Maxillary Sinus Lift Research Articles

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

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.

Retrospective evaluation about morse taper versus external hexagon implants placed after maxillary sinus lift.

The aim of this study was to retrospectively evaluate the success and survival rate of implants with different types of prosthetic connections inserted in the posterior maxilla in native bone or in sinuses previously grafted with different biomaterials. A total of 310 implants inserted in 113 patients were evaluated, 87 of which were inserted in association with grafted maxillary sinuses (56 morse taper (MT) implants and 31 external hexagon (EH) implants) in 37 patients, and 223 implants were inserted in native bone areas (112 MT and 111 EH implants) in 76 patients. Peri-implant clinical analyses were performed (bleeding on probing, probing depth, clinical insertion level, peri-implant marginal level, and the presence of mobility or suppuration), and the radiographic bone level was evaluated. Two implants were lost, yielding a survival rate of 99.35%. The MT implants had lower probing depths and peri-implant bone levels than the EH implants in both grafted areas and native bone areas (P<0.05). No statistically significant differences in any parameter evaluated were found between implants inserted in native bone and those inserted in grafting areas. EH implants inserted in native bone areas showed higher peri-implantitis rates. It can be concluded that the MT implants connection reduce peri-implant bone loss, but implants inserted in maxillary sinuses previously grafted with osteoconductive biomaterials do not predispose patients to peri-implant bone loss.

Three-Dimensional Calculation of Sinus Augmentation Volume after Maxillary Sinus Floor Elevation

Abstract&#x0D; Objectives: This study aimed to calculate the volume of the maxillary sinus and grafted part of it with different modes of three-dimensional reconstruction software. &#x0D; Materials and Methods: This retrospective volumetric cone-beam computed tomography study was carried out on 21 patients/ 36 maxillary sinuses who had undergone maxillary sinus lift surgery using a lateral approach, between 2010 and 2016 at the Department Periodontology. All statistical analyses were performed by using the NCSS (Number Cruncher Statistical System, Kaysville, Utah, U.S.A.) software. P values 0.05). An occupied portion of the sinus cavity after lateral sinus floor elevation surgery was approximately 14.87 %. Furthermore, the volume through manual and automatical modes of the software do not affect the results (p&gt;0.05). The right and left sides of the maxillary sinus volumes were not different from each other. Gender and measuring mode was not found to be related to volumetric values of the maxillary sinus cavity. &#x0D; Conclusions: The grafted volume of the sinus cavity was defined as a safe volume in terms of serious complications during and after the surgery.

Assessment of maxillary sinus lifting procedure in the presence of chronic sinusitis, a retrospective comparative study

IntroductionChronic sinusitis can be considered a relative contraindication for sinus lifting procedure. However, its specific effects on bone height, infection and healing have not been as well investigated as its incidence as a post-operative complication. MethodsA retrospective comparative investigation was executed to evaluate the impact of chronic sinusitis on sinus lifting procedures regarding bone height, infection, and healing scores. Pre-operative and 6-month postoperative records (CBCT or CT and panoramic radiographs) of 40 patients who underwent sinus lifting procedure with graft and implant placement were split into two sets of 20 patients each; Group A is comprised of a patient with healthy sinus, whereas Group B includes patients with chronic sinusitis (identified as the presence of thickening of Schniederian membrane ≥ 2 mm, mucosal cyst, polyp or fluid level). Records of both groups were assessed for the difference in bone height of alveolar ridge between pre-operative radiograph and after six months postoperatively, and clinical notifications at the postoperative follow-up to report the healing and infection scores. ResultsStatistically, there was non-significant difference in mean bone height gain (p-value > 0.05) in comparison to control group mean bone height (8.84 ± 0.93). Also, there was non-significant variation in mean healing and infection scores. ConclusionAccording to the available data, chronic sinusitis presenting as a thickening in the Schneiderian membrane has no significant effect on postoperative bone height, healing, or infection score in patients undergoing sinus augmentation with simultaneous implant placement. Further research is needed to better evaluate the effect of chronic sinusitis and its current status as a relative contraindication for sinus lifting procedure.

Histological and immunohistochemical evaluation in patients who underwent maxillary sinus lifting surgery using autogenous or heterogenous bone. A clinical randomised trial

Objectives: This study evaluated, through histological and immunohistochemical analysis the bone formation and remodeling after a maxillary sinus lift. Material and methods: 25 patients from 41 to 65 years of age, with inadequate bone volume in the posterior maxillary region and remaining native bone less than or equal to 5 mm, as measured radiographically, were selected and underwent maxillary sinus lift surgery, through the open technique. They were distributed in 3 groups: A - particulate, autogenous bone, AB - autogenous and heterogeneous bone, and B - only heterogeneous bone. Six months after this intervention, the patients were submitted to a surgery for the installation of implants and concomitant removal of the grafted bone sample from the surgical site. Results: The histological evaluation showed bone formation in the three groups, with presence of mature bone. In groups B and AB, the presence of granules of the biomaterial surrounded by bone tissue was observed. A statistical analysis showed significant difference (ANOVA p=0,002), suggesting greater bone formation in the autogenous group. In an immunohistochemical evaluation, no statistically significant differences were observed in the comparison between the experimental groups (A, B and AB), as well as in the proteins analyzed (OC: p= 0.657; VEGF: p= 0,133; TRAP: p= 0.163). Conclusion: The use of Bio-Oss ®, whether or not associated to autogenous bone, for a maxillary sinus lift through the side window technique results in bone repair. A predictable amount of bone formation is attained when this osteoconductive biomaterial is used.

Maxillary sinus lift to enable one stage implant placement using Nanobone &amp; PRF with or without simvastatin.

Objective: Aim of this study was to evaluate the effect of using Nanobone & PRF with or without simvastatin on sinus lift and one stage implant placement. Material & Methods: 20 patients need sinus lift for implant placement in atrophied posterior maxilla were divided in two groups (group I: maxillary sinus left made by using synthetic bone substitute (NanoBone) & PRF Without simvastatin, while in group II using NanoBone & PRF with simvastatin. Results: Six months after surgery the mean of bone height gain in group I was 11.349 mm and the mean bone density was 297.8 Hounsfield units, while in group II the new bone height was 11.889 mm and the mean bone density was 314.3 Hounsfield units. During and after surgery there were no major complication and no implant failure. For endo sinus bone gain results were statistically significant in favour of group II (P<0.05). Conclusion: Both regenerative approaches showed significant improvements in clinical and radiographic results. However, adding simvastatin in combination with Nanobone & PRF showed better bone gain at 6 months in maxillary sinus lift and implant placement.

New Concept of Maxillary Sinus Lift through a New Implant Dedicated: “2s Implant”

The method which I created and use in my daily routine, it’s a Soft-Surgery approach. The access can be made through an operculum or a mucoperiosteal flap, followed by an invitation to the alveolar crestal bone with a drill using different size burs and to avoid the breaking of the floor of the sinus and tearing of the schneiderian membrane, is important to stop a few millimeters from it

Avaliação tomográfica e histológica da técnica de levantamento de seio maxilar e instalação de implantes dentários sem utilização de biomaterial com acompanhamento de 36 meses : Relato de caso

Este trabalho teve como objetivo avaliar quantitativo e qualitativamente a formação óssea periimplantar na cirurgia de elevação do seio maxilar sem utilização de biomaterial por meio de análise tomográfica e histológica. Paciente atendido no Instituto Latino Americano de Ensino e Pesquisa Odontológica (ILAPEO) para reabilitação da região posterior de maxila bilateral com escasso volume ósseo, foi realizado então levantamento de seio e instalação de implantes sem utilização de biomaterial. O acompanhamento pós operatório foi conduzido através de condições clínicas e tomográficas, no pós-operatório imediato, 3, 6, 9 e 36 meses. Aos 9 meses pós operatório, com o auxilio de uma trefina de 2 mm foi removido uma biópsia local para realização de uma análise histológica. Pode-se observar tomográficamente, que a maior densidade encontrada nos períodos avaliados, foi aos 36 meses (vestibular 1766,5 e palatina 1716,75), ou seja, após aplicação de carga funcional. A análise histológica mostrou que aos 9 meses a biópsia removida pela trefina era compostos de 52% de tecido ósseo e 48% de tecido conjuntivo, apresentando uma citoarquitetura óssea compatível de fato com osso maduro com poucas áreas de osso imaturo. Em conclusão, a técnica de elevação do seio maxilar com colocação imediata do implante, sem o uso de biomateriais quando bem indicada, pode ser realizada com sucesso obtendo ganho de volume ósseo periimplantar com qualidade.

Implicações clínicas do uso do L-PRF em cirurgias orais

The autologous blood concentrate L-PRF is responsible for the healing response in surgical procedures. However, studies results are inconclusive. Therefore, the aim of this article was to collect existing literature’s evidence concerning the clinical implications of L-PRF use in oral surgeries such as maxillary sinus lift, alveolus filling after dental extractions, and dental implants. Pubmed database was assessed and randomized clinical trials between 2006 and 2019 considering the clinical implications of L-PRF use in oral surgeries were included. A hundred and seventy articles were identified and fifteen were selected by eligibility. Although some studies had diverged, the great majority evidenced improved healing process, osseointegration and reduced post-operation pain because of L-PRF use, what was attributed to the morphological and biological characteristics of the fibrin membrane that has a three-dimensional matrix due to lack of anticoagulant during its formation, and stores growth factors, leukocytes, cytokines, and bone cells. In addition, this fibrin matrix attracts undifferentiated stem cells that will become osteoblasts. In conclusion, the greater cicatricial response, less postoperative discomfort for the patient, increased bone formation and implant-bone contact (BIC), and reduced osseointegration period are benefits associated with the L-PRF membrane use, that make L-PRF to be considered a good choice in the field of tissue regeneration.

A comparative evaluation of bone regeneration using mesenchymal stem cells versus blood coagulum in sinus augmentation procedures.

Objective:The present study evaluated the quality and quantity of new bone formation in the maxillary sinus lift procedures and stability of implants in posterior atrophic maxilla.Materials and Methods:This prospective randomized controlled split-mouth study included 20 patients (16 males and 4 females having a mean age of 36.7 years) having atrophic maxilla. They were divided randomly into two groups: Group A using mesenchymal stem cells and Group B into blood coagulum. They were radiographically evaluated using cone-beam computed tomography (CBCT) for residual bone height preoperatively and availability of new bone formation around implants, density, and stability of implants 6 months postoperatively.Results:The placement of dental implants in posterior maxilla is challenging due to rapid resorption of alveolar bone after extraction of teeth due to pneumatization of maxillary sinuses. In both the groups, more pain and swelling were observed in the 2nd postoperative day which gradually decreased over a period of 7 days. Membrane perforation occurs in only four cases (20%). A significant gain in alveolar bone height was observed in Group A (7.69 mm ± 2.5 mm) and Group B (9.32 mm ± 2 mm) after 6 months. On comparing both the groups, there is a similar significant increase in bone density in Hounsfield units postoperatively at various levels buccally and palatally. Total 40 sinuses were lifted and 42 implants were placed, respectively. All implants showed primary stability.Conclusions:Such findings provide a significant contribution in future perspective studies that the use of stem cells had the same success rate as blood coagulum.

Classification and Management for Safer and More Predictable Maxillary Sinus Lift Procedure

Classification and Management for Safer and More Predictable Maxillary Sinus Lift Procedure

Evaluation of the posterior superior alveolar artery canal by cone-beam computed tomography in a sample of the Egyptian population.

PurposeThis study was conducted to evaluate the accuracy of cone-beam computed tomography (CBCT) in detecting the posterior superior alveolar (PSA) artery canal in a sample of the Egyptian population.Materials and MethodsCBCT images of 600 maxillary sinuses of patients were examined for the presence or absence of the PSA artery along the lateral wall of the maxillary sinus, and for the diameter and type of the canal in relation to age and sex. The distances from the canal to the alveolar crest and sinus floor were also measured. Each canal was assessed to determine whether it was bifid.ResultsThe PSA artery canal could be detected in 92.0% of the sinuses. The mean distance from the inferior border of the PSA artery canal to the sinus floor was 8.2±2.2 mm (range, 3.2–13.6 mm) in males and 7.3±2.1 mm (range, 3.0–13.1 mm) in females. The mean distance from the inferior border of the PSA artery canal to the alveolar crest was 18.2±2.7 mm (range, 11.0–23.9 mm) in males and 17.4±2.3 mm (range, 10.8–23.5 mm) in females. The mean diameter of the PSA artery canal was larger in male subjects. The PSA artery canal was bifid in 8.7% of cases. The most frequently observed location of the PSA artery canal was intraosseous (82.2%).ConclusionCBCT was confirmed to be a valuable tool for evaluation and localization of the PSA artery before maxillary sinus lift surgery to avoid intraoperative bleeding.

Histological and Histomorphometric Analyses after Sinus Floor Augmentation with Different Grafting Materials

Homogeneous grafts from a bone bank, heterogeneous grafts and allow plastic grafts have already been studied and used for maxillary sinus elevation in order to reconstruct the bone for placement of dental implants. The present work aims to histologically assess bone neoformation from autogenous and heterogeneous (or xenogenous) bone grafts, in maxillary sinus lift surgery, an invasive technique. Six patients (total of 10 elevated maxillary sinuses) participated in the study with an alveolar bone remnant in the posterior region of the maxilla, less than 5mm, classification by Misch SA-4, evidenced through panoramic radiography. After a waiting period of tissue repair of 8 months, samples were collected and microscopic analysis was performed in 3 groups: autogenous group, Bio-Oss® group and Endobon® group. It was observed that the autogenous group has a statistically higher amount of bone matrix when compared to the other 2 groups. These did not differ from each other. The three types of grafts used promoted the expected new bone formation. Thus, one can choose any of the grafts evaluated to enable the installation of Osseointegrated implants and prosthetic rehabilitation in patients with the atrophic posterior maxilla.

Implants with a Laser-microgrooved Collar Placed in Grafted Posterior Maxillary Extraction Sockets and in Crestally Grafted Sinuses: a 5-Year Multicentre Retrospective Study.

ABSTRACTObjectivesThe aim of this retrospective multicentre cohort study was to compare clinical outcomes, soft tissues conditions and differences in marginal bone loss between implants with a laser-microgrooved collar placed in posterior maxillary extraction sockets grafted by 4 to 5 months, and in posterior maxillary pristine bone (spontaneously healed posterior maxillary extraction sockets) by means of osteotome-mediated sinus floor elevation, over a period of 5 years after functional loading.Material and MethodsPatients of Group 1 underwent extractions with sockets preservation using porcine-derived bone, covered with collagen membrane. Group 2 underwent extractions without socket preservation. Patients of Group 1 received implants in grafted sites, and Group 2 received implants in spontaneously healed bone using a maxillary sinus lift with crestal approach.ResultsOver the observation period, the overall clinical success rate in Group 1 and Group 2 was 98% and 100%, respectively, with no differences between the procedures and implants used. Cumulative radiographic marginal bone loss ranged from 0.03 to 0.39 mm after 60 months of functional loading. There were no statistically significant differences in marginal bone loss between short and standard-length implants placed in grafted extraction sockets and in pristine bone.ConclusionsShort and standard implants with a laser-microgrooved collar, placed in posterior maxillary extraction sockets grafted by 4 to 5 months, and in posterior maxillary pristine bone (spontaneously healed posterior maxillary extraction sockets) by means of osteotome-mediated sinus floor elevation, exhibited no statistical difference in success rate, clinical parameters and marginal bone loss.

Immediate implant placement after maxillary sinus lift using the side window technique: clinical case report

Objetivos: O objetivo deste caso clínico foi relatar uma reabilitação unitária da região posterior da maxila, e descrever a cirurgia de levantamento de seio maxilar através da técnica de janela lateral, com colocação imediata de implante. Métodos: A cirurgia de levantamento de seio foi realizada através da técnica de janela lateral, seguida da instalação imediata do implante e posterior confecção de prótese unitária aparafusada. Resultados: Foi observada a reabilitação do elemento dental perdido através do reestabelecimento do espaço ósseo por meio da cirurgia de levantamento de seio, permitindo assim a instalação do implante imediato e confecção da prótese final. Conclusões: Seguindo um planejamento sólido e meticuloso, mesmo em cristas com menos de 5 mm de espessura, a técnica de janela lateral pode ser usada de forma previsível com um resultado clínico e radiológico adequado, dando aos pacientes excelente estabilidade do material enxertado e excelentes resultados clínicos.

Levantamento de seio maxilar bilateral por duas técnicas diferentes com concomitante instalação de implantes: relato de caso

Esse artigo buscou demonstrar, através de um relato de caso clínico, a abordagem de levantamento de seio maxilar bilateral por duas diferentes técnicas, uma traumática via janela lateral e uma atraumática através da crista óssea, associadas à instalação de implantes osseointegrados. Paciente com 75 anos, gênero feminino procurou atendimento na clínica do Curso de Extensão em Implantodontia em uma universidade do Rio de Janeiro com quadro álgico em região de molares superiores. Após anamnese, exame clínico e análise da tomografia computadorizada, evidenciou-se extensa lesão de furca nos elementos 16 e 26, sendo indicada exodontia e reabilitação com implantes oseeointegrados. Ainda, devido à pouca altura óssea subantral, o levantamento de seio maxilar bilateral foi incluído ao plano de tratamento. No lado direito, foi realizada a técnica de Summers e no lado esquerdo a técnica da janela lateral associada ao uso de biomaterial sintético particulado e membrana de colágeno reabsorvível. A radiografia panorâmica de controle pós-cirúrgico demostrou o êxito das duas técnicas com adequada relação anatômica do enxerto e de ambosmplantes ao leito receptor. Assim, a cirurgia de elevação do seio maxilar com a concomitante instalação de implantes se mostrou um procedimento seguro, de boa previsibilidade e baixa taxa de complicações.

Brazilian dentists’ perceptions of using bone grafts: an inland survey

Pre-clinical assessments of bone substitute materials are frequent in the literature, but research papers about the clinical situation of bone graft use and consumer market acceptance are rare. The aim of this study was to evaluate the dental use of bone grafts according to the perception of dentists in the city of Sobral, Brazil. We interviewed 183 professionals and analyzed their professional data, knowledge of the subject, specific use, and opinions on cost-effectiveness and biosafety. Most of the respondents had 10 years’ or less experience in the profession, and lacked specialization though they had been familiar with the subject since they graduated. The most frequently mentioned compositions were ceramics, followed by composites. Only a quarter of the respondents had performed bone grafts, generally with up to 50 cases, with the most frequent applications being using simultaneously with a dental implant, fresh dental sockets and maxillary sinus lifting. Autogenous and xenogeneic grafts were more frequent than alloplastic and allogeneic; ceramics were the most frequently used composition, and the association of bone graft with membrane was more frequent than bone graft alone or associated with autologous fibrin. Professional and patient satisfaction was high, cost was considered moderate, and differences were found regarding patient participation in the choice and country of origin of the product. Bone grafts were used more often in the private than public service. Dentists stated that they follow the instructions. Inflammatory or infectious complications were found to be related to the frequency of the procedure performed and safety regarding the origin. Opinions were favorable regarding the use of grafts derived from animals and unfavorable to grafts derived from cadavers. Very few respondents were registered in human bone tissue banks. The good level of acceptance for dental use of bone grafts in a Brazilian inland city provides a promising scenario for the development of the sector.

Maxillary sinus lift response to platelet-rich plasma associated with autogenous bone, ceramic biphasic HA/\u03b2-TCP (70:30), or deproteinized bovine bone

BackgroundThis study evaluated the long-term effects of platelet-rich plasma (PRP) on bone formation and regeneration when associated with autogenous bone graft (AB), porous biphasic calcium phosphate (pBCP), or deproteinized bovine bone (DBB) in maxillary sinus augmentation (MSA) of rabbit.MethodsIn 54 rabbits, bilateral MSA procedure was performed and randomly one sinus was filled with 200 mm3 material plus blood clot (AB/clot, DBB/clot, and pBCP/clot) and other with the same graft plus PRP (AB/PRP, DBB/PRP, and pBCP/PRP). After 30, 60, and 180 days, microtomographic were performed to analyze the three-dimensional MSA volume and histomorphometric analyses for the percentage of bone and soft tissues ingrowth. Data were compared by two-way ANOVA and the means were compared by the Tukey test, at p < 0.05.ResultsThe percentage of pBCP and DBB were nearly unchanged throughout the whole period and bone formation occurred in the spaces between particles. The MSA volume filled with DBB and pBCP agglutinated with clot and PRP maintained constant during all experimental periods (147.2 mm3 and 154.9 mm3, respectively, p = 0.7377), and no significant changes in the new formatted bone and soft tissue were observed between treatments. In AB/clot and AB/PRP, the MSA volume was similar at 30 days (140.3 mm3 and 137.9 mm3, respectively), but a higher and gradual reduction was observed until 180 days. In the AB/PRP, this reduction was significantly higher (44.2%) than AB/clot (22.5%) (p = 0.01792). Histologically, the addition of PRP to AB accelerated the new bone formation/remodeling maintaining the percentage of new bone similar to AB/clot during all experimental volume (p = 0.6406), while the AB particles showed a higher resorption in AB/PRP than AB/clot until 60 days (mean of 7.8% and 15.1%, respectively, p = 0.0396).ConclusionThe association of PRP with the autogenous graft accelerates the process of bone formation/remodeling in MSA, but not had influence on the pBCP and DBB groups.

Vertical Bone Gain after Sinus Lift Procedures with Beta-Tricalcium Phosphate and Simultaneous Implant Placement-A Cross-Sectional Study.

Objectives: The objective of this cross-sectional study was to evaluate the vertical bone gain achieved after the sinus lift procedure with beta-tricalcium phosphate (β-TCP) used as a bone substitute and simultaneous implant placement. Methods: One hundred and twenty-eight sinus lift procedures (utilizing a synthetic ceramic containing 99.9% tricalcium phosphate as a bone substitute) and simultaneous implant placements were performed on 119 patients. The lateral window approach surgical protocol for maxillary sinus lift was performed on the patients. The implants were evaluated using cone-beam computed tomography (CBCT) at 6 months following placement. The vertical bone gain was considered a primary variable, while implant length, diameter, and location were considered secondary variables. Results: The ANOVA results showed no statistical difference in vertical bone gain with implant parameters like implant length, width, and position. Pearsons correlation revealed a statistically significant positive correlation with vertical bone gain and implant length and diameter. A further multivariate linear regression analysis was performed and it observed statistically significant associations between the variables in the study after adjusting for confounding factors. Conclusions: This study concluded that there was vertical bone gain with the usage of β-TCP in maxillary sinus lift surgical procedure with immediate implant placement and that implant variables like length and diameter had a significant influence on the average bone gain values. The implant position did not have a statistically significant influence but there was considerable variation in the bone gain between first, second premolar, and molar regions.

ПРОБЛЕМА РАЗВИТИЯ ВЕРХНЕЧЕЛЮСТНЫХ СИНУСИТОВ ПОСЛЕ ПРОВЕДЕНИЯ СИНУС-ЛИФТИНГА

Subject. In some clinical cases maxillary sinus lift is a nessesary surgery preparing for dental implantation in the distal parts of the upper jaw. However, despite the widespread using of this type of surgery in clinical practice, the percentage of postoperative complications leading to the development of odontogenic maxillary sinusitis after sinus-lifting surgery does not decrease from year to year. Among the complications of sinus lifting, the following main ones are distinguished: perforation of the maxillary sinus mucosa and nasal cavity; rejection of a previously installed dental implant; migration of the implant and/or bone material to the maxillary sinus; bleeding; acute maxillary sinusitis.&#x0D; The aim is to conduct a systematic analysis of domestic and foreign literature sources to determine the main factors of development of postoperative odontogenic sinusitis, as well as features of diagnosis and prevention of this complication. &#x0D; Methodology. The review of research allows us to consider the etiology of odontogenic maxillary sinusitis after sinus-lifting surgery and the pathogenesis of the disease, to draw conclusions about possible ways to prevent its development. &#x0D; Results. Odontogenic sinusitis that developed after the sinus-lifting operation is very common in clinical practice, despite the widespread use of this type of bone augmentation and proven methods of surgical intervention. The reason for this can be both anatomical prerequisites and iatrogenic factors, as well as insufficient diagnosis of pathologies of the paranasal sinuses in the preoperative period. &#x0D; Conclusions. The development of postoperative sinusitis can be avoided with careful planning of the operation, necessarily with computer tomography (preferably, cone-beam (dental) computed tomography, which is characterized by a relatively low load for optimal visualization of the maxillofacial tissues). Pathological changes in the sinus cavity and paranasal structures should be eliminated as planned before the sinus-lifting operation.