Influence on Implant Bone Healing of a Collagen Membrane Placed Subjacent the Sinus Mucosa—A Randomized Clinical Trial on Sinus Floor Elevation

Dentistry Journal

Daniele Botticelli¹  Mauro Ferri²  Adriano Piattelli³  Giovanna Iezzi³  Akihiro Morimoto⁴  Nobuhiro Kobayashi⁴  Natalia Fortich Mesa⁵ 

[1] ARDEC Academy, 47923 Rimini, Italy;ARDEC Foundation, Cartagena de Indias 130001, Colombia;Department of Medical Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy;Department of Oral Implantology, School of Dentistry, Osaka Dental University, Osaka 573-1144, Japan;School of Dentistry, University Corporation Rafael Núñez, Cartagena de Indias 130001, Colombia;

关键词: bone grafting;    xenograft;    dental implants;    bone healing;    osteoconductivity;    sinus mucosa;   

DOI  :  10.3390/dj10060105

来源: DOAJ

【 摘 要 】

Background: Perforation of the sinus mucosa is quite a frequent complication that might occur during sinus floor elevation. The perforation is often protected with a collagen membrane to avoid the extrusion of graft particles within the sinus. However, this procedure might hinder the innate osteogenic potential of the sinus mucosa. Hence, the aim of the study was to evaluate the influence of a placement of a collagen membrane subjacent the Schneiderian membrane during sinus floor elevation on implant bone healing. Methods: Twenty volunteers took part in the trial. Ten were randomly included in the group that received a collagen membrane subjacent the sinus mucosa (Mb group), and ten did not receive the membrane (non-Mb group). A collagenated corticocancellous porcine bone was used to fill the elevated space. Six 6 months after the sinus floor elevation, a mini implant was placed transcrestally and retrieved after a further 3 months. Histological analyses were then performed on the full body of the mini implant as well as on its coronal and apical portions. Results: The new bone apposition proportion onto the implant surface was similar in the Mb and non-Mb groups, both in the apical and coronal portions of the mini implants. A lesser amount of graft was found in contact with the surface. New bone density around the mini implants were similar both in the apical and coronal portions. However, a statistically higher proportion of graft particles was found in the Mb group compared to the non-membrane group. Conclusions: The placement of a collagen membrane subjacent the sinus mucosa did not affect bone healing at implants and bone density.

【 授权许可】

Unknown