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Martinello PA, Cartagena-Molina AF, Capelletti LK, Fernandes BV, Franco APGDO, Mercuri EGF, Bombarda NHC. Adding mechanobiological cell features to finite element analysis of an immediately loaded dental implant. Eur J Oral Sci 2024; 132:e12992. [PMID: 38771146 DOI: 10.1111/eos.12992] [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: 01/19/2024] [Accepted: 04/25/2024] [Indexed: 05/22/2024]
Abstract
Finite element analysis (FEA) has been used to analyze the behavior of dental materials, mainly in implantology. However, FEA is a mechanical analysis and few studies have tried to simulate the biological characteristics of the healing process of loaded implants. This study used the rule of mixtures to simulate the biological healing process of immediate implants in an alveolus socket and bone-implant junction interface through FEA. Three-dimensional geometric models of the structures were obtained, and material properties were derived from the literature. The rule of mixtures was used to simulate the healing periods-immediate and early loading, in which the concentration of each cell type, based on in vivo studies, influenced the final elastic moduli. A 100 N occlusal load was simulated in axial and oblique directions. The models were evaluated for maximum and minimum principal strains, and the bone overload was assessed through Frost's mechanostat. There was a higher strain concentration in the healing regions and cortical bone tissue near the cervical portion. The bone overload was higher in the immediate load condition. The method used in this study may help to simulate the biological healing process and could be useful to relate FEA results to clinical practice.
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Affiliation(s)
| | - Andrés Felipe Cartagena-Molina
- Department of Dentistry, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
- Department of Dentistry, State University of Londrina, Londrina, Paraná, Brazil
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2
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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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Imber JC, Roccuzzo A, Irani DR, Bellón B, Bosshardt DD, Sculean A, Pippenger BE. Histological evaluation of osseointegration between conventional and novel bone-level tapered implants in healed bone-A preclinical study. J Periodontal Res 2024. [PMID: 38764144 DOI: 10.1111/jre.13285] [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: 03/13/2024] [Revised: 04/10/2024] [Accepted: 04/24/2024] [Indexed: 05/21/2024]
Abstract
AIMS To histologically compare osseointegration and crestal bone healing between newly introduced tapered, self-cutting bone-level test implants and tapered bone-level control implants in sites with fully healed sites. METHODS Sixty-six implants (33 test, 33 control) were placed 1 mm subcrestally in a minipig model and underwent qualitative histologic and quantitative histometric analyses after 3, 6 and 12 weeks of submerged healing. The primary and secondary outcomes were the bone-to-implant contact (BIC) and first bone-to-implant contact (fBIC). Outcomes between the test and control implants were statistically compared. RESULTS The BIC values of the test implants were comparable and non-inferior over the time points studied, except for the 12 weeks time point which showed statistically significantly higher BIC values of the test (88.07 ± 5.35%) compared to the control implants (80.88 ± 7.51%) (p = .010). Similarly comparable and non-inferior were the fBIC values, except for the 6-week outcome, which showed statistically higher values for the test (-546.5 ± 450.80 μm) compared to the control implants (-75.7 ± 100.59 μm). fBIC results for the test implants were qualitatively more stable and consistent between test time points. CONCLUSION Novel self-cutting bone-level test implants demonstrated superior osseointegration and similar bone levels compared to conventional bone-level implants after a healing period of 12 weeks in healed ridges.
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Affiliation(s)
- Jean-Claude Imber
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Andrea Roccuzzo
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Delia R Irani
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Benjamin Bellón
- Department of Preclinical Research, Institut Straumann, Basel, Switzerland
- Faculty of Medicine and Health Technology, University of Tampere, Tampere, Finland
- Department of Periodontology, Faculty of Dentistry, University of Zurich, Zurich, Switzerland
| | - Dieter D Bosshardt
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Benjamin E Pippenger
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Preclinical Research, Institut Straumann, Basel, Switzerland
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Mark I, Dym H, Fan Y. Immediate Restoration of an Endosseous Implant. Dent Clin North Am 2024; 68:203-212. [PMID: 37951633 DOI: 10.1016/j.cden.2023.08.002] [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: 11/14/2023]
Abstract
As the field of implant dentistry continues to evolve, new techniques and technologies arise that can provide great benefits to the partial or completely edentulous patient. The purpose of this article is to review the history, definition, and rationale of immediate loading of dental implants with the goal of providing evidence-based recommendations for implementation into clinical practice. Relevant literature is summarized and includes discussion regarding prerequisites for immediate loading/restoration of an endosseous implant. Surgical techniques and methodologies to prevent implant failure in immediate-load cases are discussed as well. The greatest success has been demonstrated with 4 or more mandibular implants. Although there is support in the literature demonstrating successful outcomes in immediate functional loading of single implants, the opinion of the author is to opt for a nonfunctional load that does not have any occlusal contacts when considering immediate loading of a single dental implant.
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Affiliation(s)
- Ian Mark
- Department of Oral and Maxillofacial Surgery, The Brooklyn Hospital Center, 121 Dekalb Avenue, Brooklyn, NY 11201, USA.
| | - Harry Dym
- Department of Dentistry and Oral and Maxillofacial Surgery, The Brooklyn Hospital Center, 121 Dekalb Avenue, Brooklyn, NY 11201, USA
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Mugri MH, Sayed ME, Bhandi S, A Alaqi HA, B Alsubeaie NH, Alsubaie SH, Varadarajan S, Raj AT, Yadalam PK, Khurshid Z, Balaji TM, Patil S. Success rate of immediately loaded implants in the posterior zone. Niger J Clin Pract 2023; 26:1215-1225. [PMID: 37794532 DOI: 10.4103/njcp.njcp_884_22] [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: 10/06/2023]
Abstract
Dental implants are considered an ideal treatment for a missing single tooth. Immediate loading of implants can hasten the procedure, providing comfort to the patients. Recently, immediate loading of implants has gained much importance as it helps hasten the procedure and provides more comfort to patients. A previous systematic review published 5 years ago compared the success rates between immediate and conventional loading. There are several factors that influence the success rate of implants that were not discussed in detail in the previous review. Hence, the present systematic review is done to report differences in the outcomes from single implant restorations of missing teeth in the posterior region in patients who were subjected to immediate loading and conventional loading. A follow up for 1 year was done. Electronic databases of Medline, Scopus, and Web of Science were searched for publications in the English Language during May 2021. The search results yielded 306 articles, out of which 225 were excluded based on title and abstract screening. Screening of the remaining 81 full text articles yielded 14 original research articles that satisfied the predefined inclusion criteria. Meta analysis was not possible due to the heterogeneity of the data. The overall success rate of the immediate loading of a single implant is 94.31%. Implants in the maxillary region had a higher survival rate than those in the mandibular region. The age range between 18 and 80 years showed good prognosis and outcomes in older individuals. Good oral hygiene was emphasized for all patients to prevent any secondary conditions or delays in healing.
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Affiliation(s)
- M H Mugri
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - M E Sayed
- Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - S Bhandi
- College of Dental Medicine, Roseman University of Health Science, South Jordan, UTAH-84095, USA
| | - H A A Alaqi
- Private Practice, Jazan, Kingdom of Saudi Arabia
| | | | - S H Alsubaie
- Private Practice, Riyadh, Kingdom of Saudi Arabia
| | - S Varadarajan
- Department of Oral Pathology and Microbiology, Sri Venkateswara Dental College and Hospital, Chennai, Tamil Nadu, India
| | - A T Raj
- Department of Oral Pathology and Microbiology, Sri Venkateswara Dental College and Hospital, Chennai, Tamil Nadu, India
| | - P K Yadalam
- Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Z Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa, Saudi Arabia
| | - T M Balaji
- Department of Periodontology, Tagore Dental College and Hospital, Chennai, India
| | - S Patil
- College of Dental Medicine, Roseman University of Health Science, South Jordan, UTAH-84095, USA
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Pigozzo MN, Cunha N, Amorim K, Laganá DC. Cumulative success rate and marginal bone loss for immediate and early loading protocols in a single implant-supported crown: A randomized controlled split-mouth clinical trial. J Prosthet Dent 2023:S0022-3913(23)00465-1. [PMID: 37635006 DOI: 10.1016/j.prosdent.2023.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 08/29/2023]
Abstract
STATEMENT OF PROBLEM New loading protocols with reduced treatment time have gained popularity because of their advantages. However, whether the success rate with immediate loading (IL) is worse than with early loading (EL) is still unclear. PURPOSE The purpose of this randomized controlled trial with a split-mouth design was to evaluate the marginal bone loss and the cumulative success rate (CSR) 1 year after an IL protocol in single implant-supported crowns. The test groups were loaded after less than 24 hours (test group) and EL at 60 days (control group). MATERIAL AND METHODS Seventeen participants received 34 implants. The recall appointments were at baseline, 30 days, 60 days, and 1 year. The outcome measures evaluated were pain, implant clinical mobility, probing depth measurements, peri-implant disease, marginal bone loss, implant insertion torque, implant stability quotient (ISQ) value, and the CSR. A 2-way repeated measures ANOVA identified the significant differences for probing depth and ISQ. A 3-way repeated measures ANOVA followed by a pairwise t test analyzed marginal bone loss, and a nonparametric Wilcoxon test analyzed insertion torque (α=.05). RESULTS No differences were found between the insertion torque, ISQ, and marginal bone loss values (P>.05). When analyzing probing depth, no differences were found when comparing IL versus EL at baseline, 30 days, and 1 year (P>.05). The global CSR was 91.17%, 88.23% for the IL group and 94.11% for the EL group. CONCLUSIONS When analyzing marginal bone loss, the groups were similar. The global CSR was 91.17%, 88.23% for the IL group, and 94.11% for the EL group.
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Affiliation(s)
- Mônica Nogueira Pigozzo
- Postdoctoral student, Department of Prosthodontics, School of Dentistry, University of São Paulo (USP), São Paulo, Brazil.
| | - Nathalia Cunha
- Postgraduate student, Department of Prosthodontics, School of Dentistry, University of São Paulo (USP), São Paulo, Brazil
| | - Karina Amorim
- Postgraduate student, Department of Prosthodontics, School of Dentistry, University of São Paulo (USP), São Paulo, Brazil
| | - Dalva Cruz Laganá
- Professor, Department of Prosthodontics, School of Dentistry, University of São Paulo (USP), São Paulo, Brazil
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Keshari R, Chand P, Singh BP, Jurel SK, Singh R, Singh PK. Comparison of Crestal Bone Loss and Osteocalcin Release Kinetics in Immediately and Delayed Loaded Implants: A Randomised Controlled Trial. J Prosthodont 2022; 31:579-584. [PMID: 35150170 DOI: 10.1111/jopr.13495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 02/08/2022] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To compare concentration and release kinetics of osteocalcin and crestal bone loss under immediate and delayed loading conditions during osseointegration. MATERIALS AND METHODS Forty-one patients who were indicated for rehabilitation with dental implants randomly received either implant with placement of permanent prosthesis after 3 months (delayed loading) or implant with placement of permanent prosthesis within 7 days (immediate loading). Radiographic assessment of crestal bone loss at the mesial and distal surface was done at 3, 6 and 12 months after implant placement. Peri-implant sulcular fluid was collected immediately from the buccal surface at two sites after implant insertion and also, at 7, 15, 30 and 90 days after surgery. The level of osteocalcin was evaluated using ELISA and data were compared using two sample t-test. Differences between two groups were analyzed by unpaired Student's t test. Intragroup comparison was done by repeated measures ANOVA. RESULTS Mean crestal bone loss was lower in the immediate loading group compared to the delayed loading group at 3, 6 and 12 months (P < 0.001). Intragroup comparison revealed a statistically significant increase in osteocalcin levels in both group I (F = 26712.2) and group II (F = 10497.2) at the predetermined time intervals CONCLUSIONS: Lesser crestal bone loss and early release of osteocalcin was found in the immediately loaded condition than in the delayed loaded condition. The study substantiates that immediately loaded implants shows less crestal bone as well as early release of osteocalcin facilitating upregulation of bone metabolism, improving long term health of bone and prognosis of implants. Immediately loaded implants can be a better treatment protocol provided there is adequate bone and primary stability. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Rishabh Keshari
- Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, India
| | - Pooran Chand
- Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, India
| | - Balendra P Singh
- Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, India
| | - Sunit K Jurel
- Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, India
| | - Ranjana Singh
- Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, India
| | - Punit Kumar Singh
- Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, India
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Lucena Alves CP, Vetromilla BM, Moreno LB, Helal L, Sarkis‐Onofre R, Pereira‐Cenci T. Systematic reviews on the success of dental implants present low spin of information but may be better reported and interpreted: An overview of systematic reviews with meta‐analysis. Clin Implant Dent Relat Res 2022; 24:105-115. [DOI: 10.1111/cid.13067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/22/2021] [Accepted: 12/31/2021] [Indexed: 01/05/2023]
Affiliation(s)
| | | | - Laura Barreto Moreno
- Graduate Program in Dentistry Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Lucas Helal
- Centre for Journalology, Clinical Epidemiology Program Ottawa Hospital Research Institute, The Ottawa Hospital Ottawa Ottawa Canada
| | - Rafael Sarkis‐Onofre
- Graduate Program in Dentistry Meridional Faculty/IMED Passo Fundo Rio Grande do Sul Brazil
| | - Tatiana Pereira‐Cenci
- Graduate Program in Dentistry Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
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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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Francisco H, Finelle G, Bornert F, Sandgren R, Herber V, Warfving N, Pippenger BE. Peri-implant bone preservation of a novel, self-cutting, and fully tapered implant in the healed crestal ridge of minipigs: submerged vs. transgingival healing. Clin Oral Investig 2021; 25:6821-6832. [PMID: 33950374 PMCID: PMC8602133 DOI: 10.1007/s00784-021-03970-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 04/26/2021] [Indexed: 12/03/2022]
Abstract
OBJECTIVES The aim of this study was to assess the influence of transgingival compared with submerged healing on peri-implant bone maintenance around a novel, fully tapered implant in a healed crestal ridge in minipigs. MATERIALS AND METHODS In each of 12 minipigs, two implants (Straumann® BLX, Roxolid® SLActive®, Ø 3.75 × 8 mm) were placed. Implants were either left for submerged or for transgingival healing for 12 weeks. Measurements performed were bone-to-implant contact (BIC), first bone-to-implant contact (fBIC), bone area to total area (BATA), perpendicular bone crest to implant shoulder (pCIS), bone height change from placement, and bone overgrowth (for submerged implants). RESULTS No significant differences were found between transgingival and submerged healing in any of the measured parameters, except for BATA on the buccal aspect in which significantly more bone formation was found for the transgingival healing group. For both groups, there was a gain in crestal bone height during the 12-week healing period. CONCLUSIONS Loaded compared with unloaded implants displayed comparable levels of osseointegration and equivalent marginal bone levels. This qualifies the implant placement protocol with respect to the osteotomy dimensions and subcrestal placement protocol for immediate loading. CLINICAL RELEVANCE The here presented results related to osseointegration and crestal bone maintenance after submerged or transgingival healing have demonstrated a high level of consistency in the used in vivo translational model. The obtained results support the translation of the novel implant type in conjunction with the developed surgical workflow and placement protocol into further clinical investigation and use.
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Affiliation(s)
- Helena Francisco
- Faculdade de Medicina Dentária, Universidade da Lisboa (University of Lisbon), Lisbon, Portugal
| | | | - Fabien Bornert
- Department of Oral Surgery, University of Strasbourg, Strasbourg, France
| | | | - Valentin Herber
- Department of Dentistry and Oral Health, Division of Oral Surgery and Orthodontics, Medical University of Graz, Graz, Austria
| | | | - Benjamin E Pippenger
- Department of Preclinical & Translational Research, Institut Straumann AG, Basel, Switzerland.
- Department of Periodontology, Center for Dental Medicine, University of Bern, Bern, Switzerland.
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Nagay BE, Dini C, Borges GA, Mesquita MF, Cavalcanti YW, Magno MB, Maia LC, Barão VAR. Clinical efficacy of anodized dental implants for implant-supported prostheses after different loading protocols: A systematic review and meta-analysis. Clin Oral Implants Res 2021; 32:1021-1040. [PMID: 34352130 DOI: 10.1111/clr.13813] [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: 01/05/2021] [Revised: 06/10/2021] [Accepted: 07/06/2021] [Indexed: 01/05/2023]
Abstract
OBJECTIVES To summarize the clinical performance of anodized implants connected to different prostheses design after immediate/early (IL) or conventional loading (CL) protocols. MATERIALS AND METHODS Seven databases were surveyed for randomized (RCTs) and non-randomized controlled clinical trials (CCTs). Studies comparing IL vs. CL protocol of anodized implants supporting single crown, fixed partial denture (FPD), full-arch fixed dental prosthesis (FDP), or overdenture were included. Risk-of-bias was evaluated using Cochrane Collaboration tools. Meta-analyses for different follow-up were analyzed, followed by heterogeneity source assessment and GRADE approach. The outcomes included implant survival rate, marginal bone loss (MBL), implant stability quotient (ISQ), probing depth (PD), plaque index (PI), and peri-implantitis prevalence. RESULTS From 24 eligible studies, 22 were included for quantitative evaluation. Most RCTs (58%, n = 11) and all the 5 CCTs had high and serious risk-of-bias, respectively. Overall, pooling all prosthesis design, no difference between IL vs. CL protocols was observed for all outcomes (p > .05). However, according to prosthesis type subgroups, CL reduced MBL for full-arch FDP (p < .05). In a point-in-time assessment, with overdenture, although IL presented higher PI (12 months), it showed lower MBL (≥24 months), higher ISQ (3 months), and lower PD (6 and 12 months) (p < .05). Conversely, PD was higher for IL in single crown (3 and 6 months) (p < .05). Regarding MBL, IL demonstrated higher mean difference for full-arch FDP (36 months) and FPD (12 and 36 months) (p < .05). CONCLUSION Within the limitations of this study, overall, there is no significant difference in the outcomes between IL and CL loading protocols.
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Affiliation(s)
- Bruna Egumi Nagay
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Caroline Dini
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Guilherme Almeida Borges
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Marcelo Ferraz Mesquita
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Yuri Wanderley Cavalcanti
- Department of Clinic and Social Dentistry, Federal University of Paraiba (UFPB), João Pessoa, Brazil
| | - Marcela Baraúna Magno
- Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Lucianne Cople Maia
- Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Valentim Adelino Ricardo Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
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12
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Koga S, Sato I, Li Z, Miyaso H, Kawata S, Itoh M. Analysis of the mylohyoid nerve in elderly Japanese cadavers for dental implant surgery. Clin Exp Dent Res 2021; 7:20-32. [PMID: 33230980 PMCID: PMC7853905 DOI: 10.1002/cre2.341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/22/2020] [Accepted: 09/27/2020] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Injury to the mandibular nerve (MN) branches may cause pain and irregular occlusal movement during mastication after mandibular dental treatments. Growing evidence indicates that the calcitonin gene-related peptide (CGRP) plays a key role in the development of peripheral sensitization and the associated enhanced pain, suggesting it may be a sign to ensure a safe and reliable dental implant treatment. Our focus was on the distribution of the MN branches and their communication with the lingual nerve (LN), the localized expression of CGRP, and the identification of a pain area related to the mylohyoid muscle (MM) fascia in the mandibular floor. MATERIAL AND METHODS In this study, MM samples from 440 sides of 303 human cadavers aged 61-103 years were examined microscopically and immunohistochemically. These data were further evaluated by the use of principal component analysis. RESULTS A complex but weak attachment site was identified for the fascia of the MM. CGRP expression was mainly located in small vessels and was scattered throughout the whole fascia of the MM. Communication between the MN and LN was found in 62.5% (275/440) of the samples. The results from the principal component analysis showed that the positive contributions were from the descending branch in the premolar region (correlation coefficient value R = 0.665), the ascending branch in the molar region (R = 0.709) and the intermediate branch of the digastric branch (R = 0.720) in component 1. In the fascia off the MM, strongly labeled CGRP-positive cells were also found around the blood vessels and the nerve. CONCLUSIONS The findings reported in this study indicate that there is a risk of damage when pulling the fascia off the MM at the border of the molar and premolar regions during dental implant surgery.
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Affiliation(s)
- Shintaro Koga
- Department of AnatomyTokyo Medical UniversityTokyoJapan
| | - Iwao Sato
- Department of AnatomyTokyo Medical UniversityTokyoJapan
| | - Zhong‐Lian Li
- Department of AnatomyTokyo Medical UniversityTokyoJapan
| | | | | | - Masahiro Itoh
- Department of AnatomyTokyo Medical UniversityTokyoJapan
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13
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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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Baskaradoss JK, Geevarghese A, Baig MR. Peri-implant mucosal response to implant-supported overdentures: A systematic review and meta-analysis. Gerodontology 2020; 38:27-40. [PMID: 33164257 DOI: 10.1111/ger.12505] [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] [Received: 02/19/2020] [Revised: 09/20/2020] [Accepted: 10/17/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To systematically review and evaluate the effects of different types of attachments, implant numbers and loading protocols on the peri-implant mucosa of implant-supported overdentures (ISODs). BACKGROUND The impact of peri-implant tissue health on the ISOD treatment outcome is unclear, and current evidence is inadequate on this aspect. MATERIALS AND METHODS A systematic literature search for randomised controlled trials or prospective studies was conducted in indexed databases from 1995 to April 2020. The focused question was as follows: How does the peri-implant mucosa respond to implant-supported or implant-tissue-supported complete overdentures based on different types of attachments, implant numbers, and loading protocols, in terms of clinical outcomes achieved [plaque index (PI), gingival index (GI), probing pocket depth (PD) and bleeding index (BI)]? A random- or fixed-effects model was applied to measure the significance of standardised mean differences (SMD) of PD between the groups. RESULTS Seventeen studies met the eligibility criteria. The SMD for PD between splinted/bar and unsplinted/stud attachments was 0.10 mm (95% CI: -0.27 to 0.47; P = .60) and between 2- and 4-implant groups was 0.15 mm (95% CI: -0.16 to 0.45; P = .34), which were not statistically significant. Significant difference (P = .003) was observed between immediate/early loading and delayed loading (SMD = 0.46 mm [95% CI: 0.16 to 0.75]). CONCLUSIONS Probing depth for the immediate loaded implants was significantly higher than for the delayed loading group. No attachment type, implant number or loading protocol seemed to have a clear advantage over the other, in terms of other peri-implant mucosal outcome measures.
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Affiliation(s)
- Jagan Kumar Baskaradoss
- Division of Dental Public Health, Department of Developmental and Preventive Sciences, Faculty of Dentistry, Kuwait University, Safat, Kuwait
| | - Amrita Geevarghese
- Dental Public Health, Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California San Francisco, CA, USA
| | - Mirza Rustum Baig
- Division of Prosthodontics, Department of Restorative Sciences, Faculty of Dentistry, Kuwait University, Safat, Kuwait
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Sommer M, Zimmermann J, Grize L, Stübinger S. Marginal bone loss one year after implantation: a systematic review of different loading protocols. Int J Oral Maxillofac Surg 2020; 49:121-134. [DOI: 10.1016/j.ijom.2019.03.965] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 03/08/2019] [Accepted: 03/18/2019] [Indexed: 12/24/2022]
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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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Ruales‐Carrera E, Pauletto P, Apaza‐Bedoya K, Volpato CAM, Özcan M, Benfatti CAM. Peri‐implant tissue management after immediate implant placement using a customized healing abutment. J ESTHET RESTOR DENT 2019; 31:533-541. [DOI: 10.1111/jerd.12512] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/21/2019] [Accepted: 06/14/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Edwin Ruales‐Carrera
- Department of Dentistry Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC) Florianópolis Brazil
| | - Patrícia Pauletto
- Department of Dentistry Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC) Florianópolis Brazil
- Department of Dentistry Brazilian Centre for Evidence‐Based Research, Federal University of Santa Catarina (UFSC) Florianópolis Santa Catarina Brazil
| | - Karin Apaza‐Bedoya
- Department of Dentistry Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC) Florianópolis Brazil
| | - Claudia A. M. Volpato
- Department of Dentistry Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC) Florianópolis Brazil
| | - Mutlu Özcan
- Department of Dentistry Brazilian Centre for Evidence‐Based Research, Federal University of Santa Catarina (UFSC) Florianópolis Santa Catarina Brazil
- Dental Materials Unit Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, University of Zurich Zurich Switzerland
| | - César A. M. Benfatti
- Department of Dentistry Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC) Florianópolis Brazil
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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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Comparative Study Between an Immediate Loading Protocol Using the Digital Workflow and a Conventional Protocol for Dental Implant Treatment: A Randomized Clinical Trial. J Clin Med 2019; 8:jcm8050622. [PMID: 31067835 PMCID: PMC6572205 DOI: 10.3390/jcm8050622] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 11/16/2022] Open
Abstract
Background: The purposes of this randomized clinical trial study was to compare the immediate loading of dental implants while employing digital workflow and conventional implants in terms of the success rate, marginal bone level, and patient satisfaction. Methods: Fifty patients who had edentulous area on the mandibular premolar or molar area were included in the study. Twenty-five patients were assigned to immediate loading implant treatment using the digital technique and 25 patients were assigned to conventional loading implant treatment. In the first group, the patients were received digital impression (Cerec Omnicam, Dentsply Sirona®, York, PA, USA), designed, producing zirconia crown, and inserted on the same surgery day. The second group, after a healing period of three months, was received analog impression following conventional impression for the zirconia crown. Clinical outcome and radiographic bone level were evaluated after three, six, and 12 months. Patient satisfaction was measured at 12 months after inserting the implant. Results: There was no implants and protheses failure in both groups. The mean resonance frequency analysis values at the day of surgery were 78.26 ± 4.09 in immediate loading using the digital group (ILD) and 73.74 ± 5.14 in the conventional loading group (CL), respectively. Insertion torque values at the day of surgery were 36.60 ± 12.64 in ILD and 38.8 ± 12.19 CL, respectively. The marginal bone level in CL at three, six, and 12 months were 0.14 ± 0.28 mm, 0.18 ± 0.30 mm, and 0.17 ± 0.29 mm, respectively, while in ILD at three, six, and 12 months were 0.18 ± 0.33 mm and 0.16 ± 0.27 mm and 0.15 ± 0.31, respectively. There was no statistically significant difference between the two groups. Only one question in patient satisfaction's questionnaire was "Now, can your dental implant and crown be used well?" had been significantly different in favor to the conventional group. Conclusion: Within the limitation of this study, it may be concluded that, after one-year follow up, there were no statistically significant differences between the immediate loading of dental implants employed from the digital workflow and conventional implant treatment technique in the success rate and marginal bone level. In patient satisfaction, there was only statistic significant difference in question related to implant prosthetic function in favor of the CL group, whereas the question concerning speaking, cleansing, price, and expectation displayed no difference.
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Maló P, Araújo Nobre M, Lopes A, Ferro A, Nunes M. The All‐on‐4 concept for full‐arch rehabilitation of the edentulous maxillae: A longitudinal study with 5‐13 years of follow‐up. Clin Implant Dent Relat Res 2019; 21:538-549. [DOI: 10.1111/cid.12771] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/13/2019] [Accepted: 03/15/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Paulo Maló
- Oral Surgery DepartmentMaló Clinic Lisbon Portugal
| | | | | | - Ana Ferro
- Oral Surgery DepartmentMaló Clinic Lisbon Portugal
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Pigozzo MN, Rebelo da Costa T, Sesma N, Laganá DC. Immediate versus early loading of single dental implants: A systematic review and meta-analysis. J Prosthet Dent 2018; 120:25-34. [DOI: 10.1016/j.prosdent.2017.12.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 12/20/2017] [Accepted: 12/20/2017] [Indexed: 01/27/2023]
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Raes F, Eccellente T, Lenzi C, Ortolani M, Luongo G, Mangano C, Mangano F. Immediate functional loading of single implants: a multicenter study with 4 years of follow-up. J Dent Res Dent Clin Dent Prospects 2018; 12:26-37. [PMID: 29732018 PMCID: PMC5928471 DOI: 10.15171/joddd.2018.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 03/11/2018] [Indexed: 11/19/2022] Open
Abstract
Background. In the current scientific literature there are only few studies on the immediate functional loading of single implants. The aim of the present present study was to evaluate the 4-year survival rate, complication rate and peri-implant marginal bone loss (PIMBL) of immediately loaded single implants inserted in healed ridges and fresh post-extraction sites.
Methods. Six centers were involved in this prospective study. The surgical and prosthetic protocol was defined in detail, before the start of recruiting patients. Recruitment of patients and performance of surgeries took place between February 2012 and February 2013. Criteria for inclusion were single-tooth gaps in healed ridges and fresh post-extraction sockets. All the fixtures (Anyridge®, Megagen Corporation, Gyeongbuk, South Korea) were functionally loaded immediately after insertion and followed for a period of 4 years. Outcome measures were implant survival, complications and PIMBL.
Results. Forty-six patients (18‒73 years of age) were selected. In total, 57 fixtures were placed (10 in fresh post-extraction sockets). After 4 years of functional loading, only one fixture was lost; therefore, high survival rates (97.6% patient-based; 98.1% implant-based) were reported. In addition, a limited incidence of biologic (4.8% patient-based; 3.8% implant-based) and prosthetic (9.7% patient-based; 7.6% implant-based) complications was reported. The overall 4-year PIMBL amounted to 0.38±0.21 mm (healed ridges: 0.4±0.21 mm; fresh post-extraction sockets: 0.33±0.20 mm).
Conclusion. Loading single implants immediately seems to be a highly successful treatment modality. However, long-term data are needed to confirm these positive outcomes.
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Affiliation(s)
- Filiep Raes
- Professor, Department of Periodontology and Oral Implantology, University of Ghent, Belgium
| | | | | | | | - Giuseppe Luongo
- Professor, Department of Oral and Maxillofacial Surgery, Dental School, University of Naples, Italy
| | - Carlo Mangano
- Professor, Department of Dental Sciences, University Vita Salute San Raffaele, Milan, Italy
| | - Francesco Mangano
- Lecturer, Department of Surgical and Morphological Science, Dental School, University of Varese, Italy
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Wright SP, Hayden J, Lynd JA, Walker-Finch K, Willett J, Ucer C, Speechley SD. Factors affecting the complexity of dental implant restoration - what is the current evidence and guidance? Br Dent J 2018; 221:615-622. [PMID: 27857100 DOI: 10.1038/sj.bdj.2016.855] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2016] [Indexed: 11/09/2022]
Abstract
Objectives The aim of this paper is to identify the factors that affect the complexity of implant restoration and to explore the indices that help us to assess it. With this knowledge the growing number of clinicians restoring dental implants will have a better understanding of the available guidance and evidence base, and the differing levels of competence required.Study design A literature review was conducted. The selection of publications reporting on complexity was based on predetermined criteria and was agreed upon by the authors. After title and abstract screening 17 articles were reviewed. The articles that were utilised to form the ITI SAC tool and Cologne Risk Assessment we also included.Assessing complexity Two key guides are available: International Team for Implantology's Straight-forward Advanced Complex tool and the Cologne ABC risk score. While these guides help identify treatment complexity they do not provide a strong enough evidence base from which to solely base clinical decisions. The key patient factors are expectation, communication, the oral environment, aesthetic outcome, occlusion, soft tissue profile and the intra-arch distance, whereas the key technical factors are impression taking, type of retention, loading protocol and the need for provisional restorations. Human factors also have a significant effect on complexity, specifically, the experience and training of the clinician, team communication and the work environment.Conclusions There are many interconnecting factors that affect the complexity of dental implant restoration. Furthermore the two widely used indices for the assessment of complexity have been investigated, and although these offer a good guideline as to the level of complexity, there is a lack evidence to support their use. The development of evidence-based treatment and protocols is necessary to develop the current indices further, and these need to be expanded to include other critical areas, such as human factors. A practical guide to aid practitioners in reducing complexity has been proposed.
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Affiliation(s)
- S P Wright
- Edge Hill University, Faculty of Health and Social Care, St Helens Rd, Ormskirk, L39 4QP
| | - J Hayden
- Edge Hill University, Faculty of Health and Social Care, St Helens Rd, Ormskirk, L39 4QP
| | - J A Lynd
- Edge Hill University, Faculty of Health and Social Care, St Helens Rd, Ormskirk, L39 4QP
| | - K Walker-Finch
- Edge Hill University, Faculty of Health and Social Care, St Helens Rd, Ormskirk, L39 4QP
| | - J Willett
- Edge Hill University, Faculty of Health and Social Care, St Helens Rd, Ormskirk, L39 4QP
| | - C Ucer
- Edge Hill University, Faculty of Health and Social Care, St Helens Rd, Ormskirk, L39 4QP
| | - S D Speechley
- Edge Hill University, Faculty of Health and Social Care, St Helens Rd, Ormskirk, L39 4QP
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Risk factors for post-operative complications after procedures for autologous bone augmentation from different donor sites. J Craniomaxillofac Surg 2018; 46:312-322. [DOI: 10.1016/j.jcms.2017.11.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/09/2017] [Accepted: 11/14/2017] [Indexed: 11/20/2022] Open
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Mangano F, Raspanti M, Maghaireh H, Mangano C. Scanning Electron Microscope (SEM) Evaluation of the Interface between a Nanostructured Calcium-Incorporated Dental Implant Surface and the Human Bone. MATERIALS 2017; 10:ma10121438. [PMID: 29258208 PMCID: PMC5744373 DOI: 10.3390/ma10121438] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/13/2017] [Accepted: 12/14/2017] [Indexed: 12/26/2022]
Abstract
Purpose. The aim of this scanning electron microscope (SEM) study was to investigate the interface between the bone and a novel nanostructured calcium-incorporated dental implant surface in humans. Methods. A dental implant (Anyridge®, Megagen Implant Co., Gyeongbuk, South Korea) with a nanostructured calcium-incorporated surface (Xpeed®, Megagen Implant Co., Gyeongbuk, South Korea), which had been placed a month earlier in a fully healed site of the posterior maxilla (#14) of a 48-year-old female patient, and which had been subjected to immediate functional loading, was removed after a traumatic injury. Despite the violent trauma that caused mobilization of the fixture, its surface appeared to be covered by a firmly attached, intact tissue; therefore, it was subjected to SEM examination. The implant surface of an unused nanostructured calcium-incorporated implant was also observed under SEM, as control. Results. The surface of the unused implant showed a highly-structured texture, carved by irregular, multi-scale hollows reminiscent of a fractal structure. It appeared perfectly clean and devoid of any contamination. The human specimen showed trabecular bone firmly anchored to the implant surface, bridging the screw threads and filling the spaces among them. Conclusions. Within the limits of this human histological report, the sample analyzed showed that the nanostructured calcium-incorporated surface was covered by new bone, one month after placement in the posterior maxilla, under an immediate functional loading protocol.
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Affiliation(s)
- Francesco Mangano
- Department of Medicine and Surgery, University of Insubria, Varese 21100, Italy.
| | - Mario Raspanti
- Department of Medicine and Surgery, University of Insubria, Varese 21100, Italy.
| | | | - Carlo Mangano
- Department of Dental Sciences, University Vita Salute S. Raffaele, Milan 20132, Italy.
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Lambert F, Mainjot A. One-Tooth One-Time (1T1T): A Straightforward Approach to Replace Missing Teeth in the Posterior Region. J ORAL IMPLANTOL 2017; 43:371-377. [DOI: 10.1563/aaid-joi-d-17-00136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- France Lambert
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
- Department of Periodontology and Oral Surgery, University Hospital Center (CHU) of Liège, Belgium
| | - Amélie Mainjot
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
- Department of Fixed Prosthodontics, University Hospital Center (CHU) of Liège, Belgium
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Annual review of selected scientific literature: Report of the committee on scientific investigation of the American Academy of Restorative Dentistry. J Prosthet Dent 2017; 118:281-346. [DOI: 10.1016/j.prosdent.2017.04.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/27/2017] [Accepted: 04/27/2017] [Indexed: 01/19/2023]
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Histological Evidence of the Osseointegration of Fractured Direct Metal Laser Sintering Implants Retrieved after 5 Years of Function. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9732136. [PMID: 28929117 PMCID: PMC5592009 DOI: 10.1155/2017/9732136] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 07/30/2017] [Indexed: 11/17/2022]
Abstract
Background Direct metal laser sintering (DMLS) is an additive manufacturing technique that allows the fabrication of dental implants layer by layer through the laser fusion of titanium microparticles. The surface of DMLS implants is characterized by a high open porosity with interconnected pores of different sizes; therefore, it has the potential to enhance and accelerate bone healing. To date, however, there are no histologic/histomorphometric studies in the literature evaluating the interface between bone and DMLS implants in the long-term. Purpose To evaluate the interface between bone and DMLS implants retrieved after 5 years of functional loading. Methods Two fractured DMLS implants were retrieved from the human jaws, using a 5 mm trephine bur. Both the implants were clinically stable and functioned regularly before fracture. The specimens were processed for histologic/histomorphometric evaluation; the bone-to-implant contact (BIC%) was calculated. Results Compact, mature lamellar bone was found over most of the DMLS implants in close contact with the implant surface; the histomorphometric evaluation showed a mean BIC% of 66.1% (±4.5%). Conclusions The present histologic/histomorphometric study showed that DMLS implants were well integrated in bone, after 5 years of loading, with the peri-implant bone undergoing continuous remodeling at the interface.
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Hopp M, de Araújo Nobre M, Maló P. Comparison of marginal bone loss and implant success between axial and tilted implants in maxillary All-on-4 treatment concept rehabilitations after 5 years of follow-up. Clin Implant Dent Relat Res 2017; 19:849-859. [DOI: 10.1111/cid.12526] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/17/2017] [Accepted: 07/18/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Milena Hopp
- Dr. Bernd Quantius & Milena Hopp; Private Practice of Implantology and Periodontology; Giesenkirchener Str. 40, Mönchengladbach 41238 Germany
| | | | - Paulo Maló
- Oral Surgery Department; Maló Clinic; Lisbon Portugal
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Morton D, Pollini A. Evolution of loading protocols in implant dentistry for partially dentate arches. Periodontol 2000 2016; 73:152-177. [DOI: 10.1111/prd.12171] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Aggarwal R, Babaji P, Nathan SS, Attokaran G, Santosh Kumar SM, Sathnoorkar S. Comparative clinicoradiographical evaluation of effect of aminobisphosphonate (sodium alendronate) on peri-implant bone status: Controlled clinical trial. J Int Soc Prev Community Dent 2016; 6:285-90. [PMID: 27583214 PMCID: PMC4981928 DOI: 10.4103/2231-0762.184039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Aim: The present study aims to compare the peri-implant bone status around immediately loaded dental implants treated with aminobisphosphonate solution and untreated control implants in terms of clinical and radiographical parameters. Materials and Methods: A total of 24 patients were randomly divided equally into two groups. This study was conducted in accordance to the Helsinki's declaration of 1975, revised in 2000, and with the approval of the institutional ethical committee. In the control group after preparation, osteotomy sites were irrigated with normal saline solution, whereas in the test group osteotomy sites were irrigated with modified bisphosphonate solution and then TRX-OP, Hi-Tec dental implants were inserted. Clinical parameters, such as modified plaque and gingival index, probing depth, mobility, and radiographic parameters were recorded at baseline (0), 3, 6, and 9 months. Data analysis was performed using the Statistical Package for the Social Sciences version 17 for windows, and the statistical techniques employed were repeated measures analysis of variance, independent sample t-test, and paired sample t-test. Results: Reduction in mean radiographic bone levels (height) was observed on the mesial and distal aspect of the control group in comparison to its baseline at all intervals. In the test group, there was reduction in mean radiographic bone levels on mesial and distal aspect of the implant site in comparison to its baseline till 6-month follow up, however, at 9 month, there was gain in bone level on both mesial and distal aspect of implant. This represents the effectiveness of sodium alendronate in enhancing the bone formation. On comparison, between both groups on mesial and distal aspect of implants, statistically significant differences were observed at 3 and 9 months on mesial and distal aspect, respectively, without any clinical evidence of mobility in the test group. Conclusion: Implant site treated with aminobisphosphonate solution represents greater efficacy in enhancing bone formation when used as an irrigant; thus, it is considered beneficial in implant dentistry.
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Affiliation(s)
- Rajni Aggarwal
- Depatrment of Periodontology, Maharaja Ganga Singh Dental College and Research Centre, Sri Ganganagar, Rajasthan, India
| | - Prashant Babaji
- Department of Pedodontics, Sharavthi Dental College, Shimoga, Karnataka, India
| | - S Senthil Nathan
- Department of Peridontology, Sri Venkateshwara Dental College, Pondichery, India
| | - George Attokaran
- Department of Prosthodontics, PSM College of Dental Science and Research, Thrissur, Kerala, India
| | - S M Santosh Kumar
- Department of Oral and Maxillofacial Surgery, AME's Dental College and Hospital, Raichur, Karnataka, India
| | - Sharanpriya Sathnoorkar
- Department of Conservative Dentistry and Endodontuics, HKDET's Dental College and Hospital, Humnabad, Karnataka, India
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Henningsen A, Smeets R, Wahidi A, Kluwe L, Kornmann F, Heiland M, Gerlach T. The feasibility of immediately loading dental implants in edentulous jaws. J Periodontal Implant Sci 2016; 46:234-43. [PMID: 27588213 PMCID: PMC5005811 DOI: 10.5051/jpis.2016.46.4.234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 07/01/2016] [Indexed: 11/18/2022] Open
Abstract
Purpose Immediate loading of dental implants has been proved to be feasible in partially edentulous jaws. The purpose of this retrospective investigation was to assess the feasibility of immediately loading dental implants in fully edentulous jaws. Methods A total of 24 patients aged between 53 and 89 years received a total of 154 implants in their edentulous maxillae or mandibles. Among the implants, 45 were set in fresh extracted sockets and 109 in consolidated alveolar bones. The implants were provisionally managed with chair-side made provisional resin bridges and exposed to immediate loading. Implants were followed up for 1–8 years, including radiographic imaging. Marginal bone levels were evaluated based on radiographic imaging. Results A total of 148 out of the 154 implants survived over the follow-up period of 1 to 8 years, giving a survival rate of 96%. The time or region of the implantation, the pre-implant augmentation, and the length and diameter of the implants had no statistically significant influence on the survival or the success rate. The marginal bone level remained stable with only minimal loss of 0.3 mm after 60 months of loading. Conclusions Within the limitations of this study, immediate loading is feasible for dental implants in edentulous jaws.
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Affiliation(s)
- Anders Henningsen
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.; Department of Oral and Maxillofacial Surgery, German Armed Forces Hospital, Hamburg, Germany
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Aria Wahidi
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lan Kluwe
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Frank Kornmann
- Private Practice for Dentistry and Oral Surgery, Oppenheim, Germany
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Till Gerlach
- Private Practice for Dentistry and Oral Surgery, Oppenheim, Germany
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Valkova V, Ubaidha Maheen C, Pommer B, Rausch-Fan X, Seeman R. Hot Topics in Clinical Oral Implants Research: Recent Trends in Literature Coverage. Dent J (Basel) 2016; 4:dj4020013. [PMID: 29563456 PMCID: PMC5851263 DOI: 10.3390/dj4020013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 05/15/2016] [Accepted: 05/18/2016] [Indexed: 11/23/2022] Open
Abstract
This systematic review looks at thematic trends in clinical research publications on dental implants. For this purpose, MEDLINE electronic searches as well as additional hand searches of six main journals in the field were conducted. A total of 2875 clinical studies published between 2001 and 2012 met the inclusion criteria and were subjected to statistical analysis. Hot topics in dental implant literature included immediate loading (14.3%), bone substitutes (11.6%), cross-arch full bridges (8.0%), and immediate implant placement (7.5%). A significant increase in scientific interest for immediate loading (+6.3%, p = 0.001), platform switching (+2.9%, p = 0.001), guided implant surgery (+1.9%, p = 0.011), growth factors (p = 0.014, +1.4%), piezoelectric surgery (+1.3%, p = 0.015), and restorative materials (+0.7%, p = 0.011) was found. A declining scientific interest in onlay grafting (−0.3%, p = 0.042) was recorded. The findings regarding current clinical oral implants research tie in with better-informed consumers and increased patient demands. Our results demonstrate an increasing interest in techniques that avoid complicated procedures such as bone grafting and that reduce treatment duration.
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Affiliation(s)
- Vesela Valkova
- Medical University of Vienna, Bernhard Gottlieb School of Dentistry, Sensengasse 2a, A-1090 Vienna, Austria.
| | - Ceeneena Ubaidha Maheen
- Medical University of Vienna, Bernhard Gottlieb School of Dentistry, Sensengasse 2a, A-1090 Vienna, Austria.
| | - Bernhard Pommer
- Academy for Oral Implantology, Lazarettgasse 19/DG, A-1090 Vienna, Austria.
| | - Xiaohui Rausch-Fan
- Medical University of Vienna, Rausch-Fan Laboratory, Sensengasse 2a, A-1090 Vienna, Austria.
| | - Rudolf Seeman
- Medical University of Vienna, Department of Oral and Maxillofacial Surgery, Währinger Gürtel 18-20, A-1090 Vienna, Austria.
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Consecutive Case Series of Healed Single-Molar Sites Immediately Restored with Wide-Diameter Implants: A 1-Year Evaluation. Int J Dent 2016; 2016:5645892. [PMID: 27195008 PMCID: PMC4852344 DOI: 10.1155/2016/5645892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 03/03/2016] [Accepted: 03/20/2016] [Indexed: 11/18/2022] Open
Abstract
Introduction. To evaluate outcomes of wide-diameter (6 mm) implants immediately provisionalized with cement-retained single crowns in posterior molar sites. Materials and Methods. Forty-eight consecutive patients received a total of 53 moderately rough-surface, 6 mm diameter implants in healed sites. All implants were immediately provisionalized with a cement-retained provisional crown. Final prosthesis with cement-retained porcelain fused to metal crowns was delivered 3–6 months later. Patients were followed up for 1 year. Outcome measures were implant failures and success rate, complications, marginal bone levels, bone level changes, papilla index, bleeding on probing, and inflammation. Results. One patient was lost to follow-up. At one year, the implant survival and success rate were 98.1%. The mean marginal bone loss after 1 year was −0.17 ± 1.84 mm. Ideal papilla score was recorded at 83.8% of the sites. More than 95.6% of the sites showed no bleeding or inflammation. No procedure-related or device-related adverse events were reported. Conclusion. Wide-diameter (6 mm) implants can safely and successfully replace single posterior molars. Longer follow-up studies are necessary to evaluate the long-term success of these implants.
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