Single-staged implant placement using the bone ring technique with and without membrane placement: Micro-CT analysis in a preclinical in vivo study.

Nakahara, Ken; Haga-Tsujimura, Maiko; Igarashi, Kensuke; Kobayashi, Eizaburo; Schaller, Benoît; Lang, Niklaus P.; Saulacic, Nikola (2020). Single-staged implant placement using the bone ring technique with and without membrane placement: Micro-CT analysis in a preclinical in vivo study. Clinical oral implants research, 31(1), pp. 29-36. Wiley-Blackwell 10.1111/clr.13543

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OBJECTIVES

To assess the impact of collagen membrane application on bone formation surrounding implants placed simultaneously with the bone ring technique.

MATERIAL AND METHODS

Dental implants were inserted simultaneously with the bone ring technique in standardized, vertical alveolar bony defects in the mandible of dogs. On one side of the mandible, the augmented sites were covered with a collagen membrane (M-Group). On the contralateral side, no membranes were used (NM-Group). Implants were left to heal with osseointegration for three and six months. The harvested samples were analyzed by means of micro-CT.

RESULTS

A nonparametric analysis of data revealed that the membranes were not a significant negative factor for bone volume (BV), but for bone-to-implant contact (BIC, p = .04). Absence of healing caps impaired BV (p = .04) and BIC (p = .02) as well. Furthermore, loss of healing caps and exposure to the oral environment significantly and negatively affected BV (p < .001) and bone mineral density (p < .05) within 2 mm below the implant shoulder. Implant exposure and healing time had a negative interaction effect on both BV (p = .01) and BIC (p = .01).

CONCLUSIONS

Within its limitations, the present study revealed no benefit of membrane application to implant placement simultaneous with the bone ring technique. Disruption of soft tissue healing was identified as a risk factor for decrease in BV and BIC.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Schädel-, Kiefer- und Gesichtschirurgie
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Schädel-, Kiefer- und Gesichtschirurgie

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Craniomaxillofacial Surgery
04 Faculty of Medicine > School of Dental Medicine

UniBE Contributor:

Nakahara, Ken; Haga-Tsujimura, Maiko; Igarashi, Kensuke; Kobayashi, Eizaburo; Schaller, Benoît; Lang, Niklaus Peter and Saulacic, Nikola

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0905-7161

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Caroline Dominique Zürcher

Date Deposited:

03 Dec 2019 12:49

Last Modified:

17 Dec 2020 08:09

Publisher DOI:

10.1111/clr.13543

PubMed ID:

31541500

Uncontrolled Keywords:

animal experiments bone implant interactions bone regeneration imaging radiology surgical techniques

BORIS DOI:

10.7892/boris.135924

URI:

https://boris.unibe.ch/id/eprint/135924

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