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Burgoa S, Jony de Moura E Costa A, Ventura D, Pinhata-Baptista OH, Cortes ARG. Digital workflow for definitive immediately loaded complete arch CAD-CAM implant-supported prosthesis in 3 appointments without using intraoral scanning. J Prosthet Dent 2024; 132:31-36. [PMID: 35810041 DOI: 10.1016/j.prosdent.2022.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/11/2022] [Accepted: 05/11/2022] [Indexed: 10/17/2022]
Abstract
This article presents a rapid technique for the accurate transfer of implant positions immediately after image-guided surgery to enable the immediate installation of a definitive complete arch implant-supported prosthesis with an implant biological width of 3 mm within 3 appointments. A sleeveless copy of the implant surgical guide is magnetically connected to a reference guide to ensure the accurate capture of cylindrical titanium transfer abutments. In the laboratory, the sleeveless guide with the splinted transfer abutments attached is used to generate a definitive cast to be scanned with a desktop scanner. The resulting digital definitive cast is then combined with the original meshes of the prosthetically driven virtual treatment plan to enable a definitive computer-aided design and computer-aided manufactured prosthesis to be fabricated and installed with passive fit.
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Affiliation(s)
- Shaban Burgoa
- Private Dental Surgeon, Department of Implant Dentistry GoBeyond Institution (BDS), Curitiba, Brazil
| | | | - Dionir Ventura
- Certified Dental Technician, Ventura Lab, Curitiba, Brazil
| | - Otavio Henrique Pinhata-Baptista
- PhD student, Department of Oral Radiology, School of Dentistry, University of São Paulo (USP), São Paulo, São Paulo, Brazil; Head of Dental Implant Clinic of the Military Hospital of São Paulo Area (HMASP), Brazilian Army, São Paulo, São Paulo, Brazil.
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2
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Addy LD. An introduction to dental implants. Br Dent J 2024; 236:753-757. [PMID: 38789751 DOI: 10.1038/s41415-024-7430-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 04/26/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024]
Abstract
The use of implants to replace missing teeth is now commonplace and practised by clinicians worldwide in both general and specialist practice. There is an abundance of evidence on the general success of implant treatment. As well as reviewing the history of dental implants, this narrative review will discuss the merits and successful placement of tissue-level verses bone-level implants. Furthermore, the article will evaluate the concept and benefits of platform switching for implant treatment. Finally, with the increased placement of implants, this narrative paper will review how different titanium surfaces impact on the risk of peri-implantitis.
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Affiliation(s)
- Liam D Addy
- Consultant and Honorary Senior Lecturer in Restorative Dentistry, Cardiff Dental Hospital, Heath Park, Cardiff, CF14 4XY, UK.
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Marković A, Todorović A, Glišić M, Marković J, Ilić B, Janjić B, Mišić T, Trifković B, Vučić U, Šćepanović M, Dard MM. Immediate versus early loading of immediately placed bone-level tapered dental implants with hydrophilic surface in full arch maxillary rehabilitation: A pilot randomized clinical trial with 2-year follow-up. Clin Implant Dent Relat Res 2024. [PMID: 38693759 DOI: 10.1111/cid.13334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/21/2024] [Accepted: 04/12/2024] [Indexed: 05/03/2024]
Abstract
This study aimed to compare implant stabilities between the immediate and early loaded, immediately placed bone-level tapered dental implants in the maxilla and to evaluate marginal bone loss (MBL), oral health-related quality of life (OHRQoL), and patient satisfaction at a 2-year follow-up. A pilot, prospective, randomized, controlled clinical trial was conducted on 24 maxillary failing dentition patients. The bone-level tapered implants of 12 patients were immediately loaded with temporary restorations, while the other 12 patients did not receive any kind of temporization. Implant-supported screw-retained complete porcelain-fused-to-metal prostheses were delivered to all patients in the seventh postoperative week. The insertion torque values of implants assigned to the immediate and early loading groups were 33.0 ± 4.87 and 29.26 ± 8.31 Ncm, respectively. The dynamics of implant stability changes from implant placement up to a 2-year follow-up were similar for both groups (Penguin®, p = 0.268; Ostell®, p = 0.552), while the MBL was at submillimeter level. The cumulative implant survival rate was 91.80% for immediately loaded implants and 97.22% for early loaded implants, without significant difference (p = 0.162). The total score on the Oral Health Impact Profile questionnaire significantly decreased over time in both groups, indicating improvement in OHRQoL (p < 0.001), and the high level of patient satisfaction remained after 2 years of function regardless of a loading protocol. Both loading protocols, immediate and early, of six immediately placed bone-level tapered dental implants are an adequate treatment choice for fixed rehabilitation of the maxillary failing dentition.
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Affiliation(s)
- Aleksa Marković
- Implant Center, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Ana Todorović
- Implant Center, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Mirko Glišić
- Clinic of Prosthodontics, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Jovana Marković
- Implant Center, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Branislav Ilić
- Clinic of Oral surgery, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Bojan Janjić
- Clinic of Oral surgery, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Tijana Mišić
- Clinic of Oral surgery, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Branka Trifković
- Implant Center, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Uroš Vučić
- Clinic of Oral surgery, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Miodrag Šćepanović
- Implant Center, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Michel M Dard
- Columbia University, College of Dental Medicine, New York, New York, USA
- Institut Straumann, Basel, Switzerland
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Wong I, Zhang Z, Dang X, Yu X, Lin X, Li Y, Deng F, Xu R. Single missing molar with wide mesiodistal length restored using a single or double implant-supported crown: A self-controlled case report and 3D finite element analysis. J Prosthodont Res 2024:JPR_D_23_00278. [PMID: 38644231 DOI: 10.2186/jpr.jpr_d_23_00278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
PURPOSE Based on a self-controlled case, this study evaluated the finite element analysis (FEA) results of a single missing molar with wide mesiodistal length (MDL) restored by a single or double implant-supported crown. METHODS A case of a missing bilateral mandibular first molar with wide MDL was restored using a single or double implant-supported crown. The implant survival and peri-implant bone were compared. FEA was conducted in coordination with the case using eight models with different MDLs (12, 13, 14, and 15 mm). Von Mises stress was calculated in the FEA to evaluate the biomechanical responses of the implants under increasing vertical and lateral loading, including the stress values of the implant, abutment, screw, crown, and cortical bone. RESULTS The restorations on the left and right sides supported by double implants have been used for 6 and 12 years, respectively, and so far have shown excellent osseointegration radiographically.The von Mises stress calculated in the FEA showed that when the MDL was >14 mm, both the bone and prosthetic components bore more stress in the single implant-supported strategy. The strength was 188.62-201.37 MPa and 201.85-215.9 MPa when the MDL was 14 mm and 15 mm, respectively, which significantly exceeded the allowable yield stress (180 MPa). CONCLUSIONS Compared with the single implant-supported crown, the double implant-supported crown reduced peri-implant bone stress and produced a more appropriate stress transfer model at the implant-bone interface when the MDL of the single missing molar was ≥14 mm.
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Affiliation(s)
- Iohong Wong
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Zhengchuan Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaobing Dang
- Guangdong Janus Biotechnology Co., Ltd., Guangzhou, China
- Guangdong CAS Angels Biotechnology Co., Ltd., Foshan, China
| | - Xiaoran Yu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoxuan Lin
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yiming Li
- Department of Stomatology, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Feilong Deng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Ruogu Xu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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Waltenberger L, Reissmann DR, Blender S, Fritzer E, Heydecke G, Kappel S, Mundt T, Schierholz CV, Stiesch M, Wolfart S, Yazigi C, Kern M, Passia N. Impact of loading protocol of a mandibular single implant-supported complete denture on oral health-related quality of life over a period of 5 years: A randomized controlled trial. J Dent 2024; 142:104769. [PMID: 37926424 DOI: 10.1016/j.jdent.2023.104769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/27/2023] [Accepted: 10/29/2023] [Indexed: 11/07/2023] Open
Abstract
OBJECTIVES The aim of the present study was to assess the long-term course of OHRQoL and the impact of the loading protocol in patients receiving a single mandibular implant supporting a complete denture over a period of five years. METHODS In this multicenter RCT, a total of 158 edentulous patients were initially included and were randomly allocated immediately after placement of a mandibular midline implant to either immediate loading (IL) or to conventional loading (CL) with submerged healing. The assessment of OHRQoL was performed with the 49-item Oral Health Impact Profile (OHIP) at baseline and 1, 4, 12, 24, and 60 months after loading. At 5-year follow-up, 100 patients (mean age: 69.2 years; 45.0% female) with completed OHIP were available for analyses. A mixed-effects model with patients as random effect and an unstructured covariance matrix was developed to address repeated outcome measurement. RESULTS The OHRQoL improved substantially after loading, indicated by a decrease of mean OHIP summary scores from 51.0 points at baseline, by 14.2 (95%-CI: 9.4 - 19.1; p<0.001) points to 37.2 points at 1-month follow-up, and by continuous improvement to 20.4 OHIP points at final follow-up. Considering constant treatment effects, the loading protocol had no significant effect on OHIP scores (-3.7, 95%-CI: -9.4 - 2.2; p = 0.204). Time effect was statistically significant with -0.21 (95%-CI: -0.28 - -0.15; p<0.001) points per month. CONCLUSION Both the immediate and conventional loading of a single mandibular midline implant supporting a complete denture offer long-lasting high levels of OHRQoL, with no significant or clinically relevant long-term differences. CLINICAL SIGNIFICANCE The study firstly presents long-term data for OHRQoL by investigating the loading protocol of single mandibular implant-supported complete dentures. Since immediate loading has been associated with a reduced implant survival rate for this concept, information on patient benefits is essential for evidence-based decision making.
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Affiliation(s)
- L Waltenberger
- Department of Prosthodontics and Biomaterials, Centre for Implantology, RWTH Aachen University Hospital, Aachen, Germany.
| | - D R Reissmann
- Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Freiburg, Freiburg, Germany; Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - S Blender
- Center of Dentistry, Department of Prosthetic Dentistry, Ulm University Hospital, Ulm, Germany
| | - E Fritzer
- Center for Clinical Studies, University Hospital Schleswig-Holstein, Kiel University, Kiel, Germany
| | - G Heydecke
- Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - S Kappel
- Department of Prosthodontics, Heidelberg University Hospital, Heidelberg, Germany
| | - T Mundt
- Department of Prosthodontics, Gerodontology and Biomaterials, Greifswald University Hospital, Greifswald, Germany
| | - C V Schierholz
- Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Freiburg, Freiburg, Germany
| | - M Stiesch
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Hannover, Germany
| | - S Wolfart
- Department of Prosthodontics and Biomaterials, Centre for Implantology, RWTH Aachen University Hospital, Aachen, Germany
| | - C Yazigi
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University at Kiel, Germany
| | - M Kern
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University at Kiel, Germany
| | - N Passia
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University at Kiel, Germany; Department of Prosthetic Dentistry, Faculty of Medicine Carl Gustav Carus, TU Dresden, Germany
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Anitua E, Eguia A, Staudigl C, Alkhraisat MH. Clinical performance of additively manufactured subperiosteal implants: a systematic review. Int J Implant Dent 2024; 10:4. [PMID: 38315326 PMCID: PMC10844163 DOI: 10.1186/s40729-024-00521-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 01/11/2024] [Indexed: 02/07/2024] Open
Abstract
PURPOSE The aim of this study was to assess implant survival and complications rate of modern subperiosteal implants (CAD designed and additively manufactured). METHODS A systematic review was conducted using three electronic databases; Medline (Pubmed), Cochrane library, and SCOPUS, following the PRISMA statement recommendations to answer the PICO question: "In patients with bone atrophy (P), do additively manufactured subperiosteal implants (I), compared to subperiosteal implants manufactured following traditional approaches (c), present satisfactory implant survival and complication rates (O)? The study was pre-registered in PROSPERO (CRD42023424211). Included articles quality was assessed using the "NIH quality assessment tools". RESULTS Thirteen articles were finally selected (5 cohort studies and 8 case series), including 227 patients (121 female / 106 male; weighted mean age 62.4 years) and 227 implants. After a weighted mean follow-up time of 21.4 months, 97.8% of implants were in function (5 failures reported), 58 implants (25.6%) presented partial exposure, 12 patients (5.3%) suffered soft tissue or persistent infection. Fracture of the interim prosthesis was reported in 8 of the155 patients (5.2%) in which the use of a provisional prosthesis was reported. A great heterogeneity was found in terms of study design and methodological aspects. For this reason, a quantitative analysis followed by meta-analysis was not possible. CONCLUSIONS Within the limitations of this study, modern additively manufactured subperiosteal implants presented a good survival in the short-time, but a noticeable number of soft-tissue related complications were reported. Further studies are needed to assess the clinical behavior in the medium- and long-term.
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Affiliation(s)
- Eduardo Anitua
- University Institute for Regenerative Medicine and Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Jose Maria Cagigal Kalea, 19, 01007, Vitoria-Gasteiz, Araba, Spain.
- BTI-Biotechnology Institute, Vitoria, Spain.
| | - Asier Eguia
- University of the Basque Country UPV/EHU and University Institute for Regenerative Medicine and Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
| | - Christoph Staudigl
- Department of Cranio-Maxillofacial Surgery, Kepler Universitätsklinikum, Linz, Austria
| | - Mohammad Hamdan Alkhraisat
- University Institute for Regenerative Medicine and Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Jose Maria Cagigal Kalea, 19, 01007, Vitoria-Gasteiz, Araba, Spain
- BTI-Biotechnology Institute, Vitoria, Spain
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Grassi A, Monica D, Minetti E, Ballini A, Gianfreda F, Bollero P, Cicciù M, Mastrangelo F. Innovative Alveolar Ridge Preservation Surgical Technique with Immediate Dental Implant Placement: A Retrospective Case Report of 1-Year Follow-Up. Eur J Dent 2024; 18:408-414. [PMID: 37995724 PMCID: PMC10959618 DOI: 10.1055/s-0043-1772676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023] Open
Abstract
Following tooth extraction, the alveolar ridge undergoes morphological and dimensional changes, including a clot formation that is gradually replaced by granulation tissue. Studies indicate that both horizontal and vertical ridge dimensions decrease after extraction; however, these changes can be mitigated through grafting with biomaterials and barrier membranes. Alveolar ridge preservation (ARP) techniques are employed to counteract bone resorption postextraction, encompassing periosteal inhibition and modified periosteal inhibition (MPI) techniques. The Degidi clot chamber technique offers a means to achieve biomaterial-free extraction sockets, promoting healing and osteointegration. This study aims to present the first rehabilitation of a postextraction dental implant in the maxilla using an innovative ARP procedure via a MPI technique. The technique does not involve autologous or heterologous grafting materials; instead, a cortical lamina and a customized screw are used in conjunction with the blood clot. The primary objective is to protect the vestibular cortical bone from preosteoclastic aggression, which can trigger bone resorption. The technique employs a 0.5-mm cortical lamina to mechanically shield the vestibular cortical bone, preventing vestibular cortical bone resorption and increasing its thickness without the need for biomaterial insertion, relying on the blood clot. The effectiveness of the technique was assessed through a 12-month postimplantation cone-beam computed tomography scan, revealing a 0.5-mm increase. Although based on a single case, the 1-year follow-up results are promising, and further studies are warranted to validate the technique's efficacy.
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Affiliation(s)
- Andrea Grassi
- Private Practice Dental Clinic, Reggio Emilia, Italy
| | - Daniele Monica
- Department of Clinical and Experimental Medicine, Dental School, University of Foggia, Foggia, Italy
| | - Elio Minetti
- Private Practice and Professor a c. University of Milan, Milan, Italy
| | - Andrea Ballini
- Department of Clinical and Experimental Medicine, Dental School, University of Foggia, Foggia, Italy
| | - Francesco Gianfreda
- Department of Industrial Engineering, University of Rome “Tor Vergata”, Rome, Italy
| | - Patrizio Bollero
- Department of System Medicine, Dental School, University of Rome “Tor Vergata”, Rome, Italy
| | - Marco Cicciù
- Department of General Surgery and Surgical-Medical Specialties, Dental School, University of Catania, Catania, Italy
| | - Filiberto Mastrangelo
- Department of Clinical and Experimental Medicine, Dental School, University of Foggia, Foggia, Italy
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Albiero AM, Bevilacqua L, Pegoraro F, Turco G, Momic S, Di Lenarda R, Maglione M. Mechanical and fatigue resistance of restorations supported by welded-framework and realized using computer-aided designed prosthetic shells: In vitro pilot study. Proc Inst Mech Eng H 2024; 238:250-256. [PMID: 38189276 DOI: 10.1177/09544119231221189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Resin coating in implants rehabilitation cannot always be aesthetic, durable and comfortable for the patient mainly due to the limited dimensions of the final structure. Intraoral welding technique and computer-aided designed prosthetic shells may be a solution. This in vitro study evaluates the capacity of load and the weakest point of implant-supported provisional prosthesis using welded titanium framework. Twelve samples were produced to simulate an implant supported fixed prosthetic bridge. Two implants (Ankylos; Dentsply Sirona Implants; Germany) were inserted inside blocks of nanoceramic material produced with a stereolithographic 3D printer. A polymethylmethacrylate (PMMA) resin shell was performed with CAD/CAM and relined on welded framework. Six samples were produced with the same procedure reducing resin thickness. The samples were subjected to fatigue test (6,500,000 cycles) using ElectroForce 3310 fatigue machine (t1); subsequently a mechanical compression test using a universal Shimadzu AGS-X 10 machine (t2). The samples were analyzed with a photographic and radiographic documentation at t0, t1 and t2. The samples survived mechanical fatigue test without evidence of failure. The radiographic and photographic evaluation revealed the fracture of resin coating after the mechanical compression test. The samples with minimal resin thickness fractured first. Adequate assessment of the resin thickness is mandatory to improve the longevity of these rehabilitations. CAD-CAM digital prosthetic design allows us to optimize the thicknesses and the prosthetic shapes, allowing us to obtain good degrees of resistance even in the presence of reduced prosthetic spaces.
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Affiliation(s)
| | | | - Federica Pegoraro
- Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Gianluca Turco
- Department of Medical Sciences, University of Trieste, Trieste, Italy
| | | | | | - Michele Maglione
- Department of Medical Sciences, University of Trieste, Trieste, Italy
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Velasco-Ortega E, Carretero-Barrado L, Moreno-Muñoz J, Ortiz-García I, Núñez-Márquez E, Rondón-Romero JL, López-López J, Jiménez-Guerra Á, Monsalve-Guil L. Immediate Loading of Implants with Fixed Rehabilitations in Geriatric Edentulous Patients; Biological Complications. J Clin Med 2023; 12:6548. [PMID: 37892686 PMCID: PMC10607342 DOI: 10.3390/jcm12206548] [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: 09/09/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND This study aimed to report the outcomes of the immediate loading of implants with fixed rehabilitations in edentulous geriatric patients. METHODS Edentulous geriatric patients were diagnosed with an oral examination, radiographic evaluation, and intermaxillary relations and treated with fixed rehabilitation over several implants. After immediate surgery, the implants were immediately loaded with a fully fixed prosthesis. RESULTS Twenty-four patients (20 females and 4 males) were treated using a total 210 implants. All patients (100%) had a previous history of periodontitis. Eleven patients (45.8%) were smokers. Eleven patients (45.8%) suffered from chronic medical diseases (i.e., diabetes, cardiovascular diseases). The study's clinical follow-up period extended for three years, during which thirty-three fixed prostheses were installed over the implants in 24 patients. The average marginal bone loss measured was 1.33 ± 0.17 mm. The success rate of the implants and prosthodontics being placed in this study yielded 98.5% and 97%, respectively. One patient (4.2%) showed some kind of technical complications. Eleven patients (45.8%) showed mucositis, and 25 implants (11.9%) in 10 patients (41.7%) were associated with peri-implantitis. CONCLUSIONS This study shows that the treatment of edentulous geriatric patients by immediate loading of implants with fixed rehabilitations is a clinically successful protocol but with a high prevalence of peri-implant diseases.
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Affiliation(s)
- Eugenio Velasco-Ortega
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Laura Carretero-Barrado
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Jesús Moreno-Muñoz
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Ivan Ortiz-García
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Enrique Núñez-Márquez
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - José Luis Rondón-Romero
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - José López-López
- Faculty of Medicine and Health Sciences (Dentistry) & Dentistry Hospital, University of Barcelona, 08907 L’Hospitalet de Llobregat, Spain
| | - Álvaro Jiménez-Guerra
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
| | - Loreto Monsalve-Guil
- Faculty of Dentistry, University of Seville, 41004 Sevilla, Spain; (E.V.-O.); (L.C.-B.); (J.M.-M.); (I.O.-G.); (E.N.-M.); (J.L.R.-R.); (L.M.-G.)
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10
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Shrivastava R, Luxenberg R, Sutton E, Emami E. Patients experience and satisfaction with immediate loading of implant-supported overdentures - A qualitative study. J Dent 2023; 137:104644. [PMID: 37527728 DOI: 10.1016/j.jdent.2023.104644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/03/2023] Open
Abstract
OBJECTIVES To explore the perspectives and experiences of edentate individuals in regard to the immediate-loading protocol of an implant-supported overdenture. METHODS A qualitative approach and interpretive description methodology was used. Seventeen edentate individuals (mean age: 61.9 ± 6.6 years) who received implant-supported overdentures through an immediate-loading protocol participated. Audio-recorded, semi-structured, in-depth interviews, each with a 60-90-minute duration, were conducted by two trained interviewers. The interview guide was developed based on Perneger's Detailed Model. Qualitative data were analyzed using a thematic approach including interview debriefing, transcript coding, data display, inductive thematic analysis, and interpretation. RESULTS Three main themes emerged from the interviews: patient awareness and engagement with treatment, experience-shaped expectations, and immediate gratification. All patients expressed satisfaction with the treatment. Providing detailed information, good communication, and accessibility of the dental care provider had a significant impact on patient satisfaction with prosthetic care. Patients highlighted that the high cost of implant therapy was the major barrier to receiving this treatment in the private sector and perceived dental insurance coverage as a facilitator of this process. CONCLUSIONS Study findings conclude that patient awareness about immediate-loading protocol improved their treatment engagement, and patient satisfaction with the treatment outcomes was higher than anticipated. The satisfaction was primarily related to prosthesis stability, receiving the prosthesis the same day, and low cost of treatment. Patients' positive experience and satisfaction with the immediate-loading protocol indicate that this treatment modality should be considered in treatment planning for edentate individuals. CLINICAL SIGNIFICANCE The perceptions and experiences of edentulous patients gathered in this study highlight their satisfaction with immediate loading for implant-supported overdentures. This therapeutic modality can be considered a viable option in treatment planning for edentulous individuals.
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Affiliation(s)
- Richa Shrivastava
- Faculty of Dentistry, University of Montreal, 2900 Boulevard Edouard-Montpetit, Montreal, QC, Canada
| | - Ryan Luxenberg
- Faculty of Dentistry, University of Montreal, 2900 Boulevard Edouard-Montpetit, Montreal, QC, Canada
| | - Edward Sutton
- Faculty of Dentistry, University of Montreal, 2900 Boulevard Edouard-Montpetit, Montreal, QC, Canada
| | - Elham Emami
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, 2001 McGill College Avenue, Suite 500, Montreal QC H3A 1G1, Canada.
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11
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Ding Y, Zhou H, Zhang W, Chen J, Zheng Y, Wang L, Yang F. Evaluation of a platform-switched Morse taper connection for all-on-four or six treatment in edentulous or terminal dentition treatment: A retrospective study with 1-8 years of follow-up. Clin Implant Dent Relat Res 2023; 25:815-828. [PMID: 37248812 DOI: 10.1111/cid.13228] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/07/2023] [Accepted: 05/14/2023] [Indexed: 05/31/2023]
Abstract
BACKGROUND The survival rate, marginal bone loss and soft tissue health of the Ankylos implants and the balanced base abutments in all-on-four or six implant restoration of edentulous or terminal dentition patients has not been reported in the clinical research. PURPOSE This retrospective study aimed to evaluate the Ankylos implants and the balanced base abutments in all-on-four or six implant restoration of edentulous or terminal dentition patients after 1-8 years of follow-up. MATERIALS AND METHODS A retrospective study was conducted based on the medical records of 33 patients who received all-on-four or six treatments from April 2014 to May 2020. Four radiographic examinations [immediate postoperative (T0), definitive restorations (T1), 1-3 years after prosthetic restorations (T2), and more than 3 years after prosthetic restorations (T3)] were obtained to evaluate vertical bone height (VBH). We also calculated the survival rate and examined the condition of soft tissue with this implant system in edentulous or terminal dentition patients. Three-level linear model analyses were used to explore potential risk factors for VBH changes on the mesial and distal sides. The generalized linear model was used to analyze the influencing factors of BOP and plaque. RESULTS A total of 218 implants were included in this study. The cumulative survival rate of the implants was 97.25% before the definitive prosthesis, 96.33% within 3 years of follow-up and 95.32% after more than 3 years of follow-up. The mean ± standard deviation (SD) bone losses of the VBH were 0.27 ± 0.05 mm (T1-T3) on the mesial side and 0.49 ± 0.06 mm (T1-T3) on the distal side. During 1-8 years of follow-up, the height and angle of the abutment (p < 0.001), the mandible implant site (p < 0.001), the length of the implant (p = 0.014 < 0.05) and age (p = 0.029 < 0.05) showed statistically significant effects on vertical mesial bone height (VMBH) and vertical distal bone height (VDBH). The risk of BOP among participants who brushed three times a day was lower than those who brushed less than three times. The plaque risk of short abutment height was higher than the long abutment. CONCLUSION The current study showed that the Ankylos implants with the balanced base abutments in all-on-four or six implants treatment is a viable and predictable option with a high survival rate and low marginal bone loss in edentulous or terminal dentition patients. VBH around the implants was strongly associated with the mandible implant site, abutment height and angle, the length of the implant and age. Moreover, teeth-brushing times and abutment height significantly affect soft tissue health.
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Affiliation(s)
- Yude Ding
- Center for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Huajun Zhou
- College of Stomatology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Wentao Zhang
- Center for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jianping Chen
- Center for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yuanna Zheng
- College of Stomatology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Linhong Wang
- Center for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Fan Yang
- Center for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
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12
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Reissmann DR, Schimmel M, Kraus D, Stoilov M, Srinivasan M, Enkling N. IMPACT OF LOADING PROTOCOL OF 2-IMPLANT BAR-RETAINED MANDIBULAR OVERDENTURES ON ORAL HEALTH-RELATED QUALITY OF LIFE: A RANDOMIZED CONTROLLED TRIAL. J Evid Based Dent Pract 2023; 23:101891. [PMID: 37689447 DOI: 10.1016/j.jebdp.2023.101891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 04/10/2023] [Accepted: 05/10/2023] [Indexed: 09/11/2023]
Abstract
OBJECTIVES Aim was to assess whether immediate loading (IL) is more effective than delayed loading (DL) for 2-implant bar-retained mandibular overdentures in terms of oral health-related quality of life (OHRQoL) improvement over a period of 24-month. METHODS In this randomized controlled trial, 32 edentulous patients (mean age: 65.7 ± 10.6 years, 50.0% female) were included. Potential participants had to be unsatisfied with the retention of their current mandibular complete denture and demanded implant treatment for inclusion in the study. OHRQoL was assessed with the 49-item Oral Health Impact Profile (OHIP) at baseline before treatment and 1, 3, 6, 12, and 24 months after implant loading and insertion of implant-retained bars for overdenture support. A mixed-effects model with patients as random effect and an unstructured covariance matrix was developed to address repeated outcome measurement. RESULTS Patients' OHRQoL impairment at baseline was substantial indicated by mean OHIP summary score of 45.1 points. OHIP summary scores decreased substantially from baseline to 1-month follow-up to a mean of 33.5 points (P = .020). OHRQoL further improved during study period indicated by OHIP summary score of 25.7 points at 24-month follow-up. Raw treatment effects (IL vs. DL) ranged from -1.2 OHIP points for 12-month follow-up to 5.8 OHIP points for 24-month follow-up. Assuming constant treatment and time effects, treatment effect was small and not statistically significant (-0.7 OHIP points; P= .918). CONCLUSION A 2-implant bar-retained mandibular overdentures substantially improves OHRQoL over a period of at least 24 months. There seems to be no significant effect of implant loading protocol.
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Affiliation(s)
- Daniel R Reissmann
- Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Freiburg, Freiburg, Germany; Department of Prosthetic Dentistry, Center for Dental and Oral Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Martin Schimmel
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Division of Gerodontology and Removable Prosthodontics, University of Geneva, Geneva, Switzerland
| | - Dominik Kraus
- Department of Prosthodontics, Preclinical Education and Dental Material Science, University of Bonn, Bonn, Germany
| | - Milan Stoilov
- Department of Prosthodontics, Preclinical Education and Dental Material Science, University of Bonn, Bonn, Germany
| | - Murali Srinivasan
- Clinic of General, Special care and Geriatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland; Division of Gerodontology and Removable Prosthodontics, University of Geneva, Geneva, Switzerland
| | - Norbert Enkling
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Department of Prosthodontics, Preclinical Education and Dental Material Science, University of Bonn, Bonn, Germany
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13
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Guo YQ, Ma Y, Cai SN, Yu H. Optimal impression materials for implant-supported fixed complete dentures: A systematic review and meta-analysis. J Prosthet Dent 2023:S0022-3913(23)00433-X. [PMID: 37599185 DOI: 10.1016/j.prosdent.2023.06.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 08/22/2023]
Abstract
STATEMENT OF PROBLEM Although polyvinyl siloxane (PVS) materials and polyether (PE) materials have been the recommended materials for making impressions for implant-supported fixed complete dentures (IFCDs), a consensus regarding the optimal impression materials has yet to be established. PURPOSE The purpose of this systematic review and meta-analysis was to evaluate the effect of impression materials on the accuracy of conventional impressions for IFCDs and to provide guidance for selecting the optimal impression material. MATERIAL AND METHODS The PubMed, Web of Science, and Embase databases were searched and supplemented via hand searches. Studies comparing the accuracy of conventional impressions for IFCDs by using PVS and PE materials with either direct (open-tray) or indirect (closed-tray) techniques were included. Linear distance deviations and angular deviations between adjacent implants were evaluated. The mean difference (MD) with a 95% confidence interval (CI) was calculated for continuous data. A subgroup analysis was conducted to evaluate the impact of implant angulation (α=.05). RESULTS Among the 597 publications identified, 27 in vitro studies were included for qualitative analysis, and 12 were included for quantitative analysis. The general analysis revealed no significant differences in linear distance and angular deviations between the 2 impression materials with the direct or indirect technique. The subgroup analysis found that a statistically significant difference in linear distance deviations was found when implants were placed at an angle greater than 15 degrees, favoring PE materials when using the direct technique (P=.010, MD: 32.54 µm; 95% CI: 6.83 to 58.24) and indirect technique (P=.020, MD: 138.15 µm, 95% CI: 19.17 to 257.13). However, only 2 relevant studies assessed the indirect technique. CONCLUSIONS When providing IFCDs, conventional impressions obtained by using PVS and PE materials were found to have similar accuracy in most scenarios. PE materials yielded better outcomes when implants were placed at an angle greater than 15 degrees.
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Affiliation(s)
- Yong-Qing Guo
- Postgraduate student, Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Yun Ma
- PhD Candidate, Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Shu-Ning Cai
- Postgraduate student, Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Hao Yu
- Associate Professor and Associate Dean, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, PR China; and Adjunct Associate Professor, Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan..
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14
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Naeini EN, Atashkadeh M, Jacquet W, D'Haese J, De Bruyn H. Incidence of Peri-Implantitis, Technical and Biological Complications of Single Implants Placed with Flap or Flapless Surgery-A 10-12-Year Case-Series. J Clin Med 2023; 12:jcm12113668. [PMID: 37297870 DOI: 10.3390/jcm12113668] [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: 03/19/2023] [Revised: 04/13/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Long-term follow-up of single implants and crowns is scarce, especially when inserted using flapless surgery. AIM Evaluate survival, peri-implantitis incidence, and technical/biologic complications of solitary implants/crowns after 10-12 years of function. MATERIAL AND METHODS 49 patients with 53 single implants, initially operated with a one-stage flap (F) or flapless (FL) surgery and delayed loading, were recalled. Implant survival, radiographic bone-level changes compared to baseline, peri-implant health, and soft tissue aesthetics were registered. Differences in implant level between and within groups were statistically tested using the Mann-Whitney U-Test and Wilcoxon Signed Ranks Test, respectively. RESULTS 36 patients with 40 implants were reassessed, yielding 100% implant and 97.5% crown survival. The bone loss in F (n = 19) was 0.56 mm (SD 0.89; range -0.9-2.02) and -0.85 mm (SD 0.98; range -2.84-0.53) in FL (n = 21), indicative of bone gain in FL (p = 0.003), the latter due to a difference at baseline but bone-level was comparable (p = 0.126). Groups were comparable for probing pocket depth (PPD); (3.32 vs. 3.19 mm), Bleeding Index (BI); (0.15 vs. 0.22), and gingival recession; (0.38 vs. 0.17 mm). According to international criteria, the peri-implantitis incidence was 0%, but 32.5% of the implants/crowns experienced biological or technical complications irrespective of surgical technique. CONCLUSIONS Solitary implants and crowns show good long-term clinical outcomes and peri-implant health. Flapless surgery is a good alternative to conventional in straightforward cases with sufficient bone volume and proper treatment planning.
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Affiliation(s)
- Emitis Natali Naeini
- Department of Periodontology and Implantology, Department of Dentistry, Radboud University Medical Centre, 6525 GA Nijmegen, The Netherlands
| | | | - Wolfgang Jacquet
- Department of Surgical Clinical Sciences CHIR-ORHE, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, 1050 Brussels, Belgium
- Department of Educational Sciences EDWE-LOCI, Faculty of Psychology and Educational Sciences, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Jan D'Haese
- Department of Periodontology and Implantology, Department of Dentistry, Radboud University Medical Centre, 6525 GA Nijmegen, The Netherlands
| | - Hugo De Bruyn
- Department of Periodontology and Implantology, Department of Dentistry, Radboud University Medical Centre, 6525 GA Nijmegen, The Netherlands
- Department of Periodontology and Oral Implantology, Faculty of Medicine and Health Sciences, University of Ghent, 9000 Gent, Belgium
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15
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Babayi M, Ashtiani MN, Emamian A, Ramezanpour H, Yousefi H, Mahdavi M. Peri-implant cell differentiation in delayed and immediately-loaded dental implant: A mechanobiological simulation. Arch Oral Biol 2023; 151:105702. [PMID: 37086495 DOI: 10.1016/j.archoralbio.2023.105702] [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: 12/09/2022] [Revised: 04/15/2023] [Accepted: 04/15/2023] [Indexed: 04/24/2023]
Abstract
OBJECTIVE This study aimed to investigate the effect of immediate versus delayed dental implant placement strategies on cell differentiation in a dental callus. DESIGN The implant was placed in the mandible with two nearby teeth using an idealized two-dimensional finite element model. Eight weeks after surgery, the mechanobiological modeling of healing was used to estimate cell differentiation. It was assumed that the callus was initially filled by mesenchymal cells. The model then transformed mechanical stimuli received by the callus from loadings in terms of distortional and dilatational strains into predictions of the cellular phenotypes, including fibroblasts, chondrocytes, and osteoblasts, or whether they would remain unchanged or die. RESULTS The results demonstrated that delayed loading led to greater bone formation than immediate loading. Osteoblast colonies were observed in the base of threads in the immediately-loaded implant, whereas the delayed loading caused distant bone formation from the surrounding bone side towards the implant. The osteoblasts were differentiated from both intramembranous and endochondral mechanisms of ossification. After eight weeks, approximately 61 % of the callus was ossified in the delayed placement model compared to 35 % in the immediate placement model, resulting in a greater amount of fibrocartilaginous tissue on the bone side of the callus. CONCLUSIONS Immediate and delayed loading models generated different results. In the delayed strategy, bone cells were supplied appropriately during the first few weeks following surgery, whereas the immediate loading caused fibrocartilaginous tissue differentiation. In the form of distant osseointegration, the secondary stability of the dental implant was higher and faster due to the delayed placement.
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Affiliation(s)
- Masumeh Babayi
- Department of Biomedical Engineering, Sahand University of Technology, Tabriz, Islamic Republic of Iran
| | - Mohammed N Ashtiani
- Faculty of Medical Sciences, Tarbiat Modares Unviersity, Tehran, Islamic Republic of Iran.
| | - Amirhossein Emamian
- Department of Biomedical Engineering, Sahand University of Technology, Tabriz, Islamic Republic of Iran; Research and Development Department, Avita Dental System, Tehran, Islamic Republic of Iran
| | - Hosseinali Ramezanpour
- Research and Development Department, Avita Dental System, Tehran, Islamic Republic of Iran
| | - Hashem Yousefi
- Research and Development Department, Avita Dental System, Tehran, Islamic Republic of Iran
| | - Majid Mahdavi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Islamic Republic of Iran
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Velasco-Ortega E, Cracel-Lopes JL, Matos-Garrido N, Jiménez-Guerra A, Ortiz-Garcia I, Moreno-Muñoz J, Núñez-Márquez E, Rondón-Romero JL, López-López J, Monsalve-Guil L. Immediate Functional Loading with Full-Arch Fixed Implant-Retained Rehabilitation in Periodontal Patients: Clinical Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13162. [PMID: 36293738 PMCID: PMC9602498 DOI: 10.3390/ijerph192013162] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
(1) Background. The immediate functional loading of implants is a clinical procedure used for treating periodontal edentulous patients. This clinical study aimed to evaluate the clinical outcomes of the immediate functional loading of implants with fully fixed rehabilitations in compromised periodontal patients. (2) Methods. Three hundred and five implants IPX screw implants were placed in 27 periodontal patients using an immediate functional loading protocol with fixed rehabilitations. All patients had a previous history of periodontitis, four patients (14.8%) were smokers and seven patients (25.9%) suffered from chronic medical conditions. (3) Results. Implant and prosthetic clinical findings were evaluated during a mean period of 41.3 ± 19.6 months. No implants were lost during the clinical follow-up. The cumulative survival rate for all implants was 100%. Regarding the prostheses designed, a total of 54 fixed prostheses were placed in the 27 patients immediately after the surgery. Forty-four hybrid fixed prostheses (81.5%) and 10 fixed rehabilitations (18.5%) were placed in the patients. The mean marginal bone loss was 1.51 ± 1.16 mm, ranging from 0 to 3.5 mm during the follow-up evaluation. Thirty-one implants (10.2%) in 10 patients (37%) were associated with peri-implantitis. Five patients (18.5%) showed some kind of technical complications (loss/fracture of the prosthetic screw, acrylic resin fracture, ceramic chipping). (4) Conclusions. The clinical outcomes of this study demonstrate that fixed rehabilitation by immediate functional loading of implants is considered a predictable procedure.
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Affiliation(s)
- Eugenio Velasco-Ortega
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Joao Luis Cracel-Lopes
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Nuno Matos-Garrido
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Alvaro Jiménez-Guerra
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Ivan Ortiz-Garcia
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Jesús Moreno-Muñoz
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - Enrique Núñez-Márquez
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - José Luis Rondón-Romero
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
| | - José López-López
- Department of Odontoestomatology (Dentistry), Service of the Medical-Surgical Area of Dentistry Hospital, University of Barcelona, 08907 L’Hospitalet de Llobregat, Spain
| | - Loreto Monsalve-Guil
- Department of Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41018 Seville, Spain
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Jung SW, Fan YQ, Lee C. Digital Workflow for Edentulous Patients with Implant-Supported Fixed Prostheses: A Fully Digital Technique. Dent J (Basel) 2022; 10:dj10090174. [PMID: 36135169 PMCID: PMC9498228 DOI: 10.3390/dj10090174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/15/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Dentists have made prostheses using traditional methods, which are inconvenient and time-consuming. It includes functional impression taking, plaster model production, wax rim production, intermaxillary relationship and occlusal plane setting, artificial tooth arrangement, denture polymerization, polishing, etc. To make prostheses in this way, the patient has to visit the dentist several times, and it takes a long time for them to receive treatment. In addition, the potential for errors associated with the denture-manufacturing process and the use of denture materials has always existed. However, the recent use of digital technology in dentistry has made it possible to create digital prostheses. Several techniques for the immediate loading of implants with a fixed prostheses in edentulous patients have been developed. However, these techniques are partially digital techniques that include laboratory work for prosthesis fabrication. This article aimed to describe a fully digital technique for implant-supported fixed prostheses. It includes intra-oral scanning of edentulous patients, implant placement planning, and final prosthesis fabrication. This technique facilitates a simple and more efficient immediate restoration after implant placement without using stone casts.
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Affiliation(s)
| | | | - Chunui Lee
- Correspondence: ; Tel.: +82-33-741-1451; Fax: +82-33-741-1442
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18
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Chen C, Lai H, Zhu H, Gu X. Digitally prefabricated versus conventionally fabricated implant-supported full-arch provisional prosthesis: a retrospective cohort study. BMC Oral Health 2022; 22:335. [PMID: 35945572 PMCID: PMC9361685 DOI: 10.1186/s12903-022-02376-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 08/03/2022] [Indexed: 12/05/2022] Open
Abstract
Background To evaluate and compare the clinical outcomes of digitally prefabricated and conventionally fabricated implant-supported full-arch provisional prostheses. Methods In this retrospective study, a total of 39 patients (22 males and 17 females) who underwent implant-supported full-arch rehabilitation using the All-on-4 concept with an immediate loading protocol were included: 20 patients treated with digitally prefabricated provisional prostheses were assigned into Group A, and 19 patients treated with conventionally fabricated provisional prostheses were assigned into Group B. Implant/provisional prosthesis survival rates and complications were reviewed. Marginal bone loss (MBL) was investigated by CBCT. Surgical time, restorative time, and total operative time were analyzed. Postoperative pain and swelling were evaluated with the visual analog scale (VAS). The oral health impact profile (OHIP) questionnaire was administered before and after surgery. Results The implant/provisional prosthesis survival rate was 100%, and complications appeared with low frequency in both groups, while the mean MBL was 0.30 ± 0.29 mm in Group A and 0.31 ± 0.41 mm in Group B after 3~ 6 months (P > 0.05). The average restorative time in Group A (116.16 ± 16.61 min) was significantly shorter than that in Group B (242.11 ± 30.14 min) (P < 0.05). Patients in Group A showed lower pain/swelling VAS scores after surgery than Group B (P < 0.05). Low OHIP scores with high satisfaction with the overall effects were shown in both groups. Conclusion Prefabricated prostheses reduced the prosthetic time and postoperative discomfort in patients whose immediate rehabilitation was based on the All-on-4 concept. This prefabrication technology may be a predictable alternative to improve the short-term clinical outcome of implant-supported full-arch provisional rehabilitation.
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Affiliation(s)
- Chaoqun Chen
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, #79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Haiyan Lai
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, #79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Huiyong Zhu
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, #79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Xinhua Gu
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, #79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, People's Republic of China.
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Chakraborty A, Sahare KD, Datta P, Majumder S, Roychowdhury A, Basu B. Probing the Influence of Hybrid Thread Design On Biomechanical Response of Dental Implants: Finite Element Study and Experimental Validation. J Biomech Eng 2022; 145:1143180. [PMID: 35838340 DOI: 10.1115/1.4054984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To perform quantitative biomechanical analysis, probing the effect of varying thread shapes in an implant for improved primary stability in prosthodontics surgery. METHODS Dental implants with square (SQR), buttress (BUT) and triangular (TRI) thread shapes or their combinations. Cone-beam computed tomography images of mandible molar zones in human subjects belonging to three age groups were used for virtual implantation of designed implants, to quantify patient-specific peri-implant bone micro-strain, using finite element analyses. The in silico analyses were carried out considering frictional contact to simulate immediate loading with a static masticatory force of 200 N. In order to validate computational biomechanics results, compression tests were performed on 3D printed implants having investigated thread architectures. Bone/implant contact areas were also quantitatively assessed. RESULTS Bone/implant contact was maximum for SQR implants followed by BUT and TRI implants. For all the cases, peak micro-strain was recorded in the cervical cortical bone. The combination of different thread shapes in the middle or apical part (or both) was demonstrated to improve peri-implant micro-strain particularly for BUT and TRI. CONCLUSIONS Considering 1500-2000 micro-strain generates in peri-implant bone during regular physiological functioning, BUT-SQR, BUT-TRI-SQR, TRI-SQR-BUT, SQR, SQR-BUT-TRI design concepts were suitable for younger; BUT-TRI-SQR, BUT-SQR-TRI, TRI-SQR-BUT, SQR-BUT, SQR-TRI for middle-aged, and BUT-TRI-SQR, BUT-SQR-TRI, TRI-BUT-SQR, SQR, SQR-TRI for older group of human patients.
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Affiliation(s)
- Arindam Chakraborty
- Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, P.O. - Botanic Garden, Howrah- 711103, West Bengal, India
| | - Kalash Darshan Sahare
- Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, P.O. - Botanic Garden, Howrah- 711103, West Bengal, India
| | - Pallab Datta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Kolkata- 700054, West Bengal, India
| | - Santanu Majumder
- Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, P.O. - Botanic Garden, Howrah- 711103, West Bengal, India
| | - Amit Roychowdhury
- Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, P.O. - Botanic Garden, Howrah- 711103, West Bengal, India
| | - Bikramjit Basu
- Materials Research Centre, Indian Institute of Science, Bengaluru, Bengaluru- 560012, Karnataka, India
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20
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Leles CR, de Paula MS, Curado TFF, Silva JR, Leles JLR, McKenna G, Schimmel M. Flapped versus flapless surgery and delayed versus immediate loading for a four mini implant mandibular overdenture: a RCT on post-surgical symptoms and short-term clinical outcomes. Clin Oral Implants Res 2022; 33:953-964. [PMID: 35818640 DOI: 10.1111/clr.13974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/14/2022] [Accepted: 06/22/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE This factorial randomized clinical trial tested the effects of the surgical approach (flapped - FPS versus flapless - FLS surgery) and loading protocol (delayed - DL versus immediate - IL) for treatment with a four mini implant mandibular overdenture. MATERIAL AND METHODS A total of 296 one-piece titanium-zirconium mini implants were inserted in 74 patients (IL/FLS=17; IL/FPS=18; DL/FLS=20; DL/FPS=19). Outcomes included patient's perceived surgical burdens, clinical time, implant survival, and post-surgical symptoms and complications, assessed immediately after surgery, in the 7-day and 6-week follow-ups. RESULTS Perceived surgical burdens were relatively low, higher for females, and no difference was found between flapped and flapless surgery. Surgical time was lower for flapless surgery. Overall symptoms were mild after 24 hours, and higher for females. Less symptoms were recorded for the flapless surgery compared to the flapped for the delayed loading patients, and flapless surgery was associated with lower risk of bleeding. No early implant failure was observed until the 6-week follow-up. Delayed was associated with discontinuous use of the prosthesis and poor function. Lower complaint rates were observed for immediate loading regardless of the surgery protocol. CONCLUSIONS Mini implants for mandibular overdenture is a feasible option regardless of surgical access and loading protocol, with high safety and predictable survival rates, and low incidence of post-insertion complications. Flapless surgery requires less clinical time and result in easier intraoral prosthetic incorporation of attachments compared to flapped surgeries. Immediate loading did not increase the risk of early implant failure when satisfactory primary stability was achieved.
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Affiliation(s)
| | | | | | | | | | - Gerald McKenna
- Centre for Public Health, Queen's University Belfast, United Kingdom
| | - Martin Schimmel
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Switzerland.,Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Switzerland
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21
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Tizzoni R, Tizzoni M, Clerici CA. Atypical odontalgia and trigeminal neuralgia: psychological, behavioral and psychopharmacological approach in a dental clinic – an overview of pathologies related to the challenging differential diagnosis in orofacial pain. F1000Res 2022; 10:317. [PMID: 35966965 PMCID: PMC9345266 DOI: 10.12688/f1000research.51845.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/22/2022] [Indexed: 12/03/2022] Open
Abstract
Orofacial pain represents a challenge for dentists, especially if it does not have an odontogenic origin. Orofacial neuropathic pain may be chronic, is arduous to localize and may develop without obvious pathology. Comorbid psychiatric disorders, such as anxiety and depression, coexist and negatively affect this condition. This article presents one case of atypical odontalgia and one of trigeminal neuralgia treated with psychological and psychopharmacological tailored and adapted therapies, after conventional medications had failed. Additionally, an overview of the pathologies related to the challenging differential diagnosis in orofacial pain is given. A 68-year-old man complained of chronic throbbing and burning pain in a maxillary tooth, which worsened upon digital pressure. Symptoms did not abate after amitriptyline therapy; psychological intervention along with antianxiety drug were supplemented and antidepressant agent dosage were incremented. The patient reported improvement and satisfaction with the multidisciplinary approach to his pathology. A 72-year-old man complained of chronic stabbing, intermittent, sharp, shooting and electric shock-like pain in an upper tooth, radiating and following the distribution of the trigeminal nerve. Pain did not recur after psychological intervention and a prescription of antidepressant and antianxiety agents, while carbamazepine therapy had not been sufficient to control pain. Due to concerns with comorbid psychiatric disorders, we adopted a patient-centered, tailored and balanced therapy, favorably changing clinical outcomes. Comorbid psychiatric disorders have a negative impact on orofacial pain, and dentists should consider adopting tailored therapies, such as psychological counselling and behavioral and psychopharmacologic strategies, besides conventional treatments. They also must be familiar with the signs and symptoms of orofacial pain, obtaining a comprehensive view of the pathologies concerning the differential diagnosis. A prompt diagnosis may prevent pain chronicity, avoiding an increase in complexity and a shift to orofacial neuropathic pain and legal claims.
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Affiliation(s)
| | | | - Carlo Alfredo Clerici
- Department of Oncology and Haematology-Oncology,, University of Milano, 20122 Milano, Italy
- Clinical Psychology Unit, Fondazione IRCCS, Istituto Nazionale dei Tumori, 20133 Milano, Italy
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22
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Quiroz VF, Lima JR, Pinotti FE, Marcantonio RA, Marcantonio E, Oliveira GJ. Comparison of osseointegration in areas grafted with deproteinized bovine bone and native bone. A preclinical study. ACTA ODONTOLOGICA LATINOAMERICANA : AOL 2022; 35:3-9. [PMID: 35700535 DOI: 10.54589/aol.35/1/3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 02/01/2022] [Indexed: 06/15/2023]
Abstract
The aim of this study was to evaluate the osseointegration of implants placed in rat tibia sites grafted with Deproteinized Bovine Bone (DBB) and Native Bone (NB). Twenty-eight rats were divided into two groups according to the type of substrate in which the implants were to be placed: NB - implants placed in native bone; DBB - implants placed in areas grafted with DBB. In the DBB group, the bone defect was made and filled with the bone substitute 60 days before placing the implant. The animals were euthanized 15 or 45 days after implant placement. Osseointegration was assessed by the removal torque, volume of mineralized tissues around the implants (BV/TV), bone-implant contact (%BIC), and bone between threads (%BBT). The implants placed in NB presented higher removal torque (8.00 ± 1.26 Ncm vs. 2.33 ± 0.41 Ncm at 15 days and 22.00 ± 2.44 Ncm vs. 4.00 ± 1.41 Ncm at 45 days), higher %BV/TV (47.92 ± 1.54% vs. 33.33 ± 4.77% at 15 days and 70.06 ± 0.91% vs. 39.89±5.90%at 45 days), higher %BIC (39.68 ± 5.02% vs. 9.12 ± 5.56% at 15 days and 83.23 ± 4.42% vs. 18.81 ± 7.21% at 45 days), and higher %BBT (34.33 ± 5.42% vs. 13.24 ± 8.72% at 15 days and 82.33 ± 3.13% vs. 22.26 ± 8.27% at 45 days) than the implants placed in DBB grafted areas. The degree of osseointegration was lower in implants placed in the area grafted with DBB than in NB in rat tibias.
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Affiliation(s)
- Victor F Quiroz
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil
| | - Júlia R Lima
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil
| | - Felipe E Pinotti
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Rosemary Ac Marcantonio
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Elcio Marcantonio
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Guilherme Jpl Oliveira
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil.
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23
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Full Digital Workflow for Prosthetic Full-Arch Immediate Loading Rehabilitation Using OT-Bridge System: A Case Report. PROSTHESIS 2022. [DOI: 10.3390/prosthesis4020021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Nowadays, digital technologies have brought very important advancements in clinical prosthetic dentistry. However, a full digital workflow is still considered to be challenging in the management of full-arch implant cases with immediate prosthetic loading. The aim of this case report is to show a full-digital workflow for the fabrication of an implant-prosthetic fixed provisional prosthesis for immediate loading on seven implants in the upper maxilla. The static guided implant surgery and the OT Bridge prosthetic system were used to rehabilitate the patient. In this way, the combination of a well-known surgical technique with a peculiar prosthetic system that allows for a certain degree of tolerance resulted in it being useful for full-arch immediate loading. Future research and studies are necessary to prove the reliability of this full-digital protocol.
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24
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Applications and Clinical Behavior of BioHPP in Prosthetic Dentistry: A Short Review. JOURNAL OF COMPOSITES SCIENCE 2022. [DOI: 10.3390/jcs6030090] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
(1) Background: BioHPP® (Bredent, UK) is a partially crystalline poly ether ether ketone (PEEK) that is strengthened using ceramic. PEEK and its various formulations represent a very interesting alternative, and has been in-depth with its literature in recent years; (2) Methods: A PubMed and Scopus search for the term “BioHPP” yielded 73 results and 42 articles which were included in this short review. Considering the scarce literature on the subject, each article was considered in this review; (3) Results: the articles analyzed are very recent, all published in the last 5 years. Their clinical evaluation of BioHPP® highlights many positive aspects, and few articles have highlighted critical issues in its multiple clinical applications; (4) Conclusions: this material is not only extremely interesting for the future, but possesses characteristics suitable for clinical application today, for endocrowns, small adhesive bridges, temporary prostheses and for immediate loads on implant restorations. The excellent aesthetics and the possibility of simple reprocessing of the restorations made with this material invite its clinical application.
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25
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Cochran DL, Jones AA, Sugita R, Brown MC, Prasad H, Kay GW. Twelve Month Evaluation of a Novel Mineral Organic Adhesive Material Used to Stabilize Dental Implants Placed in Oversized Osteotomies in Vivo in an Animal Model. Clin Oral Implants Res 2022; 33:391-404. [PMID: 35132693 DOI: 10.1111/clr.13899] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 12/16/2021] [Accepted: 12/27/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To evaluate long-term in vivo stability of dental implants stabilized at time of placement in oversized osteotomies with a novel, self-setting, mineral-organic bone adhesive. MATERIALS/METHODS Canine (26) mandibular teeth were removed, and 3 oversized osteotomies prepared bilaterally. Implants were placed with either adhesive, particulate xenograft or with blood clot filling the implant/osteotomy gaps. Removal torque and histology were assessed. RESULTS The adhesive provided significant and clinically relevant immediate implant stability of 22.2N-cm (95%CI 5.3; 39.0) which continued throughout the early postoperative course and persisted through the nine- (155N-cm 95%CI 113; 197) and twelve-month (171N-cm 95%CI 134.2; 209.4) time points. This is in comparison to the blood clot of 1.4N-cm (95%CI 0.7; 2.1), 128.6N-cm (95%CI 66.8; 190.4), and 140.7N-cm (95%CI 78.8; 202.5) and particulate xenograft, 1.3N-cm (95%CI 0.6; 2.0), 132.1N-cm (95%CI 94.5; 169.7), and 101.5 (95%CI 59.5; 143.5) respectively. Histological examination shows the adhesive establishes intimate contact with the implant and bony walls and is replaced with new bone without compromising stability. Soft tissue does not penetrate the adhesive and marginal bone/biomaterial level is maintained. Control sites filled with xenograft or blood clot heal with reduced bone levels and, in some cases, xenograft particles were encapsulated in connective tissue. CONCLUSIONS Implants placed in oversized osteotomies and lacking primary stability can be stabilized at placement with a novel, highly osteoconductive and resorbable adhesive. Gradual replacement of the biomaterial allows osseointegration without loss of stability through 12 months of follow-up. This novel adhesive has the potential to stabilize implants placed in sites with inadequate bony support.
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Affiliation(s)
- David L Cochran
- Department of Periodontics, UT Health Science Center, San Antonio, TX, USA
| | - Archie A Jones
- Department of Periodontics, UT Health Science Center, San Antonio, TX, USA
| | - Ryushiro Sugita
- Department of Periodontics, UT Health Science Center, San Antonio, TX, USA
| | | | - Hari Prasad
- Hard Tissue Research Laboratory, University of Minnesota, Minneapolis, Minnesota, USA
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26
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Dental Implants in People with Osteogenesis Imperfecta: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031563. [PMID: 35162583 PMCID: PMC8835393 DOI: 10.3390/ijerph19031563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/24/2022] [Accepted: 01/27/2022] [Indexed: 02/06/2023]
Abstract
The aim of this systematic review was to answer the question of whether patients with osteogenesis imperfecta can be prosthetically rehabilitated with dental implants. A protocol was prospectively registered in PROSPERO (CRD42021286368). The inclusion criteria were the presence of osteogenesis imperfecta and the use of implants for prosthetic restorations. Cases in which the inclusion criteria were not met were excluded. PubMed, Web of Science, and Scopus were last searched on 22 August 2021. Quality assessment was performed using the Methodological Quality and Synthesis of Case Series and Case Reports tool. The primary outcome was implant survival. Supporting data were analyzed descriptively. Twelve studies were included. Twenty-three patients received a total number of 116 implants, with 5.0 (±3.8) implants placed per patient. The implant survival rate was 94.0% with a mean follow-up of 59.1 months (±36.1). A limitation of this review was the relatively short follow-up time in some of the included studies; therefore, the survival rate may be overestimated. Nevertheless, the available data showed the loss of only seven implants, with two implants lost due to implant fractures not attributable to the patient. With the limitations of this review and based on the available data, dental implants have a high survival rate in patients with osteogenesis imperfecta. Therefore, dental implants may be a viable treatment option for replacing missing teeth. This research was not funded by external resources.
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27
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Influence of Anodizing Stages on the Preload Force of Implant–Abutment Screws and Their Benefits Regarding the Concept of Immediate Implant Placement—An In Vitro Study. MATERIALS 2022; 15:ma15030776. [PMID: 35160721 PMCID: PMC8837115 DOI: 10.3390/ma15030776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/21/2021] [Accepted: 01/19/2022] [Indexed: 02/05/2023]
Abstract
The tightening torque applied to a screw in a provisional restoration immediately after implant placement in a fresh extraction socket is often too low to gain sufficient preload force. Therefore, abutment screw loosening is a common complication. The aim of this study was to investigate whether it is possible to increase the preload force of a given tightening torque by anodizing parts of the implant–abutment complex. In test group 1 (TG1), only the abutment screw was anodized, in four different stages, whereas in test group 2 (TG2), the abutment and the threaded sleeve were anodized in four anodizing stages (TG2a–TG2d). The control group (CG) consisted of non-anodized components. The results were tested for normal distribution, and the components were subsequently parametrically analyzed using a linear model. Both test groups showed higher preload forces compared to the non-anodized control group. The CG obtained an average preload force of 390 N at a tightening torque of 35 Ncm. Comparable values were already obtained at a tightening torque of 20 to 30 Ncm in TG1c/D and TG2b/d. It can be concluded that anodization of abutment screws and components is an effective measure to increase the preload force of the abutment screws by a given tightening torque.
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28
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CARVALHO JPD, RAMOS UD, SOUSA LGD, VASCONCELOS PBD, MESSORA MR, PALIOTO DB, SOUZA SLSD. Effect of implant crestal position on primary stability before and after loading: an in vitro study. REVISTA DE ODONTOLOGIA DA UNESP 2022. [DOI: 10.1590/1807-2577.04722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract Introduction Primary stability is one of the goals of modern implant dentistry and if achieved, reduces treatment time for prosthetic rehabilitation and the number of interventions made in patients mouth. Several companies state as protocol for connical conection implants, a subcrestally positioning. Objective This in vitro study aimed to evaluate the effect of placing a conical connection implant equicrestally and subcrestally on static and loading condition in two types of bone density. Material and method A total of 200 bone cylinders were extracted from femur of pigs, standardized by means of x-rays and computerized microtomography scan (microCT) and separated in low and high density specimens. The implants were placed on the center of the bone cylinders and were evaluated before and after loading by means of microCT and histomorphometry. Result The results showed that placing the evaluated implant subcrestally provided better primary stability and performance on static and loading situations on low and high density bone. Conclusion Placing implant subcrestally improve primary stability outcomes under loading and static situations.
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29
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Andrade CAS, Paz JLC, de Melo GS, Mahrouseh N, Januário AL, Capeletti LR. Survival rate and peri-implant evaluation of immediately loaded dental implants in individuals with type 2 diabetes mellitus: a systematic review and meta-analysis. Clin Oral Investig 2021; 26:1797-1810. [PMID: 34586502 PMCID: PMC8479496 DOI: 10.1007/s00784-021-04154-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/16/2021] [Indexed: 11/29/2022]
Abstract
Objectives To evaluate the survival rate, success rate, and peri-implant biological changes of immediately loaded dental implants (ILs) placed in type 2 diabetic patients (DM2). Materials and methods The present study was registered on PROSPERO and followed the PRISMA checklist. The search was performed by the first reviewer in January 2021. The electronic databases used were MEDLINE via PubMed, Cochrane, BVS, Web of Science, Scopus, LIVIVO, and gray literature. The risk of bias analysis was performed using an instrument from the Joanna Briggs Institute. Results A total of 3566 titles and abstracts were obtained. The qualitative synthesis included 7 studies, while the quantitative synthesis included 5 studies. The meta-analysis of IL in individuals with DM2 compared to nondiabetic individuals showed no significant difference among the groups regarding the survival rate of dental implants (RR = 1.00, 95% CI 0.96–1.04; p = 0.91; I2 = 0%), even if the patient had poor glycemic control (RR = 1.08, 95% CI 0.87–1.33; p = 0.48; I2 = 70%). Meta-analysis of marginal bone loss in IL compared to conventional loading in DM2 patients also showed no significant difference (mean difference = − 0.08, 95% CI − 0.25–0.08; p = 0.33; I2 = 83%). Conclusions Type 2 diabetes mellitus does not seem to be a risk factor for immediately loaded implants if the glycemic level is controlled, the oral hygiene is satisfactory, and the technical steps are strictly followed. Clinical relevance Rehabilitation in diabetic individuals is more common due to the highest prevalence of edentulism in this population. It is essential to establish appropriate protocols for loading dental implants. Supplementary Information The online version contains supplementary material available at 10.1007/s00784-021-04154-6.
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Affiliation(s)
| | - João Lucas Carvalho Paz
- Department of Periodontology and Implant Dentistry, Universidade Federal de Uberlândia (UFU), Uberlândia, Minas Gerais, Brazil
| | - Gabriel Simino de Melo
- Faculty of Medicine and Dentistry, Postgraduate Department, São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Nour Mahrouseh
- Faculty of Medicine, Department of Public Health and Epidemiology, University of Debrecen, Debrecen, Hajdú-Bihar, Hungary
| | | | - Lucas Raineri Capeletti
- Department of Periodontology and Implant Dentistry, Instituto Aria, Brasília, Distrito Federal, Brazil.,Department of Dentistry, Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brazil
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30
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Does immediate loading of a single implant in the healed anterior maxillary ridge improve the aesthetic outcome compared to conventional loading? BDJ Open 2021; 7:30. [PMID: 34385413 PMCID: PMC8360987 DOI: 10.1038/s41405-021-00083-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/02/2021] [Accepted: 07/13/2021] [Indexed: 11/19/2022] Open
Abstract
Background Immediate loading is an attractive option for avoiding secondary surgery. However, it is unclear whether it provides a better aesthetic outcome compared to conventional loading with implants placed in healed ridges. Aims To compare the aesthetic outcomes of immediately and conventionally loaded single implants in healed anterior maxillary ridges. Methodology A systematic review using PICO was conducted. EMBASE, MEDLINE and DoSS databases were searched. The Cochrane Risk of Bias tool for Randomised Controlled Trials and the Effective Public Health Practice Project tool for other study designs were used for quality appraisal. A narrative synthesis was undertaken. Results A total of 622 articles were identified. After screening, a total of five papers were included. Results indicated no statistically significant difference in pink or white aesthetic scores between the immediate and conventional loading groups at 1- and 5-year review and the Papilla Index at the 1-year review. Conclusion Within the limitations of this review, immediate loading of single implants provides a comparable aesthetic outcome to conventional loading in healed ridges of the anterior maxillary.
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31
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Doornewaard R, Sakani S, Matthys C, Glibert M, Bronkhorst E, Vandeweghe S, Vervaeke S, De Bruyn H. Four-implant-supported overdenture treatment in the maxilla. Part I: A randomized controlled split mouth trial assessing the effect of microthreads and abutment connection type on 4 years peri-implant health. Clin Implant Dent Relat Res 2021; 23:671-679. [PMID: 34378860 DOI: 10.1111/cid.13037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/18/2021] [Accepted: 07/19/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND According to literature, peri-implant bone loss is minimized on implants with microthreaded neck design and internal type of abutment connection. However, most clinical studies may be biased due to confounding factors. PURPOSE This nonblinded RCT assessed the effect of implant neck (microthreaded vs non-microthreaded) as well as the type of abutment connection (internal conical vs external flat-to-flat) on peri-implant bone stability and peri-implant health after at least 36 months. MATERIALS AND METHODS Twenty-five patients were treated with a maxillary implant-supported bar-retained overdenture on four different implant types: internal connection with microthreads (I-MT), internal connection without microthreads (I-NMT), external connection with microthreads (E-MT), and external connection without microthreads (E-NMT). To control confounding factors, all other design features were similar. A linear mixed-model analysis or mixed-model logistic regression analysis was used to determine the effect of implant type on bone level, probing pocket depth, bleeding on probing, and plaque. RESULTS Four out of 98 implants (4.1%) placed in 25 patients failed during provisionalization and were replaced. Mean overall bone loss after 6 months was 0.39 mm (SD 0.62, range 0.00-3.48) with limited additional bone loss of 0.04 mm (SD 0.54, range -1.80-1.63) after at least 3 years. Microthreads or connection type had no effect on the bone level, probing pocket depth, bleeding on probing, nor plaque. CONCLUSIONS With 96% of implant survival, the maxillary overdenture supported with a bar on four implants yield a predictable outcome and the implant-abutment connection type (internal vs external) and implant neck design (microthreaded vs non-microthreaded) have no influence on peri-implant bone remodeling after initial bone remodeling nor up to 4 years of function. Peri-implant bone levels are within international success standards and peri-implant health is indicative of absence of peri-implantitis.
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Affiliation(s)
- Ron Doornewaard
- Department of Periodontology & Oral Implantology, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium.,Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Samir Sakani
- Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium
| | - Carine Matthys
- Department of Periodontology & Oral Implantology, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium
| | - Maarten Glibert
- Department of Periodontology & Oral Implantology, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium
| | - Ewald Bronkhorst
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Stefan Vandeweghe
- Department of Reconstructive Dentistry, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium
| | - Stijn Vervaeke
- Department of Periodontology & Oral Implantology, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium
| | - Hugo De Bruyn
- Department of Periodontology & Oral Implantology, Faculty of Medicine and Health Sciences, Dental School, Ghent University, Ghent, Belgium.,Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
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Windael S, Collaert B, De Buyser S, De Bruyn H, Vervaeke S. Early peri-implant bone loss as a predictor for peri-implantitis: A 10-year prospective cohort study. Clin Implant Dent Relat Res 2021; 23:298-308. [PMID: 34076941 DOI: 10.1111/cid.13000] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 03/06/2021] [Accepted: 04/01/2021] [Indexed: 12/26/2022]
Abstract
PURPOSE To evaluate the effect of early bone loss (EBL), on long-term bone stability and future peri-implantitis development. MATERIALS AND METHODS Patients referred for implant placement between 2005 and 2009 were consecutively treated and followed for 10 years. After 10 years, patients were invited for a scientific diagnostic visit to evaluate implant survival and bone loss. Bone level changes were compared with baseline. Non-parametric testing was performed in cross-tabs (Pearson Chi-square and Fishers's exact test). Kaplan-Meier-estimated survival curves were plotted for different thresholds for EBL at different timepoints. Generalized linear mixed models with binomial distribution and logit link for peri-implantitis were fitted. An adjusted logistic mixed model was made to evaluate peri-implantitis, in relation with smoking status, history of periodontitis, and EBL > 0.5 mm. RESULTS Four hundred and seven patients (mean age of 64.86 years [range 28-92, SD 10.11]), with 1482 implants, responded to the 10-year recall invitation. After an average follow-up time of 10.66 years (range 10-14, SD 0.87), implant survival was 94.74%. Mean crestal bone loss after 10 years was 0.81 mm (SD 1.58, range 0.00-17.00). One hundred and seventy five implants in 76 patients had peri-implantitis (11.8% on implant level, 18.7% on patient level). EBL of 0.5, 1, and 2 mm were significant predictors for peri-implantitis and implant loss after 10 years. Implants with EBL ≥0.5 mm during the first year of function showed a 5.43 times higher odds for future peri-implantitis development. Probability in developing peri-implantitis was 52.06% when smoking, Periodontal history and EBL of >0.5 mm was combined. CONCLUSION The present study suggests that EBL is a predictor for long-term peri-implant pathology, with a significant higher risk for peri-implantitis when early bone loss exceeds the thresholds of 0.5 and 1 mm, especially when additional risk factors such as smoking or susceptibility for periodontal disease prior to implant treatment are present. Clinical trial registration number B670201524796.
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Affiliation(s)
- Simon Windael
- Faculty of Medicine and Health Sciences, School of Dental Medicine, Department of Periodontology and Oral Implantology, Ghent University, Ghent, Belgium
| | - Bruno Collaert
- Center for Periodontology and Implantology Leuven, Heverlee, Belgium
| | - Stefanie De Buyser
- Biostatistics Unit, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Hugo De Bruyn
- Faculty of Medicine and Health Sciences, School of Dental Medicine, Department of Periodontology and Oral Implantology, Ghent University, Ghent, Belgium.,Radbound University Medical Center, Implantology and Periodontology, Nijmegen, The Netherlands.,Department of Prosthodontics, University of Malmö, Malmö, Sweden
| | - Stijn Vervaeke
- Faculty of Medicine and Health Sciences, School of Dental Medicine, Department of Periodontology and Oral Implantology, Ghent University, Ghent, Belgium.,Private Practice Periodontology and Oral Implantology, Geluwe, Belgium
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Liu W, Cai H, Zhang J, Wang J, Sui L. Effects of immediate and delayed loading protocols on marginal bone loss around implants in unsplinted mandibular implant-retained overdentures: a systematic review and meta-analysis. BMC Oral Health 2021; 21:122. [PMID: 33731092 PMCID: PMC7968211 DOI: 10.1186/s12903-021-01486-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 03/04/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Immediate loading has recently been introduced into unsplinted mandibular implant-retained overdentures for the management of edentulous patients due to their increasing demand on immediate aesthetics and function. However, there is still a scarcity of meta-analytical evidence on the efficacy of immediate loading compared to delayed loading in unsplinted mandibular implant-retained overdentures. The purpose of this study was to compare the marginal bone loss (MBL) around implants between immediate and delayed loading of unsplinted mandibular implant-retained overdentures. METHODS Randomized controlled trials (RCTs), controlled clinical trials (CCTs), and cohort studies quantitatively comparing the MBL around implants between immediate loading protocol (ILP) and delayed loading protocol (DLP) of unsplinted mandibular overdentures were included. A systematic search was carried out in PubMed, EMBASE, and CENTRAL databases on December 02, 2020. "Grey" literature was also searched. A meta-analysis was conducted to compare the pooled MBL of two different loading protocols of unsplinted mandibular overdentures through weighted mean differences (WMDs) with 95% confidence intervals (95% CIs). The subgroup analysis was performed between different attachment types (i.e. Locator attachment vs. ball anchor). The risk of bias within and across studies were assessed using the Cochrane Collaboration's tool, the Newcastle-Ottawa scale, and Egger's test. RESULTS Of 328 records, five RCTs and two cohort studies were included and evaluated, which totally contained 191 participants with 400 implants. The MBL of ILP group showed no significant difference with that of DLP group (WMD 0.04, CI - 0.13 to 0.21, P > .05). The subgroup analysis revealed similar results with Locator attachments or ball anchors (P > .05). Apart from one RCT (20%) with a high risk of bias, four RCTs (80%) showed a moderate risk of bias. Two prospective cohort studies were proved with acceptable quality. Seven included studies have reported 5.03% implant failure rate (10 of 199 implants) in ILP group and 1.00% failure rate (2 of 201 implants) in DLP group in total. CONCLUSIONS For unsplinted mandibular implant-retained overdentures, the MBL around implants after ILP seems comparable to that of implants after DLP. Immediate loading may be a promising alternative to delayed loading for the management of unsplinted mandibular implant-retained overdentures. PROSPERO registration number: CRD42020159124.
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Affiliation(s)
- Wei Liu
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - He Cai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, No. 14, Section 3, South Renmin Road, Chengdu, 610041, China
| | - Junjiang Zhang
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Jian Wang
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, South Renmin Road, Chengdu, 610041, China
| | - Lei Sui
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China.
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Using the "One Shot" Concept for Immediate Loading Implant Protocol in Edentulous Patient Rehabilitation with a Fixed Prosthesis: A 6-Year Follow-Up. Case Rep Dent 2021; 2021:8872277. [PMID: 33708449 PMCID: PMC7929691 DOI: 10.1155/2021/8872277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 01/26/2021] [Accepted: 02/01/2021] [Indexed: 11/17/2022] Open
Abstract
Immediate-loaded implants with a fixed prosthesis are a viable option for the restoration of edentulous ridges. Several procedures now allow for the fabrication of immediate-loading provisional and definitive prostheses. However, this complex treatment is not accessible to all patients with budget restrictions. By using a unique master model with a single titanium framework prosthesis can simplify and shorten the treatment, as well as reduce costs. After surgical placement of implant fixtures, an interim prosthesis was fabricated using a laser-welded definitive titanium framework. The prosthesis was fitted intraorally following the immediate loading protocols. The master cast model used to fabricate interim prosthesis was conserved and subsequently used in modifying the final prosthesis. After the healing process and complete soft tissue stability, an impression was made to register the clearance between the gingiva and resin. The light silicone material was directly injected under the prosthesis screwed in the mouth. In the master cast model, the stone was eliminated between the implants and a new plaster was poured to modify the crest profile with the posthealing new shape. With this modified model, it is possible to rehabilitate the denture to the new gingival anatomy in 3 to 4 hours and, if necessary, the tooth rearrangement. This "one shot" concept combines the single definitive titanium welded framework and limited laboratory work with a unique master model thereby decreasing the cost and the time of treatment.
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A Radiographic and Clinical Comparison of Immediate vs. Early Loading (4 Weeks) of Implants with a New Thermo-Chemically Treated Surface: A Randomized Clinical Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031223. [PMID: 33572988 PMCID: PMC7908367 DOI: 10.3390/ijerph18031223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/11/2021] [Accepted: 01/26/2021] [Indexed: 01/18/2023]
Abstract
Background: Implant dentistry has evolved over time, resulting in better treatment outcomes for both patients and clinicians. The aim of this trial was to test whether the immediate loading of implants with a platform-switching design influences the marginal bone level, compared to four-week loading, after one year of follow-up. Moreover, a comparison of clinical data regarding implant survival, implant stability, and patient-reported outcome measures (PROMs) was conducted. Methods: Klockner® VEGA® implants with a ContacTi® surface were placed in partially edentulous patients in the posterior areas. Group A received an immediately loaded prosthesis (one week) and Group B received an early-loaded prosthesis (four weeks). All abutments were placed at the time of surgery. Radiographic and clinical data were recorded. Results: Twenty-one patients were treated (35 implants). No implants were lost during the study. The final marginal bone level did not show differences between groups. The bone loss at 12 months at the implant level was 0.00 mm for both groups (median). The final implant quotient stability (ISQ) values did not differ between groups (median 73 and 70.25), nor did the other clinical parameters or PROMs. Conclusions: The results suggest that neither of the loading protocols with the implants used influenced the marginal bone level—not the osseointegration rate, clinical conditions, or PROMs.
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Ye M, Liu W, Cheng S, Yan L. Immediate vs conventional loading of mandibular overdentures: A comprehensive systematic review and meta-analysis of randomized controlled trials. J ORAL IMPLANTOL 2020; 48:64-73. [PMID: 33206979 DOI: 10.1563/aaid-joi-d-20-00265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Clinicians treating overdenture patients need to know if immediate loading and conventional loading results in similar outcomes. This study aimed to perform a systematic literature search of studies comparing immediate and conventional loading of mandibular overdentures irrespective of the number of implants and conduct a meta-analysis of implant failure and marginal bone loss (MBL). A literature search of PubMed, ScienceDirect, Ovoid, Springer, and Google Scholar databases was performed for randomized controlled trials (RCTs) comparing immediate vs conventional loading of mandibular overdentures. The primary outcome was implant failure and the secondary outcome was marginal bine loss (MBL). A descriptive analysis was performed for other outcomes. Thirteen trials were included. Only one trial compared the immediate and delayed loading of single implant-supported overdenture. Seven trials used two implants, one trial used three implants while four trials used four implants. Meta-analysis indicated no statistically significant difference in implant failure and MBL between immediate and conventional loading of two-implant and four-implant supported overdentures. Descriptive analysis indicated no difference in peri-implant tissue indices, implant stability, and quality of life outcomes between the two loading protocols.There may be no difference in implant failure and MBL with immediate loading or conventional loading of two and four-implant supported mandibular overdentures. Literature review indicates that there may be no difference in peri-implant tissue indices, implant stability, and QoL outcomes between the two loading protocols. The overall quality of evidence is moderate. Further, adequately powered RCTs are required to strengthen the evidence.
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Affiliation(s)
- Mingfu Ye
- Stomatological Hospital of Xiamen Medical College, Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment Department of Oral Implantology No. 1309, Lvling Road CHINA Xiamen Fujian 361008 Department of Oral Implantology, Stomatological Hospital of Xiamen Medical College, Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment
| | - Wenjun Liu
- Department of Oral Implantology, Stomatological Hospital of Xiamen Medical College, Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment
| | - Shaolong Cheng
- Department of Oral Implantology, Stomatological Hospital of Xiamen Medical College, Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment
| | - Lihui Yan
- Department of Oral Implantology, Stomatological Hospital of Xiamen Medical College, Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment
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Pariente L, Dada K, Daas M, Linder S, Dard M. Evaluation of the Treatment of Partially Edentulous Patients With Bone Level Tapered Implants: 24-Month Clinical and Radiographic Follow-Up. J ORAL IMPLANTOL 2020; 46:407-413. [PMID: 32315416 DOI: 10.1563/aaid-joi-d-19-00024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this case series was to assess, over a period of 24 months, the clinical and radiographic outcomes in partially edentulous patients receiving bone-level tapered implants. In total, 33 partially edentulous patients and 50 implants were evaluated. Patients received single or multiple implants in the posterior maxilla. Clinical and radiographic measurements of vertical bone levels were assessed at surgery, at loading, and 6, 12, and 24 months after surgery. The success and survival rates of the implants were also evaluated. Within the 24-month follow-up, only 1 implant failed (2.0%). Other biological or technical complications were not observed. The mean insertion torque was 34 ± 5.3 Ncm. Bone-level changes of 0.35 ± 0.23 mm were found between surgery and 12 months after surgery, and changes of 0.03 ± 0.05 mm were found between 12 months and 24 months after surgery. The overall change from surgery to 24 months after implant placement was 0.38 ± 0.24 mm. Most of the bone loss occurred between surgery and 3 months (0.28 ± 0.19 mm; P < .001); thereafter, the loss was minimal and statistically nonsignificant. Bone-level tapered implants yielded a high survival and success rate with minimal bone-level changes. Tapered implants could be considered as a predictable treatment option for partially edentulous patients with different types of bone qualities and loading protocols.
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Affiliation(s)
| | | | - Marwan Daas
- Private practice, Paris, France.,Department of Prosthodontics and Implant Dentistry, University Hospital Louis-Mourier, Colombes, France
| | | | - Michel Dard
- Institute Straumann AG, Basel, Switzerland.,Section of Oral, Diagnostic and Rehabilitation Sciences, College of Dental Medicine, Columbia University, New York, NY
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Shimoo Y, Uesugi T, Hiruta M, Ishiura Y, Nakayama K, Watanabe T, Yamada K, Hirouchi H, Yamamoto M, Matsunaga S, Abe S. Extraction of Maxillary Impacted Teeth with Simultaneous Immediate Full Mouth Loading Using Long Implant: A Case Report. THE BULLETIN OF TOKYO DENTAL COLLEGE 2020; 61:135-143. [PMID: 32507778 DOI: 10.2209/tdcpublication.2019-0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Here, we describe the provision of an implant-supported prosthesis in a patient with impacted teeth in the maxilla, which complicated implant placement and necessitated utilization of the extraction sockets of previously impacted teeth and residual submerged roots. The patient was a 63-year-old man who visited our clinic with the chief complaint of difficulty in mastication. Numerous residual roots were observed in the maxilla, and radiographic imaging revealed that the residual roots of teeth #13 and #16 were fully impacted. The patient complained of a strong sensation of a foreign body in the area of a denture support overlying these residual roots. Therefore, the impacted teeth were extracted, 5 implants placed, and a temporary prosthesis provided. Given the necessity of placing the implant through the extraction socket of the impacted canine (#13), favorable initial stability was achieved using a long (>20 mm) implant. Moreover, autogenous bone obtained by osteotomy was grafted onto the extracted impacted tooth socket. The clinical condition was stable at approximately 1 year after implant placement and so the final prosthesis was delivered, with periodic check-ups being performed every 3 months thereafter. After 4 years, the patient has reported no symptoms. Clinically, there are no signs of inflammation, and the postoperative condition is deemed to be very favorable.
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Herrero-Climent M, Lemos BF, Herrero-Climent F, Falcao C, Oliveira H, Herrera M, Gil FJ, Ríos-Carrasco B, Ríos-Santos JV. Influence of Implant Design and Under-Preparation of the Implant Site on Implant Primary Stability. An In Vitro Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17124436. [PMID: 32575702 PMCID: PMC7345708 DOI: 10.3390/ijerph17124436] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/16/2020] [Accepted: 06/18/2020] [Indexed: 12/12/2022]
Abstract
The aim of this study was to evaluate the effects of different implant sites an under-preparation sequence associated with two different implant designs on implant primary stability measured by two parameters: insertion torque (IT) and implant stability quotient (ISQ). It used two different implants: one cylindrical as a control and another one with a tapered design. The implants were inserted in type III fresh humid bovine bone and four drilling sequences were used: one control, the one proposed by the implant company (P1), and three different undersized (P2, P3 and P4). P2 was the same as P1 without the cortical drill, P3 was without the last pilot drill and P4 was without both of them. The sample size was n = 40 for each of the eight groups. Final IT was measured with a torquemeter and the ISQ was measured with Penguin resonance frequency analysis. Results showed that both ISQ and IT have a tendency to increase as the preparation technique reduces the implant site diameter when compared with the standard preparation, P1. The preparations without cortical drill, P2 and P4, showed the best results when compared with the ones with a cortical drill. Tapered implants always showed higher or the same ISQ and IT values when compared with the cylindrical implants. Giving the limitations of this study, it can be concluded that reducing implant preparation can increase IT and ISQ values. Removing the cortical drill and the use of a tapered design implant are also effective methods of increasing primary implant stability.
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Affiliation(s)
| | - Bernardo Ferreira Lemos
- Porto Dental Institute, 4150-518 Porto, Portugal; (M.H.-C.); (B.F.L.); (C.F.)
- Faculty of Health Sciences, Fernando Pessoa University, 4249-004 Porto, Portugal;
| | | | - Carlos Falcao
- Porto Dental Institute, 4150-518 Porto, Portugal; (M.H.-C.); (B.F.L.); (C.F.)
- Faculty of Health Sciences, Fernando Pessoa University, 4249-004 Porto, Portugal;
| | - Helder Oliveira
- Faculty of Health Sciences, Fernando Pessoa University, 4249-004 Porto, Portugal;
| | - Manuela Herrera
- Department of Stomatology, University of Seville, 41009 Seville, Spain;
| | - Francisco Javier Gil
- Faculty of Dentistry, International University of Catalonia, 08017 Barcelona, Spain;
| | | | - José-Vicente Ríos-Santos
- Department of Periodontology, University of Seville, 41009 Seville, Spain;
- Correspondence: ; Tel.: +34-954481121
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Manacorda M, Poletti de Chaurand B, Merlone A, Tetè G, Mottola F, Vinci R. Virtual Implant Rehabilitation of the Severely Atrophic Maxilla: A Radiographic Study. Dent J (Basel) 2020; 8:dj8010014. [PMID: 32024286 PMCID: PMC7148484 DOI: 10.3390/dj8010014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 01/21/2020] [Accepted: 01/21/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Advanced maxillary atrophy is one of the most common clinical scenarios where implant placement could become difficult. Nevertheless, a volumetric evaluation using a suitable diagnostic software could facilitate the implant planning. The purpose of the present study is to suggest the potential application of the maxillary retro-canine area as the designated location for virtual tilted implants. METHODS A sample of Cone Beam Computed Tomography (CBCT) images from the Department of Dentistry (IRCSS San Raffaele, Milan, Italy) was evaluated. After a 3D anatomical evaluation, tilted implants were virtually positioned in the retro-canine regions. All the implants were inserted using the same procedure at 30° and 45° degrees of tilting. The length, palatal angulation and diameter of the placed implant were identified. RESULTS A total of 220 tilted implants were placed. An average implant measurement of 13.51 mm in length and 3.42 mm in diameter were calculated. Additionally, an average buccal-palatal angulation of 6° was identified. Upon statistical analysis, the implant length was found to be significantly higher at 45° degrees of mesio-distal angulation than at 30° degrees (<0.0001). CONCLUSIONS A considerable number of patients show a significant degree of bone atrophy. The implant-supported treatment plan can rely on three-dimensional imaging of the residual bone as a guiding tool to establish the most effective implant position for each specific case. In this study, it was found that an implant could have a greater length if its mesio-distal angulation was more accentuated. In addition, owing to the volumetric evaluation, it was possible to virtually insert tilted implants in almost all of the cases of atrophy. This could lead clinicians to consider the retro-canine area as a viable place to insert a longer tilted implant.
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Influence of Implant Length and Associated Parameters Upon Biomechanical Forces in Finite Element Analyses: A Systematic Review. IMPLANT DENT 2019; 28:296-305. [PMID: 31124827 DOI: 10.1097/id.0000000000000879] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE The aim of this systematic review is to provide an overview of finite element analyses comparing standard and short dental implants concerning biomechanical properties and to detect the most relevant parameters affecting periimplant stress concentrations. MATERIAL AND METHODS After screening the literature and assessment of studies, 36 studies were included in this review. RESULTS Eighty-three percent of the studies state that short dental implants have to bear higher stress concentrations compared with standard length implants. At the same time, 44% of articles note that implant diameter can be considered a more effective design parameter than implant length to reduce stress concentrations and to avoid an overload of periimplant bone. Regardless of implant dimension, in all studies, the highest stress concentrations are found in the cortical section around the upper part of the implant. CONCLUSIONS Unaffected of bone quality, implant diameter is found to play a key role to minimize periimplant stress concentrations. Concerning stress reduction implant length gains increasing relevance with decreasing bone density. Furthermore, splinting of short implants constitute an appropriate tool to avoid crestal overloading.
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Chen J, Cai M, Yang J, Aldhohrah T, Wang Y. Immediate versus early or conventional loading dental implants with fixed prostheses: A systematic review and meta-analysis of randomized controlled clinical trials. J Prosthet Dent 2019; 122:516-536. [PMID: 31421892 DOI: 10.1016/j.prosdent.2019.05.013] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 01/23/2023]
Abstract
STATEMENT OF PROBLEM Immediate loading of dental implants has gained widespread popularity because of its advantages in shortening treatment duration and improving esthetics and patient acceptance. However, whether immediate loading can achieve clinical outcomes comparable with those of early or conventional delayed loading is still unclear. PURPOSE The purpose of this systematic review and meta-analysis was to compare the efficacy of immediate loading versus early or conventional loading implants in patients rehabilitated with fixed prostheses. MATERIAL AND METHODS Electronic searches of CENTRAL, EMBASE, and MEDLINE were supplemented by manual searches up to October 2018. Only human randomized controlled trials (RCTs) comparing immediate with early or conventional loading dental implants were included. Quality assessment was performed by using the Cochrane Collaboration tool. For the meta-analysis, the dichotomous and continuous variables were pooled and analyzed by using risk ratios (RRs) and weighted mean differences (WMDs), with 95% confidence intervals (95% CIs). The outcomes assessed included survival rate, marginal bone level changes, peri-implant gingival level, probing depth, and implant stability. The subgroup analyses included healing methods, implant time, occlusal contact, number of missing teeth, and tooth position. RESULTS Thirty-nine trials (49 articles) were included from the initial 763 references evaluated. When compared with conventional loading, with implants regarded as a statistical unit, a statistically significant lower survival rate was observed in the immediate loading dental implant (RR=0.974; 95% CI, 0.954, 0.994; P=.012). Regarding other outcomes, including marginal bone level changes, peri-implant gingival level, probing depth, and implant stability, no statistically significant differences were observed when comparing immediate versus early or conventional loading (P>.05). CONCLUSIONS Compared with early loading, immediate loading could achieve comparable implant survival rates and marginal bone level changes. Compared with conventional loading, immediate loading was associated with a higher incidence of implant failure.
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Affiliation(s)
- Jie Chen
- Postgraduate student, Department of Prosthodontics, Guanghua School of Stomatology & Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, PR China
| | - Min Cai
- Predoctoral student, Department of Prosthodontics, Guanghua School of Stomatology & Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, PR China
| | - Jiajun Yang
- Postgraduate student, Department of Prosthodontics, Guanghua School of Stomatology & Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, PR China
| | - Taghrid Aldhohrah
- Postgraduate student, Department of Prosthodontics, Guanghua School of Stomatology & Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, PR China
| | - Yan Wang
- Professor, Department of Prosthodontics, Guanghua School of Stomatology & Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, PR China.
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Vogl S, Stopper M, Hof M, Theisen K, Wegscheider WA, Lorenzoni M. Immediate occlusal vs nonocclusal loading of implants: A randomized prospective clinical pilot study and patient centered outcome after 36 months. Clin Implant Dent Relat Res 2019; 21:766-774. [PMID: 31062517 PMCID: PMC6767417 DOI: 10.1111/cid.12770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 03/06/2019] [Accepted: 03/06/2019] [Indexed: 11/30/2022]
Abstract
Background Immediate provisionalization reduces chair time and improves patient comfort. Purpose To analyze immediate functional loading vs nonfunctional loading with restorations in the posterior mandible for marginal bone defects, implant success/survival, and patient satisfaction. Materials and Methods A randomized controlled clinical trial was designed to assess these parameters based on 20 adult patients who underwent implant surgery, followed by immediate delivery of screw‐retained or cemented single or splinted restorations in full occlusal contact or in infraocclusion (test and control group). A questionnaire with visual analog scales was used to assess patient satisfaction. Results Following 36‐month data were evaluable for 9 patients (21 implants) in the study group (immediate functional loading) and for 10 patients (31 implants) in the control group (immediate nonfunctional loading). One implant in the control group was lost, hence the overall implant survival and success rate was 98.2%. Marginal bone defects were consistent with previous studies and comparable in both groups. Periotest values did not significantly change from baseline and the 12‐month follow‐up (Friedmann test). Patient satisfaction was high and did not involve any significant intergroup differences (Mann‐Whitney U‐test). Conclusions Both types of immediate provisional restorations are viable in selected patients. Larger randomized controlled trials are needed to establish immediate functional loading as a standard treatment for partially edentulous jaws.
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Affiliation(s)
- Susanne Vogl
- Division of Operative dentistry, Periodontology and Prosthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria
| | - Marlene Stopper
- Division of Operative dentistry, Periodontology and Prosthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria
| | - Markus Hof
- Department of Oral Surgery, Dental Clinics, Faculty of Medicine at the Sigmund Freud University, Vienna, Austria
| | - Kerstin Theisen
- Division of Operative dentistry, Periodontology and Prosthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria
| | - Walther A Wegscheider
- Division of Operative dentistry, Periodontology and Prosthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria
| | - Martin Lorenzoni
- Division of Operative dentistry, Periodontology and Prosthodontics, Department of Dental Medicine and Oral Health, Medical University of Graz, Graz, Austria
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44
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Del Giudice R, Piattelli A, Grande NM, Cataneo E, Crispino A, Petrini M. Implant insertion torque value in immediate loading: A retrospective study. Med Oral Patol Oral Cir Bucal 2019; 24:e398-e403. [PMID: 31011142 PMCID: PMC6530943 DOI: 10.4317/medoral.22845] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 03/01/2019] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND The aim of this study is to verify if the Insertion Torque Value (ITV) of 32 Ncm for immediate loading protocol (ILP), as indicated by literature, is still, with the advance in implant research, a real significant cut-off for long-term implant survival. MATERIAL AND METHODS In this retrospective study, data from 224 patients that during three years of clinical practice, were submitted to the insertion of 322 implants with immediate loading protocol, have been recorded, pooled and analyzed. Data were organized based on Insertion Torque Value (ITV): > 32 Ncm (CG) and < 32 Ncm (LTG) and two different groups of equal sample size, 161 implants each, were distinguished. Crestal bone reabsorption, and the implant failure rate were evaluated after 2-years of follow-up. RESULTS The bone reabsorption in LTG (0.49 ± 0.11 mm ) was significantly greater than CG (0.22 ± 0.04 mm), p<0.001. However, the survival rate after 2-years of follow-up was quite high and similar for both groups: 96.89% for LTG and 97.52% for CG and no statistically significant differences have been found among the two groups for the implant failure rate (p=0.455).The Odds Ratio (OR) of implant failure was of 1.258 (95% CI 0.332, 4.772), but results were not statistical significant, p=0.740. CONCLUSIONS The present study showed that although implants with ITV> 32 Ncm are still characterized by a lower crestal bone resorption, there are no statistically significant differences among the two groups for what concerning the failure rate during the 2 years of follow-up and OR. These results permit us to suppose that the cut-off of ITV >32 Ncm for immediate loading implants, could be reduced to inferior values. However further studies are necessary to indicate precise clinical guidelines.
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Affiliation(s)
- R Del Giudice
- Department of Medical Oral and Biotechnological Sciences, University of Chieti - Italy, Address: Via Vestini 31, 66013 Chieti, Italy,
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45
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Oh KC, Paik J, Kim JH. Esthetic Rehabilitation of Maxillary Anterior Teeth, Including an Immediate Provisionalization with an Implant-Supported Fixed Dental Prosthesis. J Clin Med 2019; 8:jcm8040428. [PMID: 30925756 PMCID: PMC6518017 DOI: 10.3390/jcm8040428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/21/2019] [Accepted: 03/25/2019] [Indexed: 01/22/2023] Open
Abstract
This report describes the case of a patient who required rehabilitation of their maxillary anterior teeth following a traumatic injury through a physical altercation. The decision was made to extract the maxillary central incisors and maxillary right lateral incisor, perform immediate implantation on the maxillary right lateral incisor and left central incisor areas, and place a three-unit immediate provisional restoration. Predesigned virtual teeth enabled efficient fabrication of the immediate provisional restoration following the implant placement. After a sufficient healing period with periodic check-ups, final impressions were made using a digital approach, with meticulous care taken to preserve the gingival architecture around the sites of rehabilitation. Thus, the custom abutments and definitive restoration were placed without eliciting an uncomfortable feeling in the patient. Both esthetic and functional outcomes were satisfactory. Reduced soft tissue volume around the implant restoration was observed, primarily within the two months post-extraction/implantation, based on superimposition of the serial scan data. Soft tissue volume changes in the present case suggest the need for controlled clinical studies of three-dimensional changes of gingival contours after extraction and/or implantation.
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Affiliation(s)
- Kyung Chul Oh
- Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea.
| | - Jeongwon Paik
- Department of Periodontics, Yonsei University College of Dentistry, Seoul 03722, Korea.
| | - Jee-Hwan Kim
- Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea.
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46
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Kashani H, Hilon J, Rasoul MH, Friberg B. Influence of a single preoperative dose of antibiotics on the early implant failure rate. A randomized clinical trial. Clin Implant Dent Relat Res 2019; 21:278-283. [DOI: 10.1111/cid.12724] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 12/27/2018] [Accepted: 01/08/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Hossein Kashani
- Faculty of Odontology, Department of Oral & Maxillofacial SurgeryUniversity of Göteborg Gothenburg Sweden
| | - Jack Hilon
- Faculty of Odontology, Department of Oral & Maxillofacial SurgeryUniversity of Göteborg Gothenburg Sweden
| | - Mahdi Hasan Rasoul
- Faculty of Odontology, Department of Oral & Maxillofacial SurgeryUniversity of Göteborg Gothenburg Sweden
| | - Bertil Friberg
- The Brånemark Clinic, Public Dental Health Service Västra Götaland Sweden
- Department of Biomaterials, Institute for Surgical SciencesUniversity of Göteborg Gothenburg Sweden
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47
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Lanis A, Alvarez del Canto O, Barriga P, Polido WD, Morton D. Computer‐guided implant surgery and full‐arch immediate loading with prefabricated—metal framework—provisional prosthesis created from a 3D printed model. J ESTHET RESTOR DENT 2019; 31:199-208. [DOI: 10.1111/jerd.12458] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 11/07/2018] [Accepted: 12/27/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Alejandro Lanis
- Prosthodontics and Implant Dentistry DepartmentPontificia Universidad Católica de Chile Santiago Chile
- Private Practice Santiago Chile
| | | | - Patricio Barriga
- Private Practice Santiago Chile
- Department of Oral ImplantologyUniversidad San Sebastián Santiago Chile
| | - Waldemar Daudt Polido
- Department of Oral and Maxillofacial SurgeryIndiana University School of Dentistry Indianapolis Indiana
| | - Dean Morton
- Department of ProsthodonticsIndiana University School of Dentistry Indianapolis Indiana
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48
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Donos N, Horvath A, Calciolari E, Mardas N. Immediate provisionalization of bone level implants with a hydrophilic surface. A five-year follow-up of a randomized controlled clinical trial. Clin Oral Implants Res 2019; 30:139-149. [PMID: 30584682 DOI: 10.1111/clr.13400] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 12/14/2018] [Accepted: 12/16/2018] [Indexed: 01/12/2023]
Abstract
OBJECTIVES To follow-up the radiographic bone level changes and the clinical outcomes of immediately provisionalized and conventionally restored implants with a hydrophilic surface following 5 years of function. MATERIALS AND METHODS This was a 5-year follow-up of a prospective, randomized, single-blind controlled study involving 16 of the 24 originally recruited patients in need of a single-tooth replacement in the esthetic area. Implants were either immediately provisionalized with a non-occluding temporary crown (test group, n = 7), or left without a crown (control group, n = 9). In both groups, the definitive restoration was placed 16 weeks after implant placement. Radiographic and clinical parameters were evaluated at 36, 48, and 60 months post-implant placement, together with implant survival and success rates. The esthetic outcomes were measured with the Papilla Fill Index (PFI) and the Pink Esthetic Score (PES). RESULTS At 60 months, similar peri-implant bone loss was observed in the test (-0.42 mm ±0.17 mm) and in the control (-0.37 mm ±0.35 mm) groups. A tendency for an improved esthetic outcome from implant loading to the subsequent follow-ups was noticed in both groups. Both groups presented with high levels of long-term implant survival and success. CONCLUSIONS This study supports non-functional immediate provisionalization as a viable long-term option for the management of single-tooth implants in the esthetic area. However, the small sample size does not allow statistical inference at 60 months of follow-up and future adequately powered studies are warranted.
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Affiliation(s)
- Nikolaos Donos
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Medicine & Dentistry, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Medicine & Dentistry, Queen Mary University of London (QMUL), London, UK
| | - Attila Horvath
- Department of Periodontology, Semmelweis University, Budapest, Hungary
| | - Elena Calciolari
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Medicine & Dentistry, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Medicine & Dentistry, Queen Mary University of London (QMUL), London, UK
| | - Nikos Mardas
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Medicine & Dentistry, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Medicine & Dentistry, Queen Mary University of London (QMUL), London, UK
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49
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Bielemann AM, Marcello‐Machado RM, Schuster AJ, Chagas Júnior OL, Del Bel Cury AA, Faot F. Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures: A randomized clinical trial. J Periodontal Res 2018; 54:241-250. [DOI: 10.1111/jre.12624] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 08/25/2018] [Accepted: 09/30/2018] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | - Otacílio Luiz Chagas Júnior
- Department of Oral and Maxillofacial Surgery and Maxillofacial ProsthodonticsSchool of DentistryFederal University of Pelotas Pelotas Brazil
| | - Altair Antoninha Del Bel Cury
- Department of Prosthodontics and PeriodontologyPiracicaba Dental SchoolState University of Campinas Piracicaba Brazil
| | - Fernanda Faot
- Department of Restorative DentistrySchool of DentistryFederal University of Pelotas Pelotas Brazil
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50
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Implant-Supported PMMA Monolithic Full-Arch Rehabilitation with Surgical Computer-Planned Guide and Immediate Provisional: A Case Report with One Year Follow-Up. Case Rep Dent 2018; 2018:9261276. [PMID: 29808130 PMCID: PMC5902124 DOI: 10.1155/2018/9261276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 02/08/2018] [Accepted: 02/20/2018] [Indexed: 11/17/2022] Open
Abstract
The aim of this case report is to describe the surgical and prosthetic procedures to achieve maxillary and mandibular implant-supported PMMA monolithic full-arch rehabilitation (PMFR) with surgical computer-planned guide and immediate provisional. In such cases, the correct planning of dental implants' position, length, and diameter and the prosthetic phases via computer-aided design are very important to achieve good aesthetic and functional long-lasting results.
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