Implant-supported restoration of congenitally missing teeth using cancellous bone block-allografts

Joseph Nissan, Ofer Mardinger, Morris Strauss, Michael Peleg, Roberto Sacco, Gavriel Chaushu

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Background and objective: Patients with congenitally missing teeth may present with undeveloped alveolar bone morphology, making implant reconstruction a challenge. The aim of the present study was to evaluate the outcome of dental implants after ridge augmentation with cancellous freeze-dried block bone allografts in patients with congenitally missing teeth. Study design: Twelve patients with a mean age of 21 ± 4 years, were included. Congenitally missing teeth included maxillary lateral incisors, a maxillary canine, and mandibular central and lateral incisors. A bony deficiency of <3 mm horizontally and ≤3 mm vertically according to computerized tomography served as inclusion criteria. Twenty-one implants were inserted after a healing period of 6 months. Five out of 21 implants were immediately restored. Bone measurements were taken before bone augmentation, during implant placement, and at second-stage surgery. Results: Nineteen cancellous allogeneic bone-blocks were used. The mean follow-up time was 30 ± 16 months. Bone block and implant survival rates were 100% and 95.2%, respectively. Mean bone gain was statistically significant (P < .001): 5 ± 0.5 mm horizontally and 2 ± 0.5 mm vertically. All of the patients received a fixed implant-supported prosthesis. Soft tissue complications occurred in 4 patients (30%). Complications after cementation of the crowns were seen in 1 implant (4.8%). All implants remained clinically osseointegrated at the end of the follow-up examination. There was no crestal bone loss around the implants beyond the first implant thread. Conclusion: Cancellous bone block-allografts can be used successfully for implant-supported restorations in patients with congenitally missing teeth.

Original languageEnglish
Pages (from-to)286-291
Number of pages6
JournalOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
Volume111
Issue number3
DOIs
StatePublished - Mar 1 2011

Fingerprint

Allografts
Tooth
Bone and Bones
Incisor
Cementation
Dental Implants
Cancellous Bone
Crowns
Prostheses and Implants
Canidae
Survival Rate
Tomography

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Surgery
  • Dentistry(all)
  • Oral Surgery

Cite this

Implant-supported restoration of congenitally missing teeth using cancellous bone block-allografts. / Nissan, Joseph; Mardinger, Ofer; Strauss, Morris; Peleg, Michael; Sacco, Roberto; Chaushu, Gavriel.

In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, Vol. 111, No. 3, 01.03.2011, p. 286-291.

Research output: Contribution to journalArticle

Nissan, Joseph ; Mardinger, Ofer ; Strauss, Morris ; Peleg, Michael ; Sacco, Roberto ; Chaushu, Gavriel. / Implant-supported restoration of congenitally missing teeth using cancellous bone block-allografts. In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology. 2011 ; Vol. 111, No. 3. pp. 286-291.
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