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.

RADIOLOGICAL CHANGES IN MAXILLARY SINUS MORPHOLOGY AFTER LATERAL SINUS FLOOR AUGMENTATION

2020 ◽  
Vol 74 (4) ◽  
pp. 1-5
Author(s):  
Oleksandr Shpachynskyi ◽  
Viacheslav Didkovskij ◽  
Andrii Kopchak
Keyword(s):  
Medical Center ◽  
Clinical Signs ◽  
Endoscopic Examination ◽  
Membrane Thickness ◽  
Bovine Bone ◽  
Lateral Sinus ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
Radiological Changes

Background: Restoration of the masticatory function in patients with edentulous posterior maxilla is often challenging due to the severe atrophy of the alveolar ridges and insufficient bone quantity for implant supported dentures. The purpose of this study was to analyze the change in Shneiderian membrane thickness after lateral sinus floor augmentation (LSFA) using cone beam computed tomography (CBCT). Methodology/Principal: LSFA procedures using different bovine bone materials with and withaut immediate implantation were performed at the Stomatological Medical Center of Bohomolets National Medical University in 87 patients, from 2016 to 2018. CBCT examination was performed before LSFA procedure in all patients, postoperative period: up to 1 month after surgery; and after 6 months, before implant placement or loading. Results: Postoperative CBCT performed in early postsurgical period demonstrated that the number of cases with type A decreased significantly from 86,67 to 26,75%. Type B radiological picture increased from 20,33% to 26,75 %. Type C was observed in 7,5 vs 41,73%. Type D and E were observed in 13.91 and 2.14%. The clinical signs of the acute sinusitis or specific complaints were recorded only in 2 cases. In 3 cases radiological findings resembled to F type. Conclusions: The minor radiologic changes in mucous morphology were observed preoperatively in 17.12% of patients who underwent LSFA procedures. The incidence of sinusitis consisted 19.26 % while the frequency of asymptomatic radiological changes was significantly higher. It consisted 68.48 in early and 47.1 % in late (6 months). As the differential diagnosis for such changes based only on clinical and radiological data is difficult, the obtained results prove the importance of preoperative endoscopic examination.

scholarly journals Surgeons’ Performance Determining the Amount of Graft Material for Sinus Floor Augmentation Using Tomography

2017 ◽  
Vol 28 (3) ◽  
pp. 385-390 ◽  
Author(s):  
Adriana Dibo Cruz ◽  
Guilherme Alvares Peixoto ◽  
Marcelo Freitas Aguiar ◽  
Gabriela Alessandra Cruz Galhardo Camargo ◽  
Nicolas Homs
Keyword(s):  
Maxillary Sinus ◽  
Diagnostic Tools ◽  
Graft Material ◽  
Convenience Sample ◽  
Computed Tomography Images ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation

Abstract This study aimed to assess the performance of surgeons in determining the amount of graft material required for maxillary sinus floor augmentation in a preoperative analysis using cone-beam computed tomography images. A convenience sample of 10 retrospective CBCT exams (i-CAT®) was selected. Scans of the posterior maxilla area with an absence of at least one tooth and residual alveolar bone with an up to 5 mm height were used. Templates (n=20) contained images of representative cross-sections in multiplanar view. Ten expert surgeons voluntarily participated as appraisers of the templates for grafting surgical planning of a 10 mm long implant. Appraisers could choose a better amount of graft material using scores: 0) when considered grafting unnecessary, 1) for 0.25 g in graft material, 2) for 0.50 g, 3) for 1.00 g and 4) for 1.50 g or more. Reliability of the response pattern was analyzed using Cronbach’s a. Wilcoxon and Mann-Whitney tests were performed to compare scores. Regression analysis was performed to evaluate whether the volume of sinuses (mm3) influenced the choose of scores. In the reliability analysis, all values were low and the score distribution was independent of the volume of the maxillary sinuses (p>0.05), which did not influence choosing the amount of graft material. Surgeons were unreliable to determine the best amount of graft material for the maxillary sinus floor augmentation using only CBCT images. Surgeons require auxiliary diagnostic tools to measure the volume associated to CBCT exams in order to perform better.

scholarly journals Sinus Floor Elevation via an Osteotome Technique without Biomaterials

2021 ◽  
Vol 18 (3) ◽  
pp. 1103
Author(s):  
Rodrigo Andrés-García ◽  
José Vicente Ríos-Santos ◽  
Mariano Herrero-Climent ◽  
Pedro Bullón ◽  
Javier Fernández-Farhall ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Treatment Time ◽  
Valsalva Maneuver ◽  
Primary Stability ◽  
Graft Material ◽  
Sinus Augmentation ◽  
Side Window ◽  
Posterior Maxilla ◽  
Augmentation Techniques ◽  
Sinus Floor

According to classic Hirschfeld studies, the first teeth to be lost are the first and second maxillary molars. After the teeth are extracted and the alveolar process is developed, the maxillary sinus is reabsorbed and pneumatized with a decrease in bone availability in the posterior sector of the maxilla. This process often creates the need to perform regeneration techniques for the placement of implants in this area due to the low availability of bone. The most frequently used and documented technique for the elevation of the sinus maxillary floor is elevation by the side window, as proposed by Tatum. In 1994, Summers proposed a technique that allowed the elevation of the sinus floor from a crestal access using an instrument called an osteotome, as well as the placement of the implant in the same surgical act. The aimed of the study was to evaluate the survival of 32 implants placed in posterior maxilla with bone availability less than 5 mm performing a sinus lift augmentation technique with osteotome without biomaterials. The results of this study show a survival rate of 100% for 32 implants placed in situations with an initial bone availability of 2 to 5 mm without the use of graft material. The infra-drilling technique used offers an increase in the primary stability of implants that allows adequate osteointegration Implants placed were charged at 12 weeks. In all cases, spontaneous bone formation was observed, even in cases where a positive Valsalva maneuver was observed. This proposed technique reduces treatment time and the need for more invasive maxillary sinus augmentation techniques.

Sinus Augmentation With Platelet-Rich Fibrin in Combination With Bovine Bone Graft Versus Bovine Bone Graft in Combination With Collagen Membrane

2015 ◽  
Vol 41 (5) ◽  
pp. 586-595 ◽  
Author(s):  
Nilufer Bolukbasi ◽  
Selim Ersanlı ◽  
Nurullah Keklikoglu ◽  
Cansu Basegmez ◽  
Tayfun Ozdemir
Keyword(s):  
Bone Graft ◽  
Test Group ◽  
Control Group ◽  
Collagen Membrane ◽  
Bovine Bone ◽  
Graft Material ◽  
Sinus Augmentation ◽  
Platelet Rich Fibrin ◽  
Bone Graft Material ◽  
Sinus Floor

The purpose of this study was to compare the efficacy between the use of bovine bone graft material and platelet-rich fibrin (PRF) mixture (test group) and bovine bone graft material and collagen membrane combination (control group) in 2-stage maxillary sinus augmentation. According to specific inclusion/exclusion criteria, patients treated between 2008 and 2012 were selected. Panoramic radiographs were used for radiologic assessments. To evaluate the relationship between sinus-graft height and each implant, the bone level (BL) was divided by implant length (IL). To evaluate the change in the height of grafted sinus, the grafted sinus floor above the lowest part of the original sinus height (GSH) was divided by the original sinus height (OSH). Samples taken during implant surgery were used for histologic and histomorphometric analyses. Twenty-five patients, 32 augmentation surgeries, and 66 one-stage implants were included in the study. No implant loss or complication was observed in either group. There were no statistical differences according to new bone formation (P = .61) and biomaterial remnant (P = .87). During the evaluation period, the test group showed statistically less change in the BL/IL ratio (P = .022). The difference of GSH/OSH ratio was found to be insignificant between groups (P = .093). It was observed that the grafted sinus covering the implant apex and sinus floor was above the original sinus height in both groups. It may be concluded from this study that both combinations can be successfully used for sinus augmentation. Further studies evaluating different graft materials and PRF combinations in the early phases of healing would be beneficial.

Radiological changes in maxillary sinus morphology after lateral sinus floor augmentation

2021 ◽  
Vol 75 (2) ◽  
pp. 1-8
Author(s):  
Oleksandr Shpachynskyi ◽  
Vyacheslav Didkovskyi ◽  
Andrii Kopchak
Keyword(s):  
Maxillary Sinus ◽  
Mucous Membrane ◽  
Clinical Signs ◽  
Membrane Thickness ◽  
Lateral Sinus ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
Radiological Changes ◽  
Mucosal Thickening

<b>Background:</b> Restoration of the masticatory function in patients with edentulous posterior maxilla is often challenging due to the severe atrophy of the alveolar ridges and proximity of the maxillary sinus, resulting in insufficient bone quantity for implant-supported dentures. <br><b>Aim:</b> The purpose of this study was to analyze the changes in Schneiderian membrane thickness after lateral sinus floor augmentation (LSFA) using cone beam computed tomography (CBCT). <br><b>Material and methods:</b> W LSFA procedures using different bone grafting materials were performed in 87 patients, operated on in two clinical institutions from 2016 to 2018. CBCT examination was performed in all patients before the LSFA procedure, at 1 month after surgery, and after 6 months, before implant placement or loading. <br><b>Results:</b> Minor r adiological changes in mucous membrane morphology were observed preoperatively in 17.1% of patients. Postoperative CBCT in the early postsurgical period demonstrated that the number of intact non-specific sinuses decreased significantly, i.e. from 86.7% to 26.7%. The number of cases with local hypertrophia of the mucous membrane increased from 20.3% to 26.7%. Mucosal thickening was observed in 41.7% vs 7.5%. The number of intact sinuses increased to 57.8%. The number of cases with local membrane hypertrophia also increased – to 37.4%. The number of cases with mucosal thickening or fluid accumulation decreased significantly to 11.8 and 5.3% respectively. In 2 cases the development of chronic sinusitis required secondary surgeries. <br><b>Conclusion:</b> The present retrospective study revealed that minor radiological changes in the morphology of the maxillary sinus mucosa were observed preoperatively in 17.1% of patients who underwent LSFA procedures. In the early and late postoperative period their frequency increased to 68.5% and 47.1%, r espectively. However, the clinical signs o f sinusitis developed only in 19.26% of patients. No significant correlations were found between the frequency and severity of postoperative radiological changes and residual bone height, sinus anatomy, initial state of the mucous membrane and type of the grafting material.

Effect of a Rapidly Resorbable Calcium Alkali Phosphate Bone Grafting Material on Osteogenesis after Sinus Floor Augmentation in Humans

2017 ◽  
Vol 758 ◽  
pp. 239-244 ◽  
Author(s):  
Christine Knabe ◽  
Tom Knauf ◽  
Doaa Adel-Khattab ◽  
Barbara Peleska ◽  
Wolf Dietrich Hübner ◽  
...  
Keyword(s):  
Bone Formation ◽  
Bone Substitutes ◽  
Apical Region ◽  
Graft Material ◽  
Matrix Mineralization ◽  
Native Bone ◽  
Ridge Augmentation ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Sinus Floor

Sinus floor augmentation (SFA) has become a well-established pre-implantology procedure for alveolar ridge augmentation of the posterior maxilla. Using bioceramic bone substitutes avoids second-site surgery for autograft harvesting. Compared to the bone substitutes which are currently clinically available, there is a significant need for bone substitutes which degrade more rapidly, but still stimulate osteogenesis at the same time. This has led to the development of bioactive, rapidly resorbable calcium alkali orthophosphate (CAOP) materials, which have a greater solubility than tricalcium phosphate. In this study the biodegradability and effect of a silica containing CAOP (Si-CAOP) on osteogenesis was evaluated in human biopsies sampled 6 months after SFA and compared to that of TCP utilizing hard tissue histology, histomorphometry and immunohistochemical analysis of osteogenic marker expression. Both materials facilitated bone formation and matrix mineralization, which were still actively progressing from the sinus floor in an apical direction 6 months after SFA. With the Si-CAOP grafting material however, bone formation, the bone-biomaterial-contact, i.e. bone-bonding, and particle degradation were significantly greater compared to TCP in the apical region of the biopsies, i.e. at the largest distance from the native bone of the sinus floor. This was accompanied by greater expression of Col I, BSP and OC in the newly formed bone tissue in the Si-CAP samples compared to TCP. Six months after implantation Si-CAOP facilitated greater bone formation and biodegradability than the TCP graft material, whose excellent osteoconductive properties have been widely documented. Consequently, Si-CAOP can be regarded as excellent grafting material for SFA in a clinical setting.

Comparison of Conventional Transcrestal Sinus Lift and Ultrasound-Enhanced Transcrestal Hydrodynamic Cavitational Sinus Lift for the Filling of Subantral Space: A Human Cadaver Study

2015 ◽  
Vol 41 (6) ◽  
pp. 657-661 ◽  
Author(s):  
Sylvain Catros ◽  
Michel Montaudon ◽  
Christophe Bou ◽  
Reynald Da Costa Noble ◽  
Jean Christophe Fricain ◽  
...  
Keyword(s):  
Good Alternative ◽  
Human Cadaver ◽  
Sinus Lift ◽  
Sinus Augmentation ◽  
Sinus Floor Elevation ◽  
Fresh Cadaver ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
Maxillary Sinuses

The implant-supported prosthetic rehabilitation of the posterior maxilla may require sinus-grafting procedures due to poor quality and low volume of bone. This can be accomplished using a “lateral window” sinus augmentation or with an osteotome sinus floor elevation (OSFE). The hydrodynamic ultrasonic cavitational sinus lift (HUCSL) (Intralift) is derived from the osteotome technique and allows the reduction of some of the traumatic effects of the osteotome technique. The aim of this study was to compare OSFE and the HUCSL procedures on fresh human cadaver heads. Primary outcomes were the height and width of the grafting area in the sinus floor area. Eighty-four maxillary sinuses were selected. On each fresh cadaver head, 2 sinus lifts were done using OSFE and HUCSL in the maxillary sinuses. Computerized tomography scans were performed on each head before and after the surgeries. Measurements were done on radiologic pictures using dedicated software, and the integrity of the sinus membrane was observed after dissecting the maxillae. The use of HUCSL resulted in a significantly higher sinus floor augmentation in the mesio-distal and bucco-palatal direction compared with the osteotome technique (P &lt; .001). There was no correlation between mesio-distal and bucco-palatal diameters of sinus floor augmentation when only the osteotome protocol was considered (r = 0.27 and P = .08). In contrast, the mesio-distal and bucco-palatal diameters of floor augmentation were correlated when the HUCSL protocol was considered (r = 0.79, P &lt; .001). HUCSL represents a good alternative method for sinus floor elevation.

scholarly journals Coalescence of inter: Osteotomy bone graft material inserted via separate transcrestal sinus osteotomies: A case report and concise review of the literature

2014 ◽  
Vol 08 (04) ◽  
pp. 553-558 ◽  
Author(s):  
Shane J. J. McCrea
Keyword(s):  
Large Scale ◽  
Progressive Increase ◽  
Bovine Bone ◽  
Graft Material ◽  
Sinus Augmentation ◽  
Radiographic Outcomes ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
Osteotome Sinus Floor Elevation ◽  
Window Approach

ABSTRACTWhen multiple implants are to be placed, and a pneumatized sinus exists, the published reports suggest that the lateral window approach (LWA) is favored for sinus floor augmentation. Simultaneously, if a transcrestal sinus floor augmentation has been carried out (bone-added osteotome sinus floor elevation), the reports are restricted to single implant placement at any site. The aim of this study was to evaluate the clinical and radiographic outcomes at adjacent transcrestal sinus augmentation grafts using deproteinized bovine bone material, with the immediate placement of submerged adjacent implants, and so determining the fate of the graft material. The progressive loss of the inter-implant graft is reported for the LWA Technique. However, this novel coalescence method has shown a progressive increase in the inter-implant graft region, thus inferring a positive bony regeneration and remodelling at the region. These results indicate that the carrying out of a large scale study is warranted to confirm the efficacy of this technique.

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.

Axial Triangle of the Maxillary Sinus, and its Surgical Implication With the Position of Maxillary Sinus Septa During Sinus Floor Elevation: A CBCT Analysis

2020 ◽  
Vol 46 (4) ◽  
pp. 415-422
Author(s):  
Junho Jung ◽  
Jung Soo Park ◽  
Seoung-Jin Hong ◽  
Gyu-Tae Kim ◽  
Yong-Dae Kwon
Keyword(s):  
Maxillary Sinus ◽  
Surgical Techniques ◽  
Lateral Sinus ◽  
Sinus Floor Elevation ◽  
Second Molar ◽  
Sinus Wall ◽  
Posterior Maxilla ◽  
Significant Difference ◽  
Sinus Floor ◽  
Molar Region

The aim of this study was to measure the convexity of the lateral wall of the maxillary (Mx) sinus and identify the locational distribution of antral septa in relation to the zygomaticomaxillary buttress (ZMB), in order to suggest another anatomical consideration and surgical modification of sinus floor elevation procedures. This study was designed as a cross-sectional study, and a total of 134 patients and 161 sinuses containing edentulous alveolar ridges were analyzed. The angle between the anterior and lateral walls of the Mx sinus (lateral sinus angle [LSA]), and the angle between the midpalatal line and the anterior sinus wall (anterior sinus angle [ASA]) were measured. Mean LSAs and ASAs were 105.9° ± 9.86° and 58.4° ± 6.43°, respectively. No significant difference between left and right sides was found (LSA, P = .420; right = 105.5° ± 9.27°; left = 105.5° ± 9.27° and ASA, P = .564; right = 57.9° ± 6.80°; left = 58.8° ± 6.02°). The prevalence of septa was 37.3%, and it was most frequently noted in the second molar region (32.8%), followed by the first molar (20.9%), retromolar (16.4%), and second premolar regions (14.9%). Septa were most frequently located posterior to the ZMB (49.2%), while ZMB was mostly located in the first molar region (66.4%). Narrow LSAs may complicate the surgical approach to the posterior maxilla, especially when sinus elevation should be used in the second molar region. Considering the occasional presence of antral septa, membrane elevation may be complicated when a septum is encountered during the procedure. These results suggest that 3-dimensional examination of the convexity of the Mx sinus should be performed preoperatively to choose proper surgical techniques and minimize surgical complications.

Sign in / Sign up

Export Citation Format

Share Document