scholarly journals Clinical Outcome of Dental Implants after Maxillary Sinus Augmentation with and without Bone Grafting: A Retrospective Evaluation

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2479
Author(s):  
Gianluca Martino Tartaglia ◽  
Pier Paolo Poli ◽  
Stephen Thaddeus Connelly ◽  
Carlo Maiorana ◽  
Davide Farronato ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Alveolar Bone ◽  
Blood Clot ◽  
Survival Rates ◽  
Lateral Sinus ◽  
Sinus Augmentation ◽  
Implant Placement ◽  
Kaplan Meier ◽  
Sinus Floor Augmentation ◽  
Sinus Floor

(1) Background: The purpose of the present study was to retrospectively evaluate and compare the outcome of two sinus augmentation grafting protocols using a xenograft or blood clot alone over a 72-month follow-up. (2) Methods: Patients who received simultaneous lateral sinus floor augmentation and implant placement were included. Subjects were divided into two groups according to the grafting material, namely xenograft or blood clot, and into sub-groups based on the residual alveolar bone height (RABH) below the maxillary sinus, namely 4 to 6 mm or > 6 mm. Kaplan–Meier survival estimates were calculated for each material group and for each sub-group at 1, 3, and 6 years. (3) Results: In total, 289 implants inserted in 136 patients with a one-stage procedure were considered. A total of 35 failures were registered. Overall survival rates were 94.2% for xenograft and 85.9% for blood clot alone at 1 year, 91.1% and 81.6% at 3 years, and 91.1% and 78.7% at 6 years. (4) Conclusions: In patients with 4–6 mm RABH, graftless interventions exploiting blood clot alone were not as successful as those using xenograft. When the RABH is low, sinus floor augmentation associated with grafting materials should be preferred whenever possible.

scholarly journals The Radiographic Management for Surgical Planning and Implant Placement: a Case of Atypical Antral Artery Position

2018 ◽  
Vol 20 (1) ◽  
pp. 8
Author(s):  
Júlio César Schroder ◽  
Ana Paula Tulio Manfron ◽  
Alessandra Soares Ditzel ◽  
Aaron Trujillo ◽  
Angela Deliga Schroder ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Surgical Planning ◽  
Cone Beam ◽  
Bleeding Complications ◽  
Radiographic Examination ◽  
Radiographic Evaluation ◽  
Sinus Augmentation ◽  
Implant Placement ◽  
Sinus Floor Augmentation ◽  
Sinus Floor

O conhecimento do suprimento sanguíneo do seio maxilar, em particular da parede lateral, é de considerável importância devido à possibilidade de rompimento acidental de uma artéria durante os procedimento de elevação do assoalho do seio maxilar. Paciente do sexo feminino, 65 anos de idade, com histórico de complicação pós-operatória, após procedimento de elevação do seio maxilar realizado há três anos. Após avaliação tomográfica, foi observada a presença da artéria antral em posição atípica. Identificar e reconhecer essa estrutura anatômica pelo exame radiográfico pré-operatório, evita possíveis complicações hemorrágicas, durante e após o procedimento cirúrgico.Palavras-chave: Tomografia Computadorizada de Feixe Cônico. Seio Maxilar. Procedimentos Cirúrgicos Operatórios.AbstractIt is very important the knowledge of the maxillary sinus blood supply, in particular of the lateral maxillary wall, due to the possibility of accidental rupture of a vessel during the sinus floor augmentation. A case report is described of a 65-year-old female, who reported a postoperative complication after a sinus augmentation that she had had 3 years before. After radiographic evaluation, it was observed the presence of antral artery in atypical position. The identification of this anatomical structure is very important, by preoperative radiographic examination, avoiding possible bleeding complications, during and after the surgical procedures.keywords: Cone-Beam Computed Tomography. Maxillary Sinus. Surgical Procedures, Operative.

Radiological Evaluation of Maxillary Sinus Augmentation with Calcium Phosphate Materials and Influence of Titanium Dental Implant Artifacts

2017 ◽  
Vol 267 ◽  
pp. 145-148
Author(s):  
Laura Neimane ◽  
Andrejs Skagers
Keyword(s):  
Calcium Phosphate ◽  
Maxillary Sinus ◽  
Dental Implant ◽  
Alveolar Bone ◽  
Sinus Augmentation ◽  
Maxillary Bone ◽  
Maxillary Sinus Augmentation ◽  
Sinus Floor Augmentation ◽  
Titanium Dental Implant ◽  
Sinus Floor

Sinus floor augmentation operations with calcium phosphate materials are performed when natural maxillary bone quality and quantity fail to be able to support titanium dental implants. Sinus floor augmentation can be done in one step operation when titanium implant is inserted at the same time when calcium phosphate materials. This type surgery can be done if there is enough maxillary alveolar bone height to stabilize the implant. If there is not enough bone then two step maxillary floor augmentation is performed when dental implant is placed after few months. Calcium phosphate materials are often used for maxillary sinus augmentation. These materials cause remineralization of residual maxillary alveolar bone [1]. That can be observed histologically [2,3]. However histological evaluation often means interference. Radiological investigation can be used to examine postoperatively augmented area. Nowadays cone beam computed tomography (CBCT) is the radiological method of choice for maxillofacial region due to low radiation and high quality images. There was no date found in literature on maxillary bone remineralization measured in voxel grey value density (VV) on CBCT. Rotation movement of CBCT cause beam hardening artifacts [4,5] that can alter correct measurements of bone and augmentation zone radiodensity. The aim of this study was to calculate remineralization of maxillary alveolar bone after augmentation with calcium phosphate materials radiologically and degree of artifacts created by titanium dental implant in CBCT images.

scholarly journals The Influence of Residual Alveolar Bone Height on Graft Composition after Maxillary Sinus Augmentation Using Two Different Xenografts: A Histomorphometric Comparative Study

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5093
Author(s):  
Silvio Taschieri ◽  
Moses Ofer ◽  
Stefano Corbella ◽  
Tiziano Testori ◽  
Claudia Dellavia ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Alveolar Bone ◽  
Lamellar Bone ◽  
Sinus Augmentation ◽  
Woven Bone ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation ◽  
Bone Height

Aim: To evaluate the hypothesis of a correlation between the preoperative residual alveolar bone height (RBH) and graft maturation after maxillary sinus floor augmentation procedures using two different bone substitutes. Methods: A total of 20 patients who underwent unilateral maxillary sinus floor augmentation with either mineralized deproteinized bovine bone (DBBM) or a xenograft enriched with polymer and gelatin (NBS) were included in this prospective study. Six months after sinus surgery, bone biopsies were harvested with a 3.2 mm diameter trephine bur, prior to dental implant placement. Histomorphometric analysis was performed, and the results were correlated with the individual RBH. Implants were loaded after 5 months of insertion, and 1-year implant success and marginal bone level change were assessed. Results: RBH was 2.17 ± 1.11 mm (range 0.5–3.5 mm) and 2.14 ± 0.72 mm (range 0.5–3.0 mm) in the NBS and DBBM group, respectively. The biopsy analyses for the DBBM group showed woven bone increases by 5.08% per 1-mm increment of RBH; medullary spaces decreased by 9.02%, osteoid decreased by 4.4%, residual biomaterial decreased by 0.34%, and lamellar bone increased by 5.68% per 1-mm increase of RBH. In the NBS group, samples showed woven bone increases by 8.08% per 1-mm increase of RBH; medullary spaces decreased by 0.38%; osteoid increased by 1.34%, residual biomaterial decreased by 0.58%, and lamellar bone decreased by 5.50% per 1-mm increase of RBH. There was no statistically significant difference in the correlation between RBH and lamellar bone, woven bone, and osteoid, independently of the material used. Implant success was 100% in both groups, and marginal bone loss was 1.02 ± 0.42 mm in DBBM and 0.95 ± 0.31 mm in the NBS group after the 1-year follow-up. Conclusion: In spite of the absence of significance, the observed trend for woven bone to increase and medullary spaces to decrease when RBH increases deserves attention. Residual bone dimension might be a determinant in the bone graft maturation after maxillary sinus augmentation.

scholarly journals PRF-Solution in Large Sinus Membrane Perforation with Simultaneous Implant Placement-Micro CT and Histological Analysis

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 438
Author(s):  
Horia Mihail Barbu ◽  
Stefania Andrada Iancu ◽  
Violeta Hancu ◽  
Daniel Referendaru ◽  
Joseph Nissan ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Micro Ct ◽  
Implant Placement ◽  
Membrane Perforation ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
The Mean ◽  
Maxillary Sinus Floor Augmentation ◽  
Sinus Membrane

Background: The purpose of the study was to analyze the efficacy of platelet-rich fibrin (PRF) as a single augmentation material for complicated cases of maxillary sinus floor elevation, resulting from membrane perforation or previous infections. Methods: Implant insertion in the posterior region of the maxilla was simultaneously performed with maxillary sinus floor augmentation. Schneiderian membrane elevation can be accompanied by extremely serious sinus membrane perforation, due to accidental tearing or intended incision for mucocele removal. PRFs were placed in the sinus cavity both for membrane sealing and sinus floor grafting. Radiological, histological and micro-CT analyses were performed. Implant survival was assessed every 6 months for 1 to 4 years, with a mean follow up of 1.8 years, after prosthetic loading. Radiological examinations were performed on CBCT at 9 and 12 and 36 months postoperatively and revealed improved degrees of radiopacity. Results: 19 implants were simultaneously placed in the course of nine maxillary sinus floor augmentation surgeries, with successful outcomes in terms of bone grafting and implant integration. New bone formation was evidenced 12 months postoperatively on radiological examination, micro-CT analysis, and histological analysis of a harvested bone segment from the augmented maxillary sinus. The mean gain in bone height of the sinus floor augmentation was 6.43 mm, with a maximum of 9 mm. The mean amount of vital bone obtained from histologic assessment was 52.30%, while bone volume/tissue volume ratio in micro-CT 3D had a mean of 50.32%. Conclusions: PRF may be considered as an alternative treatment for a single surgery of sinus augmentation with simultaneous implant placement, even in complicated cases with significant sinus membrane tearing.

Surgical Ciliated Cyst Following Maxillary Sinus Floor Augmentation: A Case Report

2017 ◽  
Vol 43 (5) ◽  
pp. 360-364 ◽  
Author(s):  
Shinsuke Yamamoto ◽  
Keigo Maeda ◽  
Izumi Kouchi ◽  
Yuzo Hirai ◽  
Naoki Taniike ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Alveolar Bone ◽  
Maxillary Sinusitis ◽  
Critical Role ◽  
Japanese Woman ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation ◽  
Ciliated Cyst

Maxillary sinus floor augmentation is considered to play a critical role in dental implant treatment. Although many complications, such as maxillary sinusitis and infection, are well known, few reports are available on the risk of surgical ciliated cyst following the procedure. Here, we report a case of surgical ciliated cyst following maxillary sinus floor augmentation. A 55-year-old Japanese woman was referred to our hospital because of alveolar bone atrophy in the bilateral maxilla. We performed bilateral maxillary sinus floor augmentation by the lateral window technique without covering the window. The Schneiderian membrane did not perforate during the operation. She returned to our hospital after 9 years due to swelling of the left buccal region. Computerized tomography revealed a well-defined radiolucent area with radiodense border intraosseously localized in the left maxilla. We performed enucleation of the cyst with the patient under general anesthesia. Histological examination of the specimen showed a surgical ciliated cyst. In conclusion, the course of this patient has 2 important implications. First, the sinus membrane entrapped in the grafted bone without visible perforation and or tearing can develop into a surgical ciliated cyst. Second, there is a possibility that covering the lateral window tightly might prevent the development of a surgical ciliated cyst.

scholarly journals Comparative Study on the Efficacy of Anorganic Bovine Bone (Bio-Oss) and Nanocrystalline Hydroxyapatite (Ostim) in Maxillary Sinus Floor Augmentation

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Adileh Shirmohammadi ◽  
Leila Roshangar ◽  
Mohammad Taghi Chitsazi ◽  
Reza Pourabbas ◽  
Masoumeh Faramarzie ◽  
...  
Keyword(s):  
Statistical Significance ◽  
Rank Test ◽  
Bovine Bone ◽  
Sinus Augmentation ◽  
Implant Placement ◽  
Nanocrystalline Hydroxyapatite ◽  
Signed Rank Test ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
The Difference

Purpose. The aim of this study was to evaluate the efficacy of anorganic bovine bone (Bio-Oss) in comparison with nanocrystalline hydroxyapatite (Ostim) in sinus floor augmentation. Methods. Ten patients aged 40–80 were selected. All the patients needed sinus floor augmentation due to insufficient bone for simultaneous implant placement. The patients underwent panoramic radiography and cone beam computed tomography (CBCT) prior to surgical procedure. After lifting the sinus membrane, Bio-Oss and Ostim are randomly grafted at one of the two sides. Biopsies were obtained from areas identified 5 months after the surgery and before implant placement and then were prepared for histological analysis. Statistical analysis was performed with nonparametric Wilcoxon signed-rank test for comparison of histological and radiological parameters between the two groups. Results. Histological findings revealed a significant increase in percentages of new bone in the Ostim group (P=0.015). Furthermore, new bone density was greater with Ostim compared to Bio-Oss (P=0.038); however, the difference in height increase after surgery did not reach statistical significance (P=0.191). Conclusion. Despite the limitations of this trial, Ostim and Bio-Oss are useful biomaterials in sinus augmentation and Ostim seems to be even more effective in new bone formation.

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