Articles en-us http://www.implantoloji.info N/A http://www.implantoloji.info www@implantoloji.info 20 http://www.implantoloji.info/articles/16/1/Experimental-Study-of-Bone-Response-to-a-New-Surface-Treatment-of-Endosseous-Titanium-Implants/Page1.html Antonio Sanz R., DDSPeriodontist, Adjunct Professor in Oral Implantology, and Director of the Postgrade in Oral Implantology, Odontology Faculty, University of Chile, Santiago, Chile.Alejandro Oyarzun, DDSBiochemical and Oral Biology Unit, Odontology Faculty, University of Chile, Santiago, Chile.Daniel Farias, DDS, Ivan Diaz, DDSSpecialist in oral implantology, Odontology Faculty, Postgraduate School, University of Chile, Santiago, Chile.This experimental research shows the biocompatibility of Restore RBM implants (Lifecore Biomedical) at the light microscopy level. It leads to the proposal that a new process be used to create a textured surface. Knowledge about the clinical benefits of the roughness of titanium root-form surfaces is expanding. Future mechanical trials are needed to support the hypothesis that the strength of the interface between bone and implant is improved. www@implantoloji.info (JDI editor) Mon, 29 Sep 2008 00:00:00 -0500 http://www.implantoloji.info/articles/15/1/Treatment-Of-A-Microvascular-Reconstructed-Mandible-Using-An-Implant-Supported-Fixed-Partial-Denture/Page1.html Mehmet Dalkiz, DDS, PhD, Bedri Beydemir, DDS, PhD, Yilmaz Gunaydin, DDS, PhD.Department of Prosthetic Dentistry, Gulhane Military Medical Academy, Ankara, Turkey.Department of Oral and Maxillofacial Surgery, Gulhane Military Medical Academy, Ankara, Turkey.Oral rehabilitation of patients with mandibular discontinuity defects is a problem that faces both the oral surgeon and the restorative dentist. Advances in microvascular surgery can provide the mandible with vital bone grafts. Often, reconstruction of the bony defect alone does not guarantee an adequate foundation for successful conventional prosthetic rehabilitation. Osseointegrated implants placed in the microvascularized grafted bone offer an opportunity for improved function and patient satisfaction. This case report describes the use of an implant supported bridge in a vascularized fibular bone graft to reconstruct a traumatic partially resected mandible. www@implantoloji.info (JDI editor) Sun, 07 Sep 2008 00:00:00 -0500 http://www.implantoloji.info/articles/14/1/Provisional-Implants-Surgical-and-Prosthetic-Aspects/Page1.html Charles A. Babbush, DDS, MScDDirector, The Dental Implant Center, Lyndhurst, Ohio.Director, Dental Implant Research, and Clinical Professor, Case Western Reserve University, School of Dentistry, Cleveland, Ohio. Although numerous technological advances have improved the ability of implant practitioners to successfully reconstruct dental implants, providing patients with teeth during the immediate postsurgical period has remained problematic. One solution has been the development of temporary implants. Such provisional implants eliminate the need for a tissue-borne prosthesis that may interfere with the healing of the submerged conventional implants and/or grafting material. This article describes the methodology for placing immediate provisional implants. Three alternative approaches to fabrication of the temporary prosthesis are discussed, and the results of 12 cases are reviewed. www@implantoloji.info (JDI editor) Sun, 11 Feb 2001 00:00:00 -0600 http://www.implantoloji.info/articles/13/1/Ridge-Widening-and-Immediate-Implant-Placement/Page1.html Tetsuo Shimoyama, DDS, PhD, Takahiro Kaneko, DDS, Shinjirou Shimizu, DDS, Daigo Kasai, DDS, Takahiro Tojo, DDS, Norio Horie, DDS, PhDDepartment of Oral and Maxillofacial Surgery, Saitama Medical Center, Medical School, Saitama, Japan.Alveolar atrophy may present an anatomical limitation to the placement of endosseous implants. A case is described of severe maxillary alveolar atrophy with immediate implant placement associated with a ridge widening technique in accordance with a split-crest-bone manipulation. Taper-shaped implants were applied in this technique without a barrier membrane. Because this implant was small and tapped into position, it was easier to use and was considered to be appropriate for the ridge widening technique associated with immediate implant placement. www@implantoloji.info (JDI editor) Sat, 10 Feb 2001 00:00:00 -0600 http://www.implantoloji.info/articles/12/1/Inadequate-Implant-Angulation-Resulting-From-Oroantral-Fistula/Page1.html Su-Gwan Kim, DDS, PhDAssistant Professor, Department of Oral and Maxillofacial Surgery, College of Dentistry, Chosun University, Kwang-Ju, Korea.Successful implant surgery is largely dependent on good treatment planning and careful surgery. A complete treatment plan must encompass both surgical and prosthetic considerations for the implant restoration. Some compromised implants are restorable, and the result can be acceptable if they can be adjusted into a more ideal position. The goals of the segmental osteotomy are the preservation of a healthy dental unit, the creation of a more ideal environment for dental restoration and occlusal reconstruction, the optimization of cost effectiveness, and the minimization of edentulous space. The purpose of this study is to present the segmental maxillary osteotomy to reposition the alveolar segment with its implant that was in a highly compromised situation. www@implantoloji.info (JDI editor) Thu, 08 Feb 2001 00:00:00 -0600 http://www.implantoloji.info/articles/11/1/Replacement-Therapy-and-the-Immediate-Post-Extraction-Dental-Implant/Page1.html Luc W. J. Huys, LTH, BDS, DDS, DSc, IOMPrivate practice, Brugge, Belgium.Oral Implantology and Dento-Alveolar Surgery, Hospital Queen Fabiola, Blankenberge, Belgium. Immediate postextraction implant placement often deals with two major problems: maintaining the initial stability of the implant(s) and preventing soft tissue ingrowth during the healing period. Both problems may lead to the loss of the implant(s). The objective of this clinical study was to evaluate the effectiveness, reliability, and placement of single-stage implants in extraction sockets in combination with a synthetic bone substitute. Hopeless teeth were extracted and one-stage cylindrical screw implants, hollow and solid, were inserted together with a composite polymer without using a membrane. Rehabilitation was performed three to six months postoperatively by placement of different types of prostheses. Excellent initial results were confirmed by the follow-up of 7 to 10 years. The hollow screw-type showed a higher failure rate when compared with the solid screw-type. One-stage implant osseointegration in extraction sockets is enhanced if used with this synthetic graft material, and the simplicity of the method does not jeopardize outcome and predictability. It provides the patient with the benefits of implantsupported restorations in a simple, quick, cost-effective, and secure manner. www@implantoloji.info (JDI editor) Tue, 06 Feb 2001 00:00:00 -0600 http://www.implantoloji.info/articles/10/1/The-Significance-Of-Passive-Framework-Fit-In-Implant-Prosthodontics-Current-Status/Page1.html Saime Sahin, DDS, PhD, Murat C. Cehreli, DDS, PhDProfessor, Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey.Research Assistant, Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey.Absolute passive framework fit has not been achieved in the last three decades. There is no consensus but rather a number of suggestions regarding the acceptable level of misfit. In light of current knowledge, although there are claims that passive fit is a governing factor over the maintenance of osseointegration and implant success, there is a rising opposing trend in relevant literature. The materials and the techniques used for fabricating cast-frameworks are not dimensionally accurate and require further research and development. Obtaining a passive fit does not seem to be possible and may in fact be unnecessary. www@implantoloji.info (JDI editor) Fri, 02 Feb 2001 00:00:00 -0600 http://www.implantoloji.info/articles/9/1/Survey-of-Clinical-Members-of-the-Association-of-Dental-Implantology-in-the-United-Kingdom/Page1.html M.P. J. Young, BDS, D.H. Carter, BSc, MPhil, PhD, P. Sloan, BDS, PhD, FRCPath, FDS RCS (Eng), A.A. Quayle, LDS, FDSRCS (Eng), PhDUnits of Oral Surgery and Oral Pathology, Turner Dental School and Hospital, University of Manchester, United Kingdom. The aims of this survey were todetermine recruitment rates of active oral implantologists, establish the proportion of participants who carry out the surgical aspects of implantology, quantify levels of surgical activity, determine the type of qualifications held by this sample, and identify the location of implant activity of clinical members of the Association of Dental Implantology (UK). Questionnaires were mailed to the 408 members of the ADI registered as clinical members of the ADI; data were collected between July 1998 and May 1999. A response rate of 66.9% was achieved. Active members increased markedly from 1985 to 1995. Surgical activity and clinical experience varied widely: 32.9% had placed 100 to 499 implants, 29.8% had inserted 1 to 49 implants, and 4.3% had inserted $2,000 implants. The total number of implants inserted by this sample could only be estimated (between 51,000 and 90,000). The majority of this sample possessed postgraduate qualifications, although only 2.6% possessed a degree in oral implantology. The data from this sample indicated that the recruitment rate to the ADI (UK) increased markedly between 1985 to 1995, after which it seems to have slowed down. Most of the respondents were involved in the surgical aspects of implantology, although the level of surgical involvement varied widely. The low incidence of postgraduate degrees in implantology might reflect the relatively limited opportunities currently available for such training in the UK. www@implantoloji.info (JDI editor) Wed, 24 Jan 2001 00:00:00 -0600 http://www.implantoloji.info/articles/8/1/An-Assessment-of-Implant-Coverage-in-Dental-Benefit-Plans/Page1.html Linda J. Thornton, DDS, MS, FACPDirector, Graduate Prosthodontics, Temple University School of Dentistry, Philadelphia, PA, USA.In the last 30 years, dental implantology has undergone widespread advances in technology and now complex, high - risk procedures are routine. Patients are becoming more vocal in their requests for this service from dentists in private practice and academic institutions. Unfortunately, although treatment modalities have improved, the cost for this service remains beyond the reach of the average patient. The purpose of this article is to assess the present status of implant coverage in dental benefit plans in the US. www@implantoloji.info (JDI editor) Sat, 20 Jan 2001 00:00:00 -0600 http://www.implantoloji.info/articles/7/1/Effects-of-a-Modified-Sandblasting-Surface-Treatment-on-Topographic-and-Chemical-Properties-of-Titanium-Surface/Page1.html Dehua Li, MD, DDS, PhD,Associate Professor, Dept. of Oral and Maxillofacial Surgery, Qindu Stomatological College, Xi’an 710032, P.R. China.Baolin Liu, MD, DDS,Professor and Chairman, Craniofacial Implant Center, Qindu Stomatological College, Xi’an 710032, P.R. China.Yong Han, PhD,Associate Professor, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, P.R. China.Kewei Xu, PhD,Professor and Dean, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, P.R. China.A modified sandblasting surface treatment (a noncoating, roughening surface modification of dental implants) has been developed that will overcome the defects of conventional coating techniques. To verify the feasibility and reliability of this method at the chemical and topographic levels, scanning electron microscopy, x-ray diffraction, and a titanium ion releasing test were used; the topography of titanium surface, the embedding of sandblasting particles, nonpollution of heteroelements, and anticorrosiveness of titanium were criteria. Results showed that the rough surface created by sandblast was rather irregular, full of sharp tips and many embedded sandblast particles, and its corrosive rate was increased. These characteristics were modified by oxalic acid attack; the contour of the rough surface became more regular and round, the embedded particles and the heteroelement pollution were thoroughly removed, and the Ti corrosive rate decreased dramatically. Oxalic acid attack modification also created numerous secondary micropores (2.0-mm diameter) on the basis of sandblasted surface macrotexture. This modified sandblasting surface treatment is feasible and reliable to apply to dental implants and does not decrease the biocompatibility of titanium. www@implantoloji.info (JDI editor) Thu, 18 Jan 2001 00:00:00 -0600