Engelsk titel: Vertical rebuilding of atrophic mandible with “tent-pole”- technique
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Författare:
Thorn, Jens Jörgen
;
Stokbro, Kasper
Email: kasper.stokbro@rsyd.dk
Språk: Dan
Antal referenser: 13
Dokumenttyp:
Fallbeskrivning
UI-nummer: 17120070
Sammanfattning
Introduction – Extreme vertical atrophy of the edentulous mandible
(height below 7 mm at the lowest point) challenges the conventional
treatment options for prosthetic rehabilitation.
“Tent pole” technique is a predictable method to rebuild the mandible
with extreme vertical atrophy; the bony reconstruction is
supported by four implants that function as tent poles placed
anterior to the mental foramina. The implants function as tent
poles to relieve the reconstruction during healing. The mandible is
rebuilt through a submental incision to maintain the blood supply
to the soft tissue intraorally.
Case study – A 71-year-old woman was referred to rehabilitative
treatment due to extreme vertical atrophy of the mandible
and lack of retention of the lower dental prosthesis. The
functional problem also included a mandibular body fracture
with signs of non-union 7 years after treatment. The mandible
was rebuilt using autologous, posterior hip bone and BioOss.
The bony reconstruction was supported by 4 Nobel Active
implants. The treatment proceeded without complications,
the fracture healed and the mandibular height was increased
from 5.4 mm preoperatively to 9.9 mm two years postoperatively.
Conclusion – “Tent pole” technique provides a predictable treatment
result for extreme vertical atrophy, when the mandibular
structural integrity is challenged. The treatment should be reserved
for selected patients and should not be performed if less
invasive treatments options are available.