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Zamure-Damberga L, Radzins O, Salms G, Zolovs M, Bokvalde Z, Neimane L. Long-Term Volumetric Stability of Maxillary Sinus Floor Augmentation Using a Xenograft Bone Substitute and Its Combination with Autologous Bone: A 6+ Year Retrospective Follow-Up Study Using Cone Beam Computed Tomography. Dent J (Basel) 2024; 12:121. [PMID: 38786519 PMCID: PMC11119141 DOI: 10.3390/dj12050121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/29/2024] [Accepted: 04/19/2024] [Indexed: 05/25/2024] Open
Abstract
Deproteinised bovine bone (DBB) is widely used as bone substitute in maxillary sinus floor augmentation (MSFA) surgery. No previous studies have shown the long-term volumetric changes in the augmented bone when using DBB. The selected patients had MFSA performed using a lateral window technique and a xenograft, alone or in combination with the patient's autologous bone from the mandible. Cone beam computed tomography (CBCT) images were used to compare the volumetric changes in the augmented bone for patients over a period of 6 or more years. No significant bone reduction was seen in the augmented bone region when comparing MSFA after 7 months and 6 or more years after dental implantation.
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Affiliation(s)
- Liene Zamure-Damberga
- Department of Conservative Dentistry and Oral Health, Riga Stradins University, LV-1007 Riga, Latvia; (O.R.); (Z.B.); (L.N.)
- RSU Institute of Stomatology, LV-1007 Riga, Latvia;
| | - Oskars Radzins
- Department of Conservative Dentistry and Oral Health, Riga Stradins University, LV-1007 Riga, Latvia; (O.R.); (Z.B.); (L.N.)
- RSU Institute of Stomatology, LV-1007 Riga, Latvia;
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, LV-1073 Riga, Latvia
| | - Girts Salms
- RSU Institute of Stomatology, LV-1007 Riga, Latvia;
- Department of Oral and Maxillofacial Surgery, Riga Stradins University, LV-1007 Riga, Latvia
| | - Maksims Zolovs
- Statistics Unit, Riga Stradins University, LV-1048 Riga, Latvia;
- Institute of Life Sciences and Technology, Daugavpils University, LV-5401 Daugavpils, Latvia
| | - Zanda Bokvalde
- Department of Conservative Dentistry and Oral Health, Riga Stradins University, LV-1007 Riga, Latvia; (O.R.); (Z.B.); (L.N.)
- RSU Institute of Stomatology, LV-1007 Riga, Latvia;
| | - Laura Neimane
- Department of Conservative Dentistry and Oral Health, Riga Stradins University, LV-1007 Riga, Latvia; (O.R.); (Z.B.); (L.N.)
- RSU Institute of Stomatology, LV-1007 Riga, Latvia;
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Survival Rates of Dental Implants in Autogenous and Allogeneic Bone Blocks: A Systematic Review. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57121388. [PMID: 34946333 PMCID: PMC8705565 DOI: 10.3390/medicina57121388] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/11/2021] [Accepted: 12/14/2021] [Indexed: 12/17/2022]
Abstract
Background and Objectives: Preliminary studies emphasize the similar performance of autogenous bone blocks (AUBBs) and allogeneic bone blocks (ALBBs) in pre-implant surgery; however, most of these studies include limited subjects or hold a low level of evidence. The purpose of this review is to test the hypothesis of indifferent implant survival rates (ISRs) in AUBB and ALBB and determine the impact of various material-, surgery- and patient-related confounders and predictors. Materials and Methods: The national library of medicine (MEDLINE), Excerpta Medica database (EMBASE) and Cochrane Central Register of Controlled Trials (CENTRAL) were screened for studies reporting the ISRs of implants placed in AUBB and ALBB with ≥10 participants followed for ≥12 months from January 1995 to November 2021. The review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The risk of bias was assessed via several scoring tools, dependent on the study design. Means of sub-entities were presented as violin plots. Results: An electronic data search resulted in the identification of 9233 articles, of which 100 were included in the quantitative analysis. No significant difference (p = 0.54) was found between the ISR of AUBB (96.23 ± 5.27%; range: 75% to 100%; 2195 subjects, 6861 implants) and that of ALBB (97.66 ± 2.68%; range: 90.1% to 100%; 1202 subjects, 3434 implants). The ISR in AUBB was increased in blocks from intraoral as compared to extraoral donor sites (p = 0.0003), partially edentulous as compared to totally edentulous (p = 0.0002), as well as in patients younger than 45 as compared to those older (p = 0.044), cortical as compared to cortico-cancellous blocks (p = 0.005) and in delayed implantations within three months as compared to immediate implantations (p = 0.018). The ISR of ALBB was significantly increased in processed as compared to fresh-frozen ALBB (p = 0.004), but also in horizontal as compared to vertical augmentations (p = 0.009). Conclusions: The present findings widely emphasize the feasibility of achieving similar ISRs with AUBB and ALBB applied for pre-implant bone grafting. ISRs were negatively affected in sub-entities linked to more extensive augmentation procedures such as bone donor site and dentition status. The inclusion and pooling of literature with a low level of evidence, the absence of randomized controlled clinical trials (RCTs) comparing AUBB and ALBB and the limited count of comparative studies with short follow-ups increases the risk of bias and complicates data interpretation. Consequently, further long-term comparative studies are needed.
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Barros-Filho LA, de Oliveira GJ, Barros LA, Marcantonio E. Retrospective evaluation about morse taper versus external hexagon implants placed after maxillary sinus lift. Minerva Dent Oral Sci 2021; 71:10-15. [PMID: 34132507 DOI: 10.23736/s2724-6329.21.04533-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The objective 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. METHODS 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. RESULTS 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 periimplantitis rates. CONCLUSIONS It can be concluded that the MT implants connection reduce periimplant bone loss, but implants inserted in maxillary sinuses previously grafted with osteoconductive biomaterials do not predispose patients to peri-implant bone loss.
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Affiliation(s)
- Luiz A Barros-Filho
- Department of Diagnosis and Surgery, Univ. Est. Paul. - UNESP, Araraquara, Brazil
| | - Guilherme J de Oliveira
- Department of Periodontology/Implantology, Dental School, Federal University of Uberlândia - UFU, Uberlândia, Brazil
| | - Luiz A Barros
- Department of Diagnosis and Surgery, Univ. Est. Paul. - UNESP, Araraquara, Brazil
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery, Univ. Est. Paul. - UNESP, Araraquara, Brazil -
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Collagenated Porcine Heterologous Bone Grafts: Histomorphometric Evaluation of Bone Formation Using Different Physical Forms in a Rabbit Cancellous Bone Model. Molecules 2021; 26:molecules26051339. [PMID: 33801547 PMCID: PMC7958959 DOI: 10.3390/molecules26051339] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/18/2021] [Accepted: 02/25/2021] [Indexed: 12/16/2022] Open
Abstract
Collagenated porcine-derived bone graft materials exhibit osteoconductive properties and the development of different formulations intends to enhance bone regeneration. This study aims to evaluate bone healing in a rabbit cancellous bone defect in response to grafting with different physicochemical forms of heterologous porcine bone. Twenty-six adult male New Zealand White rabbits received two critical size femoral bone defects per animal (n = 52), each randomly assigned to one of the five tested materials (Apatos, Gen-Os, mp3, Putty, and Gel 40). Animals were sacrificed at 15- and 30-days post-surgery. Qualitative and quantitative (new bone, particle and connective tissue percentages) histological analyses were performed. Histomorphometry showed statistically significant differences in all evaluated parameters between mp3 and both Putty and Gel 40 groups, regardless of the timepoint (p < 0.05). Moreover, statistical differences were observed between Apatos and both Putty (p = 0.014) and Gel 40 (p = 0.007) groups, at 30 days, in regard to particle percentage. Within each group, regarding new bone formation, mp3 showed significant differences (p = 0.028) between 15 (40.93 ± 3.49%) and 30 (52.49 ± 11.04%) days. Additionally, intragroup analysis concerning the percentage of particles revealed a significant reduction in particle occupied area from 15 to 30 days in mp3 and Gen-Os groups (p = 0.009). All mp3, Gen-Os and Apatos exhibited promising results in terms of new bone formation, thus presenting suitable alternatives to be used in bone regeneration.
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Stricker A, Jacobs R, Maes F, Fluegge T, Vach K, Fleiner J. Resorption of retromolar bone grafts after alveolar ridge augmentation-volumetric changes after 12 months assessed by CBCT analysis. Int J Implant Dent 2021; 7:7. [PMID: 33474648 PMCID: PMC7817723 DOI: 10.1186/s40729-020-00285-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 12/28/2020] [Indexed: 11/15/2022] Open
Abstract
In this pilot study, a volumetric analysis of retromolar onlay bone grafts over a period of 12 months was conducted, using repeated CBCT imaging combined with automated image registration. Eleven patients being treated with 16 bone grafts taken from the retromolar area were examined by CBCT scanning prior to bone augmentation (T0), immediately after bone augmentation (T1) and after a healing time of 12 months after augmentation (T2). Graft volumes were measured at each time point after automated image registration of consecutive CBCT scans. The mean volume of the augmented site was 372.2 ± 179.4 mm3. Resorption relative to the original augmented volume was 43.7% ± 19.0% after 12 months. Three-dimensional graft resorption could be precisely depicted by the use of automated image registration for CBCT data over a period of 12 months and demonstrated extensive volumetric changes of bone grafts taken from the ascending ramus of the mandible. Graft resorption and continuous bony remodeling of the grafted site before and after implant insertion have to be carefully considered by the clinician.
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Affiliation(s)
- Andres Stricker
- Center of Implantology, Periodontology and 3D Head-and-Neck Imaging, Konstanz, Germany. .,Department of Oral and Maxillofacial Surgery, Medical Center, University of Freiburg, Freiburg, Germany. .,Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Reinhilde Jacobs
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven, Leuven, Belgium.,Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.,Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Frederik Maes
- ESAT/PSI & Medical Imaging Research Center, Faculty of Engineering Sciences, University of Leuven, Leuven, Belgium
| | - Tabea Fluegge
- Department of Oral and Maxillofacial Surgery, Charité University of Medicine Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Kirstin Vach
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Jonathan Fleiner
- Center of Implantology, Periodontology and 3D Head-and-Neck Imaging, Konstanz, Germany.,OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven, Leuven, Belgium
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Gonzalez-Gonzalez I, deLlanos-Lanchares H, Brizuela-Velasco A, Alvarez-Riesgo JA, Llorente-Pendas S, Herrero-Climent M, Alvarez-Arenal A. Complications of Fixed Full-Arch Implant-Supported Metal-Ceramic Prostheses. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17124250. [PMID: 32545913 PMCID: PMC7345239 DOI: 10.3390/ijerph17124250] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 12/19/2022]
Abstract
We aimed to assess the biological and mechanical-technical complications and survival rate of implants of full-arch metal-ceramic prostheses, during five years of follow-up. 558 implants (of three different brands) retaining 80 full-arch metal-ceramic prostheses were placed in 65 patients, all of whom were examined annually for biological and mechanical-technical complications during the five years of follow-up. Descriptive statistics and univariate logistic regression were calculated. The cumulative survival rate of the implants was 99.8%, and 98.8% prosthesis-based. Mucositis was the most frequent of the biological complications and peri-implantitis was recorded as 13.8% at restoration-level, 16.9% at patient level and 2.0% at implant level. An implant length greater than 10 mm was shown to be a protective factor against biological complications. The mechanical-technical complications were associated with implant diameter, abutment/implant connection and retention system. Loss of screw access filling was the most frequent prosthetic complication, followed by the fracture of the porcelain. Full-arch metal-ceramic prostheses show a high prevalence of implant and prosthesis survival, with few biological and mechanical-technical complications.
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Affiliation(s)
- Ignacio Gonzalez-Gonzalez
- Department of Prosthodontics and Occlusion, School of Dentistry, University of Oviedo, C/. Catedratico Serrano s/n., 33006 Oviedo, Spain; (I.G.-G.); (H.d.-L.); (J.-A.A.-R.); (A.A.-A.)
| | - Hector deLlanos-Lanchares
- Department of Prosthodontics and Occlusion, School of Dentistry, University of Oviedo, C/. Catedratico Serrano s/n., 33006 Oviedo, Spain; (I.G.-G.); (H.d.-L.); (J.-A.A.-R.); (A.A.-A.)
| | - Aritza Brizuela-Velasco
- Department of Prosthodontics and Occlusion, School of Dentistry, University of Oviedo, C/. Catedratico Serrano s/n., 33006 Oviedo, Spain; (I.G.-G.); (H.d.-L.); (J.-A.A.-R.); (A.A.-A.)
- Correspondence: ; Tel.: +34-661-842-026
| | - Jose-Antonio Alvarez-Riesgo
- Department of Prosthodontics and Occlusion, School of Dentistry, University of Oviedo, C/. Catedratico Serrano s/n., 33006 Oviedo, Spain; (I.G.-G.); (H.d.-L.); (J.-A.A.-R.); (A.A.-A.)
| | | | | | - Angel Alvarez-Arenal
- Department of Prosthodontics and Occlusion, School of Dentistry, University of Oviedo, C/. Catedratico Serrano s/n., 33006 Oviedo, Spain; (I.G.-G.); (H.d.-L.); (J.-A.A.-R.); (A.A.-A.)
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Marconcini S, Covani U, Giammarinaro E, Velasco-Ortega E, De Santis D, Alfonsi F, Barone A. Clinical Success of Dental Implants Placed in Posterior Mandible Augmented With Interpositional Block Graft: 3-Year Results From a Prospective Cohort Clinical Study. J Oral Maxillofac Surg 2018; 77:289-298. [PMID: 30712534 DOI: 10.1016/j.joms.2018.09.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 09/25/2018] [Accepted: 09/25/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE The purpose of the present cohort study was to investigate the 3-year efficacy and clinical performance of implant-supported rehabilitations in posterior mandibles augmented with the sandwich osteotomy technique. MATERIALS AND METHODS Twenty-three partially edentulous patients who developed atrophy of the posterior mandible (residual ridge height, 3 to 7 mm) were treated (32 surgical sites) with vertical bone augmentation using interpositional equine cancellous bone blocks and porcine corticocancellous bone particulate. All implants were placed 4 months after augmentation and were loaded with fixed dental prostheses. One side per patient was selected and followed for 3 years, and the patient was the unit of analysis. Linear radiographic vertical bone gain and peri-implant marginal bone loss were assessed; secondary outcomes-complication rates after surgery, prosthesis and implant failure rates, width of keratinized mucosa, and patient satisfaction-were evaluated. RESULTS All patients reported postoperative paresthesia that resolved over a period of 2 months after the augmentation procedure. The mean vertical bone gain was 5.6 mm after 4 months. Ninety-one dental implants were positioned into the augmented areas. The global 3-year survival rate was 95.5%. The mean peri-implant marginal bone loss around implants was 1.06 ± 0.37 mm 3 years after loading, whereas the width of keratinized mucosa had an overall increase of 0.39 ± 0.36 mm. CONCLUSION The results of the present 3-year study suggested high success rates for implants placed in areas augmented with the osteotomy sandwich technique. This surgical approach could be helpful in the presence of a low residual vertical height in the posterior mandible before implant placement.
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Affiliation(s)
- Simone Marconcini
- Researcher, Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy.
| | - Ugo Covani
- Director, Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore; Full Professor, Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Enrica Giammarinaro
- Fellow Researcher, Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, Italy
| | | | - Daniele De Santis
- Researcher, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Fortunato Alfonsi
- Professor, Department of Surgical Sciences, Dental and Maxillofacial Department, University of Verona, Verona, Italy
| | - Antonio Barone
- Chairman and Professor, Unit of Oral Surgery and Implantology, Department of Oral and Maxillofacial Surgery, Geneva University Hospital, University of Geneva, Geneva, Switzerland
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Toti P, Marchionni S, Menchini-Fabris GB, Marconcini S, Covani U, Barone A. Surgical techniques used in the rehabilitation of partially edentulous patients with atrophic posterior mandibles: A systematic review and meta-analysis of randomized controlled clinical trials. J Craniomaxillofac Surg 2017; 45:1236-1245. [DOI: 10.1016/j.jcms.2017.04.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 02/13/2017] [Accepted: 04/21/2017] [Indexed: 11/30/2022] Open
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Nickenig HJ, Wichmann M, Zöller JE, Grandoch A, Eitner S, Kreppel M. Three-dimensional cone beam computed tomography analysis of maxillary sinus and alveolar bone anatomy in the restorative axis of dental implants using radiopaque drill guides. Int J Oral Maxillofac Surg 2016; 45:1485-1489. [PMID: 27614906 DOI: 10.1016/j.ijom.2016.08.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 07/07/2016] [Accepted: 08/23/2016] [Indexed: 10/21/2022]
Abstract
The objectives were to assess the sinus anatomy and alveolar ridge dimensions and to identify clinical factors and morphological relationships that may predict the characteristics of the sinus anatomy. A total 336 edentulous molar and 168 edentulous premolar regions were analyzed. The mediolateral maxillary sinus (5mm and 10mm above alveolar bone), lateral maxillary sinus wall, ostium height, and alveolar ridges were measured. Measurement regions were defined by radiopaque simulation of the restoration goal. Mean molar mediolateral dimensions were >10mm: first molar, 11.8mm (range 3.8-21.1mm); second molar, 12.2mm (range 7.9-20.1mm). The extent of the sinus differed significantly between premolars and molars (P<0.001). The first molar region had the highest mean value for the lateral sinus wall (2.4mm, range 0.2-7.9mm) and the greatest distance between the alveolar crest and simulated restorative goal (8.1mm, range 1.1-16.3mm). Septum prevalence was 46% in the molar region and 27% in the premolar region. A lower alveolar ridge height was associated with a wider transverse extent of maxillary sinus and consequently longer distances between the crest and restorative goal. Systematic three-dimensional analysis of the maxillary sinus yields precise preoperative information about sinus configurations. There were significant variations and relationships among characteristics of the maxillary sinus, ridge, and the restorative goal.
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Affiliation(s)
- H-J Nickenig
- Department of Oral and Maxillofacial Plastic Surgery and Interdisciplinary, Department of Oral Surgery and Implantology, University of Cologne, Cologne, Germany
| | - M Wichmann
- Department of Prosthodontics, University Hospital Erlangen, Erlangen, Germany
| | - J E Zöller
- Department of Oral and Maxillofacial Plastic Surgery and Interdisciplinary, Department of Oral Surgery and Implantology, University of Cologne, Cologne, Germany
| | - A Grandoch
- Department of Oral and Maxillofacial Plastic Surgery and Interdisciplinary, Department of Oral Surgery and Implantology, University of Cologne, Cologne, Germany
| | - S Eitner
- Department of Prosthodontics, University Hospital Erlangen, Erlangen, Germany
| | - M Kreppel
- Department of Oral and Maxillofacial Plastic Surgery and Interdisciplinary, Department of Oral Surgery and Implantology, University of Cologne, Cologne, Germany.
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