Osseointegration at Implants Installed in Composite Bone: A Randomized Clinical Trial on Sinus Floor Elevation

Kotsu, Mitsuo; Alccayhuaman, Karol Alí Apaza; Ferri, Mauro; Iezzi, Giovanna; Piattelli, Adriano; Mesa, Natalia Fortich; Botticelli, Daniele

doi:10.3390/jfb13010022

Cited by 5 publications

(2 citation statements)

References 57 publications

(70 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…No differences were found between groups so that it was concluded that the placement of a collagen membrane on the access window did not influence the amount of new bone after sinus grafting. This corroborated the results from other studies performed by the same research group [41,42].…”

Section: Experimental Studiessupporting

confidence: 92%

Clinical and Histological Healing after Maxillary Sinus Floor Elevation

Botticelli¹

2022

Dentistry Journal

Self Cite

View full text Add to dashboard Cite

Sinus floor elevation is a surgical procedure that allows for the insertion of the implant in the posterior region of the maxilla in case of insufficient volume of native bone. Several studies have reported a high success rate, and this has helped to spread this surgical procedure around the world. The subject has been extensively studied and this could lead researchers to think that no new scientific evidence can be provided. However, new ideas and discoveries show that research never reaches a conclusion, and that new information can be added all the time. This collection aimed to provide new evidence that could be added to daily clinical work and to provide new ideas for future research.

show abstract

Section: Experimental Studiessupporting

confidence: 92%

Clinical and Histological Healing after Maxillary Sinus Floor Elevation

Botticelli¹

2022

Dentistry Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…Other similar studies evaluated bone healing of mini implants retrieved from sinus floor augmented sites. In those studies, it was shown that the dimensions and the positions of the access window had a scarce effect on the BIC% [ 19 , 20 ], while the surface characteristics yielded a strong effect on the BIC%, especially when implants were installed in composite bone, which is constituted by bone and residual graft [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

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

Morimoto

Kobayashi

Ferri³

et al. 2022

Dentistry Journal

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Healing Patterns of Non-Collagenated Bovine and Collagenated Porcine Xenografts Used for Sinus Floor Elevation: A Histological Study in Rabbits

Miyauchi

Izutani

Teranishi

et al. 2022

JFB

View full text Add to dashboard Cite

Objective: To compare healing of collagenated and non-collagenated xenografts used for maxillary sinus floor elevation. Materials and Methods: Two different xenografts were used: deproteinized bovine bone (DBBM group) and collagenated corticocancellous porcine bone (collagenated group). Healing was studied after 2, 4, and 8 weeks. The loss of dimensions of the elevated area and the percentages of new bone, xenograft remnants, osteoclastic zones, vessels, inflammatory infiltrates, and soft tissues were analyzed. Three regions were evaluated: close to the bone walls (bone wall region), subjacent the sinus mucosa (submucosa region), and the center of the elevated area (middle region). The primary variables were the percentage of new bone and xenograft remnants. Results: Between 2 and 8 weeks, the elevated areas showed a reduction of 16.3% and 52.2% in the DBBM and collagenated groups, respectively (p < 0.01 between the two areas after 8 weeks). After 8 weeks, the highest content of new bone was observed in the bone wall region, which was higher in the collagenated group than in the DBBM group (41.6% and 28.6%, respectively; p < 0.01). A similar quantity of new bone was found between the two groups in other regions. A higher percentage of vessels in all regions evaluated (p < 0.01) and soft tissue in the sub-mucosa region (p < 0.05) was found in the collagenated group than in the DBBM group. Conclusions: The present study showed that both xenografts allowed new bone formation. In comparison with the non-collagenated xenograft, the collagenated xenograft underwent higher resorption, resulting in greater shrinkage of the elevated space after sinus lifting and a higher content of new bone in the regions close to the bone walls. Clinical relevance: In this study, the region adjacent to the bone wall showed the highest new bone content. This region resembles the base of the sinus, closest to the sinus floor and walls, and is the most important region from a clinical point of view because it is where the implant will be installed. Residues of the biomaterial remained after 8 weeks of healing. Other reports have shown that these biomaterial residues may interfere with the integration of implants.

show abstract

Osseointegration at Implants Installed in Composite Bone: A Randomized Clinical Trial on Sinus Floor Elevation

Cited by 5 publications

References 57 publications

Clinical and Histological Healing after Maxillary Sinus Floor Elevation

Clinical and Histological Healing after Maxillary Sinus Floor Elevation

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

Healing Patterns of Non-Collagenated Bovine and Collagenated Porcine Xenografts Used for Sinus Floor Elevation: A Histological Study in Rabbits

Contact Info

Product

Resources

About