1/134. Case report: complications of rehabilitation using osseointegrated implants--tardive dyskinesia. The oral rehabilitation of patients using osseointegrated dental implants is a well established treatment modality. However complications can arise during the provision of treatment. This case report describes the management of a patient exhibiting tardive dyskinesia with an implant stabilised mandibular overdenture. Complications of the treatment and their resolution are discussed. ( info) |
2/134. The profile prosthesis: an aesthetic fixed implant-supported restoration for the resorbed maxilla. This article discusses a method for the predictable fabrication of fixed detachable maxillary reconstructions that abut and precisely follow the gingival contours--regardless of implant angulation or position. The technique reorders the traditional implant protocol and delays abutment selection until the definitive tooth position has been established. In this manner, final abutment selection and framework design become a single, integrated process that results in improved aesthetics, reduced angulation difficulties, and elimination of the phonetic concerns traditionally associated with fixed maxillary prostheses. ( info) |
3/134. New ways of designing suprastructures for fixed implant-supported prostheses. The replacement of lost teeth and tooth-bearing tissues with implant-supported prostheses often forced both dentist and technician to choose removable overdentures because they were the only treatment modality possible. By means of a clinical case, this article demonstrates a new approach in framework design that not only expands the limitations of conventional ceramometal implant prostheses, but also eliminates a great number of the hazards that cause implant failure with a new type of suprastructure. The technique enables both the clinician and the technician to apply all of the esthetic possibilities of tooth-supported metal ceramic crown and bridge techniques. This technique combines screw and cementation retention without changing the original treatment protocol. A new casting technique introduced by Sonntag and a new specially developed alloy was used. Essentially, the reconstructive body has been broken down into a screw-retained soft tissue/bone-replacing part using a one-piece casting technique, and a crown-replacing part to be provisionally cemented with a large variety of new possibilities. ( info) |
4/134. Reconstruction of the severely atrophic maxilla in a young adult with periodontosis. Reconstruction of the atrophic maxilla in a young adult presents unique challenges. This article describes reconstruction in a 30-year-old patient using a two-stage procedure. Bilateral maxillary sinus augmentations with simultaneous corticocancellous grafting to the anterior maxilla and alveolar ridge were performed. Eight endosseous implant fixtures were subsequently placed into the maxilla after a five-month healing phase. Six months later the implants were uncovered, healing abutments placed and a maxillary vestibuloplasty performed. The rationale behind this treatment and a review of the literature are discussed. ( info) |
5/134. Use of crestal bone for augmentation of extremely knife-edged alveolar ridges prior to implant placement: report of 3 cases. A technique is presented for interforaminal lateral augmentation of mandibles with adequate bone height, but extremely knife-edged mandibular alveolar ridges (Class IV of Cawood and Howell's classification of residual ridges), in which the crestal portion of the knife-edged ridge is used as grafting material. Following an osteotomy and rotation of the grafts by 180 degrees, the grafts were fixed to the residual ridge below the osteotomy line by means of miniscrews. All grafts showed only mild resorption after a healing period of 3 months, and it was possible to place 4 implants in the now sufficiently wide host region. ( info) |
6/134. Treatment of a patient with severe osteoporosis and chronic polyarthritis with fixed implant-supported prosthesis: a case report. This article reports the treatment and 5-year follow-up of an 80-year-old female with a history of severe osteoporosis and chronic polyarthritis. Treatment included methotrixate disodium and acemetacin. After the last tooth was removed from the mandible, the patient was successfully treated with a fixed mandibular prosthesis supported by 6 implants placed between the mental foramina. The implants have remained osseointegrated, and peri-implant smears have been negative for bacterial colonization. Radiographic follow-up examination has revealed bone loss that is slightly greater than expected. This article focuses on the placement of implants in a patient receiving medication for chronic polyarthritis and osteoporosis. ( info) |
7/134. Fixed implant rehabilitation of the edentulous maxilla: clinical guidelines and case reports. Part I. Fixed implant reconstruction is one of the most challenging prosthetic treatment alternatives for the edentulous maxilla. Accurate diagnosis and treatment planning are essential to successful, predictable clinical results. Decisions concerning the placement of implants may have a lasting impact on the quality and prognosis of the final restoration. A series of clinical guidelines and considerations is presented with illustrative clinical treatment protocols of edentulous maxillae that vary in degrees of anatomical and prosthetic difficulty. This article addresses the fixed implant rehabilitation of edentulous maxillas with favorable anatomy and favorable arch position, favorable anatomy, and unfavorable arch position, and unfavorable anatomy and favorable arch position. ( info) |
8/134. The less than 7-mm edentulous mandible: the implant/overdenture reconstructive option. The edentulous patient with a severely atrophic mandible (less than 7 mm in height) can be successfully restored with two endosseous implants and a clip-bar overdenture, with minimal morbidity. Two of the three cases reported illustrate the long-term potential of this treatment modality. ( info) |
9/134. The efficacy of modular transitional implants placed simultaneously with implant fixtures. After the placement of implants in areas in which several teeth have been lost, both the clinician and the patient face many difficulties, particularly during healing. If no prosthesis is provided, the patient's quality of life suffers. If a removable prosthesis is provided for optimum mastication and speech, many complicated adjustments of the denture may become necessary during healing, and the possibility of osseointegration failure increases. This case report describes simultaneous placement of implant fixtures and modular transitional implants, providing occlusal function immediately after placement. The use of modular transitional implants is very effective in maintaining good oral function for the patient. ( info) |
10/134. Three-dimensional CT scan analysis for implant-supported fixed prostheses. Rapid technological advances in dental implantology, computer imaging, and dental radiography in combination with traditional prosthetic concepts offer today's clinicians unprecedented possibilities in diagnosis and treatment planning. This article presents information on the use of three-dimensional computed tomography scan analysis to determine the quality (density), quantity, and location of bone to establish the most effective implant placement. In addition, this article analyzes the correlation of prosthodontic, periodontic, and technological concepts necessary for completion of a maxillary and mandibular fixed, full-mouth rehabilitation. ( info) |