Dysplasia Clin
ic for dental treatment were included and maintained in the study. In each
case, clinical and radiographic records were obtained before treatment, imm
ediately after implant placement, at delivery of the prosthesis, and subseq
uently at yearly intervals. Six subjects are reported, 4 as members of the
prospective study group and 2 who had been treated before the study began.
Results. A total of 41 implants (19 maxillary, 22 mandibular) were placed.
The average follow-up after implant placement was 7.8 years (range, 6-11 ye
ars), and the average time since restoration was 6 years (range, 5-10 years
). Forty implants successfully integrated and have been restored. There was
no evidence that implant placement or prosthetic rehabilitation resulted i
n restriction of transverse or sagittal growth. One mandibular implant, pla
ced in a partially dentate 5-year-old, became submerged because of adjacent
alveolar development and required placement of a longer abutment. Four max
illary implants placed in a partially dentate 7-year-old also became submer
ged and required prosthetic revision and the placement of longer abutments.
Conclusions. This preliminary report suggests that endosseous implants can
be successfully placed and can provide support for prosthetic restoration i
n patients with hereditary ectodermal dysplasia. However, vertical dentoalv
eolar growth results in submergence of the implant relative to the adjacent
natural dentition when implants are placed adjacent to erupting permanent
teeth.