Journal of Oral Implantology

Publisher: American Academy of Implant Dentistry; American Academy of Implant Prosthodontics; AAID Research Foundation, American Academy of Implant Dentistry

Journal description

The principal aim of the Journal of Oral Implantology is directed toward bringing information of interest to scientists, clinicians, laboratory owners and technicians, manufacturers, and educators. Journal of the American Academy of Implant Dentistry.

Current impact factor: 0.98

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 0.977
2012 Impact Factor 1.148
2011 Impact Factor 1.527

Impact factor over time

Impact factor
Year

Additional details

5-year impact 0.00
Cited half-life 8.00
Immediacy index 0.14
Eigenfactor 0.00
Article influence 0.00
Website Journal of Oral Implantology website
Other titles The Journal of oral implantology, Oral implantology
ISSN 0160-6972
OCLC 3693079
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

American Academy of Implant Dentistry

  • Pre-print
    • Archiving status unclear
  • Post-print
    • Archiving status unclear
  • Conditions
    • Publisher's version/PDF cannot be used
    • Publisher last reviewed on 30/10/2014
  • Classification
    ​ white

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The specific aim of this study was to examine the relative contributions to the implant insertion torque value (ITV) by cortical and trabecular components of an in vitro bone model. Simulated bone blocks of polyurethane were used with two densities of foam (0.08 g/cc to mimic trabecular bone and 0.64 g/cc to mimic cortical bone). We have developed a new platform technology to collect data that would enable quantitative evaluation of ITV at different implant locations. Seven groups were used as modeling of varying thickness of cortical bone over a lower quality trabecular bone that have clinical significance: a solid 0.08 g/cc block, 1 mm, 2 mm and 3 mm thick 0.64 g/cc sheets with no underlayer, 1 mm, 2 mm and 3 mm thick 0.64 g/cc sheets laminated on top of a 4 cm thick 0.08 g/cc block. ITVs were recorded as a function of insertion displacement distance. Relative contributions of ITV ranged from 3% to 18% from trabecular bone and 62% to 74% from cortical bone depending on the thickness of the cortical layer. There was a synergistic effect on ITVs when an implant was inserted into 2mm and 3mm cortical layers laminated atop trabecular blocks. Finally, an implant with a reverse bevel design near the abutment showed final average torque values were 34%+ 14% less than their maximum torque values. This work provides basic quantitative information for clinicians to understand the influence of composite layers of bone in relation to mechanical torque resistances during implant insertion in order to obtain desired primary implant stability.
    Journal of Oral Implantology 06/2015; DOI:10.1563/aaid-joi-D-14-00322
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    ABSTRACT: Surface attachment is the first step in biofilm formation, and the ability of bacteria to adhere to surfaces and develop a biofilm is directly influenced by electrostatic interactions between the bacteria and the chemical composition of material surfaces. Here, we investigated the influence of physical and chemical characteristics of titanium (Ti) and zirconia (ZrO2) as implant abutment surfaces on the bacterial adhesion phase and compared the results to bovine enamel (BE) simulating a human tooth. To achieve this goal, we used two common pathogens of the oral cavity, Streptococcus mutans (S. mutans) UA140 and Porphyromonas gingivalis (P. gingivalis) 33277. To investigate the influence of material surfaces on bacterial adhesion, we studied the surface free energy (SFE) as well as the topography by atomic force microscopy, and the chemical elements composition by scanning electron microscopy (SEM) equipped with an energy dispersive X-ray spectroscope (EDX). Our results indicated a hydrophobic characteristic for all of the materials; however, the presence of polar and non-polar components could aid in understanding why greater numbers of bacteria had adhered to BE compared to the other surfaces. Our confocal microscopy data support the proposition that electrostatic interactions, indeed, affected the initial adhesion phase. Within the limitations of a laboratory study, the results revealed bacterial adhered on BE and no bacteria could be observed by confocal images on Ti and ZrO2 implant abutment surfaces.
    Journal of Oral Implantology 06/2015; DOI:10.1563/aaid-joi-D-14-00318
  • Journal of Oral Implantology 06/2015; DOI:10.1563/aaid-joi-D-14-00309
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    ABSTRACT: immediate loading of dental implants in situations where low bone density exist such as the posterior maxillary region became possible recently after the introduction of biomimetic agents. This 1-year preliminary clinical trial was carried out to clinically and radiographically evaluate immediate-loaded one-piece implants with local application of melatonin in the osteotomy site as a biomimetic material. 14 patients with missing maxillary premolars were randomized to receive 14 implants of one-piece type that were subjected to immediate loading after 2 weeks of initial placement. Group I included 7 implants with acid etched surface while group II included 7 implants with acid-etched surface combined with local application of melatonin gel at the osteotomy site. Patients were recalled for follow up at 1, 3, 6, and 12 months after loading. all implants were considered successful after 12 months of follow up.Significant difference (P <0.05) was found between both groups at 1 month of implant loading when considering the implant stability. At one and three months there were significant differences in the marginal bone level between the two groups. These results suggest that the local application of melatonin at the osteotomy site is associated with good stability and minimal bone resorption. However, more studies for longer follow up periods are required to confirm the effect of melatonin hormone on osseointegration of dental implants.
    Journal of Oral Implantology 06/2015; DOI:10.1563/aaid-joi-D-14-00277
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    ABSTRACT: PURPOSE This investigation was undertaken to determine if multithreaded implants partially coated with plasma-sprayed hydroxyapatite (HA) could be effectively loaded earlier than 3-6 months after placement. MATERIALS AND METHODS Forty-eight patients (22 men, 26 women) were enrolled in the study and received 48 implants. The population was divided into 2 groups: Group A implants (n=23) were loaded immediately on the day of surgery and Group B implants (n=19) were loaded 3 weeks after surgery. Cone Beam Computed Tomography (CBCT) scans were taken preoperatively to aid in treatment planning. Bone density was evaluated by tactile feedback during surgery. Insertion torque was recorded at time of implant placement. Resonance frequency analysis, performed on the day of surgery, at the time of loading, and at 6, 12 and 24 months, was used to record implant stability according to the unit's Implant Stability Quotient (Osstell ISQ). Standardized radiographs were taken at time of implant placement and at 6, 12 and 24 months to measure crestal bone stability. Bone level changes were measured by software (Image J, available online at: http://rsbweb.nih.gov/ij/download.html; last accessed 28 August 2014). Bone quality was judged as either type 1 (n=1), 2 (n=31), 3 (n=15), or 4 (n=1). There were no failures in the Group A (survival=100%, n=23/23) and 1 failure in Group B (survival=94.7%, n=18/19). After 2 years in function, cumulative mean radiographic bone loss was 0.75±0.50mm (maxillae: 0.92±0.49mm, n=14; mandibles: 0.67±0.49mm, n=28). No differences in bone levels were noted between implants placed in previously augmented and non-augmented sites, and there were no periodontal or soft tissue complications.CONCLUSIONS After 2 years in function, implants partially coated with plasma-sprayed and hydrothermally treated HA were clinically predictable when restored in occlusion immediately after or within 3 weeks of implant placement.
    Journal of Oral Implantology 06/2015; DOI:10.1563/aaid-joi-D-14-00283
  • Journal of Oral Implantology 05/2015; DOI:10.1563/aaid-joi-D-14-00228
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    ABSTRACT: Implant dentistry has become a common treatment alternative yet only a small percentage of patients missing teeth are receiving its benefits. Significant limitations are the small percent of practitioners placing implants due to long learning curve and the time commitment on the part of the patient. This proof of concept demonstrates clinical implant treatment requiring years of manual skill development on the part of the surgeon, restorative dentist and technician can be accomplished in 2 visits, completely digitally, without the need for conventional impressions, laboratory procedures and advanced manual skills resulting in a reduced learning curve and treatment time. The first visit consists of consultation, diagnosis, CT and optical surface scan, of the implant site to include: soft tissue, adjacent teeth, and opposing arch. This digital information is imported and interactively reconstructed in a 3-D open format implant planning software. The implant and restoration are now precisely planned into the optimal bone position and the ideal emergence profile for biologically and esthetically designed restoration. This information is then electronically forwarded to a production facility, where all the necessary models are digitally printed and the immediate crown is digitally milled. On the second visit, the patient returns for guided implant insertion and immediate restoration. As digital procedures are refined many more dental professionals will become involved in providing implant therapy earlier in their careers. This promises to result in reduced cost, making implants available to millions more patients who could benefit from them.
    Journal of Oral Implantology 05/2015; DOI:10.1563/aaid-joi-D-15-00060
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    ABSTRACT: The biologic response of bone to mechanical loading has clinical significance for several areas in dental medicine including orthodontic tooth movement, tempromandibular joint disease and endosseous dental implant osseointegration. Human orthopedic studies of failed hip implant sites have identified increased mRNA expression of several collagen-degrading matrix metalloproteinases (MMPs), while in vitro experiments have shown increases in MMP secretion after exposure to inflammatory mediators. This investigation evaluates the effects of mechanical deformation on in vitro osteoblasts by assessing changes in MMP gene expression and enzyme activity. Mouse neonatal calvarial osteoblasts were seeded onto flexible 6-well plates and subjected to continuous cyclic mechanical stretching. The expression and activity of mRNA for several MMPs (2, 3, 9, & 10) was assessed. When subjected to mechanical stress in culture, only mRNA specific for MMP-9 was significantly increased compared to non-stretched controls (P<0.005). Measurement of MMP activity by gelatin zymography demonstrated that none of the MMPs showed increased activity with stretching, however MMP-2 activity decreased. Our results suggest that, in response to stretch, MMP-2 responds rapidly by inhibiting conversion of a MMP-2 to the active form while a slower up-regulation of MMP-9 may play a role in the long-term remodeling of extracellular matrix in response to continuous mechanical loading. This study suggests that the regulation of metalloproteinases at both the mRNA and protein level are important in the response of bone to mechanical stress.
    Journal of Oral Implantology 05/2015; DOI:10.1563/aaid-joi-D-14-00199
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    ABSTRACT: The purpose of this report is to present a case of diffuse large B-cell lymphoma (DLBCL) of the peri-implant mucosa mimicking peri-implantitis. A 55-year-old male with DLBCL of the palatine tonsil and neck lymph nodes involvement presented with bleeding on probing and suppuration around lower implants, mimicking peri-implantitis.The tissue sections revealed diffuse infiltration of large atypical lymphoid cells showing CD20 positive, consistent with DLBCL. After further consultation at the Department of Otolaryngology and Hematology, relapsed DLBCL was diagnosed by biopsy of the oral cavity and neck lymph. Although symptoms reduced after treatment, further follow-up could not be achieved because the patient expired 26 months after an additional 3 months of chemotherapy. Oral lymphoma should be a diagnosis option because it can mimic various oral lesions, such as peri-implant disease. When the peri-implant lesion persists after appropriate treatment, biopsy and pathologic analysis may be beneficial for a precise differential diagnosis.
    Journal of Oral Implantology 05/2015; DOI:10.1563/aaid-joi-D-14-00211
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    ABSTRACT: Several dental procedures address implant placement in partially or totally edentulate patients. Problems associated with implantation in these patients often arise due to limited bone height or width of the mandible. In such cases, mandibular augmentation is required before implantation can take place. When anatomy dictates, an alternative method of treatment used in ridge augmentation involves a mineralized ilium block, which has demonstrated application in a variety of specialties, including orthopedics, neurosurgery, and craniomaxillofacial procedures. These block allografts have been demonstrated to support missing bone structure and remodel appropriately via normal regenerative pathways.The following case letter involves mandibular augmentation in a 25 year old male. Presenting with partial edentulism in the area of #20 to #28, with #22 and the roots of #25 and #26 remaining, a full thickness dissection, decortication of the buccal aspect of the alveolar ridge, and grafting of the atrophic area was performed using three mineralized human ilium block allografts. At 3 months, three implants were placed. At 10 months, the implanted sites showed good healing and a core was taken for histological analysis.The presented case illustrates a good example of an available treatment option that can be readily performed by an implantologist. Utilizing mineralized human ilium block allografts, this treatment provides a predictable and stable base, even at 3 months, for implant therapy and subsequent dental restoration.
    Journal of Oral Implantology 05/2015; DOI:10.1563/aaid-joi-D-15-00023
  • Journal of Oral Implantology 04/2015; 41(2):124. DOI:10.1563/AAID-JOI-D-4102.Letter
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    ABSTRACT: Dissolution of titanium wear particles in the oral environment and their accumulation in the surrounding tissues have been associated with failed dental implants (DI). The goal of this study is to investigate the effect of mechanical forces involved in surgical insertion and removal of DI on surface wear and particle generation. It was hypothesized that mechanical factors associated with implant placement can lead to the generation of titanium particles in the oral environment. The testing methodology for surface evaluation employed simulated surgical insertion followed by removal of DI in different densities of simulated bone material. Torsional forces involved in the insertion and removal of DI were monitored. The surface of the simulated bone materials was inspected with optical microscopy to detect traces of metallic particles generated during the procedure. Further characterization of the composition of powders collected from osteotomy cavities was conducted with powder X-ray diffraction. The results showed that the different densities of simulated bone material affected the torsional forces associated with implant insertion . However, the mechanical factors involved with implant insertion/removal procedure did not generate wear particles as confirmed by powder x-ray experiments.
    Journal of Oral Implantology 03/2015; DOI:10.1563/aaid-joi-D-14-00230
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    ABSTRACT: A viable protocol for the reconstruction of the maxilla after cancer ablation was tested, taking into account final rehabilitation with an implant-supported fixed prosthesis, and using CAD-CAM technology. The protocol involved seven steps: surgical planning of the bony resections, CAD and rapid prototyping of cutting guides, titanium mesh, and bone plate, maxillofacial surgery, oral implant surgery, and prosthetic rehabilitation. CAD-CAM technology was used for each step, to design and prototype the surgical guides and the bone plate for the maxillofacial surgery; to make the impression of implants; and to prototype the framework of the final prosthetic rehabilitation. With respect to the maxillofacial surgery, to evaluate the margins of the bone cuts, the planes of the postoperative cuts were compared with those planned in the virtual environment. The accuracy of the rapid prototyping and intraoperative surgical positioning protocol was evaluated. With regard to implants and prosthetic rehabilitation, the framework confirmed a passive fit on implants using the Sheffield test, and occlusal and interproximal points of contact resulted clinically as projected virtually. Prosthetically Guided Maxillofacial and Implant Surgery is a viable method to reproduce the correct anatomy of the maxillary arches in relation to the prosthetic needs of rehabilitation. Moreover, the protocol presented in this paper offers some adjunctive benefits, such as time and cost saving and ideal aesthetic facial contouring.
    Journal of Oral Implantology 02/2015; DOI:10.1563/aaid-joi-D-14-00302
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    ABSTRACT: Implant supported crown restorations are one of the most commonly utilized alternatives for replacing single missing teeth in partially edentulous patients. Different clinical considerations must be made for appropriate abutment selection in which a proper design and handling of different materials enables the clinician to achieve an excellent outcome. Restoration abutments are an alternative for screw-retained restorations in which a custom abutment is designed from the final tooth wax up for a more natural esthetic result in single tooth restorations. This clinical case of a 55-year old patient treated at the University of North Carolina School of Dentistry Student Clinic is an exemplary example where the CAD/CAM Zirconia implant restoration was chosen. The patient presented with one Astra implant previously placed where there was a lack of emergence profile, insufficient interocclusal space, and implant placement in a non-ideal mesial distal position. This case explores the rational of using custom CAD/CAM Zirconia implant restorations and presents a new alternative for screw retained metal ceramic custom restoration abutments.
    Journal of Oral Implantology 02/2015; DOI:10.1563/aaid-joi-D-14-00027