Influence on Implant Bone Healing of a Collagen Membrane Placed Subjacent the Sinus Mucosa-A Randomized Clinical Trial on Sinus Floor Elevation.
bone grafting
bone healing
collagen membrane
dental implants
morphometry
osteoconductivity
sinus mucosa
xenograft
Journal
Dentistry journal
ISSN: 2304-6767
Titre abrégé: Dent J (Basel)
Pays: Switzerland
ID NLM: 101716125
Informations de publication
Date de publication:
08 Jun 2022
08 Jun 2022
Historique:
received:
01
03
2022
revised:
15
04
2022
accepted:
06
06
2022
entrez:
23
6
2022
pubmed:
24
6
2022
medline:
24
6
2022
Statut:
epublish
Résumé
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. 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. 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. The placement of a collagen membrane subjacent the sinus mucosa did not affect bone healing at implants and bone density.
Sections du résumé
BACKGROUND
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
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
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
CONCLUSIONS
The placement of a collagen membrane subjacent the sinus mucosa did not affect bone healing at implants and bone density.
Identifiants
pubmed: 35735646
pii: dj10060105
doi: 10.3390/dj10060105
pmc: PMC9221570
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : ARDEC Academy
ID : NA
Organisme : Sweden & Martina
ID : NA
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