The innate osteogenic potential of the maxillary sinus (Schneiderian) membrane: an ectopic tissue transplant model simulating sinus lifting

Abstract Background The presence of septa increases the risk of Schneiderian membrane perforation during sinus lift procedure, and therefore, the chance of graft failure increases. We present a safe method of managing septa and, in particular, overcoming small and palatally located septa. Methods After the elevation of the flap and the creation of a small bony window positioned anterior to the septum, the Schneiderian membrane is lifted carefully. A thin and narrow osteotome is then placed at the indentation created at the base of the septum, and mobilization of the septum is achieved by gentle malleting. The membrane is again carefully lifted up behind the septum. Results There was one small membrane perforation case in all 16 cases, and none of these patients showed postoperative complications such as implant failure, infection, or maxillary sinusitis. Conclusions This technique is useful for overcoming the problem of maxillary sinus septa hindering the sinus floor elevation procedure, leading to fewer complications.

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Comparing the osteogenic potential of schneiderian membrane and dental pulp mesenchymal stem cells: an in vitro study

Cell and Tissue Banking ◽

10.1007/s10561-020-09887-4 ◽

2021 ◽

Author(s):

Antoine Berbéri ◽

Joseph Sabbagh ◽

Rita Bou Assaf ◽

Michella Ghassibe-Sabbagh ◽

Fatima Al-Nemer ◽

...

Keyword(s):

Stem Cells ◽

Mesenchymal Stem Cells ◽

Dental Pulp ◽

In Vitro Study ◽

Vitro Study ◽

Osteogenic Potential ◽

Schneiderian Membrane

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Maxillary Sinus Augmentation Using Ceramic Alloplastic Granules or Paste: An Experimental Study in Rabbits

Dentistry Journal ◽

10.3390/dj9060065 ◽

2021 ◽

Vol 9 (6) ◽

pp. 65

Author(s):

Michael Medeiros Costa ◽

Daniele Botticelli ◽

Ofer Moses ◽

Yuki Omori ◽

Shigeo Fujiwara ◽

...

Keyword(s):

Bone Formation ◽

Maxillary Sinus ◽

Biological Behavior ◽

Collagen Membrane ◽

Alloplastic Material ◽

New Bone Formation ◽

Sinus Augmentation ◽

Beta Tricalcium Phosphate ◽

Sinus Lifting ◽

Points Of View

Background: Due to the lack of data comparing the biological behavior of two formulations, granules and paste, of alloplastic graft from microtomographic and histomorphometric points of view, the aim of the present experiment was to compare the histomorphometric and microtomographic healing of two formulations, i.e., granules (MR sites) or paste (MR-inject sites) of an alloplastic graft composed of a combination of beta-tricalcium phosphate and hydroxyapatite used for maxillary sinus lifting. Methods: A sinus lifting procedure was carried out bilaterally in 20 rabbits, and the elevated space was filled with either paste or granules of an alloplastic material. A collagen membrane was placed on the antrostomy and the animals were euthanized after 2 or 10 weeks, 10 animals each group. Microtomographic and histological analyses were performed. Results: Higher proportions of new bone formation were found at the MR, compared to the MR-inject sites both after 2 weeks (2.65 ± 2.89% vs. 0.08 ± 0.12%; p < 0.01) and 10 weeks of healing (34.20 ± 13.86 vs. 23.28 ± 10.35%; p = 0.022). Conclusions: It was concluded that new bone formation was faster in the MR sites, compared to the MR-inject. However, a longer time of healing should be allowed to make final conclusions about the efficiency in bone formation of the paste formulation of the biomaterial used in the present study.

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Influence of the Periapical Status of the Posterior Maxillary Teeth on the Width of the Schneiderian Membrane of the Maxillary Sinus Mucosa

Applied Sciences ◽

10.3390/app11093908 ◽

2021 ◽

Vol 11 (9) ◽

pp. 3908

Author(s):

Igor Tsesis ◽

Eyal Rosen ◽

Ilan Beitlitum ◽

Einat Dicker-Levy ◽

Shlomo Matalon

Keyword(s):

Maxillary Sinus ◽

Third Molar ◽

Root Tips ◽

Schneiderian Membrane ◽

Second Molar ◽

Periapical Lesions ◽

Posterior Maxilla ◽

Mucosal Thickness ◽

Tooth Type ◽

Mucosal Thickening

Background: Various parameters are known to affect the amount and type of mucosal thickening. The aim of this retrospective study was to investigate these effects through a survey of cone-beam computed tomography (CBCT) images. CBCT scans of 150 patients, which included the area of the MS and maxillary teeth (canine, first premolar, second premolar, first molar, second molar, and third molar), were evaluated retrospectively for the presence of sinus mucosal thickening. The parameters evaluated as possible causes of mucosal thickening were age, sex, tooth type, proximity to the maxillary sinus, endodontic treatment, and periapical lesion. Descriptive statistics and multiple logistic regression were used to analyze the data. A total of 28% of the teeth presented with mucosal thickening, which was associated with periapical lesions in 57.1% of 77 cases. The size of the lesion was the only parameter that was found to be significantly connected to the presence of mucosal thickness. More than 50% of teeth with periapical lesions in the posterior maxilla exhibited mucosal thickening. Other parameters such as age, sex, and the position of the root tips in relation to the MS floor did not influence the probability of developing mucosal thickening.

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Efficacy and safety of maxillary sinus lifting with various types of grafting with implants insertion purposes: A review of the literature

Panorama brasileiro de tungstênio (w) entre os anos de 2008 e 2014 ◽

10.32749/nucleodoconhecimento.com.br/dentistry/efficacy-and-safety ◽

2020 ◽

pp. 31-45

Author(s):

João de Paula Martins Júnior ◽

Álvaro Nagib Atallah

Keyword(s):

Clinical Trials ◽

Maxillary Sinus ◽

Bone Grafting ◽

Randomized Clinical Trials ◽

Bone Volume ◽

Local Inflammatory Response ◽

Average Percentage ◽

Significant Difference ◽

Different Types ◽

Sinus Lifting

Context: Edentulous patients under the use of removable prosthesis face important restrictions, including sociocultural ones and, for this reason, the insertion of implants has become frequent in clinical dental practice. However, the success of the method will depend on the sort of different types of bone grafting, quality of donor area and the residual amount of bone left in insertion site. Purpose: the purpose of this study was to evaluate the effectiveness and safety of different types of bone grafts used in maxillary sinus lifting surgeries for implant insertion. Methods: systematic review of randomized clinical trials or quasi-randomized. We used the guidelines of the manual of systematic reviews from Cochrane Collaboration and a sensitive search strategy in three electronic databases has been built. Results: We included six randomized clinical trials from different regions of the world with 135 participants. Bone volume was 3% higher on the grafted site with autogenic bone pure, but not a statistically significant difference DM: 3 (-8.48-14.48), the average percentage between the vital and non-vital bone showed up 0.82% higher on the grafted site with FDBA + PRP. The average percentage of vital tissue was also 15.8% higher on the side where PRP was used. Conclusion: the available evidence is insufficient to recommend a specific type of bone grafting in sinus augmentation (lift) procedures to place a dental implant. There was no statistically significant difference for bone volume, sensory loss, local inflammatory response and loss of implants, among others. For this reason, new randomized controlled trials that evaluate the effectiveness and safety of different types of bone graft for lifting of the maxillary sinus are necessary. Key-words: Maxillary sinus. Grafting, survey, technique, materials.

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