Retrospective Evaluation of Implants Placed in Iliac Crest Autografts and Pristine Bone.

Beck, Florian; Watzak, Georg; Lettner, Stefan; Gahleitner, André; Gruber, Reinhard; Dvorak, Gabriella; Ulm, Christian (2022). Retrospective Evaluation of Implants Placed in Iliac Crest Autografts and Pristine Bone. Journal of clinical medicine, 11(5) MDPI 10.3390/jcm11051367

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OBJECTIVE

Iliac crest autografts can compensate for severe mandibular atrophy before implant placement. However, the implant success in the augmented bone is not entirely predictable. Here we performed a retrospective cohort study to determine the success and related parameters of implants placed in augmented bone and pristine bone for up to 11 years.

MATERIAL AND METHODS

We analyzed 18 patients where 72 implants were placed six months after iliac crest transplantation and 19 patients where 76 implants were placed in pristine bone. The primary endpoint was implant loss. Secondary endpoints were the implant success, peri-implant bone loss, and the clinical parameters related to peri-implantitis. Moreover, we evaluated the oral-health-related quality of life (OHIP).

RESULTS

Within a mean follow-up of 5.8 ± 2.2 and 7.6 ± 2.8 years, six but no implants were lost when placed in augmented and pristine bone, respectively. Among those implants remaining in situ, 58% and 68% were rated as implant success (p = 0.09). A total of 11% and 16% of the implants placed in the augmented and the pristine bone were identified as peri-implantitis (p = 0.08). Bone loss was similar in both groups, with a mean of 2.95 ± 1.72 mm and 2.44 ± 0.76 mm. The mean OHIP scores were 16.36 ± 13.76 and 8.78 ± 7.21 in the augmentation and the control group, respectively (p = 0.35).

CONCLUSIONS

Implants placed in iliac crest autografts have a higher risk for implant loss and lower implant success rates compared to those placed in the pristine bone.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology

UniBE Contributor:

Gruber, Reinhard

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2077-0383

Publisher:

MDPI

Language:

English

Submitter:

Pubmed Import

Date Deposited:

11 Mar 2022 11:49

Last Modified:

05 Dec 2022 16:14

Publisher DOI:

10.3390/jcm11051367

PubMed ID:

35268457

Uncontrolled Keywords:

atrophy autologous transplants dental implants iliac crest bone implant-supported denture mandible

BORIS DOI:

10.48350/167209

URI:

https://boris.unibe.ch/id/eprint/167209

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