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Jonker JA, Tirlet G, Dagba A, Marniquet S, Ouwerkerk M, Cune MS, Gresnigt MMM. A 32-month evaluation of lithium disilicate cantilever resin-bonded fixed dental prostheses to replace a missing maxillary incisor. J Prosthet Dent 2023:S0022-3913(23)00545-0. [PMID: 37718177 DOI: 10.1016/j.prosdent.2023.07.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 09/19/2023]
Abstract
STATEMENT OF PROBLEM The absence of a tooth in the esthetic zone can cause emotional and social distress. The use of minimally invasive and visually pleasing lithium disilicate resin-bonded fixed dental prostheses (RBFDPs) may be a suitable option for replacing a missing maxillary incisor. However, the available literature on lithium disilicate cantilever RBFDPs is limited. PURPOSE This retrospective multicenter study assessed the survival and success rates of lithium disilicate anterior cantilever RBFDPs with an average follow-up period of 3 years up to 9 years. MATERIAL AND METHODS RBFDPs delivered by 3 operators were clinically assessed for survival using a modified United States Public Health Service criteria list. The incidence density was determined for each criterion and operator. The standard error and 95% confidence interval were calculated for each incidence density difference (α=.05 for all analyses). RESULTS A total of 108 RBFDPs were evaluated after a mean period of 32.45 months, ranging from 14 days to 111 months. None of the restorations exhibited failure, carious lesions, or fractures during the follow-up period. The primary reasons for reduced success rates were inflammation of the surrounding soft tissues and discoloration, with incidence densities of 0.074 and 0.057 per year, respectively. Significant differences were observed among RBFDPs from different operators for criteria that included adaptation, color match, marginal adaptation, polishability, surface staining, gingival health, and antagonist wear. CONCLUSIONS Cantilever lithium disilicate RBFDPs appear to be suitable for short-term restoration. RBFDPs exhibited visible changes after short-term follow-up. However, these changes did not result in failure.
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Affiliation(s)
- Joyce A Jonker
- Graduate student, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Gil Tirlet
- Associate Professor, Department of Prosthetic Dentistry, Faculty of Dental Surgery, Paris Descartes University, Sorbonne Paris Cite, Montrouge, France; Private practice, Paris, France
| | | | | | - Marinus Ouwerkerk
- Postgraduate student, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Marco S Cune
- Professor, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Professor, Department of Oral Maxillofacial Surgery, Prosthodontics and Special Dental Care, St. Antonius Hospital, Nieuwegein, the Netherlands
| | - Marco M M Gresnigt
- Associate Professor, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Associate Professor, Department of Special Dental Care, Martini Hospital, Groningen, the Netherlands..
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Kadkhodazadeh M, Amid R, Moscowchi A, Lakmazaheri E. Short-term and long-term success and survival rates of implants supporting single-unit and multiunit fixed prostheses: A systematic review and meta-analysis. J Prosthet Dent 2023:S0022-3913(23)00008-2. [PMID: 36781339 DOI: 10.1016/j.prosdent.2022.12.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 02/13/2023]
Abstract
STATEMENT OF PROBLEM Whether placing implants to replace each missing tooth or using implant-supported fixed partial dentures provides better outcomes is unclear. PURPOSE The purpose of this systematic review and meta-analysis was to assess the success and survival rates of implants supporting single-unit and multiunit fixed prostheses by using conventional protocols for placement and loading in short- and long-term follow-ups. MATERIAL AND METHODS An electronic search was conducted in PubMed, Scopus, and Web of Science for studies published up to March 17, 2022. Comparative studies that reported the success or survival rates of both single-unit and splinted multiunit prostheses were considered for qualitative and quantitative analyses. RESULTS A total of 68 publications comprising 11 271 implants were included. Compared with the single prostheses, the splinted multiunit group showed no significant differences in implant success rates in the short-term (risk difference=-0.004; 95% confidence interval (CI)=-0.033 to 0.025; P=.780) and long-term (risk difference=0.003; 95% confidence interval (CI)=-0.029 to 0.034; P=.874) follow-ups. Significant statistical differences were also not found in terms of the survival rates of the 2 groups (short-term risk difference=-0.004; 95% CI=-0.031 to 0.023; P=.779, long-term risk difference=-0.002; 95% CI=-0.029 to 0.025; P=.887). CONCLUSIONS Implants supporting single-unit or splinted multiunit prostheses seem to be a predictable treatment in terms of survival and success over short and long periods. Nonetheless, it seems that cantilever and nonsplinted multiunit prostheses should be used with more caution.
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Affiliation(s)
- Mahdi Kadkhodazadeh
- Professor, Research Institute for Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Professor, Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Amid
- Associate Professor, Research Institute for Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Associate Professor, Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Anahita Moscowchi
- Assistant Professor, Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ehsan Lakmazaheri
- Undergraduate student, Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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José Sánchez Reyes Á, de Moura MB, Cartelli CA, Bernardes SR, Trojan LC, Thomé G. Prospective evaluation of bone remodeling in full-arch rehabilitations with morse taper implants: a case series study with 1 year follow-up. J Long Term Eff Med Implants 2022; 32:83-92. [DOI: 10.1615/jlongtermeffmedimplants.2022042402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Do TA, Le HS, Shen YW, Huang HL, Fuh LJ. Risk Factors related to Late Failure of Dental Implant-A Systematic Review of Recent Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E3931. [PMID: 32498256 PMCID: PMC7312800 DOI: 10.3390/ijerph17113931] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/29/2020] [Accepted: 05/30/2020] [Indexed: 11/17/2022]
Abstract
Resolving late failure of dental implant is difficult and costly; however, only few reviews have addressed the risk factors associated with late failure of dental implant. The aim of this literature review was to summarize the influences of different potential risk factors on the incidence of late dental implant failure. The protocol of this systematic review was prepared and implemented based on the PRISMA (Preferred reporting items for systematic reviews and meta-analyses) guideline. In December 2018, studies published within the previous 10 years on late dental implant failure were selected by fulfilling the eligibility criteria and the risk factors identified in qualified studies were extracted by using a predefined extraction template. Fourteen eligible studies were assessed. The common risk factors for late failure were divided into three groups according to whether they were related to (1) the patient history (radiation therapy, periodontitis, bruxism and early implant failure), (2) clinical parameters (posterior implant location and bone grade 4) or (3) decisions made by the clinician (low initial stability, more than one implant placed during surgery, inflammation at the surgical site during the first year or using an overdenture with conus-type connection). Clinicians should be cautions throughout the treatment process of dental implant-from the initial examination to the treatment planning, surgical operation and prosthesis selection-in order to minimize the risk of late failure of dental implant.
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Affiliation(s)
- Thanh An Do
- School of Dentistry, China Medical University, 91 Hsueh-Shih Road, Taichung 40402, Taiwan; (T.A.D.); (Y.-W.S.)
| | - Hoang Son Le
- Department of Oral Surgery, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hồng Bàng, Phường 11, Quận 5, Ho Chi Minh City 700000, Vietnam;
| | - Yen-Wen Shen
- School of Dentistry, China Medical University, 91 Hsueh-Shih Road, Taichung 40402, Taiwan; (T.A.D.); (Y.-W.S.)
| | - Heng-Li Huang
- School of Dentistry, China Medical University, 91 Hsueh-Shih Road, Taichung 40402, Taiwan; (T.A.D.); (Y.-W.S.)
- Department of Bioinformatics and Medical Engineering, Asia University, 500 Lioufeng Rd., Wufeng, Taichung 41354, Taiwan
| | - Lih-Jyh Fuh
- School of Dentistry, China Medical University, 91 Hsueh-Shih Road, Taichung 40402, Taiwan; (T.A.D.); (Y.-W.S.)
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Yuenyongorarn P, Kan JYK, Rungcharassaeng K, Matsuda H, Roe P, Lozada JL, Caruso J. Facial Gingival Changes With and Without Socket Gap Grafting Following Single Maxillary Anterior Immediate Tooth Replacement: One-Year Results. J ORAL IMPLANTOL 2020; 46:496-505. [DOI: 10.1563/aaid-joi-d-19-00187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This 1-year prospective study evaluated horizontal and vertical facial gingival tissue changes after immediate implant placement and provisionalization (IIPP) with and without bone graft in the implant-socket gap (ISG). During IIPP, 10 patients received bone graft material in the ISG (G group), while the other 10 patients did not (NG group). The implants were evaluated for implant stability quotient (ISQ), modified plaque index (mPI), modified bleeding index (mBI), marginal bone level (MBL), facial gingival level (FGL), and facial gingival profile (FGP) changes. The mean ISQ value at 9-month follow-up was statistically significantly greater than on the day of implant surgery (P < .05). The mPI and mBI scores demonstrated that patients were able to maintain a good level of hygiene. There were no statistically significant differences in the mean MBL changes between the G and NG groups (P > .05). There were statistically significant differences in FGL changes between the G (-0.77 mm) and NG (-1.35 mm) groups (P = .035). There were no statistically significant differences in FGP changes between the G and NG groups (P > .05). However, statistically significant differences were noted in FGP change between the 3–12 and 0–12 month intervals in both groups (P < .05). Within the limitations of this study, although no significant differences were noted in FGP changes between groups, G group experienced significantly less FGL changes than NG group. Bone graft material placement into ISG seems to be advantageous for tissue preservation during IIPP. However, future long-term studies, with larger sample size, are needed to validate the efficacy of such procedure
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Affiliation(s)
| | - Joseph Y. K. Kan
- Department of Restorative Dentistry, Loma Linda University School of Dentistry, Loma Linda, Calif
| | - Kitichai Rungcharassaeng
- Department of Orthodontics and Dentofacial Orthopedics, Loma Linda University School of Dentistry, Loma Linda, Calif
| | | | - Phillip Roe
- Department of Restorative Dentistry, Loma Linda University School of Dentistry, Loma Linda, Calif
| | - Jaime L. Lozada
- Advanced Education in Implant Dentistry, Loma Linda University School of Dentistry, Loma Linda, Calif
| | - Joseph Caruso
- Department of Orthodontics and Dentofacial Orthopedics, Loma Linda University School of Dentistry, Loma Linda, Calif
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Ten-year survival of immediate-loading implants in fully edentulous mandibles in the Japanese population: a multilevel analysis. J Prosthodont Res 2018; 63:35-39. [PMID: 29776845 DOI: 10.1016/j.jpor.2018.04.001] [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] [Received: 12/29/2017] [Revised: 02/24/2018] [Accepted: 04/05/2018] [Indexed: 11/24/2022]
Abstract
PURPOSE To evaluate the long-term clinical results of and risk factors for immediate-loading implant treatment of completely edentulous mandibles. METHODS We retrospectively studied 220 implants in 52 patients who received immediate-loading implants in fully edentulous mandibles. Kaplan-Meier survival analyses, log-rank tests, and multilevel mixed-effects parametric survival analysis was used for statistical analyses. RESULTS Thirteen of implants in seven patients failed, and the 10-year cumulative implant survival rate was 93.9 % and significantly (p=0.049) higher in women than in men. None of the predictor variables were significantly associated with implant survival, although sex tended to be associated with implant survival. CONCLUSIONS Immediate-loading implant treatment for completely edentulous mandibles had acceptable clinical results in the long term. Although we could not identify significant risk factors, we established a multilevel mixed-effects parametric survival analysis with the immediate-loading implant survival data.
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Gallucci GO, Hamilton A, Zhou W, Buser D, Chen S. Implant placement and loading protocols in partially edentulous patients: A systematic review. Clin Oral Implants Res 2018; 29 Suppl 16:106-134. [PMID: 30328194 DOI: 10.1111/clr.13276] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To systematically review the evidence for the clinical outcome of fixed implant prostheses treated with different combinations of implant placement and loading protocols in partially edentulous patients. MATERIALS AND METHODS An electronic search was performed in Medline, Embase, and Central to identify studies investigating the outcome of implants subjected to immediate placement + immediate restoration/loading (Type 1A), immediate placement + early loading (Type 1B), immediate placement + conventional loading (Type 1C), early placement + immediate restoration/loading (Type 2-3A), early placement + early loading (Type 2-3B), early placement + conventional loading (Type 2-3C), late placement + immediate restoration/loading (Type 4A), late placement + early loading (Type 4B), late placement + conventional loading (Type 4C) with implant-supported fixed dental prostheses (IFDPs) in partially edentulous patients. Only human studies with at least 10 cases and a minimum follow-up time of 12 months, reporting on solid-screw-type implants with rough surfaces and an intra-osseous diameter between 3 and 6 mm, were included. A cumulative survival rate for each type of the implant placement and loading protocols was weighted by the duration of follow-up and number of implants. RESULTS The search provided 5,248 titles from which 2,362 abstracts and 449 full-text articles were screened. A total of 69 publications that comprised 23 comparative studies (15 randomized controlled trials, 7 controlled clinical trials) and 47 noncomparative studies (34 prospective cohort studies, 13 retrospective cohort studies) were included for analysis. Considerable heterogeneity in study design was found, and therefore, a meta-analysis of controlled studies was not possible. The weighted cumulative survival rate of each type of placement and loading protocol was 98.4% (Type 1A), 98.2% (Type 1B), 96.0% (Type 1C), 100% (Type 2-3B), 96.3% (Type 2-3C), 97.9% (Type 4A), 98.3% (Type 4B), and 97.7% (Type 4C). Type 1C, Type 2-3C, Type 4B, and Type 4C were scientifically and clinically validated (SCV). Type 1A, Type 1B, and Type 4A were clinically documented (CD), and Type 2-3A and Type 2-3B were clinically insufficiently documented (CID). CONCLUSIONS Evaluating outcomes in oral implantology by combining the placement and loading protocols are paramount. The selected loading protocol appears to influence the outcome of immediate implant placement.
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Affiliation(s)
- German O Gallucci
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts
| | - Adam Hamilton
- Division of Regenerative and Implant Sciences, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts
| | - Wenjie Zhou
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts
- Second Dental Clinic, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Daniel Buser
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Stephen Chen
- Melbourne Dental School, The University of Melbourne, Melbourne, Vic., Australia
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CARTELLI CA, SARTORI IADM, THOMÉ G, MELO ACM. Retrospective evaluation of the survival rate of single tooth prostheses supported in external hexagonal implants: mean follow-up of 9 years. REVISTA DE ODONTOLOGIA DA UNESP 2018. [DOI: 10.1590/1807-2577.09418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Introduction The use of osseointegrated dental implants for the rehabilitation of patients has revolutionized dentistry. Objective To retrospectively evaluate the survival rate and the frequency of complications with external hexagon platform supporting single crowns. Material and method Dental forms of 110 patients who received 143 implants at the Ilapeo College (2004-2015) were used. The variables were: age, gender, systemic involvement at the time of surgery, region, implant design, type of surface, fixation system, pillar type and prosthesis material. The outcome variables were the incidence of complications in the implant or prosthesis and time in use. The mean follow-up period was 9 years. Result 32.8% had some systemic disease. Ninety-six implants (67.1%) were installed in the maxilla and 47 (32.9%) in the mandible, 87 (60.8%) were in the posterior region and 56 (39.2%) in the anterior region, while 40 (28%) were placed in regions that had received bone reconstruction. The majority (97.2%) of the implants presented surface treatment, 42% had a cylindrical design and 58% were tapered. The majority of the prosthetic components (89.6%) used were UCLAs and most of the prostheses were fused-to-metal (79.7%). The rate of prosthetic complications was 19.58% and three implants had been lost (97.9% survival rate). There was no statistical difference between the variables analyzed for both the occurrence of prosthetic complications and for the loss of the implant. Conclusion Implants with external hexagon connection were an effective and predictable option to support crowns and had high survival rates.
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Affiliation(s)
| | | | - Geninho THOMÉ
- Instituto Latino Americano de Pesquisa e Ensino Odontológico, Brasil
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Esfahrood ZR, Ahmadi L, Karami E, Asghari S. Short dental implants in the posterior maxilla: a review of the literature. J Korean Assoc Oral Maxillofac Surg 2017; 43:70-76. [PMID: 28462189 PMCID: PMC5410430 DOI: 10.5125/jkaoms.2017.43.2.70] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/24/2016] [Accepted: 05/04/2016] [Indexed: 01/03/2023] Open
Abstract
The purpose of this study was to perform a literature review of short implants in the posterior maxilla and to assess the influence of different factors on implant success rate. A comprehensive search was conducted to retrieve articles published from 2004 to 2015 using short dental implants with lengths less than 10 mm in the posterior maxilla with at least one year of follow-up. Twenty-four of 253 papers were selected, reviewed, and produced the following results. (1) The initial survival rate of short implants in the posterior maxilla was not related to implant width, surface, or design; however, the cumulative success rate of rough-surface short implants was higher than that of machined-surface implants especially in performance of edentulous dental implants of length <7 mm. (2) While bone augmentation can be used for rehabilitation of the atrophic posterior maxilla, short dental implants may be an alternative approach with fewer biological complications. (3) The increased crown-to-implant (C/I) ratio and occlusal table (OT) values in short dental implants with favorable occlusal loading do not seem to cause peri-implant bone loss. Higher C/I ratio does not produce any negative influence on implant success. (4) Some approaches that decrease the stress in posterior short implants use an implant designed to increase bone-implant contact surface area, providing the patient with a mutually protected or canine guidance occlusion and splinting implants together with no cantilever load. The survival rate of short implants in the posterior edentulous maxilla is high, and applying short implants under strict clinical protocols seems to be a safe and predictable technique.
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Affiliation(s)
- Zeinab Rezaei Esfahrood
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Loghman Ahmadi
- Department of Periodontics, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Elahe Karami
- Department of Periodontics, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Shima Asghari
- International Branch, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Ohyama T, Yasuda H, Shibuya N, Tadokoro S, Nakabayashi S, Namaki S, Hara Y, Ogawa T, Ishigami T. Three-dimensional finite element analysis of the effects of implant diameter and photofunctionalization on peri-implant stress. J Oral Sci 2017. [DOI: 10.2334/josnusd.16-0144] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Tetsuo Ohyama
- Department of Partial Denture Prosthodontics, Nihon University School of Dentistry
| | - Hiroyasu Yasuda
- Department of Partial Denture Prosthodontics, Nihon University School of Dentistry
| | - Norio Shibuya
- Department of Partial Denture Prosthodontics, Nihon University School of Dentistry
| | - Satomi Tadokoro
- Department of Partial Denture Prosthodontics, Nihon University School of Dentistry
| | - Shinya Nakabayashi
- Department of Partial Denture Prosthodontics, Nihon University School of Dentistry
| | - Shunsuke Namaki
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry
| | - Yaeko Hara
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry
| | - Takahiro Ogawa
- Laboratory for Bone and Implant Sciences, Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, Biomaterials, and Hospital Dentistry, UCLA School of Dentistry
| | - Tomohiko Ishigami
- Department of Partial Denture Prosthodontics, Nihon University School of Dentistry
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Multidisciplinary Approach in the Management of a Complex Case: Implant-Prosthetic Rehabilitation of a Periodontal Smoking Patient with Partial Edentulism, Malocclusion, and Aesthetic Diseases. Case Rep Dent 2017; 2017:6348570. [PMID: 28421148 PMCID: PMC5379076 DOI: 10.1155/2017/6348570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 03/13/2017] [Indexed: 11/22/2022] Open
Abstract
Complex periprosthetic cases are considered as challenges by clinicians. Clinical and radiographic parameters should be considered separately to make the right choice between an endodontically or periodontally compromised treated tooth and implant. Therefore, in order to decide whether the tooth is safe or not, data that have to be collected are specific parameters of both the patient and the clinician. In addition, the presence of periodontal, prosthetic, and orthodontic diseases requires patients to be set in multidisciplinary approach. The aim of this case report is to describe how the multidisciplinary approach could be the best way to manage difficult cases of implant-prosthetic rehabilitation. How to rehabilitate with fixed prosthesis on natural teeth and dental implants a smoker patient who presents with active periodontitis, multiple edentulous areas, dental malocclusion, and severe aesthetic problems was also described.
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Goiato MC, de Medeiros RA, Sônego MV, de Lima TMT, Pesqueira AA, dos Santos DM. Stress distribution on short implants with different designs: a photoelastic analysis. J Med Eng Technol 2016; 41:115-121. [DOI: 10.1080/03091902.2016.1239276] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Herrmann J, Hentschel A, Glauche I, Vollmer A, Schlegel KA, Lutz R. Implant survival and patient satisfaction of reduced diameter implants made from a titanium-zirconium alloy: A retrospective cohort study with 550 implants in 311 patients. J Craniomaxillofac Surg 2016; 44:1940-1944. [PMID: 27765553 DOI: 10.1016/j.jcms.2016.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 08/11/2016] [Accepted: 09/19/2016] [Indexed: 11/29/2022] Open
Abstract
The aim of the study was to evaluate implant survival of reduced-diameter implants compared to regular-diameter implants. A retrospective evaluation of 154 Straumann Bone Level Roxolid® implants (diameter 3.3 mm) with SLActive®-surface in 107 patients, which were inserted between 2009 and 2010 in private practice, was performed. The mean observation period was 22.4 ± 8.2 months. 396 Straumann SLActive® implants (4.1 mm and 4.8 mm) in 204 patients, with an observation period of 28.4 ± 10.1 months served as control group. Implant survival rate, resonance frequency analysis and patient satisfaction were evaluated. The implant survival rate was 97.4% in the test vs. 98.5% in the control group. Resonance frequency analysis showed statistically significant lower values for the reduced-diameter implants. Patient satisfaction showed no significant difference between the test and the control group. Reduced-diameter implants displayed high survival rates during the period investigated and represent a convincing treatment alternative. Long-term follow-up investigations confirmed the high implant survival rates of 96.8% (after 69.7 ± 12.3 months) in the test group and 98.5% (after 76.0 ± 13.6 months) in the control group.
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Affiliation(s)
- Jan Herrmann
- Private Practice, Lothar-Streit-Straße 10b, 08056 Zwickau, Germany; Department of Oral and Maxillofacial Surgery (Director of the Institution: Prof. Dr. med. Dr. med. dent. Dr. h.c. Friedrich Wilhelm Neukam), University Hospital Erlangen, Friedrich Alexander Universität Erlangen-Nürnberg, Östliche Stadtmauerstrasse 27, 91054 Erlangen, Germany
| | - Andreas Hentschel
- Private Practice, Lothar-Streit-Straße 10b, 08056 Zwickau, Germany; Department of Oral and Maxillofacial Surgery (Director of the Institution: Prof. Dr. med. Dr. med. dent. Dr. h.c. Friedrich Wilhelm Neukam), University Hospital Erlangen, Friedrich Alexander Universität Erlangen-Nürnberg, Östliche Stadtmauerstrasse 27, 91054 Erlangen, Germany
| | - Ingmar Glauche
- Institute for Medical Informatics and Biometry (IMB) (Director of the Institution: Prof. Dr. rer. med. Ingo Röder), Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | | | - Karl Andreas Schlegel
- Department of Oral and Maxillofacial Surgery (Director of the Institution: Prof. Dr. med. Dr. med. dent. Dr. h.c. Friedrich Wilhelm Neukam), University Hospital Erlangen, Friedrich Alexander Universität Erlangen-Nürnberg, Östliche Stadtmauerstrasse 27, 91054 Erlangen, Germany
| | - Rainer Lutz
- Department of Oral and Maxillofacial Surgery (Director of the Institution: Prof. Dr. med. Dr. med. dent. Dr. h.c. Friedrich Wilhelm Neukam), University Hospital Erlangen, Friedrich Alexander Universität Erlangen-Nürnberg, Östliche Stadtmauerstrasse 27, 91054 Erlangen, Germany.
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Effect of 3- and 4-mm interimplant distances on the height of interimplant bone crest: a histomorphometric evaluation measured on bone level dental implants in minipig. IMPLANT DENT 2016; 23:522-8. [PMID: 25192165 DOI: 10.1097/id.0000000000000153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE To analyze crestal bone loss changes that may affect the gingival height around an implant and bone loss in interproximal areas. When implants are placed adjacent to one another, interimplant bone loss around 1 implant may combine with the implant bone loss around the adjacent implant to affect the crestal bone loss interproximally. MATERIALS AND METHODS The primary objective of this study was to evaluate histologically and histomorphometrically the effect that this implant design with a horizontally displaced implant-abutment junction has on the height of the crest of bone, between adjacent implants separated by 2 different distances: 4 mm and 3 mm. A secondary objective was to evaluate the percentage of bone-to-implant contact, interproximal soft tissue height, location of the junctional epithelium, and length of connective tissue contact to abutment and/or implant, for the 2 different distances. RESULTS Results showed that the interproximal bone loss measured from the edge of the implant platform to the bone crest was not different for interimplant distances of 4 or 3 mm. In addition, the secondary objective parameters also demonstrated similar results between the 2 interimplant distances. CONCLUSION This study showed that interimplant bone levels can usually be maintained at similar levels for 4- and 3-mm distances during at least 2 months.
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Austin S, Bailey D, Chandu A, Dastaran M, Judge R. Analysis of commonly reported medical conditions amongst patients receiving dental implant therapy in private practice. Aust Dent J 2016; 60:343-52. [PMID: 25330368 DOI: 10.1111/adj.12237] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND The population seeking implants in private practice is a demographically and medically unique group. Understanding their medical needs can improve treatment planning and service delivery specifically for this population. METHODS Privately practising dental clinicians from Victoria, Australia, participated in a five-year retrospective study. Data were collected from the medical histories of 4116 patients who met the inclusion criterion of at least one implant placed within the study period of 1 January 2005 to 31 December 2009. Descriptive statistics were used to describe patient demographics and commonly reported medical conditions. RESULTS The most common age group to receive implant therapy was between 51 and 60 years (30.4% of patients). The patient population reported a broad range of co-morbidities including psychiatric disorders (83 patients), cardiovascular disorders (253 patients), gastrointestinal disorders (224 patients) and respiratory disorders (502 patients). Smoking was less prevalent amongst the study population compared to the general population. CONCLUSIONS The population assessed in this study was a medically diverse group. Clinicians must be familiar with their target demographic and understand how the common co-morbidities amongst this patient group can influence clinical decision making and outcomes.
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Affiliation(s)
- S Austin
- Melbourne Dental School, The University of Melbourne, Victoria.,Victorian/Tasmanian Oral and Maxillofacial Training Programme
| | - D Bailey
- Melbourne Dental School, The University of Melbourne, Victoria.,Oral Health CRC, Carlton, Victoria.,eviDent Foundation, South Yarra, Victoria
| | - A Chandu
- Melbourne Dental School, The University of Melbourne, Victoria.,Western Hospital, Footscray, Victoria
| | - M Dastaran
- Melbourne Dental School, The University of Melbourne, Victoria.,Victorian/Tasmanian Oral and Maxillofacial Training Programme
| | - R Judge
- Melbourne Dental School, The University of Melbourne, Victoria
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Wang WCW, Suzuki T. Utilization of extracted teeth as provisional restorations following immediate implant placement - A case report. SINGAPORE DENTAL JOURNAL 2015; 36:23-28. [PMID: 26684492 DOI: 10.1016/j.sdj.2015.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 10/23/2015] [Indexed: 06/05/2023]
Abstract
This case report utilized a patient's natural teeth as provisional restorations supported by immediately placed implants to provide a seamless transition from hopeless teeth to implant supported restorations.
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Affiliation(s)
- Wendy C W Wang
- Discipline of Prosthodontic Dentistry, National University of Singapore, Singapore; Department of Periodontics and Implant Dentistry, New York University, USA.
| | - Takanori Suzuki
- Department of Periodontics and Implant Dentistry, New York University, USA
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17
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Sousa V, Mardas N, Farias B, Petrie A, Needleman I, Spratt D, Donos N. A systematic review of implant outcomes in treated periodontitis patients. Clin Oral Implants Res 2015; 27:787-844. [DOI: 10.1111/clr.12684] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2015] [Indexed: 11/26/2022]
Affiliation(s)
- Vanessa Sousa
- Department of Clinical Research; Periodontology Unit; UCL Eastman Dental Institute; London UK
| | - Nikos Mardas
- Centre for Adult Oral Health, Periodontology Unit; QMUL Bart's and The London School of Dentistry and Hospital; London UK
| | - Bruna Farias
- Federal University of Pernambuco; Recife-Pernambuco Brazil
| | - Aviva Petrie
- Biostatistics Unit; UCL Eastman Dental Institute; London UK
| | - Ian Needleman
- Department of Clinical Research; Periodontology Unit; UCL Eastman Dental Institute; London UK
- International Centre for Evidence-Based Oral Health; UCL Eastman Dental Institute; London UK
| | - David Spratt
- Department of Microbial Diseases; UCL Eastman Dental Institute; London UK
| | - Nikolaos Donos
- Department of Clinical Research; Periodontology Unit; UCL Eastman Dental Institute; London UK
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18
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Noda K, Arakawa H, Kimura-Ono A, Yamazaki S, Hara ES, Sonoyama W, Maekawa K, Okura K, Shintani A, Matsuka Y, Kuboki T. A longitudinal retrospective study of the analysis of the risk factors of implant failure by the application of generalized estimating equations. J Prosthodont Res 2015; 59:178-84. [DOI: 10.1016/j.jpor.2015.04.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 04/08/2015] [Accepted: 04/21/2015] [Indexed: 10/23/2022]
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Rossi F, Botticelli D, Cesaretti G, De Santis E, Storelli S, Lang NP. Use of short implants (6 mm) in a single-tooth replacement: a 5-year follow-up prospective randomized controlled multicenter clinical study. Clin Oral Implants Res 2015; 27:458-64. [DOI: 10.1111/clr.12564] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Fabio Rossi
- Department of Biomedical and Neuromotor Sciences; University of Bologna; Bologna Italy
| | | | | | | | - Stefano Storelli
- Unit of Implantology and Prosthodontics; Department of Health Sciences; Dental Clinic; San Paolo Hospital; University of Milan; Milan Italy
| | - Niklaus P. Lang
- Center for Dental Medicine; University of Zurich; Zurich Switzerland
- University of Bern; Bern Switzerland
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20
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Barone A, Ricci M, Romanos GE, Tonelli P, Alfonsi F, Covani U. Buccal bone deficiency in fresh extraction sockets: a prospective single cohort study. Clin Oral Implants Res 2014; 26:823-30. [PMID: 24684275 DOI: 10.1111/clr.12369] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The purpose of this prospective single cohort study was to evaluate the use of xenograft and collagen membranes in treating full or partial buccal bone defects of fresh extraction sockets in the esthetic zone. MATERIALS AND METHODS Thirty-three patients requiring tooth extraction in the anterior maxillary area and showing a complete or partial buccal bone plate deficiency (more than 2 mm) were consecutively enrolled and treated. Corticocancellous porcine bone and platelet-rich fibrin (PRF) with a collagen membrane were used to graft the extraction sockets, and the membranes were left exposed to the oral cavity with a secondary soft tissue healing. The outcome variables were as follows: width of keratinized mucosa, facial soft tissue levels, clinical bone changes (measured with a clinical splint), implant and prosthesis failures, and peri-implant marginal bone changes. RESULTS All treated sites allowed the placement of implants; the width of keratinized mucosa at the mid-facial aspect showed an increase of 2.3 mm 5 months after the grafting procedure, and its value was 3.2 ± 0.6 mm at 1-year follow-up. The mean values of the facial soft tissue level indicated an increase over time. The bone level showed an improvement of 0.8 ± 0.1 mm and 0.7 ± 0.1 mm at mesial and distal sites, respectively, when compared to the baseline measurements. Finally, in the palatal area, no bone changes were observed. No implant failed during the entire observation period. CONCLUSIONS Findings from this study showed that xenograft and PRF, used for ridge preservation of the extraction sockets with buccal bone plate dehiscence in the esthetic zone, can be considered effective in repairing bone defects before implant placement. The secondary soft tissue healing over the grafted sockets did not compromise bone formation; moreover, the soft tissue level and the width of keratinized gingiva showed a significant improvement over time.
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Affiliation(s)
- Antonio Barone
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Massimiliano Ricci
- Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, Italy
| | | | - Paolo Tonelli
- Department of Dentistry, University of Florence, Florence, Italy
| | - Fortunato Alfonsi
- Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, Italy
| | - Ugo Covani
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy.,Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, Italy
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Pjetursson BE, Thoma D, Jung R, Zwahlen M, Zembic A. A systematic review of the survival and complication rates of implant-supported fixed dental prostheses (FDPs) after a mean observation period of at least 5 years. Clin Oral Implants Res 2013; 23 Suppl 6:22-38. [PMID: 23062125 DOI: 10.1111/j.1600-0501.2012.02546.x] [Citation(s) in RCA: 528] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The objective of this systematic review was to assess the 5- and 10-year survival of implant-supported fixed dental prostheses (FDPs) and to describe the incidence of biological and technical complications. METHODS An electronic Medline search complemented by manual searching was conducted to identify prospective and retrospective cohort studies and case series on FDPs with a mean follow-up time of at least 5 years. Patients had to have been examined clinically at the follow-up visit. Failure and complication rates were analyzed using standard and random-effects Poisson regression models to obtain summary estimates of 5-year and 10-year survival and complication rates. RESULTS The updated search provided 979 titles and 257 abstracts. Full-text analysis was performed for 90 articles resulting in a total 32 studies that met the inclusion criteria. Meta-analysis of these studies indicated an estimated survival of implants supporting FDPs of 95.6% after 5 years and 93.1% after 10 years. When machined surface implants were excluded from the analysis and only rough surface implants included, the survival rate increased to 97.2% after 5 years. The survival rate of implant-supported FDPs was 95.4% after 5 years and 80.1% after 10 years of function. When the analysis was done exclusively for metal-ceramic FDPs, hence the old gold-acrylic FDPs were excluded, the survival rate increased significantly. The survival rate of metal-ceramic implant-supported FDPs was 96.4% after 5 years and 93.9% after 10 years. Only 66.4% of the patients were free of any complications after 5 years. The most frequent complications over the 5-year observation period were fractures of the veneering material (13.5%), peri-implantitis and soft tissue complications (8.5%), loss of access hole restoration (5.4%), abutment or screw loosening (5.3%), and loss of retention of cemented FDPs (4.7%). CONCLUSION It may be concluded that implant-supported fixed dental prostheses (FDPs) are a safe and predictable treatment method with high survival rates. However, biological and technical complications were frequent (33.6%). To minimize the incidence of complications, dental professionals should make great effort in choosing reliable components and materials for implant-supported FDPs and the patients should be placed in well-structured maintenance system after treatment.
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Mezzomo LA, Miller R, Triches D, Alonso F, Shinkai RSA. Meta-analysis of single crowns supported by short (<10 mm) implants in the posterior region. J Clin Periodontol 2013; 41:191-213. [DOI: 10.1111/jcpe.12180] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Luis André Mezzomo
- Department of Prosthodontics; Post-Graduate Program in Dentistry; Pontifical Catholic University of Rio Grande do Sul; Porto Alegre Brazil
| | - Rodrigo Miller
- Department of Prosthodontics; Post-Graduate Program in Dentistry; Pontifical Catholic University of Rio Grande do Sul; Porto Alegre Brazil
| | - Diego Triches
- Department of Prosthodontics; Post-Graduate Program in Dentistry; Pontifical Catholic University of Rio Grande do Sul; Porto Alegre Brazil
| | - Fernando Alonso
- Department of Prosthodontics; Post-Graduate Program in Dentistry; Pontifical Catholic University of Rio Grande do Sul; Porto Alegre Brazil
| | - Rosemary Sadami A. Shinkai
- Department of Prosthodontics; Post-Graduate Program in Dentistry; Pontifical Catholic University of Rio Grande do Sul; Porto Alegre Brazil
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Dede DÖ, Armaganci A, Ceylan G, Cankaya S, Celik E. Influence of abutment material and luting cements color on the final color of all ceramics. Acta Odontol Scand 2013; 71:1570-8. [PMID: 23627846 DOI: 10.3109/00016357.2013.777114] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE The purpose of this study is to evaluate the effects of different abutment materials and luting cements color on the final color of implant-supported all-ceramic restorations. MATERIALS AND METHODS Ten A2 shade IPS e.max Press disc shape all-ceramic specimens were prepared (11 × 1.5 mm). Three different shades (translucent, universal and white opaque) of disc shape luting cement specimens were prepared (11 × 0.2 mm). Three different (zirconium, gold-palladium and titanium) implant abutments and one composite resin disc shape background specimen were prepared at 11 mm diameter and appropriate thicknesses. All ceramic specimens colors were measured with each background and luting cement samples on a teflon mold. A digital spectrophotometer used for measurements and data recorded as CIE L*a*b* color co-ordinates. An optical fluid applied on to the samples to provide a good optical connection and measurements on the composite resin background was saved as the control group. ΔE values were calculated from the ΔL, Δa and Δb values between control and test groups and data were analyzed with one-way variance analysis (ANOVA) and mean values were compared by the Tukey HSD test (α = 0.05). RESULTS One-way ANOVA of ΔL, Δa, Δb and ΔE values of control and test groups revealed significant differences for backgrounds and seldom for cement color groups (p the 0.05). Only zirconium implant abutment groups and gold palladium abutment with universal shade cement group were found to be clinically acceptable (ΔE ≤ 3.0). CONCLUSION Using titanium or gold-palladium abutments for implant supported all ceramics will be esthetically questionable and white opaque cement will be helpful to mask the dark color of titanium abutment.
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Affiliation(s)
- Dogu Ömür Dede
- Department of Prosthodontics, Faculty of Dentistry, Bülent Ecevit University , Zonguldak , Turkey
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24
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Baggi L, Pastore S, Di Girolamo M, Vairo G. Implant-bone load transfer mechanisms in complete-arch prostheses supported by four implants: a three-dimensional finite element approach. J Prosthet Dent 2013; 109:9-21. [PMID: 23328192 DOI: 10.1016/s0022-3913(13)60004-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
STATEMENT OF PROBLEM Complete-arch restorations supported by fewer than 5 dental implants can induce unbalanced load transfer and tissue overloading, leading to excessive bone resorption and possible clinical failure. This is primarily affected by the cantilever length, the implant design and positioning, and the morphology and properties of the bone. PURPOSE The purpose of this study was to compare 2 different restorative techniques for complete-arch rehabilitations supported by 4 implants. The primary purpose was to highlight the possible risks of excessive stress and unbalanced load transfer mechanisms and to identify the main biomechanical factors affecting loading transmission. MATERIAL AND METHODS Three-dimensional (3D) numerical models of edentulous maxillae and mandibles restored with 2 techniques using 4 implants were generated from computed tomography (CT) images and analyzed with linear elastic finite-element simulations with 3 different static loads. The first technique used 2 vertical mesial implants and 2 tilted distal implants (at a 30 degree angle), and the second used vertical implants that fulfilled platform switching concepts. Bone-muscle interactions and temporomandibular joints were included in the mandibular model. Complete implant osseous integration was assumed and different posthealing crestal bone geometries were modeled. Stress measures (revealing risks of tissue overloading) and a performance index (highlighting the main features of the loading partition mechanisms) were introduced and computed to compare the 2 techniques. RESULTS Dissimilar load transfer mechanisms of the 2 restorative approaches when applied in mandibular and maxillary models were modeled. Prostheses supported by distally tilted implants exhibited a more effective and uniform loading partition than all vertical implants, except in the simulated maxilla under a frontal load. Tilted distal implants reduced compressive states at distal bone-implant interfaces but, depending on bone morphology and loading type, could induce high tensile stresses at distal crests. Overloading risks on mesial periimplant bone decreased when the efficient preservation of the crestal bone through platform switching strategies was modeled. CONCLUSIONS Numerical simulations highlighted that the cantilever length, the implant design and positioning, and the bone's mechanical properties and morphology can affect both load transmission mechanisms and bone overloading risks in complete-arch restorations supported by 4 implants. Distally tilted implants induced better loading transmission than vertical implants, although the levels of computed stress were physiologically acceptable in both situations.
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Affiliation(s)
- Luigi Baggi
- INMP Department of Social Dentistry and Gnathological Rehabilitation, University of Rome Tor Vergata, Rome, Italy.
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25
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Malchiodi L, Cucchi A, Ghensi P, Consonni D, Nocini PF. Influence of crown-implant ratio on implant success rates and crestal bone levels: a 36-month follow-up prospective study. Clin Oral Implants Res 2013; 25:240-51. [DOI: 10.1111/clr.12105] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2012] [Indexed: 11/30/2022]
Affiliation(s)
| | - Alessandro Cucchi
- Department of Biomedical and Neuromotorial Science; University of Bologna; Bologna Italy
| | - Paolo Ghensi
- Department of Oral and Maxillofacial Surgery; University of Milan; Milan Italy
| | - Dario Consonni
- Epidemiology Unit, IRCCS Fundation Ca' Granda Ospedale Maggiore Policlinico; Milan Italy
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High Bone-Implant Contact Achieved by Photofunctionalization to Reduce Periimplant Stress. IMPLANT DENT 2013; 22:102-8. [DOI: 10.1097/id.0b013e31827b9415] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Noda K, Arakawa H, Maekawa K, Hara ES, Yamazaki S, Kimura-Ono A, Sonoyama W, Minakuchi H, Matsuka Y, Kuboki T. Identification of risk factors for fracture of veneering materials and screw loosening of implant-supported fixed partial dentures in partially edentulous cases. J Oral Rehabil 2013; 40:214-20. [DOI: 10.1111/joor.12029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2012] [Indexed: 11/29/2022]
Affiliation(s)
- K. Noda
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - H. Arakawa
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - K. Maekawa
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - E. S. Hara
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - S. Yamazaki
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - A. Kimura-Ono
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - W. Sonoyama
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - H. Minakuchi
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - Y. Matsuka
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - T. Kuboki
- Oral Rehabilitation and Regenerative Medicine; Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
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Kuramochi G, Fuentes P, Rosemberg R, Díaz V, Palacios L. Tasa de supervivencia de implantes cortos y largos en población chilena. JOURNAL OF ORAL RESEARCH 2012. [DOI: 10.17126/joralres.2012.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Mingardi M, Fumagalli T, Cambini A, Giacomello M, Caccianiga G. Management Missing Later Incisor in Monozygotic Twins: Two Case Reports. EUR J INFLAMM 2012. [DOI: 10.1177/1721727x120100s212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Tooth loss of anterior region is the result of congenital anomaly or of a traumatic event. Maxillary lateral incisor is very important in masticatory function because permit lateral protrusion movement of mandible and is a key point in aesthetic of smile. Tooth agenesis is one of the most common developmental anomalies in man and it often is a feature of syndromes. Tooth developmental results by interactions of genetic and environmental factors, in particular mutations in MSX1, PAX9 contribute tooth agenesis, but also radiotherapy, chemotherapy, maternal systemic diseases aid genetic aberrations. Upper lateral incisor is in a unfavorable anatomical position because it's in fusion area of facial processes for this it's the most common tooth loss in oral cleft. The management of these patients is complex and it includes an orthodontic, prosthetic and surgical analysis This report addresses the fundamental considerations related to replacement of congenitally missing lateral incisors by a team approach.
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Affiliation(s)
- M. Mingardi
- University of Mllano-Bicocca, Department of Neurosciences, Dental Clinic, Milano, Italy
| | - T. Fumagalli
- University of Mllano-Bicocca, Department of Neurosciences, Dental Clinic, Milano, Italy
| | - A. Cambini
- University of Mllano-Bicocca, Department of Neurosciences, Dental Clinic, Milano, Italy
| | - M.S. Giacomello
- University of Mllano-Bicocca, Department of Neurosciences, Dental Clinic, Milano, Italy
| | - G. Caccianiga
- University of Mllano-Bicocca, Department of Neurosciences, Dental Clinic, Milano, Italy
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de Avila ÉD, de Molon RS, de Assis Mollo F, de Barros LAB, Capelozza Filho L, de Almeida Cardoso M, Cirelli JA. Multidisciplinary approach for the aesthetic treatment of maxillary lateral incisors agenesis: thinking about implants? Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 114:e22-8. [PMID: 23083483 DOI: 10.1016/j.oooo.2011.09.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Accepted: 09/12/2011] [Indexed: 11/25/2022]
Abstract
Missing maxillary lateral incisors create an esthetic problem with specific orthodontic and prosthetic considerations. Implants are commonly used to replace congenitally missing lateral incisors in adolescent orthodontic patients. However, an interdisciplinary approach should be observed during the diagnosis, prognosis, and treatment plan to provide a result with good predictability and meet the esthetic and functional expectations of the patient. The present study describes a case of a young patient with tooth agenesis of maxillary lateral incisors, which was conducted with an integrated planning. After 5-year follow-up of 2 fixed implant-supported prostheses, clinical and radiographic examination showed the treatment to be successful.
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Affiliation(s)
- Érica Dorigatti de Avila
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University, Araraquara, Brazil.
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Lai HC, Si MS, Zhuang LF, Shen H, Liu YL, Wismeijer D. Long-term outcomes of short dental implants supporting single crowns in posterior region: a clinical retrospective study of 5-10 years. Clin Oral Implants Res 2012; 24:230-7. [DOI: 10.1111/j.1600-0501.2012.02452.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Hong-Chang Lai
- Department of Oral and Maxillo-facial Implantology; Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University; Shanghai; China
| | - Mi-Si Si
- Department of Oral and Maxillo-facial Implantology; Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University; Shanghai; China
| | - Long-Fei Zhuang
- Faculty of Dentistry; the University of Hong Kong; Hong Kong; China
| | - Hui Shen
- Arrail Dental Clinic; Shanghai; China
| | - Yue-lian Liu
- Oral Function and Restorative Dentistry; Section Oral Implantology and Prosthetic Dentistry; LA Amsterdam; The Netherlands
| | - Daniel Wismeijer
- Oral Function and Restorative Dentistry; Section Oral Implantology and Prosthetic Dentistry; LA Amsterdam; The Netherlands
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Patras M, Martin W, Sykaras N. A novel surgical template design in staged dental implant rehabilitations. EJOURNAL OF ORAL MAXILLOFACIAL RESEARCH 2012; 3:e5. [PMID: 24422012 PMCID: PMC3886099 DOI: 10.5037/jomr.2012.3205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 05/22/2012] [Indexed: 11/17/2022]
Abstract
Background The philosophy of a gradual transition to an implant retained prosthesis in
cases of full-mouth or extensive rehabilitation usually involves a staged
treatment concept. In this therapeutic approach, the placement of implants
may sometimes be divided into phases. During a subsequent surgical phase of
treatment, the pre-existing implants can serve as anchors for the surgical
template. Those modified surgical templates help in the precise transferring
of restorative information into the surgical field and guide the optimal
three-dimensional implant positioning. Methods This article highlights the rationale of implant-retained surgical templates
and illustrates them through the presentation of two clinical cases. The
templates are duplicates of the provisional restorations and are secured to
the existing implants through the utilization of implant mounts. Results This template design in such staged procedures provided stability in the
surgical field and enhanced the accuracy in implant positioning based upon
the planned restoration, thus ensuring predictable treatment outcomes. Conclusions Successful rehabilitation lies in the correct sequence of surgical and
prosthetic procedures. Whenever a staged approach of implant placement is
planned, the clinician can effectively use the initially placed implants as
anchors for the surgical template during the second phase of implant
surgery.
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Affiliation(s)
- Michael Patras
- Department of Oral and Maxillofacial Surgery, Center for Implant Dentistry, University of Florida Gainesville, Florida USA
| | - William Martin
- Department of Oral and Maxillofacial Surgery, Center for Implant Dentistry, University of Florida Gainesville, Florida USA
| | - Nikitas Sykaras
- Department of Prosthodontics, University of Athens Athens Greece
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Elian N, Bloom M, Dard M, Cho SC, Trushkowsky RD, Tarnow D. Effect of Interimplant Distance (2 and 3 mm) on the Height of Interimplant Bone Crest: A Histomorphometric Evaluation. J Periodontol 2011; 82:1749-56. [DOI: 10.1902/jop.2011.100661] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Pommer B, Frantal S, Willer J, Posch M, Watzek G, Tepper G. Impact of dental implant length on early failure rates: a meta-analysis of observational studies. J Clin Periodontol 2011; 38:856-63. [PMID: 21722154 DOI: 10.1111/j.1600-051x.2011.01750.x] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AIM To test the null hypothesis of no difference in failure rates of short (minimum length: 7 mm) and longer dental implants (≥ 10 mm), a meta-analysis was performed on prospective observational trials. MATERIALS AND METHODS A systematic electronic and hand search was performed to identify eligible studies. Having additional data supplied by the authors, 54 publications were included (19,083 implants). RESULTS In case of mandibular implants, the null hypothesis of no impact of reduced implant length on failure within the first year of prosthetic loading could not be rejected. A significant impact of implant length could be substantiated for short machined implants in the anterior [odds ratio (OR) 5.4] and posterior maxilla (OR 3.4), while short rough-surfaced implants demonstrated increased failure rates in the anterior maxillary sites. No influence of implant diameter and denture type on the failure rate of short implants could be revealed. CONCLUSION In areas of reduced alveolar bone height the use of short dental implants may reduce the need for invasive bone augmentation procedures.
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Affiliation(s)
- Bernhard Pommer
- Department of Oral Surgery, Bernhard Gottlieb School of Dentistry, Medical University of Vienna, Vienna, Austria.
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Kokich VO, Kinzer GA, Janakievski J. Congenitally missing maxillary lateral incisors: restorative replacement. Counterpoint. Am J Orthod Dentofacial Orthop 2011; 139:435, 437, 439 passim. [PMID: 21457854 DOI: 10.1016/j.ajodo.2011.02.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Vincent O Kokich
- Department of Orthodontics, University of Washington, Seattle, WA, USA.
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37
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Krassnig M, Fickl S. Congenitally missing lateral incisors--a comparison between restorative, implant, and orthodontic approaches. Dent Clin North Am 2011; 55:283-99, viii. [PMID: 21473994 DOI: 10.1016/j.cden.2011.01.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Tooth agenesis is one of the most common developmental dental anomalies. Successful and satisfying dental treatment is always the goal for patients and dental practitioners, meaning that a patient's needs are solved in a functional and esthetic way. Patients and dentists have to find the best way to reach their common goal of satisfaction. The authors introduce and provide examples of different approaches to solve the problem of congenitally missing lateral incisors. This article discusses the restorative approach, the approach using implants, and the orthodontic approach. In most cases, an interdisciplinary treatment plan has to be worked out and executed.
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Affiliation(s)
- Matthias Krassnig
- Updent Dentists Vienna, Liechtensteinstrasse 8, 1090 Vienna, Austria.
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Rossi F, Ricci E, Marchetti C, Lang NP, Botticelli D. Early loading of single crowns supported by 6-mm-long implants with a moderately rough surface: a prospective 2-year follow-up cohort study. Clin Oral Implants Res 2010; 21:937-43. [PMID: 20701620 DOI: 10.1111/j.1600-0501.2010.01942.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To evaluate prospectively the clinical and radiographic outcomes after 2 years of loading of 6 mm long moderately rough implants supporting single crowns in the posterior regions. MATERIAL AND METHODS Forty SLActive Straumann short (6 mm) implants were placed in 35 consecutively treated patients. Nineteen implants, 4.1 mm in diameter, and 21 implants, 4.8 mm in diameter, were installed. Implants were loaded after 6 weeks of healing. Implant survival rate, marginal bone loss and resonance frequency analysis (RFA) were evaluated at different intervals. The clinical crown/implant ratio was also calculated. RESULTS Two out of 40 implants were lost before loading. Hence, the survival rate before loading was 95%. No further technical or biological complications were encountered during the 2-year follow-up. The mean marginal bone loss before loading was 0.34+/-0.38 mm. After loading, the mean marginal bone loss was 0.23+/-0.33 and 0.21+/-0.39 mm at the 1- and 2-year follow-ups. The RFA values increased between insertion (70.2+/-9) and the 6-week evaluation (74.8+/-6.1). The clinical crown/implant ratio increased with time from 1.5 at the delivery of the prosthesis to 1.8 after 2 years of loading. CONCLUSION Short implants (6 mm) with a moderately rough surface loaded early (after 6 weeks) during healing yielded high implant survival rates and moderate loss of bone after 2 years of loading. Longer observation periods are needed to draw more definite conclusions on the reliability of short implants supporting single crowns.
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Affiliation(s)
- Fabio Rossi
- Faculty of Dentistry of Araçatuba, UNESP - São Paulo State University, São Paulo, Brazil
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Neldam CA, Pinholt EM. State of the Art of Short Dental Implants: A Systematic Review of the Literature. Clin Implant Dent Relat Res 2010; 14:622-32. [DOI: 10.1111/j.1708-8208.2010.00303.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chung S, Rungcharassaeng K, Kan JYK, Roe P, Lozada JL. Immediate single tooth replacement with subepithelial connective tissue graft using platform switching implants: a case series. J ORAL IMPLANTOL 2010; 37:559-69. [PMID: 20883114 DOI: 10.1563/aaid-joi-d-10-00110] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This case series evaluated the facial gingival stability following single immediate tooth replacement in conjunction with subepithelial connective tissue graft (SCTG). Implant success rate and peri-implant tissue response were also reported. Ten patients (6 male, 4 female), with a mean age of 52.1 (range = 22.7 to 67.1) years, underwent immediate implant placement and provisionalization with SCTG and were evaluated clinically and radiographically at presurgery (T0), at the time of immediate tooth replacement and SCTG (T1), and 3 months (T2), 6 months (T3), and 12 months (T4) after surgery. Data were analyzed using the Friedman and Wilcoxon signed-ranks tests at the significance level of α = .05. At 1 year, 9 of 10 implants remained osseointegrated with the overall mean marginal bone change of -0.31 mm and a mean facial gingival level change of -0.05 mm. The modified plaque index scores showed that patients were able to maintain a good level of hygiene throughout the study. The papilla index score indicated that at T4, more than 50% of the papilla fill was observed in 89% of all sites. When proper 3-dimensional implant position is achieved and bone graft is placed into the implant-socket gap, favorable success rate and peri-implant tissue response of platform switching implants can be achieved following immediate tooth replacement in conjunction with subepithelial connective tissue graft.
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Affiliation(s)
- Seunghwan Chung
- Advanced Education in Implant Dentistry, Loma Linda University School of Dentistry, Loma Linda, CA, USA
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Pessoa RS, Oliveira SR, Menezes HHM, de Magalhaes D. Effects of platelet-rich plasma on healing of alveolar socket: split-mouth histological and histometric evaluation in Cebus apella monkeys. Indian J Dent Res 2010; 20:442-7. [PMID: 20139568 DOI: 10.4103/0970-9290.59448] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
CONTEXT The prediction of implant treatment is directly influenced by the quality of the remaining bone after tooth extraction. AIMS The purpose of this experimental study was to, histologically and histometrically, evaluate the bone repair process in the central areas of extraction sockets filled with platelet-rich plasma. MATERIALS AND METHODS Four young adult male Cebus apella monkeys were used. The extraction of both right and left inferior second premolars was accomplished. After extraction, in one of the extraction sockets, coagulum was maintained while in the other it was removed; the alveolus was dried with gauze compress and filled up with platelet concentrate. For PRP production, Sonnleitner's protocol was followed. The specimens for histological and histometric assessment were obtained in 30, 90, 120 and 180 days intervals. RESULTS In 30 days new bone formation was intense in both experimental and control sockets and no significant differences were observed between the two groups. After 90 days of the extraction, while the control group showed signs of decrease in osteogenesis, in the experimental unit, the process of bone formation and fibroblast-like cell proliferation remained intense. After 120 days, the PRP treated socket was occupied by large trabeculae of bone. After 180 days, the control unit was occupied mostly with bone marrow. The experimental unit remained occupied with large amounts of bone tissue. CONCLUSIONS It was possible to conclude that bone repair was enhanced by the use of platelet- rich plasma in alveolar sockets.
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Affiliation(s)
- Roberto S Pessoa
- Department of Periodontology, Faculty of Odontology, Federal University of Uberlândia, Brazil
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Roccuzzo M, De Angelis N, Bonino L, Aglietta M. Ten-year results of a three-arm prospective cohort study on implants in periodontally compromised patients. Part 1: implant loss and radiographic bone loss. Clin Oral Implants Res 2010; 21:490-6. [DOI: 10.1111/j.1600-0501.2009.01886.x] [Citation(s) in RCA: 153] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Nontraumatic Bone Expansion for Immediate Dental Implant Placement: An Analysis of 21 Cases. IMPLANT DENT 2010; 19:92-7. [DOI: 10.1097/id.0b013e3181d46f46] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Koutrach M, Nimmo A. Preservation of Existing Soft-Tissue Contours in the Transition from a Tooth to an Implant Restoration in the Esthetic Zone Using a Flapless Approach: A Clinical Report. J Prosthodont 2010; 19:391-6. [DOI: 10.1111/j.1532-849x.2010.00581.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Irinakis T, Wiebe C. Clinical evaluation of the NobelActive implant system: a case series of 107 consecutively placed implants and a review of the implant features. J ORAL IMPLANTOL 2010; 35:283-8. [PMID: 20017644 DOI: 10.1563/1548-1336-35.6.283] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The purpose of this paper is to (1) introduce the features of this new implant, (2) investigate the clinical benefits as advertised by the manufacturer in comparison with traditional root form implants, and (3) provide guidelines for its use. One hundred seven NobelActive implants were placed in 67 consecutive patients with type I-IV bone within 8 months. Cases also include implants placed in sinus grafts, ridges with insufficient thickness and facial bone loss and were placed with delayed and immediate loading. Parameters were assessed to determine whether we could confirm the manufacturer's statements on this implant system. Results obtained with 107 implants of 3.5, 4.3, and 5 mm diameters with 10- to 15-mm lengths placed in different types of bone with delayed and immediate loading demonstrated a final insertion torque from 15 to 70 Ncm. All types of bone allowed "redirection" of the implant but were limited in the bone with higher density. According to the manufacturer, this new design of the NobelActive implant has high initial stability, bone condensing properties, redirecting capability, built-in platform shifting, and dual-function prosthetic connections. After investigating these 5 statements within the limits of our study, we were able to confirm these claims, but with some recommendations for the clinical use and placement of these implants.
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46
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Wilcox CW, Sheets JL, Nilsson DE. Predoctoral Implant Education: The Creighton Experience at 20 Years. J Prosthodont 2010; 19:144-9. [DOI: 10.1111/j.1532-849x.2009.00548.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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47
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Irinakis T, Wiebe C. Initial Torque Stability of a New Bone Condensing Dental Implant. A Cohort Study of 140 Consecutively Placed Implants. J ORAL IMPLANTOL 2009; 35:277-82. [DOI: 10.1563/aaid-joi-d-09-00020.1] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract
The aim of this paper was to determine the torque resistance of this new implant during placement in different types of bone, immediate placement into sockets, and in grafted bone. The torque at time of placement serves as an indication of initial stability, which is accepted as an important factor for implant osseointegration and immediate loading. Within a 13-month period, 140 NobelActive implants in 84 consecutive patients were placed into types I–IV bone in fresh sockets, and into grafted bone (both in maxillary sinuses and on the facial alveolar surfaces where bone had been lost). The final torque was measured with a manual torque control wrench as manufactured by Nobel Biocare for clinical use with this type of implant. One hundred forty implants with 3.5 to 5 mm diameters and 10 to 15 mm lengths were placed in different types of bone, either as delayed or immediate implants into fresh extraction sockets. These implants demonstrated a mean torque stability value of 50.8 Ncm. The average insertion torque for delayed implants was 49.7 Ncm. For immediate implants the average torque was 52.6 Ncm. Placement into soft bone was also favorable at an average of 47.9 Ncm. Typical straight walled and tapered implants generally exhibit 10 to 35 Ncm insertion torques. The NobelActive implant consistently reaches higher torque levels. This may indicate they are more favorably suited to early provisionalization and loading. Soft bone (type IV) did not seem to decrease significantly the torque of insertion of these implants. Further longer term studies are needed to investigate whether this indeed makes these implants more suited for early provisionalization and loading than traditional root form. Long term studies are also needed to investigate maintenance of bone levels surrounding these implants.
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48
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Kan JYK, Rungcharassaeng K, Morimoto T, Lozada J. Facial gingival tissue stability after connective tissue graft with single immediate tooth replacement in the esthetic zone: consecutive case report. J Oral Maxillofac Surg 2009; 67:40-8. [PMID: 19835749 DOI: 10.1016/j.joms.2009.07.004] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Accepted: 07/22/2009] [Indexed: 11/29/2022]
Abstract
PURPOSE The present consecutive case report evaluated facial gingival tissue stability after immediate tooth replacement with connective tissue grafting in the esthetic zone. The implant success rate and peri-implant tissue response were also recorded. PATIENTS AND METHODS A total of 20 consecutive patients with a mean age of 52.3 years (range 28 to 71), who had undergone 20 single immediate tooth replacement with connective tissue grafting, were evaluated clinically and radiographically at the preoperative examination, immediately after implant placement and provisionalization with connective tissue grafting, and at the latest follow-up appointment. The data were analyzed using the t test and Wilcoxon signed rank test at a significance level of alpha = .05. RESULTS At the preoperative examination, a thick gingival biotype was observed in 8 patients and a thin gingival biotype in 12. At a mean follow-up of 2.15 years (range 1 to 4), all implants were functioning and exhibited a thick biotype. At the latest follow-up appointment, no significant differences (P > .05) were found between the initially thick and thin gingival biotypes in the mean mesial marginal bone level changes (-0.53 versus -0.55 mm), the mean distal marginal bone level changes (-0.50 versus -0.44 mm), and the mean facial gingival level changes (+0.23 mm versus +0.06 mm). The frequency distribution of the papilla index score showed that peri-implant papillae were well preserved at the latest follow-up visit. CONCLUSIONS With proper 3-dimensional implant positioning and bone grafting into the implant-socket gap, the facial gingival level can be maintained after connective tissue grafting with single immediate tooth replacement, regardless of the initial gingival biotype, indicating that the thin gingival biotype can be converted to the thick gingival biotype morphologically and behaviorally with this procedure. Nevertheless, careful patient selection and treatment planning, as well as immaculate execution by skillful clinicians, are required to achieve a successful result.
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Affiliation(s)
- Joseph Y K Kan
- Department of Restorative Dentistry, Loma Linda University School of Dentistry, Loma Linda, CA 92354, USA.
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49
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Kotsovilis S, Fourmousis I, Karoussis IK, Bamia C. A Systematic Review and Meta-Analysis on the Effect of Implant Length on the Survival of Rough-Surface Dental Implants. J Periodontol 2009; 80:1700-18. [DOI: 10.1902/jop.2009.090107] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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50
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Cosyn J, De Rouck T. Aesthetic outcome of single-tooth implant restorations following early implant placement and guided bone regeneration: crown and soft tissue dimensions compared with contralateral teeth. Clin Oral Implants Res 2009; 20:1063-9. [DOI: 10.1111/j.1600-0501.2009.01746.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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