ABSTRACT
Multiple myeloma is a blood dyscrasia involving plasma cells in the bone marrow. Much new information and many management strategies exist for these disorders. For dental care, there are a number of issues for the clinician to consider. This review discusses current management of this disease and a case report.
Subject(s)
Dental Care for Chronically Ill , Dental Implantation, Endosseous , Dental Implants , Multiple Myeloma/complications , Aged , Humans , MaleABSTRACT
An in vitro experimental model was designed and tested to determine the influence that peri-implant strain may have on the overall crestal bone. Strain gages were attached to polymethylmethacrylate (PMMA) models containing a screw-type root form implant at sites 1 mm from the resin-implant interface. Three different types of crown superstructures (cemented, 1-screw [UCLA] and 2-screw abutment types) were tested. Loading (1 Hz, 200 N load) was performed using a MTS Mechanical Test System. The strain gage data were stored and organized in a computer for statistical treatment. Strains for all abutment types did not exceed the physiological range for modeling and remodeling of cancellous bone, 200-2500 µÎµ (microstrain). For approximately one-quarter of the trials, the strain values were less than 200 µÎµ the zone for bone atrophy. The mean microstrain obtained was 517.7 µÎµ. In conclusion, the peri-implant strain in this in vitro model did not exceed the physiologic range of bone remodeling under axial occlusal loading.
Subject(s)
Dental Abutments , Dental Implants , Alveolar Process , Biomechanical Phenomena , Dental Prosthesis Design , Stress, MechanicalABSTRACT
PURPOSE: The aim of this study was to evaluate the survival rates for surgical placement of dental implants in the Implant Dentistry Study Consortium (IDSC), a training program for general dentists in the UAE. MATERIALS: The records of the program were reviewed, and all implants placed were evaluated, and the survival and failures were identified. These records were compared with those from an experienced prosthodontist who has been trained in both the surgical and restorative phases of implant dentistry. Descriptive statistics and Kaplan-Meier survival curves were calculated. The Kaplan-Meier statistics were compared using the log-rank test. RESULTS: The characteristics of the population of the IDSC and the prosthodontist were similar. During the study interval, the prosthodontist had 299 implants in 145 subjects and IDSC with 217 implants in 104 subjects placed. The survival rates were 96% for the experienced prosthodontist and 93.5% for IDSC dentists. The Kaplan-Meier curves were not statistically different from each other, P > 0.05. CONCLUSION: A closely supervised training program in dental implantology of 4 sessions, 3 day each, can provide successful surgical experiences for the program participants.
Subject(s)
Dental Implantation/education , Dental Restoration Failure , Education, Dental, Continuing/methods , General Practice, Dental/education , Prosthodontics/education , Adult , Aged , Alveolar Ridge Augmentation/statistics & numerical data , Dental Implantation, Endosseous/statistics & numerical data , Dental Implants/statistics & numerical data , Dental Prosthesis, Implant-Supported/statistics & numerical data , Female , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Osseointegration , Retrospective Studies , Treatment Outcome , United Arab Emirates , Young AdultABSTRACT
Recording the implant position for master cast fabrication for multiple implant systems may require a large inventory of impression copings. A technique is described whereby implant impression-making procedures can be modified to be more universal to all implant systems. This makes the procedure more cost-effective by simply incorporating the use of a rubber O-ring on the abutment or fixture mount, which then eliminates the use of a transfer coping. This technique can be applied at the time of surgery for indexing as well as during the final impression appointment.
