scholarly journals Implant survival after graftless sinus floor augmentation in highly atrophic maxillae: a randomized controlled trial in a split mouth study

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Suen A. N. Lie ◽  
Carine A. W. Leung ◽  
Rick M. M. A. Claessen ◽  
Hans-Albert Merten ◽  
Peter A. W. H. Kessler
Keyword(s):  
Controlled Trial ◽  
Randomized Study ◽  
Implant Survival ◽  
Prosthetic Rehabilitation ◽  
Sinus Augmentation ◽  
Experimental Side ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
Edentulous Patients ◽  
Bone Gain

Abstract Purpose The success rate of dental implants after graftless sinus augmentation versus conventional sinus augmentation surgery in atrophic maxillae in edentulous patients was investigated. Methods This randomized study was performed in ten edentulous patients with marked maxillary atrophy. On the graftless side, the sinus membrane was lifted by a resorbable membrane. The control side was augmented with a mixture of autografts and xenografts. Implant placement followed 6 months postoperatively. Outcomes were implant survival, success of prosthetic rehabilitation and stability of vertical bone gain. Results Ten patients were included. Postoperative radiology showed sufficient bone gain on both maxillary sides. Follow-up varied from 57 to 88 months. The conventional side showed significant (p = 0.041) more bone gain than the experimental side (respectively, 9.69 mm and 6.20 mm). A total of 59 implants were placed: 30 after conventional, 29 after graftless augmentation. One implant was lost on the conventional side and four on the experimental side. The implant survival was significantly higher on the conventional side (96.7% vs. 86.2%, p < 0.001, RR = 4.14). Prosthetic restoration was functionally successful in all cases. Conclusion Bone gain and implant survival were significantly lower in the non-grafted side versus the grafted side. Prosthetic rehabilitation was possible in all ten patients. The non-grafted technique may have some potential for clinical use, although it showed poorer results. Trial registration The Netherlands Trialregister. NTR NL3541 (NTR3696). Registered 20 January 2013, https://www.trialregister.nl/trial/3541.

scholarly journals Management of Schneiderian membrane perforations during maxillary sinus floor augmentation with lateral approach in relation to subsequent implant survival rates: a systematic review and meta-analysis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Luis Alfredo Díaz-Olivares ◽  
Jorge Cortés-Bretón Brinkmann ◽  
Natalia Martínez-Rodríguez ◽  
José María Martínez-González ◽  
Juan López-Quiles ◽  
...  
Keyword(s):  
Systematic Review ◽  
Survival Rates ◽  
Lateral Approach ◽  
Implant Survival ◽  
Schneiderian Membrane ◽  
Membrane Perforation ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation

Abstract Background This systematic review aimed to propose a treatment protocol for repairing intraoperative perforation of the Schneiderian membrane during maxillary sinus floor augmentation (MSFA) procedures with lateral window technique. In turn, to assess subsequent implant survival rates placed below repaired membranes compared with intact membranes and therefore determine whether membrane perforation constitutes a risk factor for implant survival. Material and methods This review was conducted according to PRISMA guidelines. Two independent reviewers conducted an electronic search for articles published between 2008 and April 30, 2020, in four databases: (1) The National Library of Medicine (MEDLINE/PubMed) via Ovid; (2) Web of Science (WOS); (3) SCOPUS; and (4) Cochrane Central Register of Controlled Trials (CENTRAL); also, a complementary handsearch was carried out. The Newcastle-Ottawa Quality Assessment Scale was used to assess the quality of evidence in the studies reviewed. Results Seven articles fulfilled the inclusion criteria and were analyzed. A total of 1598 sinus lift surgeries were included, allowing the placement of 3604 implants. A total of 1115 implants were placed under previously perforated and repaired membranes, obtaining a survival rate of 97.68%, while 2495 implants were placed below sinus membranes that were not damaged during surgery, obtaining a survival rate of 98.88%. The rate of Schneiderian membrane perforation shown in the systematic review was 30.6%. In the articles reviewed, the most widely used technique for repairing perforated membranes was collagen membrane repair. Conclusions Schneiderian membrane perforation during MFSA procedures with lateral approach is not a risk factor for dental implant survival (p=0.229; RR 0.977; 95% CI 0.941-1.015). The knowledge of the exact size of the membrane perforation is essential for deciding on the right treatment plan.

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.

scholarly journals Sinus Augmentation by Platelet-Rich Fibrin Alone: A Report of Two Cases with Histological Examinations

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Naofumi Aoki ◽  
Takeo Kanayama ◽  
Michinori Maeda ◽  
Koichiro Horii ◽  
Hironori Miyamoto ◽  
...  
Keyword(s):  
Tissue Sample ◽  
Lateral Sinus ◽  
Graft Material ◽  
Sinus Augmentation ◽  
Platelet Rich Fibrin ◽  
First Case ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
The Right

In sinus floor augmentation of an atrophic posterior maxilla, platelet-rich fibrin (PRF) has been used as a graft material. We herein report two cases with histological evaluations of PRF after the surgery. The first case was a 28-year-old female with an atrophic right posterior maxilla who was treated with sinus floor augmentation and simultaneous implant placement using PRF as the sole graft material in our hospital. Twenty-four months after surgery, the implant was unfortunately removed because of occlusal overloading by parafunctional habits. During implant replacement, a tissue sample was obtained from the site of augmentation with PRF and was evaluated histologically. The second case was a 58-year-old man with severe alveolar atrophy of the right maxilla who underwent lateral sinus augmentation using only PRF in a two-stage procedure in our hospital. Samples were obtained at the second-stage surgery and histological examinations were performed. As a result, new bone formation was confirmed histologically in both cases. Our findings show that the use of PRF as a graft material during sinus floor augmentation induces natural bone regeneration.

scholarly journals Management of Schneiderian Membrane Perforations during Sinus Augmentation Procedures: A Preliminary Comparison of Two Different Approaches

2019 ◽  
Vol 8 (9) ◽  
pp. 1491 ◽  
Author(s):  
Horia Mihail Barbu ◽  
Stefania Andrada Iancu ◽  
Iasmin Jarjour Mirea ◽  
Michele Davide Mignogna ◽  
Nachum Samet ◽  
...  
Keyword(s):  
Surgical Techniques ◽  
Lateral Approach ◽  
Collagen Membrane ◽  
Sinus Augmentation ◽  
Therapeutic Success ◽  
Schneiderian Membrane ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
Collagen Membranes ◽  
Sinus Membrane

Background: The aim of this study was to retrospectively analyze two different sealing techniques for sinus membrane perforations produced during sinus floor augmentation by a lateral approach. Methods: A total of 172 lateral-approach sinus floor augmentation surgeries were performed on 130 patients. Sixty-one membrane perforations (35%) were reported. Most of the perforations were caused by accidental membrane tearing and 16 (26%) were caused by deliberate incision for mucocele removal. In 31 perforation cases (51%), the Schneiderian membrane was sealed by suturing, while the remaining 30 cases (49%) were sealed using a low-resorption collagen membrane coverage. Results: Out of the 31 cases treated with a suture-sealing techniques, 26 (84%) were successful, presenting graft integration. Failure occurred in the other five (16%) cases. Out of the 30 perforations sealed with low-resorption collagen membranes, 28 (93%) presented successful graft integration, while two (7%) failed. Conclusions: Both surgical techniques yielded therapeutic success.

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.

Sign in / Sign up

Export Citation Format

Share Document