1
|
Sayed O, Abdalla MM, Elsayed A, El-Mahallawy Y, Al-Mahalawy H. Does strontium coated titanium implants enhance the osseointegration in animal models under osteoporotic condition? A systematic review and meta-analysis. BDJ Open 2024; 10:69. [PMID: 39181895 PMCID: PMC11344846 DOI: 10.1038/s41405-024-00220-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 08/27/2024] Open
Abstract
PURPOSE The aim of this study was to systematically review the literature to address the effect of strontium modified titanium implants on the osseointegration in the presence of osteoporotic conditions through animal models. MATERIALS AND METHODS The databases (PubMed, Scopus, Web of Science, and EBSCO) were searched electronically, and manual searches were performed till December 2022 to identify preclinical studies on the osseointegration of strontium coated titanium implants in animals with induced osteoporotic conditions. The primary outcomes were the bone-implant contact percentage (BIC%), bone area (BA) from the histomorphometric analysis, and the osseointegration parameters from biomechanical tests; the secondary outcomes were the osseointegration parameters from the micro computed tomography. RESULTS Nineteen articles were included for the quantitative analysis on basis of the inclusion criteria. The results revealed that Sr-modified implants showed a significant 19.05% increase in BIC, and 15.01% increase in BA. The results of biomechanical tests indicated a significant effect in favor of Sr-coated implants. Furthermore, Results of the secondary outcomes supported the significant advantages of Sr-coated implants over the un-coated implants. The overall, systematic analysis of implants osteointegration parameters proved a significant increase in favor of Sr-coated titanium implants (P < 0.01). CONCLUSION The present results provide evidence that strontium-coated titanium implants enhanced the osseointegration in animal models under osteoporotic condition as this surface modification techniques have improved the mechanical and biological properties of the titanium implants.
Collapse
Affiliation(s)
- Osama Sayed
- Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Fayoum University, Fayoum, Egypt
| | - Mohamed Mahmoud Abdalla
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
- Dental Biomaterials, Faculty of Dental Medicine Al-Azhar University, Cairo, Egypt
| | - Ayman Elsayed
- Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | - Yehia El-Mahallawy
- Assistant Professor, Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
| | - Haytham Al-Mahalawy
- Professor and head of the Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Fayoum University, Fayoum, Egypt
| |
Collapse
|
2
|
Rosa C, Bento V, Duarte N, Sayeg J, Santos T, Pellizzer E. Do dental implants installed in different types of bone (I, II, III, IV) have different success rates? A systematic review and meta-analysis. Saudi Dent J 2024; 36:428-442. [PMID: 38525185 PMCID: PMC10960139 DOI: 10.1016/j.sdentj.2023.12.007] [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: 05/07/2023] [Revised: 11/11/2023] [Accepted: 12/18/2023] [Indexed: 03/26/2024] Open
Abstract
Purpose The objective of this systematic review and meta-analysis was to evaluate the survival rate of implants installed in bone type IV (Lekholm and Zarb, 1995) compared to that of implants installed in bone types I, II, and III. Material and methods This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (PRISMA) and was registered in the PROSPERO International Database of Systematic Reviews (CRD42021229775). The PubMed/MEDLINE, Scopus, and Cochrane databases were searched through July 2021. The PICO question was: "Dental implants installed in type IV bone have a lower success rate when compared to implants installed in type I bone, II and III?". The established inclusion criteria were: 1) controlled and randomized clinical trials (RCT), 2) prospective and retrospective studies with at least 10 participants with dental implants, and 3) patients with dental implants installed in bone tissue types I, II, III, and IV (Lekholm and Zarb, 1985). The minimum followup duration was 1 year. Results After searching the identified databases, 117 articles were selected for full reading and 68 were excluded. Thus, 49 studies were included for qualitative and quantitative analyses. The total number of participants included was 12,056, with a mean age of 41.56 years and 29,905 implants installed. Bone types I, II, and III exhibit a lower implant failure rate when compared to bone type IV. Conclusion Dental implants installed in bone types I, II, and III showed significantly higher survival rates than those installed in type IV. The bone type I success rate was not significantly different than that of type II; however, the success rate of bone type I and II was higher than that of type III.
Collapse
Affiliation(s)
- Cleber Rosa
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Univ Estadual Paulista, Araçatuba, Sao Paulo, Brazil
| | - Victor Bento
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Univ Estadual Paulista, Araçatuba, Sao Paulo, Brazil
| | - Nathália Duarte
- Department of Basic Sciences, Araçatuba Dental School, UNESP - Univ Estadual Paulista, Araçatuba, Sao Paulo, Brazil
| | - Joao Sayeg
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Univ Estadual Paulista, Araçatuba, Sao Paulo, Brazil
| | - Thawan Santos
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Univ Estadual Paulista, Araçatuba, Sao Paulo, Brazil
| | - Eduardo Pellizzer
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, UNESP - Univ Estadual Paulista, Araçatuba, Sao Paulo, Brazil
| |
Collapse
|
3
|
Fröschen FS, Wirtz DC, Schildberg FA. [Physiological reactions in the interface between cementless implants and bone]. ORTHOPADIE (HEIDELBERG, GERMANY) 2023; 52:178-185. [PMID: 36749380 DOI: 10.1007/s00132-023-04347-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/12/2023] [Indexed: 02/08/2023]
Abstract
BACKGROUND Surgical treatment of patients with osteoarthritis of the hip and persisting symptoms under conservative therapy has become increasingly important against the background of an aging population. OBJECTIVES What are the physiological reactions in the interface between cementless implants and bone? METHODS The literature is reviewed, expert opinions and animal models are analyzed and discussed. RESULTS Surface coating of implants with hydroxyapatite or titanium can have positive effects on osteointegration. Additional local application of mediators might be beneficial for osteointegration in the future. CONCLUSION Early peri-implant bone healing directly after implantation and late remodeling of the bone-implant interface are essential for secondary implant stability.
Collapse
Affiliation(s)
- Frank Sebastian Fröschen
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland.
| | - Dieter Christian Wirtz
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
| | - Frank Alexander Schildberg
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Bonn, Venusberg-Campus 1, 53127, Bonn, Deutschland
| |
Collapse
|
4
|
Electrochemical and biological characterization of Ti-Nb-Zr-Si alloy for orthopedic applications. Sci Rep 2023; 13:2312. [PMID: 36759646 PMCID: PMC9911760 DOI: 10.1038/s41598-023-29553-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
The performance of current biomedical titanium alloys is limited by inflammatory and severe inflammatory conditions after implantation. In this study, a novel Ti-Nb-Zr-Si (TNZS) alloy was developed and compared with commercially pure titanium, and Ti-6Al-4V alloy. Electrochemical parameters of specimens were monitored during 1 h and 12 h immersion in phosphate buffered saline (PBS) as a normal, PBS/hydrogen peroxide (H2O2) as an inflammatory, and PBS/H2O2/albumin/lactate as a severe inflammatory media. The results showed an effect of the H2O2 in inflammatory condition and the synergistic behavior of H2O2, albumin, and lactate in severe inflammatory condition towards decreasing the corrosion resistance of titanium biomaterials. Electrochemical tests revealed a superior corrosion resistance of the TNZS in all conditions due to the presence of silicide phases. The developed TNZS was tested for subsequent cell culture investigation to understand its biocompatibility nature. It exhibited favorable cell-materials interactions in vitro compared with Ti-6Al-4V. The results suggest that TNZS alloy might be a competitive biomaterial for orthopedic applications.
Collapse
|
5
|
Shukri NMM, Duraisamy R, Balasubramaniam A, Ganapathy D. Evaluation of Implant and Prosthesis Survival Rates Based on Crestal Bone Loss. J Long Term Eff Med Implants 2023; 33:1-14. [PMID: 36734922 DOI: 10.1615/jlongtermeffmedimplants.2022041096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A dental implant mimics the tooth and restores its function. It has flourished as a replacement of missing natural teeth that has a success rate over 90% over the years. However, this root-form implant has also been associated with some complications after its application. Crestal bone loss, one of the biggest challenges in dental implant placement, occurs around the dental implant neck within a few months post-loading. The aim of this study was to determine survival rates and to measure crestal bone changes after placement of a single crown prosthesis. Data collection was done in a private dental university setting. Data from approximately 296 cases were retrieved after analyzing 86,000 case sheets. The following parameters were evaluated based on dental records: age, sex, implant placement area, implant diameter and length, and presence or absence of exudate. Crestal bone loss was assessed radiographically. Excel tabulation and SPSS version 23 were used for data analysis. Chi-square testing was done to correlate various parameters used in this study. Incipient crestal bone loss was commonly observed. It was seen that the association between crestal bone loss and exudate was statistically significant (Chi-square, p < 0.05). Within the limits of this study, incipient crestal bone loss was observed in most dental implants irrespective of bone density, implant length, implant diameter, and implant placement area.
Collapse
Affiliation(s)
- Nor Masitah Mohamed Shukri
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Revathi Duraisamy
- Department of Prosthodontics and Implantology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, 162, Poonamallee High Road, Velappanchavadi, Chennai - 600077 India
| | - Arthi Balasubramaniam
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Dhanraj Ganapathy
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| |
Collapse
|
6
|
Soldatos N, Nelson-Rabe L, Palanker N, Angelov N, Romanos G, Weltman R. Temperature Changes during Implant Osteotomy Preparations in Fresh Human Cadaver Tibiae, Comparing Straight with Tapered Drills. MATERIALS 2022; 15:ma15072369. [PMID: 35407704 PMCID: PMC8999768 DOI: 10.3390/ma15072369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/26/2022] [Accepted: 03/16/2022] [Indexed: 12/03/2022]
Abstract
The success of osseointegration depends on many factors. With temperatures beyond a 47 °C threshold over 1 min, bone survival may be impaired. The purpose of the study was to evaluate, in fresh human cadaver tibiae, the temperature changes during osteotomy preparations using two straight and two tapered implant systems’ drills, external irrigation, and varying revolutions per minute (RPM). The tibiae from a fresh female cadaver were harvested bilaterally. Two tapered and two straight design drills were assessed. Two-hundred and forty osteotomies were prepared at 6 mm depth following the drill sequence of the manufacturers’ protocol for each drilling speed. Difference in temperature (ΔΤ) was calculated by subtracting the baseline from the maximum temperature (ΔT = Tmax − Tbase). Drill design and drill diameter, as independent variables or synergistically, had a significant effect on ΔΤ. Tapered drills: As the drill diameter increased, ΔΤ increased at all RPM. Straight drills: As the drill diameter increased, ΔΤ remained constant or slightly decreased at all RPM. Drill diameter and design had a significant effect on ΔΤ in human tibiae, which never exceeded the critical threshold of 47 °C. Tapered drills caused significantly greater heat production compared to straight drills.
Collapse
Affiliation(s)
- Nikolaos Soldatos
- Department of Periodontics and Dental Hygiene, School of Dentistry, University of Texas, Health Science Center at Houston, 7500 Cambridge Str, Suite 6400, Houston, TX 77054, USA; (L.N.-R.); (N.P.); (N.A.); (R.W.)
- Correspondence:
| | - Laura Nelson-Rabe
- Department of Periodontics and Dental Hygiene, School of Dentistry, University of Texas, Health Science Center at Houston, 7500 Cambridge Str, Suite 6400, Houston, TX 77054, USA; (L.N.-R.); (N.P.); (N.A.); (R.W.)
| | - Nathan Palanker
- Department of Periodontics and Dental Hygiene, School of Dentistry, University of Texas, Health Science Center at Houston, 7500 Cambridge Str, Suite 6400, Houston, TX 77054, USA; (L.N.-R.); (N.P.); (N.A.); (R.W.)
| | - Nikola Angelov
- Department of Periodontics and Dental Hygiene, School of Dentistry, University of Texas, Health Science Center at Houston, 7500 Cambridge Str, Suite 6400, Houston, TX 77054, USA; (L.N.-R.); (N.P.); (N.A.); (R.W.)
| | - Georgios Romanos
- Department of Periodontology, LASER Education at SDM, School of Dental Medicine (SDM), Stony Brook University, South Dr, Stony Brook, Long Island, NY 11794, USA;
| | - Robin Weltman
- Department of Periodontics and Dental Hygiene, School of Dentistry, University of Texas, Health Science Center at Houston, 7500 Cambridge Str, Suite 6400, Houston, TX 77054, USA; (L.N.-R.); (N.P.); (N.A.); (R.W.)
- Department of Clinical Sciences, School of Dental Medicine, University of Nevada, Las Vegas, NV 89106, USA
| |
Collapse
|
7
|
Augustin J, Feichtner F, Waselau AC, Julmi S, Klose C, Wriggers P, Maier HJ, Meyer-Lindenberg A. Effect of pore size on tissue ingrowth and osteoconductivity in biodegradable Mg alloy scaffolds. J Appl Biomater Funct Mater 2022; 20:22808000221078168. [PMID: 35189733 DOI: 10.1177/22808000221078168] [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] [Indexed: 11/15/2022] Open
Abstract
Magnesium has mechanical properties similar to those of bone and is being considered as a potential bone substitute. In the present study, two different pore sized scaffolds of the Mg alloy LAE442, coated with magnesium fluoride, were compared. The scaffolds had interconnecting pores of either 400 (p400) or 500 µm (p500). ß-TCP served as control. Ten scaffolds per time group (6, 12, 24, 36 weeks) were implanted in the trochanter major of rabbits. Histological analyses, µCT scans, and SEM/EDX were performed. The scaffolds showed slow volume decreases (week 36 p400: 9.9%; p500: 7.5%), which were accompanied by uncritical gas releases. In contrast, ß-TCP showed accelerated resorption (78.5%) and significantly more new bone inside (18.19 ± 1.47 mm3). Bone fragments grew into p400 (0.17 ± 0.19 mm3) and p500 (0.36 ± 0.26 mm3), reaching the centrally located pores within p500 more frequently. In particular, p400 displayed a more uneven and progressively larger surface area (week 36 p400: 253.22 ± 19.44; p500: 219.19 ± 4.76 mm2). A better osseointegration of p500 was indicated by significantly more trabecular contacts and a 200 µm wide bone matrix being in the process of mineralization and in permanent contact with the scaffold. The number of macrophages and foreign body giant cells were at an acceptable level concerning resorbable biomaterials. In terms of ingrown bone and integrative properties, LAE442 scaffolds could not achieve the results of ß-TCP. In this long-term study, p500 appears to be a biocompatible and more osteoconductive pore size for the Mg alloy LAE442.
Collapse
Affiliation(s)
- Julia Augustin
- Clinic for Small Animal Surgery and Reproduction, Ludwig-Maximilians-Universität, Munich, Germany
| | - Franziska Feichtner
- Clinic for Small Animal Surgery and Reproduction, Ludwig-Maximilians-Universität, Munich, Germany
| | - Anja-Christina Waselau
- Clinic for Small Animal Surgery and Reproduction, Ludwig-Maximilians-Universität, Munich, Germany
| | - Stefan Julmi
- Institut für Werkstoffkunde (Materials Science), Leibniz Universität Hannover, Garbsen, Germany
| | - Christian Klose
- Institut für Werkstoffkunde (Materials Science), Leibniz Universität Hannover, Garbsen, Germany
| | - Peter Wriggers
- Institute of Continuum Mechanics, Leibniz Universität Hannover, Garbsen, Germany
| | - Hans Jürgen Maier
- Institut für Werkstoffkunde (Materials Science), Leibniz Universität Hannover, Garbsen, Germany
| | - Andrea Meyer-Lindenberg
- Clinic for Small Animal Surgery and Reproduction, Ludwig-Maximilians-Universität, Munich, Germany
| |
Collapse
|
8
|
Schliephake H. The role of systemic diseases and local conditions as risk factors. Periodontol 2000 2022; 88:36-51. [PMID: 35103330 DOI: 10.1111/prd.12409] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Henning Schliephake
- Department of Oral Maxillofacial Surgery, University Medicine George-Augusta-University, Göttingen, Germany
| |
Collapse
|
9
|
Esimekara JFO, Perez A, Courvoisier DS, Scolozzi P. Dental implants in patients suffering from autoimmune diseases: A systematic critical review. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e464-e473. [PMID: 35033725 DOI: 10.1016/j.jormas.2022.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 01/10/2022] [Indexed: 12/19/2022]
Abstract
PURPOSE This systematic review aimed to evaluate complications and survival rates of dental implants placed in patients suffering from autoimmune diseases. MATERIALS AND METHODS A systematic review was conducted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses systematic review guidelines (PRISMA), using Google scholar and PubMed electronic databases with a stop date of September 2021. The eligibility criteria included all full text human studies in the English language literature reporting on patients with autoimmune diseases treated with dental implants. RESULTS Fifty-five studies reporting on nine distinct autoimmune diseases were analyzed: 17 on Sjögren's syndrome (SS), 11 on oral lichen planus (OLP), 8 on Type 1 diabetes, 6 on rheumatoid arthritis (RA), 4 on systemic scleroderma (SSc), 3 on Crohn's disease (CD), 3 on systemic lupus erythematosus (SLE), 2 on mucous membrane pemphigoid (MMB) and 1 on pemphigus vulgaris (PV). Despite the heterogeneity and methodological limitations of most of the studies, results showed that dental implant survival rates were comparable to those reported in the general population. However, patients with secondary SS or erosive OLP were more susceptible to developing peri-mucositis and increased marginal bone loss. CONCLUSION This review suggested that dental implants may be considered as a safe and viable therapeutic option in the management of edentulous patients suffering from autoimmune diseases. Nevertheless, scrupulous maintenance of oral hygiene and long-term follow-up emerge as being the common determinants for uneventful dental implant treatment.
Collapse
Affiliation(s)
| | - Alexandre Perez
- Division of Oral and Maxillofacial Surgery, Department of Surgery, Unit of Oral Surgery and Implantology, University of Geneva and University Hospitals of Geneva, Geneva, Switzerland
| | - Delphine S Courvoisier
- Division of Oral and Maxillofacial Surgery, Department of Surgery, University of Geneva and University Hospitals of Geneva, Geneva, Switzerland
| | - Paolo Scolozzi
- Division of Oral and Maxillofacial Surgery, Department of Surgery, University of Geneva and University Hospitals of Geneva, Geneva, Switzerland.
| |
Collapse
|
10
|
Park S, Heo HA, Kim KW, Pyo SW. Expression of osteogenic markers after administration of selective estrogen receptor modulators during implant placement in the osteoporotic rat maxilla. J Oral Sci 2021; 64:53-58. [PMID: 34955485 DOI: 10.2334/josnusd.21-0316] [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: 11/01/2022]
Abstract
PURPOSE This study examined the effects of raloxifene during bone formation around the dental implant in the ovariectomy-induced osteoporotic rat maxilla. METHODS Fifty-four female 10-week-old Sprague-Dawley rats were divided into three groups (n = 18 each); sham-operated (control), ovariectomized (OVX), and ovariectomized and raloxifene-administered (RAL). Eight weeks after ovariectomy, both upper first molars were extracted, and implants were placed 4 weeks post-extraction. The RAL group was given 1 mg/kg of raloxifene per day while the other groups received a vehicle. Six rats in each group were sacrificed at days 4, 7, and 14 and submitted for quantitative reverse transcription polymerase chain reaction and immunohistochemical staining, for evaluation of osteogenic genes expressions. RESULTS The alkaline phosphatase expression was upregulated in the RAL group compared to the OVX group at day 4. The osteocalcin expression was significantly higher between the RAL group and the OVX group at day 7. Immunohistochemical staining revealed increased expression during the initial bone-forming process and indicated more active bone formation in the RAL group than in the OVX group. CONCLUSION Raloxifene administration enhanced the osteogenic genes and proteins expression in the bone around the implant. Further studies are required to establish the long-term clinical effects of raloxifene administration.
Collapse
Affiliation(s)
- Suhyun Park
- Department of Dentistry, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea
| | - Hyun A Heo
- Department of Dentistry, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea
| | - Kyoung Wook Kim
- Department of Dentistry, Graduate School, The Catholic University of Korea
| | - Sung Woon Pyo
- Department of Dentistry, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea
| |
Collapse
|
11
|
State of Evidence on Oral Health Problems in Diabetic Patients: A Critical Review of the Literature. J Clin Med 2021; 10:5383. [PMID: 34830663 PMCID: PMC8618619 DOI: 10.3390/jcm10225383&set/a 912874875+940716348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Diabetes mellitus (DM) is a global health problem, having recognized that in the next 20 years the number of diabetic patients in the world will increase to 642 million. DM exerts enormous repercussions on general health diabetic (especially derived from vascular, cardiac, renal, ocular, or neurological affectation). It entails in addition a high number of deaths directly related to the disease, as well as a high health care cost, estimated at $673 billion annually. Oral cavity is found among all the organs and systems affected in the course of DM. Important pathologies are developed with higher prevalence, such as periodontitis (PD), alterations in salivary flow, fungal infections, oral cancer, and oral potentially malignant disorders (OPMD). It has been proven that PD hinders the metabolic control of DM and that the presence of PD increases the possibility for developing diabetes. Despite the relevance of these oral pathologies, the knowledge of primary care physicians and diabetes specialists about the importance of oral health in diabetics, as well as the knowledge of dentists about the importance of DM for oral health of patients is scarce or non-existent. It is accepted that the correct management of diabetic patients requires interdisciplinary teams, including dentists. In this critical review, the existing knowledge and evidence-degree on the preventive, clinical, diagnosis, prognosis, and therapeutic aspects of oral diseases that occur with a significant frequency in the diabetic population are developed in extension.
Collapse
|
12
|
State of Evidence on Oral Health Problems in Diabetic Patients: A Critical Review of the Literature. J Clin Med 2021. [DOI: 10.3390/jcm10225383
expr 893869204 + 932072443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Diabetes mellitus (DM) is a global health problem, having recognized that in the next 20 years the number of diabetic patients in the world will increase to 642 million. DM exerts enormous repercussions on general health diabetic (especially derived from vascular, cardiac, renal, ocular, or neurological affectation). It entails in addition a high number of deaths directly related to the disease, as well as a high health care cost, estimated at $673 billion annually. Oral cavity is found among all the organs and systems affected in the course of DM. Important pathologies are developed with higher prevalence, such as periodontitis (PD), alterations in salivary flow, fungal infections, oral cancer, and oral potentially malignant disorders (OPMD). It has been proven that PD hinders the metabolic control of DM and that the presence of PD increases the possibility for developing diabetes. Despite the relevance of these oral pathologies, the knowledge of primary care physicians and diabetes specialists about the importance of oral health in diabetics, as well as the knowledge of dentists about the importance of DM for oral health of patients is scarce or non-existent. It is accepted that the correct management of diabetic patients requires interdisciplinary teams, including dentists. In this critical review, the existing knowledge and evidence-degree on the preventive, clinical, diagnosis, prognosis, and therapeutic aspects of oral diseases that occur with a significant frequency in the diabetic population are developed in extension.
Collapse
|
13
|
González-Moles MÁ, Ramos-García P. State of Evidence on Oral Health Problems in Diabetic Patients: A Critical Review of the Literature. J Clin Med 2021; 10:5383. [PMID: 34830663 PMCID: PMC8618619 DOI: 10.3390/jcm10225383] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/09/2021] [Accepted: 11/13/2021] [Indexed: 12/24/2022] Open
Abstract
Diabetes mellitus (DM) is a global health problem, having recognized that in the next 20 years the number of diabetic patients in the world will increase to 642 million. DM exerts enormous repercussions on general health diabetic (especially derived from vascular, cardiac, renal, ocular, or neurological affectation). It entails in addition a high number of deaths directly related to the disease, as well as a high health care cost, estimated at $673 billion annually. Oral cavity is found among all the organs and systems affected in the course of DM. Important pathologies are developed with higher prevalence, such as periodontitis (PD), alterations in salivary flow, fungal infections, oral cancer, and oral potentially malignant disorders (OPMD). It has been proven that PD hinders the metabolic control of DM and that the presence of PD increases the possibility for developing diabetes. Despite the relevance of these oral pathologies, the knowledge of primary care physicians and diabetes specialists about the importance of oral health in diabetics, as well as the knowledge of dentists about the importance of DM for oral health of patients is scarce or non-existent. It is accepted that the correct management of diabetic patients requires interdisciplinary teams, including dentists. In this critical review, the existing knowledge and evidence-degree on the preventive, clinical, diagnosis, prognosis, and therapeutic aspects of oral diseases that occur with a significant frequency in the diabetic population are developed in extension.
Collapse
Affiliation(s)
- Miguel Ángel González-Moles
- School of Dentistry, University of Granada, 18010 Granada, Spain;
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| | - Pablo Ramos-García
- School of Dentistry, University of Granada, 18010 Granada, Spain;
- Instituto de Investigación Biosanitaria ibs.GRANADA, 18012 Granada, Spain
| |
Collapse
|
14
|
Logistic Regression Analysis of the Factors Involved in the Failure of Osseointegration and Survival of Dental Implants with an Internal Connection and Machined Collar: A 6-Year Retrospective Cohort Study. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9684511. [PMID: 34660803 PMCID: PMC8516545 DOI: 10.1155/2021/9684511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 09/01/2021] [Accepted: 09/21/2021] [Indexed: 11/30/2022]
Abstract
Background Although the long-term success rate of dental implants is currently close to 95%, it is necessary to provide more evidence on the factors related to the failure of osseointegration and survival. Purpose To establish the risk factors associated with the failure of osseointegration and survival of dental implants with an internal connection and machined collar and to establish a predictive statistical model. Materials and Methods An analytical, retrospective, and observational clinical study of a sample of 297 implants with a follow-up of up to 76 months. Independent variables related to the implant, patient, and surgical and rehabilitative procedures were identified. The dependent variables were failure of osseointegration and failure of implant survival after prosthetic loading. A survival analysis was carried out by applying the Kaplan-Meier model (significance for p < 0.05). The log-rank test and the Cox regression analysis were applied to the factors that presented differences. Finally, the regression logit function was used to determine whether it is possible to predict the risk of implant failure according to the analyzed variables with the data obtained in this study. Results The percentages of osseointegration and survival were 97.6 and 97.2%, respectively. For osseointegration, there were significant differences according to gender (p = 0.048), and the risk of nonosseointegration was 85% lower in women. Regarding survival, the Cox analysis converged on only two factors, which were smoking and treatment with anticoagulant drugs. The risk of loss was multiplied by 18.3 for patients smoking more than 10 cigarettes per day and by 28.2 for patients treated with anticoagulants. Conclusions The indicated risk factors should be considered, but the analysis of the results is not sufficient to create a predictive model.
Collapse
|
15
|
Severely Atrophic Mandibles Restored With Fiber-Reinforced Composite Prostheses Supported by 5.0-mm Ultra-Short Implants Present High Survival Rates Up To Eight Years. J Oral Maxillofac Surg 2021; 80:81-92. [PMID: 34666033 DOI: 10.1016/j.joms.2021.09.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/15/2021] [Accepted: 09/15/2021] [Indexed: 12/11/2022]
Abstract
PURPOSE Encouraging results have been reported for ultrashort single implants; however, long-term investigations are warranted for full-arch reconstructions. This study evaluated marginal bone loss, implant, and reconstruction survival of fiber-reinforced composite full-arch prostheses supported by 4 ultrashort implants. METHODS Patients with severely atrophic mandibles (Cawood and Howell class V and class VI) were included in this cohort study. Study predictors included time (initial and last follow-up) and vertical (epicrestally or subcrestally) and horizontal implant position (medial or lateral). Outcome variables included bone level changes over time, implant/prosthesis survival. Peri-implant bone level was measured on panoramic radiographs. Descriptive statistics, Kaplan-Meier, mixed model analysis of variance, and univariate and multivariate Cox Proportional Hazards Regression models, adjusted for multiple implants in the same patient, were used for data analyses. RESULTS Eighteen patients (mean 61.22 years old), with 72 implants placed in atrophic mandibles with an average follow-up of 55.4 months (CI, ±4.6/ SD, ±10.6 months) were analyzed. The implant survival rate was 97.2% as 2 implants were not loaded due to non-osseointegration and sensorial disturbances. Average marginal bone level at baseline (1.93 mm) and at the time of last recall (1.91 mm) was not significantly different. While implants placed subcrestally showed no significant difference between baseline (1.91 mm) and last follow up bone level (2.12 mm), implants placed epicrestally demonstrated a significant reduction on their bone level over time (initial: 1.97 mm/ final:1.33 mm). Systemic disorders were a risk factor for implant survival and bone loss. Prostheses cumulative survival rate was 100% (mean observation period of 55 months). The estimated survival rate after the 96-month follow-up was 75% (1 framework fracture after 84 months). CONCLUSION Fixed fiber-reinforced composite full-arch prostheses retained by 4 ultrashort implants showed a stable bone level and high implant/prostheses survival rates up to 8 years.
Collapse
|
16
|
Sun R, Liang C, Sun Y, Xu Y, Geng W, Li J. Effects of metformin on the osteogenesis of alveolar BMSCs from diabetic patients and implant osseointegration in rats. Oral Dis 2021; 28:1170-1180. [PMID: 33606350 DOI: 10.1111/odi.13808] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/09/2021] [Accepted: 02/15/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVES This study aimed to explore the effects of metformin on osteogenic differentiation of alveolar bone marrow mesenchymal stem cells (BMSCs) from type-2 diabetes mellitus (T2DM) patients (DM-BMSCs) and implant osseointegration in rats, screen the optimal concentration, and investigate whether metformin could protect against the adverse impact of T2DM on BMSC osteogenic capacity. SUBJECTS AND METHODS Different concentrations of metformin were administered to human-derived BMSCs and Wistar rats receiving implants. ALP detection, alizarin red staining, real-time RT-PCR and Western blotting were performed to detect osteogenesis and investigate the mechanism. Toluidine blue staining was performed to analyse bone-implant contact in rats. RESULTS Metformin increased implant osseointegration in a rat model and promoted the osteogenic capacity of DM-BMSCs via the AMPK/BMP/Smad signalling pathway, and 125 μM was the optimal concentration; however, concentrations over 200 µM, metformin showed an inhibitory effect on DM-BMSCs. Additionally, metformin at the optimal concentration (125 µM) identified in this study could compensate for the negative impacts of T2DM on the osteogenic differentiation of BMSCs. CONCLUSIONS Metformin can promote the osteogenesis of BMSCs from T2DM patients and osseointegration in rats, and it might be an effective drug for increasing the success rate of T2DM-associated implants.
Collapse
Affiliation(s)
- Rongxin Sun
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Chao Liang
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Yujie Sun
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Yifan Xu
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Wei Geng
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Jun Li
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| |
Collapse
|
17
|
Yaghini J, Kanounisabet N, Mogharehabed A, Torabinia N, Nejad SH. Effect of systemic administration of omeprazole on osseointegration around titanium dental implants: A histomorphometric study in dogs. Dent Res J (Isfahan) 2021. [DOI: 10.4103/1735-3327.318938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
18
|
Mardas N, Dereka X, Stavropoulos A, Patel M, Donos N. The role of strontium ranelate and guided bone regeneration in osteoporotic and healthy conditions. J Periodontal Res 2020; 56:330-338. [PMID: 33368312 DOI: 10.1111/jre.12825] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/03/2020] [Accepted: 10/30/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND/ OBJECTIVES SR is a chemical agent developed for the treatment of osteoporosis. In vitro, SR enhanced replication of osteoprogenitor cells and bone formation. In vivo, in ovariectomized rats SR prevented the biomechanical deterioration of bone while in non-ovariectomized rats, enhanced bone architecture and increased trabecular and cortical bone mass. The aim of this study was to evaluate the effect of SR on bone healing of calvarial critical size defects treated with a deproteinized bovine bone mineral (DBBM) and a collagen barrier (CM), in healthy and osteoporotic rats. MATERIAL AND METHODS Sixty-four, 4-month-old Wistar female rats were used. Osteoporosis was induced by ovariectomy and calcium-deficient diet in half of them. Sixteen ovariectomized (OSR) and 16 healthy (HSR) rats were treated with SR while no medication was administered in the remaining 16 healthy (H) and 16 ovariectomized (O) rats. At 6 weeks after ovariectomy, a 5mm defect was created in each parietal bone of every animal. One defect was treated with DBBM and CM, while the contralateral was left untreated. Qualitative and quantitative histological analysis was performed at 30 and 60 days of healing. A generalized estimating equations test was performed to evaluate the effect of SR and osteoporosis, on new bone formation (NB). RESULTS After 30 days of healing, NB in the untreated defects was 3.4%±1.7%, 4.3%±6.2%, 3.2±4.5%, 15.9±23.5% in O, OSR, H and HSR groups, respectively; after 60 days, NB was 4.7%±4.3%, 11.3%±7%, 7.1%±13.2, 12.1%±13.5%, respectively. In the GBR-treated defects, after 30 days, NB was 2.6%±1.4%, 2.4%±1.6%, 4.5%±4.1%, 10.3%±14.4% in O, OSR, H and HSR groups, respectively; after 60 days, NB was 2.2%±1.6%, 4.3%±4.2%, 7%±5.1%, 10.8%±17.4%, respectively. Osteoporosis (p=0.008) and the absence of strontium ranelate treatment (p=0.01) had a negative impact on NB. CONCLUSION SR may promote bone formation in calvarial defects in healthy and osteoporotic rats, albeit in a moderate extent.
Collapse
Affiliation(s)
- Nikos Mardas
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK
| | - Xanthippi Dereka
- Department of Periodontology, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas Stavropoulos
- Division of Regenerative Dental Medicine and Periodontology, CUMD, University of Geneva, Geneva, Switzerland.,Department of Periodontology, Malmö University, Malmö, Sweden
| | | | - Nikolaos Donos
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK
| |
Collapse
|
19
|
Grzeskowiak RM, Schumacher J, Dhar MS, Harper DP, Mulon PY, Anderson DE. Bone and Cartilage Interfaces With Orthopedic Implants: A Literature Review. Front Surg 2020; 7:601244. [PMID: 33409291 PMCID: PMC7779634 DOI: 10.3389/fsurg.2020.601244] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/25/2020] [Indexed: 12/21/2022] Open
Abstract
The interface between a surgical implant and tissue consists of a complex and dynamic environment characterized by mechanical and biological interactions between the implant and surrounding tissue. The implantation process leads to injury which needs to heal over time and the rapidity of this process as well as the property of restored tissue impact directly the strength of the interface. Bleeding is the first and most relevant step of the healing process because blood provides growth factors and cellular material necessary for tissue repair. Integration of the implants placed in poorly vascularized tissue such as articular cartilage is, therefore, more challenging than compared with the implants placed in well-vascularized tissues such as bone. Bleeding is followed by the establishment of a provisional matrix that is gradually transformed into the native tissue. The ultimate goal of implantation is to obtain a complete integration between the implant and tissue resulting in long-term stability. The stability of the implant has been defined as primary (mechanical) and secondary (biological integration) stability. Successful integration of an implant within the tissue depends on both stabilities and is vital for short- and long-term surgical outcomes. Advances in research aim to improve implant integration resulting in enhanced implant and tissue interface. Numerous methods have been employed to improve the process of modifying both stability types. This review provides a comprehensive discussion of current knowledge regarding implant-tissue interfaces within bone and cartilage as well as novel approaches to strengthen the implant-tissue interface. Furthermore, it gives an insight into the current state-of-art biomechanical testing of the stability of the implants. Current knowledge reveals that the design of the implants closely mimicking the native structure is more likely to become well integrated. The literature provides however several other techniques such as coating with a bioactive compound that will stimulate the integration and successful outcome for the patient.
Collapse
Affiliation(s)
- Remigiusz M. Grzeskowiak
- Large Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, United States
| | - Jim Schumacher
- Large Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, United States
| | - Madhu S. Dhar
- Large Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, United States
| | - David P. Harper
- The Center for Renewable Carbon, Institute of Agriculture, University of Tennessee, Knoxville, TN, United States
| | - Pierre-Yves Mulon
- Large Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, United States
| | - David E. Anderson
- Large Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, United States
| |
Collapse
|
20
|
Murakami H, Igarashi K, Fuse M, Kitagawa T, Igarashi M, Uchibori S, Komine C, Gotouda H, Okada H, Kawai Y. Risk factors for abutment and implant fracture after loading. J Oral Sci 2020; 63:92-97. [PMID: 33311012 DOI: 10.2334/josnusd.20-0443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
PURPOSE Implant component fractures are one of the most serious complications in implant treatment. With a better understanding of the risk factors for fracture in the preoperative, surgery, superstructure, and post-loading phases of implant treatment, low-risk treatment could reduce implant component fractures, leading to a better prognosis. The aim of this study was to clarify the risk factors for abutment and implant fractures that occur after loading, and to perform a retrospective, approximately 10-year follow-up study to explore the risk factors in each treatment phase. METHODS Subjects were fitted with an implant prosthesis between January 2008 and December 2009. In total, 1,126 Ankylos implants in 430 patients were included for analysis. Binary logistic regression analysis was performed to extract factors related to non-fracture and fracture of the abutment or implant as a dependent variable. RESULTS Gender (OR = 3.466, 95% CI 1.296-9.268, P = 0.013), gonial angle (OR = 3.420, 95% CI 1.308-8.945, P = 0.012), and splinting status of the superstructure (OR = 4.456, 95% CI 1.861-10.669, P = 0.001) were identified as significant risk factors. CONCLUSION The risk of fracture is increased in males, especially those with a mandibular angle of less than 120° on panoramic radiographs, and those with a non-splinted superstructure.
Collapse
Affiliation(s)
- Hiroshi Murakami
- Department of Fixed Prosthodontics and Oral Implantology, Nihon University School of Dentistry at Matsudo
| | - Kentaro Igarashi
- Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo
| | - Megumi Fuse
- Liberal Arts (Chemistry), Nihon University School of Dentistry at Matsudo
| | - Tsuyoshi Kitagawa
- Department of Fixed Prosthodontics and Oral Implantology, Nihon University School of Dentistry at Matsudo
| | - Mitsuhiko Igarashi
- Department of Histology, Nihon University School of Dentistry at Matsudo
| | - Satoshi Uchibori
- Department of Fixed Prosthodontics and Oral Implantology, Nihon University School of Dentistry at Matsudo
| | - Chiaki Komine
- Department of Oral Health Science, Division of Laboratory Medicine for Dentistry, Nihon University School of Dentistry at Matsudo
| | - Hiroya Gotouda
- Department of Community Oral Health, Nihon University School of Dentistry at Matsudo
| | - Hiroyuki Okada
- Department of Histology, Nihon University School of Dentistry at Matsudo
| | - Yasuhiko Kawai
- Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo
| |
Collapse
|
21
|
Staedt H, Rossa M, Lehmann KM, Al-Nawas B, Kämmerer PW, Heimes D. Potential risk factors for early and late dental implant failure: a retrospective clinical study on 9080 implants. Int J Implant Dent 2020; 6:81. [PMID: 33251566 PMCID: PMC7701040 DOI: 10.1186/s40729-020-00276-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 11/06/2020] [Indexed: 12/03/2022] Open
Abstract
Background The aim of this study was to analyze potential risk factors for early and late dental implant failure (DIF) in a clinical cohort trial. In a private practice, 9080 implants were inserted during a period of 10 years. In case of DIF, data were classified into early and late DIF and compared to each other in regard of gender, age, site of implantation, implant geometry, and patients’ systemic diseases. Results Three hundred fifty-one implants failed within the observation period (survival rate: 96.13%). Early DIF occurred in 293 implants (83.48%) compared to late DIF in 58 implants (16.52%). Significant earlier DIF was seen in the mandible (OR = 3.729, p < 0.001)—especially in the posterior area—and in younger patients (p = 0.017), whereas an increased likelihood of late DIF was associated with maxillary implants (OR = 3.729, p < 0.001) and older patients. Conclusions Early DIF is about twice as common as late DIF. Main risk factors for early DIF are implant location in the (posterior) mandible as well as younger age. On contrary, late DIF is rather associated with older patients, cancellous bone quality, and longer implants.
Collapse
Affiliation(s)
- Henning Staedt
- Private Practice and Department of Prosthodontics and Materials Science, University Medical Center Rostock, Strempelstraße 13, 18057, Rostock, Germany
| | - Martin Rossa
- Private Practice, Dr. Rossa und Kollegen, Mundenheimer Str. 251, Ludwigshafen, 67061, Germany
| | - Karl Martin Lehmann
- Department of Prosthetic Dentistry, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany
| | - Bilal Al-Nawas
- Department of Oral and Maxillofacial Surgery, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany
| | - Peer W Kämmerer
- Department of Oral and Maxillofacial Surgery, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany
| | - Diana Heimes
- Department of Oral and Maxillofacial Surgery, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany.
| |
Collapse
|
22
|
Dutta SR, Passi D, Singh P, Atri M, Mohan S, Sharma A. Risks and complications associated with dental implant failure: Critical update. Natl J Maxillofac Surg 2020; 11:14-19. [PMID: 33041571 PMCID: PMC7518499 DOI: 10.4103/njms.njms_75_16] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 02/27/2017] [Accepted: 09/09/2019] [Indexed: 11/25/2022] Open
Abstract
Risks and complications have been identified with dental implant failure though there is continuous innovation in implant systems and various interceptive treatment modalities. The success rate of dental implants has increased over a period of years as a treatment option for the rehabilitation of missing teeth. The dental implants are designed that best suits the various types of bone. Endosseous implants fail due to many reasons. Different reasons for the implant failure and their contributing factors have been discussed in this review article. A better understanding of the factors responsible for the implant failure will provide clinical decision-making and may enhance the field of implant dentistry. This article summarizes the factors causing implant failure. This paper presents the results of a survey of dentists practicing implant dentistry and updates regarding their knowledge of risk factors that they consider to be important for predicting dental implant failure.
Collapse
Affiliation(s)
- Shubha Ranjan Dutta
- Department of Oral and Maxillofacial Surgery, MB Kedia Dental College, Birgunj, Nepal
| | - Deepak Passi
- Department of Dentistry, Sub-Divisional Hospital, Ranchi, Jharkhand, India
| | - Purnima Singh
- Department of Physiology, MB Kedia Dental College, Birgunj, Nepal
| | - Mansi Atri
- Department of Public Health Dentistry, E.S.I.C. Dental College and Hospital, Delhi, India
| | - Stuti Mohan
- Department of Orthodontics, Subharti Dental College and Hospital, Meerut, Uttar Pradesh, India
| | - Abhimanyu Sharma
- Department of Oral and Maxillofacial Surgery, E.S.I.C. Dental College and Hospital, Delhi, India
| |
Collapse
|
23
|
Dental Implant Failure Rate and Marginal Bone Loss in Transplanted Patients: A Systematic Review and Meta-Analysis. TRANSPLANTOLOGY 2020. [DOI: 10.3390/transplantology1020008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This systematic review investigates the failure rate and marginal bone loss (MBL) of dental implants placed in patients undergoing solid-organ transplant (SOT) compared to healthy controls. Three databases (PubMed, Web of Sciences, and the Cochrane Library) were searched up to June 2020 (PROSPERO CRD42019124896). Case-control and cohort studies reporting data failure rate and marginal bone loss (MBL) of dental implants placed in SOT patients were included. The risk of bias of observational studies was assessed through the Newcastle-Ottawa Scale (NOS). Four case-control studies fulfilled the inclusion criteria; all had low risk of bias. Meta-analyses revealed consistently lower implant failure rate than control populations at patient and implant levels. SOT patients had a significant difference of −18% (p-value < 0.001) MBL compared to healthy patients. SOT status poses no serious threat to implant survival. Overall, this group of patients presented lower levels of dental implant failure rate and marginal bone loss compared to otherwise healthy patients. Further intervention trials with larger sample size and longer follow-ups are necessary to confirm these summarized results.
Collapse
|
24
|
A multifaceted biomimetic interface to improve the longevity of orthopedic implants. Acta Biomater 2020; 110:266-279. [PMID: 32344174 DOI: 10.1016/j.actbio.2020.04.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/23/2020] [Accepted: 04/09/2020] [Indexed: 01/22/2023]
Abstract
The rise of additive manufacturing has provided a paradigm shift in the fabrication of precise, patient-specific implants that replicate the physical properties of native bone. However, eliciting an optimal biological response from such materials for rapid bone integration remains a challenge. Here we propose for the first time a one-step ion-assisted plasma polymerization process to create bio-functional 3D printed titanium (Ti) implants that offer rapid bone integration. Using selective laser melting, porous Ti implants with enhanced bone-mimicking mechanical properties were fabricated. The implants were functionalized uniformly with a highly reactive, radical-rich polymeric coating generated using a unique combination of plasma polymerization and plasma immersion ion implantation. We demonstrated the performance of such activated Ti implants with a focus on the coating's homogeneity, stability, and biological functionality. It was shown that the optimized coating was highly robust and possessed superb physico-chemical stability in a corrosive physiological solution. The plasma activated coating was cytocompatible and non-immunogenic; and through its high reactivity, it allowed for easy, one-step covalent immobilization of functional biomolecules in the absence of solvents or chemicals. The activated Ti implants bio-functionalized with bone morphogenetic protein 2 (BMP-2) showed a reduced protein desorption and a more sustained osteoblast response both in vitro and in vivo compared to implants modified through conventional physisorption of BMP-2. The versatile new approach presented here will enable the development of bio-functionalized additively manufactured implants that are patient-specific and offer improved integration with host tissue. STATEMENT OF SIGNIFICANCE: Additive manufacturing has revolutionized the fabrication of patient-specific orthopedic implants. Although such 3D printed implants can show desirable mechanical and mass transport properties, they often require surface bio-functionalities to enable control over the biological response. Surface covalent immobilization of bioactive molecules is a viable approach to achieve this. Here we report the development of additively manufactured titanium implants that precisely replicate the physical properties of native bone and are bio-functionalized in a simple, reagent-free step. Our results show that covalent attachment of bone-related growth factors through ion-assisted plasma polymerized interlayers circumvents their desorption in physiological solution and significantly improves the bone induction by the implants both in vitro and in vivo.
Collapse
|
25
|
Osseointegration of Dental Implants in Organ Transplant Patients Undergoing Chronic Immunosuppressive Therapy. IMPLANT DENT 2019; 28:447-454. [DOI: 10.1097/id.0000000000000916] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
26
|
Carey PH, Ren F, Jia Z, Batich CD, Camargo SEA, Clark AE, Craciun V, Neal DW, Esquivel-Upshaw JF. Antibacterial Properties of Charged TiN Surfaces for Dental Implant Application. ChemistrySelect 2019; 4:9185-9189. [PMID: 32149184 PMCID: PMC7059626 DOI: 10.1002/slct.201901001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 08/01/2019] [Indexed: 02/03/2023]
Abstract
The formation and characterization of positively surface charged TiN surfaces were investigated for improving dental implant survival. Surface nitrogen atoms of a traditional TiN implant were converted to a positive charge by a quaternization reaction which greatly increased the antibacterial efficiency. Ti, TiN, and quaternized TiN samples were incubated with human patient subgingival bacteria for 4 hours at 37°C in an anaerobic environment with an approximate 40% reduction in counts on the quaternized surface over traditional Ti and TiN. The samples were challenged with Streptococcus Mutans and fluorescent imaging confirmed significant reduction in the quaternized TiN over the traditional Ti and TiN. Contact angle measurement and X-Ray Photoelectron Spectroscopy (XPS) were utilized to confirm the surface chemistry changes. The XPS results found the charged quaternized nitrogen peak at 399.75 eV that is unique to the quaternized sample.
Collapse
Affiliation(s)
- Patrick H Carey
- Department of Chemical Engineering, University of Florida, Gainesville, FL
| | - Fan Ren
- Department of Chemical Engineering, University of Florida, Gainesville, FL
| | - Ziqi Jia
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL
| | - Christopher D Batich
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL
| | - Samira E A Camargo
- Restorative Dental Sciences, Division of Prosthodontics University of Florida, Gainesville
| | - Arthur E Clark
- Restorative Dental Sciences, Division of Prosthodontics University of Florida, Gainesville
| | - Valentin Craciun
- National Institute for Lasers, Plasma and Radiation Physics, Magurele-Ilfov, Romania, and DENTIX MILLENNIUM SRL, Sabareni-Ilfov, Romania
| | - Daniel W Neal
- Department of Neurosurgery, University of Florida, Gainesville, FL
| | | |
Collapse
|
27
|
Abou-Ayash S, Enkling N, Srinivasan M, Haueter M, Worni A, Schimmel M. Evolution of in vivo assessed retention forces in one-piece mini dental implant-retained mandibular overdentures: 5-Year follow-up of a prospective clinical trial. Clin Implant Dent Relat Res 2019; 21:968-976. [PMID: 31313455 DOI: 10.1111/cid.12816] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/19/2019] [Accepted: 06/20/2019] [Indexed: 01/25/2023]
Abstract
BACKGROUND The evolution of retention forces in one-piece mini dental implants (MDIs) retaining implant overdentures (IODs) is of major importance, as the male parts cannot be exchanged, due to the implant design. PURPOSE To report the evolution of retention forces of one-piece MDIs, retaining mandibular IODs with ball/ O-ring attachments during 5 years assessed in vivo. MATERIALS AND METHODS Four MDIs were installed in the interforaminal region and immediately loaded using the existing mandibular complete denture. Directly post-op, at the 1-year and the 5-year follow-up, the retention forces were assessed with a validated strain gauge at each implant site separately. RESULTS At the male part, changes could only be observed at implant site 34: During the first year, there was a statistically significant increase, whereas the retention forces were decreased at the 5-year follow-up. At the female part, retention forces decreased significantly over time. Baseline values could be reestablished by exchanging the O-rings. The changes of the retention forces were more obvious in the posterior, compared to the anterior implants. CONCLUSIONS Retention forces at the female part decrease significantly over time, when retaining mandibular IODs by MDIs with ball/ O-ring attachments. Baseline values can be reestablished by exchanging the O-rings. At the male part, changes of retention forces depend on the implant location.
Collapse
Affiliation(s)
- Samir Abou-Ayash
- Section for Digital Implant- and Reconstructive Dentistry (DIRecD), Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Switzerland
| | - Norbert Enkling
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Switzerland.,Department of Prosthodontics, University of Bonn, Bonn, Germany
| | - Murali Srinivasan
- Clinic for General, Special Care and Geriatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Marius Haueter
- Division of Gerodontology, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Switzerland
| | | | - Martin Schimmel
- Division of Gerodontology, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Switzerland.,Division of Gerodontology and Removable Prosthodontics, University of Geneva, Geneva, Switzerland
| |
Collapse
|
28
|
An 11-Year Retrospective Research Study of the Predictive Factors of Peri-Implantitis and Implant Failure: Analytic-Multicentric Study of 1279 Implants in Peru. Int J Dent 2019; 2019:3527872. [PMID: 31341478 PMCID: PMC6612967 DOI: 10.1155/2019/3527872] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/30/2019] [Accepted: 05/30/2019] [Indexed: 11/23/2022] Open
Abstract
Aim To analyze the risk factors by logistic regression and perform the analysis of the survival rate of osseointegrated dental implants placed in public and private institutions. Methods An analytic-multicentric study was carried out, where 1279 dental implants that were placed by specialists from January 2006 to October 2017 in public and private institutions (UPCH-SI, HCFAP, CMNAVAL, UPCH-SM, and UPSJB) were evaluated. The variables sex (X1), location (X2), hypertension (X3), antibiotic prophylaxis (X4), diabetes (X5), osteoporosis (X6), bisphosphonates (X7), history of periodontitis (X8), hypercholesterolemia (X9), bone quality (X10), bone quantity (X11), design (X12), smoker (X13), connection (X14), edentulism type (X15), staging (X16), 3D guided surgery (X17), load (X18), bone graft (X19), peri-implantitis (X20), mucositis (X21), and GBR (X22) were collected and analyzed by the Kaplan–Meier survival analysis. The logit analysis was performed among all the variables to choose the best statistical model that explains the true risk factors. The analysis was performed by multivariate logistic regression and the Kaplan–Meier test, at a level of statistical significance of p < 0.05. Results It was found that the failure rate of the 1279 implants evaluated was 17.98% corresponding to only 23 implants lost as they have good longevity over time. When establishing the best multivariate logistic regression model, it was found that the variables that remained stable in relation to their statistically significant value and more stable confidence intervals were age, osteoporosis, bisphosphonates, history of periodontitis, bone quality, bone graft, connection, number of implants, GBR (guided bone regeneration), and follow-up. Conclusions Dental implants placed by specialists in public and private institutions had a failure rate similar to that in studies previously published in other countries.
Collapse
|
29
|
Heo HA, Park S, Jeon YS, Pyo SW. Effect of Raloxifene Administration on Bone Response Around Implant in the Maxilla of Osteoporotic Rats. IMPLANT DENT 2019; 28:272-278. [DOI: 10.1097/id.0000000000000881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
30
|
Hernández G, Paredes V, López-Pintor RM, de Andrés A, de Vicente JC, Sanz M. Implant treatment in immunosuppressed renal transplant patients: A prospective case-controlled study. Clin Oral Implants Res 2019; 30:524-530. [PMID: 30980770 DOI: 10.1111/clr.13437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/04/2019] [Accepted: 04/04/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The aim of this clinical study was to evaluate long-term outcomes of implant therapy in a cohort of immunosuppressed renal transplant patients compared with a matched control group. MATERIAL AND METHODS Pharmacologically immunosuppressed renal transplant patients received dental implant treatment between 2001 and 2011. Periodontal, clinical and radiographic parameters were prospectively measured with a mean follow-up of 116.8 months (range from 84 to 192 months). A matched controlled non-transplant sample receiving similar implant treatment in the same time was included as a control group. RESULTS Implant survival rate was over 98% in both test and control groups (100% and 98.84%, respectively). Peri-implant mucositis was diagnosed in 46.80% of the implants in the study group and in 48.80% in the control group. Peri-implantitis occurred in 5.10% of the implants in the study group and in 8.10% of the controls. Wound healing and post-operative pain were similar in both groups. CONCLUSIONS Despite the limitations of this study, pharmacological immunosuppression in renal transplant patients did not affect implant outcomes. Renal transplant patients should be carefully controlled periodically after implant treatment. CLINICAL IMPLICATIONS The results from this investigation justify the use of dental implants for the dentalrehabilitation of immunosuppressed patients after renal transplantation provided they follow the necessarylong-term monitoring and regular maintenance of their oral and systemic health.
Collapse
Affiliation(s)
- Gonzalo Hernández
- Department of Dental Clinical Specialties, School of Dentistry, Complutense University, Madrid, Spain
| | - Víctor Paredes
- Department of Dental Clinical Specialties, School of Dentistry, Complutense University, Madrid, Spain
| | - Rosa María López-Pintor
- Department of Dental Clinical Specialties, School of Dentistry, Complutense University, Madrid, Spain
| | - Amado de Andrés
- Department of Nephrology, Hospital 12 de octubre, Madrid, Spain
| | - Juan Carlos de Vicente
- Department of Oral and Maxillofacial Surgery, Hospital of Asturias, School of Medicine and Dentistry, Oviedo University, Oviedo, Spain
| | - Mariano Sanz
- Department of Dental Clinical Specialties, School of Dentistry, Complutense University, Madrid, Spain
| |
Collapse
|
31
|
|
32
|
Al Zahrani S, Al Mutairi AA. Crestal Bone Loss Around Submerged and Non-Submerged Dental Implants in Individuals with Type-2 Diabetes Mellitus: A 7-Year Prospective Clinical Study. Med Princ Pract 2019; 28:75-81. [PMID: 30396170 PMCID: PMC6558320 DOI: 10.1159/000495111] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 11/05/2018] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE In establishing an evidence-based rationale for the optimal use of implant therapy in patients with type 2 diabetes mellitus (T2DM), it is essential to first understand the impact of glycemic control on early healing and the success of dental implants. The objective of this study was to evaluate crestal bone loss (CBL) and stability around submerged and non-submerged dental implants in Saudi patients with well- and poorly controlled T2DM. SUBJECT AND METHODS Thirty-five patients with well-controlled T2DM (24 males and 11 females) and 32 poorly controlled T2DM patients (19 males and 13 females) were included. CBL was measured on digital radiographs; resonance frequency analysis (RFA) measurements were made for each implant at the time of fixture placement and at 3 months in both the groups. A p value less than 0.05 was considered statistically significant. RESULTS A total of 124 dental implants were placed. Mean RFA values between baseline and 3 months in poorly controlled T2DM patients was statistically significant (p = 0.048). CBL at first year (p = 0.047), second year (p = 0.041), third year (p = 0.046), and seventh year (p = 0.035) was significantly worse in poorly controlled T2DM. CBL around non-submerged dental implants showed statistically significant differences at all time-intervals (p < 0.05). CONCLUSION Poorly controlled T2DM patients present worse peri-implant bone outcomes as compared to patients with well-controlled T2DM. We suggest that the predictability of successful dental implant therapy outcomes depends on the maintenance of optimal haemoglobin A1c levels.
Collapse
Affiliation(s)
- Saeed Al Zahrani
- Division of Prosthodontics, Department of Dental Services, Central Region, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia,
| | - Abdullah A Al Mutairi
- Division of Advanced Education in General Dentistry, Department of Dental Services, Central Region, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| |
Collapse
|
33
|
Dereka X, Calciolari E, Donos N, Mardas N. Osseointegration in osteoporotic-like condition: A systematic review of preclinical studies. J Periodontal Res 2018; 53:933-940. [PMID: 29845622 DOI: 10.1111/jre.12566] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2018] [Indexed: 12/11/2022]
Abstract
Osteoporosis is one of the most common skeletal disorders affecting a significant percentage of people worldwide. Research data suggested that systemic diseases such as osteoporosis could act as risk factors for osseointegration, jeopardizing the healing process and thus the predictability of dental implant success on compromised patients. It is well accepted that preclinical studies in animal models reproducing the osteoporotic condition are one of the most important stages in the research of new biomaterials and therapeutic modalities. The aim of this systematic review was to investigate whether osteoporosis compromises dental implant osseointegration in experimental osteoporotic-like conditions. A 3-stage systematic literature research was conducted in MEDLINE via OVID and EMBASE up to and including March 2017. Experimental studies reporting on dental implant osseointegration on different osteoporotic animal models were assessed. The studies had to report on the percentage of bone-to-implant contact (%BIC) as the primary outcome. ARRIVE guidelines for reporting on animal research were applied to evaluate the methodological quality and risk of bias of the studies. Fifty-seven studies met the inclusion criteria and were assessed qualitatively. The most adopted animal model was the rat. A variability of %BIC values was observed, ranging from 30% to 99% and from 26% to 94% for the healthy and osteoporotic group, respectively. The great majority (47) of the included studies concluded that estrogen deficiency significantly affects BIC values, 9 studies stated that it was not possible to observe statistical differences in BIC between ovariectomized and healthy groups and 1 study did not provide a comparison between the healthy and osteoporotic group. Owing to the great heterogeneity in implant surface, study design, observation time-points, site of implant placement and reported outcomes, a meta-analysis could not be performed. An overall high risk of bias was observed, owing to the limited information on animal housing and husbandry, baseline characteristics and health status, ethical statement and allocation to the experimental groups provided. Although the available studies seem to suggest a lower osseointegration in osteoporotic-like conditions, no robust conclusions can be drawn due to the great heterogeneity and overall low quality of the available studies. Future studies with emphasis on minimizing the possible sources of bias and evaluating osseointegration of dental implants placed into jawbones instead of long bones are warranted.
Collapse
Affiliation(s)
- X Dereka
- Department of Periodontology, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - E Calciolari
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - N Donos
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - N Mardas
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| |
Collapse
|
34
|
Takanche JS, Kim JE, Kim JS, Lee MH, Jeon JG, Park IS, Yi HK. Chitosan-gold nanoparticles mediated gene delivery of c-myb facilitates osseointegration of dental implants in ovariectomized rat. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S807-S817. [PMID: 30307328 DOI: 10.1080/21691401.2018.1513940] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Osseointegration of dental implants is affected by osteoporosis. The purpose of this study was overcome the implant failure and facilitate the osseointegration of dental implants by c-myb in ovariectomized (OVX)-induced osteoporosis. c-myb is a transcription factor and supports bone formation. Plasmid DNA/c-myb conjugated with chitosan-gold nanoparticles (Ch-GNPs/c-myb) promoted osteogenesis and inhibited osteoclastogenesis in MC-3T3 E1 cells. Ch-GNPs/c-myb involved the reduction of the nuclear factor of activated T-cells 1, c-Fos, and tartrate-resistant acid phosphatase-positive multinucleated osteoclasts in receptor activator of nuclear factor-κB ligand (RANKL) stimulated bone marrow macrophages. In vivo results of rat mandibles demonstrated Ch-GNP/c-myb-coated titanium (Ti) implants increased the volume and density of newly formed bone and the osseointegration of dental implant with bone by micro computed tomography examination after OVX-induced osteoporosis. Immunohistochemical analysis showed increased c-myb expression and upregulation of bone morphogenic proteins, osteoprotegerin and EphB4, as well as the downregulation of RANKL by Ch-GNP/c-myb-coated Ti implants. Hematoxylin and Eosin staining expressed new bone formation by Ch-GNP/c-myb-coated Ti implants. Our findings indicated that c-myb delivered by Ch-GNPs supports osseointegration of dental implant even in osteoporotic condition. c-myb may be applicable to support dental implant integration and treatment in age-dependent bone destruction disease.
Collapse
Affiliation(s)
| | - Ji-Eun Kim
- a Department of Oral Biochemistry , Chonbuk National University , Jeonju , Korea
| | - Jeong-Seok Kim
- a Department of Oral Biochemistry , Chonbuk National University , Jeonju , Korea
| | - Min-Ho Lee
- b Department of Dental Materials , Chonbuk National University , Jeonju , Korea
| | - Jae-Gyu Jeon
- c Department of Preventive Dentistry, Institute of Oral Bioscience, School of Dentistry , Chonbuk National University , Jeonju , Korea
| | - Il-Song Park
- d Division of Advanced Materials Engineering , Chonbuk National University , Jeonju , Korea
| | - Ho-Keun Yi
- a Department of Oral Biochemistry , Chonbuk National University , Jeonju , Korea
| |
Collapse
|
35
|
Mombelli A, Hashim D, Cionca N. What is the impact of titanium particles and biocorrosion on implant survival and complications? A critical review. Clin Oral Implants Res 2018; 29 Suppl 18:37-53. [DOI: 10.1111/clr.13305] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Andrea Mombelli
- Division of Periodontology; University Clinics of Dental Medicine; University of Geneva; Geneva Switzerland
| | - Dena Hashim
- Division of Periodontology; University Clinics of Dental Medicine; University of Geneva; Geneva Switzerland
| | - Norbert Cionca
- Division of Periodontology; University Clinics of Dental Medicine; University of Geneva; Geneva Switzerland
| |
Collapse
|
36
|
Mori G, Kobayashi T, Ito T, Yajima Y. Implant-supported Prostheses in Patient with Sjögren's Syndrome: Clinical Report with 3-year Follow-up. THE BULLETIN OF TOKYO DENTAL COLLEGE 2018; 59:201-206. [PMID: 30224614 DOI: 10.2209/tdcpublication.2017-0036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Sjögren's syndrome (SS), an autoimmune disorder, affects the exocrine glands, including the lacrimal and salivary glands. It is characterized by symptoms of dry eye and dry mouth. As secretion of saliva decreases, patients with SS experience rampant caries, pain in the oral mucosa, inflammation and hardening of the salivary glands, abnormal taste, dysphagia, and loss of teeth earlier than healthy individuals. A removable partial denture is often used as a prosthesis after tooth loss. Compromised salivary lubrication, however, can produce traumatic ulceration of the mucosa, making use of a removable prosthesis in SS patients painful. In such cases, a dental implant is likely to be requested as an alternative. This report describes dental implant treatment in an SS patient, a 50-year-old woman who presented with the chief complaint of masticatory dysfunction and pain due to a removable partial denture. Eight implants were placed in the maxillary and mandibular first molar tooth and second molar tooth regions. Following a 4-month non-loading period, second-stage surgery and provisional restoration with a screwretained implant temporary crown were performed. Screw-retained superstructures were fitted by means of a customized titanium abutment and zirconia crown as the final restoration. No complications, including inflammation of peri-implant soft tissue or resorption of peri-implant bone, were observed at 3 years following placement of the superstructures.
Collapse
Affiliation(s)
- Gentaro Mori
- Department of Oral and Maxillofacial Implantology, Tokyo Dental College
| | | | - Taichi Ito
- Department of Oral and Maxillofacial Implantology, Tokyo Dental College
| | - Yasutomo Yajima
- Department of Oral and Maxillofacial Implantology, Tokyo Dental College
| |
Collapse
|
37
|
Can Genetic Factors Compromise the Success of Dental Implants? A Systematic Review and Meta-Analysis. Genes (Basel) 2018; 9:genes9090444. [PMID: 30200629 PMCID: PMC6162655 DOI: 10.3390/genes9090444] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/28/2018] [Accepted: 08/31/2018] [Indexed: 02/06/2023] Open
Abstract
Dental implants provide a predictable treatment option for partial and complete edentulism via the placement of a fixed permanent artificial root to support prosthetic dental crowns. Despite the high survival rates, long-term dental implant failures are still reported, leading to implant removals and additional financial and health burdens. While extrinsic factors that improve the success rate of implants have been well explored, the impact of genetic factors on this matter is poorly understood. A systematic review and meta-analysis study was conducted to determine whether genetic factors contribute to an increased risk of dental implant failures. A comprehensive search for peer-reviewed articles on dental implants and genetic factors was performed using various literature database libraries. The study design was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, and the obtained records were registered in the International Prospective Register of Systematic Reviews (PROSPERO) database. According to the exclusion/inclusion criteria, 13 studies were eligible for this study out of 809 articles. The meta-analysis of the combined association studies of DNA variations and dental implants did not indicate an increased risk for implant failure due to DNA variations in IL-1B, IL-10 and TNF-α. This study emphasizes the need for larger randomized controlled clinical trials to inform clinicians and patients about the role of genetic factors on dental implant survival and the success rate in healthy and compromised patients.
Collapse
|
38
|
Liu J, Chen HY, DoDo H, Yousef H, Firestone AR, Chaudhry J, Johnston WM, Lee DJ, Emam HA, Kim DG. Efficacy of Cone-Beam Computed Tomography in Evaluating Bone Quality for Optimum Implant Treatment Planning. IMPLANT DENT 2018; 26:405-411. [PMID: 28125517 DOI: 10.1097/id.0000000000000542] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE This study examined (1) if cone-beam computed tomography (CBCT) can determine relative differences in bone mineral density distribution using clinical images of patients' mandibular bone and (2) if the relative differences can be used to detect the effects of sex and age on bone mineral density distribution. MATERIALS AND METHODS Sixty-six clinical CBCT images from patients (36 females and 30 males) of 3 age groups (40, 50, and 60 years) were identified. Alveolar (AB) and basal cortical bone (CB) regions were digitally isolated. A histogram of gray levels, which are proportional to degrees of bone mineralization, was obtained from each region. Mean, variability (SD and coefficient of variation), and percentage differences of gray level parameters between AB and basal CBs were computed. RESULTS Significant sex differences in gray level variability were observed within the postmenopausal age group (P < 0.042). CONCLUSION These findings suggest that clinical CBCT images can be a valuable tool in providing information on bone quality, which is an important criterion for optimum planning for dental implant placement.
Collapse
Affiliation(s)
- Jie Liu
- *Private Practice, Former Resident, Division of Orthodontics, College of Dentistry, Ohio State University, Columbus, OH. †Undergraduate Student, Division of Orthodontics, College of Dentistry, Ohio State University, Columbus, OH. ‡Predoctoral Student, Division of Orthodontics, College of Dentistry, Ohio State University, Columbus, OH. §Master Student, Clinical and Translational Science, College of Medicine, Ohio State University, Columbus, OH. ¶Associate Professor, Division of Orthodontics, College of Dentistry, Ohio State University, Columbus, OH. ‖Clinical Associate Professor, Department of Oral Pathology, Medicine and Radiology, School of Dentistry, Indiana University, Indianapolis, IN. #Professor Emeritus, Division of General Practice and Materials Science, College of Dentistry, Ohio State University, Columbus, OH. **Assistant Professor, Division of Restorative Sciences and Prosthodontics, College of Dentistry, The Ohio State University, Columbus, OH. ††Division of Oral and Maxillofacial Surgery, College of Dentistry, The Ohio State University, Columbus, OH
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
D'Aiuto F, Gable D, Syed Z, Allen Y, Wanyonyi KL, White S, Gallagher JE. Evidence summary: The relationship between oral diseases and diabetes. Br Dent J 2018. [PMID: 28642531 DOI: 10.1038/sj.bdj.2017.544] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Introduction This paper is the third of four rapid reviews undertaken to explore the relationships between oral health and general medical conditions in order to support teams within Public Health England, health practitioners and policymakers.Aims This review aimed to explore the nature of the association between poor oral health and diabetes when found in the same individuals or populations, having reviewed the most contemporary evidence in the field.Methods The reviews were undertaken by four groups each comprising consultant clinicians from medicine and dentistry, trainees, public health and academics. The methodology involved a streamlined rapid review process and synthesis of the findings.Results The results identified a number of systematic reviews of low to high quality suggesting that diabetes is associated with periodontal disease, tooth loss, and oral cancer in particular, and that the management of oral diseases, most notably periodontal care, has a short-term beneficial influence on metabolic outcomes related to diabetes; however, there is no evidence that this is sustained over the long-term and reduces the prevalence of the long-term complications.Conclusion Current evidence, of mixed quality, suggests a number of associations between oral diseases and diabetes mellitus (diabetes). Further high quality research is required in this field.
Collapse
Affiliation(s)
- F D'Aiuto
- Professor in Periodontology, Head of Periodontology, Eastman Dental Institute, 256 Gray's Inn Road, London, WC1X 8LD
| | - D Gable
- Consultant, Diabetes and Endocrinology, Imperial College Healthcare NHS Trust, Diabetes and Endocrinology, 1st Floor Mint Wing, St Mary's Hospital, Praed Street, Paddington, W2 1NY
| | - Z Syed
- Specialist trainee in Oral Medicine, Leeds Teaching Hospital NHS Trust, Clarendon Way, Leeds, LS2 9LU
| | - Y Allen
- Clinical Fellow in leadership, Health Education England, Stewart House, 32 Russell Square, London, WC1B 5DN
| | - K L Wanyonyi
- (Formerly Research Associate, King's College London Dental Institute, Population and Patient Health) Senior Lecturer in Dental Public Health, University of Portsmouth Dental Academy, William Beatty Building, Hampshire Terrace, Portsmouth, PO1 2QG
| | - S White
- Director of Dental Public Health, Population Health &Care Division, Health and Wellbeing Directorate, Public Health England, Skipton House, 80 London Road, London, SE1 6LH
| | - J E Gallagher
- Newland Pedley Professor of Oral Health Strategy, Head of Population and Patient Health, Honorary Consultant in Dental Public Health, King's College London Dental Institute, Denmark Hill Campus, Bessemer Road, London, SE5 9RS
| |
Collapse
|
40
|
Factors Affecting the Occurrence of Complications in the Early Stages After Dental Implant Placement: A Retrospective Cohort Study. IMPLANT DENT 2018; 27:221-225. [PMID: 29557798 DOI: 10.1097/id.0000000000000753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To evaluate the background factors related to the occurrence of complications in the early stages after dental implant placement. MATERIALS AND METHODS A total of 289 outpatients who received dental implants were retrospectively evaluated for the presence or absence of complications. Background factors, including age, sex, implant width, implant length, implant site, number of implants placed, Periotest values at the time of implant placement, presence/absence of systemic disease (particularly diabetes), and the use of anticoagulation therapy, were compared between patients with and without complications. Logistic regression analysis was performed to identify significant risk factors for the occurrence of complications after dental implant placement. RESULTS Complications in the early stages after dental implant placement occurred in 25 (8.65%) patients. The patients with complications were older than those without complications (P = 0.003). In addition, the incidence of complications was significantly higher in patients with systemic diseases (P = 0.004) and in those receiving anticoagulation therapy (P = 0.005). Logistic regression analysis revealed that age was a significant risk factor (P = 0.025) for early-stage complications, whereas the number of implants, presence of diabetes, and the use of anticoagulation therapy were not significant risk factors. CONCLUSIONS Our results show that age is a significant factor influencing the occurrence of complications in the early stages after dental implant placement. Therefore, clinicians should consider this factor when developing their treatment strategies.
Collapse
|
41
|
Podaropoulos L. Increasing the Stability of Dental Implants: the Concept of Osseodensification. BALKAN JOURNAL OF DENTAL MEDICINE 2017. [DOI: 10.1515/bjdm-2017-0023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Summary
One of the most important factors that affect osseointegration is the primary stability of the implant. Dental implants inserted at the posterior region of the maxilla exhibit the lowest success rates as the low density bone in this area often jeopardize rigid fixation of the implant. Many surgical techniques have been developed to increase the primary stability of an implant placed in low density bone, such as bicortical fixation of the implant, undersized preparation of the implant bed and bone condensation by the use of osteotomes. A new promising technique, named osseodensification, has been recently developed that creates an autograft layer of condensed bone at the periphery of the implant bed by the aid of specially designed burs rotating in a clockwise and anti-clockwise direction. The purpose of this review is to emphasize that implant primary stability is strongly influenced by the surgical technique, to quote and briefly analyse the various surgical procedures laying weight to osseodensification procedure.
Collapse
Affiliation(s)
- Leonidas Podaropoulos
- Department of Oral and Maxillofacial Surgery, Dental School, National and Kapodistrian, University of Athens , Greece
| |
Collapse
|
42
|
Duan Y, Ma W, Li D, Wang T, Liu B. Enhanced osseointegration of titanium implants in a rat model of osteoporosis using multilayer bone mesenchymal stem cell sheets. Exp Ther Med 2017; 14:5717-5726. [PMID: 29250137 PMCID: PMC5729390 DOI: 10.3892/etm.2017.5303] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 03/17/2017] [Indexed: 12/26/2022] Open
Abstract
The present study aimed to investigate whether bone marrow-derived mesenchymal stem cell (BMSC) sheets combined with titanium implants enhanced implant osseointegration in an ovariectomized (OVX) rat model of osteoporosis. Sprague-Dawley rats were randomly assigned into a test group and control group. Allogenic BMSCs were collected from the rats, cultured and stored via cryopreservation. At 6 months post-ovariectomy, establishment of the OVX model was confirmed by micro-computed tomography (CT) measurements. BMSC sheets were subsequently layered and wrapped over titanium implants for implantation. Unmodified implants served as the control. At 8 weeks post-implantation, samples were observed by micro-CT reconstruction and histomorphometric evaluation. Micro-CT reconstruction identified a marked improvement in the surrounding bone volume following treatment, with data analyses indicating a significant increase in bone volume in the BMSC-implant group compared with the control implant group (P<0.05). In addition, histological staining identified new bone formation and an increased rate of bone-implant contact surrounding the BMSC-implant constructs. These results indicate that the use of BMSC sheets as a novel tissue engineering approach improves the osseointegration of titanium implants in an osteoporosis model. This method may expand the operative indications in patients with osteoporosis and improve the success rate of clinical dental implant treatments.
Collapse
Affiliation(s)
- Yan Duan
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Dental Implants, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wei Ma
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Dental Implants, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Dehua Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Dental Implants, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Tongfei Wang
- Department of Oncology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Baolin Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Dental Implants, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| |
Collapse
|
43
|
Galli S, Stocchero M, Andersson M, Karlsson J, He W, Lilin T, Wennerberg A, Jimbo R. The effect of magnesium on early osseointegration in osteoporotic bone: a histological and gene expression investigation. Osteoporos Int 2017; 28:2195-2205. [PMID: 28349251 PMCID: PMC5486930 DOI: 10.1007/s00198-017-4004-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/08/2017] [Indexed: 12/27/2022]
Abstract
UNLABELLED Magnesium has a key role in osteoporosis and could enhance implant osseointegration in osteoporotic patients. Titanium implants impregnated with Mg ions were installed in the tibia of ovariectomized rats. The release of Mg induced a significant increase of bone formation and the expression of anabolic markers in the peri-implant bone. INTRODUCTION The success of endosseous implants is highly predictable in patients possessing normal bone status, but it may be impaired in patients with osteoporosis. Thus, the application of strategies that adjuvate implant healing in compromized sites is of great interest. Magnesium has a key role in osteoporosis prevention and it is an interesting candidate for this purpose. In this study, the cellular and molecular effects of magnesium release from implants were investigated at the early healing stages of implant integration. METHODS Osteoporosis was induced in 24 female rats by means of ovariectomy and low-calcium diet. Titanium mini-screws were coated with mesoporous titania films and were loaded with magnesium (test group) or left as native (control group). The implants were inserted in the tibia and femur of the rats. One, 2 and 7 days after implantation, the implants were retrieved and histologically examined. In addition, expression of genes was evaluated in the peri-implant bone tissue at day 7 by means of quantitative polymerase chain reactions with pathway-oriented arrays. RESULTS The histological evaluation revealed that new bone formation started already during the first week of healing for both groups. However, around the test implants, new bone was significantly more abundant and spread along a larger surface of the implants. In addition, the release of magnesium induced a significantly higher expression of BMP6. CONCLUSIONS These results provide evidence that the release of magnesium promoted rapid bone formation and the activation of osteogenic signals in the vicinity of implants placed in osteoporotic bone.
Collapse
Affiliation(s)
- S Galli
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 205 06, Malmö, Sweden.
| | - M Stocchero
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 205 06, Malmö, Sweden
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - M Andersson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - J Karlsson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - W He
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - T Lilin
- Center for Biomedical Research, ECole Nationale Vétérinaire d'Alfort, 94700, Maisons Alfort, France
| | - A Wennerberg
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 205 06, Malmö, Sweden
| | - R Jimbo
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Faculty of Odontology, Malmö University, Malmö, Sweden
| |
Collapse
|
44
|
de Medeiros FCFL, Kudo GAH, Leme BG, Saraiva PP, Verri FR, Honório HM, Pellizzer EP, Santiago Junior JF. Dental implants in patients with osteoporosis: a systematic review with meta-analysis. Int J Oral Maxillofac Surg 2017; 47:480-491. [PMID: 28651805 DOI: 10.1016/j.ijom.2017.05.021] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 05/09/2017] [Accepted: 05/24/2017] [Indexed: 11/16/2022]
Abstract
There is currently no consensus regarding the survival rate of osseointegrated implants in patients with osteoporosis. A systematic review with meta-analysis was performed to evaluate the survival rate of implants in such patients. The PubMed/MEDLINE, Web of Science, Cochrane Library, and SciELO databases were used to identify articles published up to September 2016. The systematic review was performed in accordance with PRISMA/PICO requirements and the risk of bias was assessed (Australian National Health and Medical Research Council scale). The relative risk (RR) of implant failure and mean marginal bone loss were analyzed within a 95% confidence interval (CI). Fifteen studies involving 8859 patients and 29,798 implants were included. The main outcome of the meta-analysis indicated that there was no difference in implant survival rate between patients with and without osteoporosis, either at the implant level (RR 1.39, 95% CI 0.93-2.08; P=0.11) or at the patient level (RR 0.98, 95% CI 0.50-1.89; P=0.94). However, the meta-analysis for the secondary outcome revealed a significant difference in marginal bone loss around implants between patients with and without osteoporosis (0.18mm, 95% CI 0.05-0.30, P=0.005). Data heterogeneity was low. An increase in peri-implant bone loss was observed in the osteoporosis group. Randomized and controlled clinical studies should be conducted to analyze possible biases.
Collapse
Affiliation(s)
- F C F L de Medeiros
- Pró-Reitoria de Pesquisa e Pós-graduação (PRPPG), Universidade do Sagrado Coração, Bauru, SP, Brazil
| | - G A H Kudo
- Pró-Reitoria de Pesquisa e Pós-graduação (PRPPG), Universidade do Sagrado Coração, Bauru, SP, Brazil
| | - B G Leme
- Pró-Reitoria de Pesquisa e Pós-graduação (PRPPG), Universidade do Sagrado Coração, Bauru, SP, Brazil
| | - P P Saraiva
- Pró-Reitoria de Pesquisa e Pós-graduação (PRPPG), Universidade do Sagrado Coração, Bauru, SP, Brazil
| | - F R Verri
- Dental School of Araçatuba, UNESP - Universidade Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - H M Honório
- Department of Scientific Methodology and Statistics, Bauru School of Dentistry, USP - University of São Paulo, São Paulo, Brazil
| | - E P Pellizzer
- Dental School of Araçatuba, UNESP - Universidade Estadual Paulista, Araçatuba, São Paulo, Brazil
| | - J F Santiago Junior
- Pró-Reitoria de Pesquisa e Pós-graduação (PRPPG), Universidade do Sagrado Coração, Bauru, SP, Brazil.
| |
Collapse
|
45
|
Vidal F, Vidal R, Bochnia J, de Souza RC, Gonçalves LS. Dental implants and bone augmentation in HIV-infected patients under HAART: Case report and review of the literature. SPECIAL CARE IN DENTISTRY 2017; 37:150-155. [PMID: 28181688 DOI: 10.1111/scd.12219] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The present study reviewed the literature regarding dental implants in HIV-infected patients and reports the long-term follow-up of three clinical cases of patients under HAART that received bone augmentation and dental implants. The first case presents a young patient with a large defect in the mandible, as a consequence of a longitudinal fracture, that was treated with guided bone regeneration (GBR) previously to implant placement. The second case reported is middle-aged man with a fractured upper lateral incisor treated with immediate placement and simultaneous GBR to repair the dehiscence due to the buccal bone resorption. The third case shows an elderly patient that underwent sinus lifting with the simultaneous placement of two implants. All cases were treated after patients were medically controlled and followed for at least 10 years. Controlled HIV-infected patients undergoing HAART may be candidates to implant rehabilitation, as long as their plasmatic HIV viral load and CD4+ T lymphocytes count are within the parameters that indicate immune stability. Long-term stability of soft and hard tissues can be obtained maintaining function and esthetics. However, stronger evidence, based on prospective, controlled clinical trials is needed to provide the dental and medical teams with conclusive data.
Collapse
Affiliation(s)
- Fábio Vidal
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro, Brazil. Av. Alfredo Baltazar da Silveira, 580-cobertura, Recreio dos Bandeirantes, Rio de Janeiro, Brazil
| | - Rafael Vidal
- ADITIV lab, Rio de Janeiro, Brazil. Avenida João Cabral de Melo Neto, 350 bloco 1, loja A, Barra da Tijuca, Rio de Janeiro, Brazil
| | - Jeter Bochnia
- Federal University of Rio de Janeiro, Rio de Janeiro, Brazil, Hospital Universitário Clementino Fraga Filho-Rua Professor Rodolpho Paulo Rocco, 325, 2nd floor-Ilha do Fundão, Rio de Janeiro, Brazil
| | - Rodrigo Carvalho de Souza
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro, Brazil. Av. Alfredo Baltazar da Silveira, 580-cobertura, Recreio dos Bandeirantes, Rio de Janeiro, Brazil
| | - Lucio Souza Gonçalves
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro, Brazil. Av. Alfredo Baltazar da Silveira, 580-cobertura, Recreio dos Bandeirantes, Rio de Janeiro, Brazil
| |
Collapse
|
46
|
Abstract
OBJECTIVES Uncontrolled diabetes mellitus is associated with impaired osseointegration. Diabetic individuals might benefit from bone anabolic therapies. Intermittent administration of 1-34 parathyroid hormone (PTH) stimulates bone formation in rodent models. However, this anabolic effect fails in diabetic rats. Whether the anabolic effect of PTH can be achieved in insulin-controlled diabetic rats has not been investigated yet. MATERIALS AND METHODS After diabetes induction with streptozotocin in 40 female Wistar rats, the animals were randomly divided into 4 groups: diabetes, diabetes plus PTH, insulin-treated diabetes, and insulin-treated diabetes plus PTH. After 1 week, miniscrews were inserted in the tibiae. Osmotic pumps with insulin or saline solution were implanted. Animals received 60 mg/kg PTH or saline solution. Histomorphometric analysis was performed. RESULTS In diabetic rats, no changes of medullary periimplant bone area or bone-to-implant contacts (BICs) were achieved with or without treatment with PTH. However, also animals treated with insulin failed to response significantly to PTH regarding bone area (7.4 ± 4.1% and 8.1 ± 4.1%) and BICs (33.7 ± 16.9% and 49.9 ± 11.9%). CONCLUSION These results demonstrate that the metabolic characteristics of the diabetic rats produced a condition unable to respond to PTH treatment, even when hyperglycemia was controlled with insulin.
Collapse
|
47
|
Schwarz F, Sculean A, Engebretson SP, Becker J, Sager M. Animal models for peri-implant mucositis and peri-implantitis. Periodontol 2000 2017; 68:168-81. [PMID: 25867986 DOI: 10.1111/prd.12064] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2014] [Indexed: 11/30/2022]
Abstract
The treatment of infectious diseases affecting osseointegrated implants in function has become a demanding issue in implant dentistry. Since the early 1990s, preclinical data from animal studies have provided important insights into the etiology, pathogenesis and therapy of peri-implant diseases. Established lesions in animals have shown many features in common with those found in human biopsy material. The current review focuses on animal studies, employing different models to induce peri-implant mucositis and peri-implantitis.
Collapse
|
48
|
Lee JW, An JH, Park SH, Chong JH, Kim GS, Han J, Jung S, Kook MS, Oh HK, Ryu SY, Park HJ. Retrospective clinical study of an implant with a sandblasted, large-grit, acid-etched surface and internal connection: analysis of short-term success rate and marginal bone loss. Maxillofac Plast Reconstr Surg 2016; 38:42. [PMID: 27882311 PMCID: PMC5097118 DOI: 10.1186/s40902-016-0089-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 09/29/2016] [Indexed: 12/03/2022] Open
Abstract
Background The purpose of this retrospective study was to evaluate the clinical utility of an implant with a sandblasted, large-grit, acid-etched (SLA) surface and internal connection. Methods Six patients who received dental implants in the Department of Oral and Maxillofacial Surgery, Chonnam National University Dental Hospital, were analyzed by factors influencing the success rate and marginal bone loss. Factors included patient’s age, sex, implant installation site, whether bone graft was done, type of bone graft materials, approaching method if sinus lift was done, and the size of the fixture. In addition, the marginal bone loss was analyzed by using a radiograph. Results All implants were successful, and the cumulative survival rate was 100 %. Average marginal bone loss of 6 months after the installation was 0.52 mm and 20 months after the functional loading was 1.06 mm. Total marginal bone resorption was 1.58 mm on average. There was no statistically significant difference in mesial and distal marginal bone loss. Conclusions The short-term clinical success rate of the implant with an SLA surface and internal connection was satisfactory. Moreover, the marginal bone loss was also consistent with the implant success criteria.
Collapse
Affiliation(s)
- Jae-Wang Lee
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Jun Hyeong An
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Sang-Hoon Park
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Jong-Hyon Chong
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Gwang-Seok Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - JeongJoon Han
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Seunggon Jung
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Min-Suk Kook
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Hee-Kyun Oh
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Sun-Youl Ryu
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| | - Hong-Ju Park
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, Republic of Korea
| |
Collapse
|
49
|
Retrospective long-term evaluation of dental implants in totally and partially edentulous patients. Part I: survival and marginal bone loss. IMPLANT DENT 2016; 23:732-7. [PMID: 25290286 DOI: 10.1097/id.0000000000000171] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE This retrospective longitudinal study aims to assess long-term outcomes of osseointegrated dental implants in partially and totally edentulous patients. MATERIALS AND METHODS Patients willing to sign the informed consent and attend a check-up were included. Implant failures were recorded, and marginal bone level and bone loss were evaluated on intraoral radiographs. Univariate and multivariate statistical analyses were conducted to determine the influence of various factors. Complications and patient satisfaction were recorded. RESULTS One hundred five patients who received 342 implants were included. Mean follow-up was 13.19 ± 3.70 years. 9.4% of implants were lost, and 78.1% of patients retained all implants placed. Mean marginal bone loss was 0.77 ± 1.10 mm, being greater than 3 mm in 2.5% of analyzed implants. Factors with possible influence on implant survival and marginal bone loss were smoking, osteopenia or osteoporosis, check-up frequency, implant surface, length and position, and type of prosthesis. 24.8% of patients remained free of complications. Patient satisfaction was high. CONCLUSIONS In our sample, which included both totally and partially edentulous patients, long-term implant survival was more than 90% with a mean marginal bone loss of 0.77 mm and an implant survival at patient level of 78%; patient satisfaction was high despite the fact that complications were frequent.
Collapse
|
50
|
Guobis Z, Pacauskiene I, Astramskaite I. General Diseases Influence on Peri-Implantitis Development: a Systematic Review. EJOURNAL OF ORAL MAXILLOFACIAL RESEARCH 2016; 7:e5. [PMID: 27833730 PMCID: PMC5100645 DOI: 10.5037/jomr.2016.7305] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 08/22/2016] [Indexed: 12/16/2022]
Abstract
OBJECTIVES To systematically review the influence of systemic diseases or medications used in their treatment on the dental implant therapy success. MATERIAL AND METHODS The search strategy was implemented on the National Library of Medicine database (MEDLINE) (Ovid) and EMBASE electronic databases between January 2006 and January 2016. Human studies with available English articles analysing the relationship between dental implant therapy success and systemic diseases, such as diabetes mellitus, AIDS/HIV, rheumatoid arthritis, osteoporosis, Crohn's disease, cardiovascular diseases, scleroderma, Sjögren's syndrome, lichen planus, ectodermal dysplasia, post-transplantation status, were included in present review according to the PRISMA guidelines. The review protocol was registered on PROSPERO system with the code CRD42016033662. RESULTS Present review included forty one retrospective and prospective follow-up studies, case-control studies, case report series and cohort studies. Despite some limitations this study reveals positive results of implantation in most systemic conditions that should be interpreted with caution. Influence of cardiovascular diseases on the dental implantation success should be explored deeply, because of controversial results and likelihood of comorbidity expressed by a history of cardiovascular diseases and periodontitis. There is only a weak relationship with bone density in osteoporosis and implant failure. All the other diseases did not show significant effect on implantation success. CONCLUSIONS Recent studies with low strength of evidence and controversy show that systemic diseases may have potential effect on the success of implantation, but further detailed studies are needed to provide these findings.
Collapse
Affiliation(s)
- Zygimantas Guobis
- Department of Oral and Dental Pathology, Lithuanian University of Health Sciences, Kaunas Lithuania
| | - Ingrida Pacauskiene
- Department of Oral and Dental Pathology, Lithuanian University of Health Sciences, Kaunas Lithuania
| | - Inesa Astramskaite
- Department of Maxillofacial Surgery, Lithuanian University of Health Sciences, Kaunas Lithuania
| |
Collapse
|