Current Issue : January - March Volume : 2013 Issue Number : 1 Articles : 6 Articles
This case report describes fabrication of a palatal lift prosthesis for a quadriplegic edentulous 30-year-old male with past head\r\ntraumatic injury. We constructed an implant supported bar and used a soft-lining material for the maxillary palatal lift prosthesis\r\nto minimize the possibility of implant overloading and also provide a less complex and less expensive procedure for this patient....
A terbinafine impregnated subcutaneous implant was evaluated to determine if drug was released into isotonic saline over the\r\ncourse of 6 months at two different temperatures, 37?C and 4?C. These temperatures were chosen to simulate the nonhibernating\r\n(37?C) and hibernating body (4?C) temperatures of little brown bats (Myotis lucifugus). Insectivorous bats of North America,\r\nincluding little brown bats, have been devastated by white nose syndrome, a fungal infection caused by Geomyces destructans. No\r\ntreatments exist for bats infected with G. destructans. Implants were placed into isotonic saline; samples were collected once per\r\nweek and analyzed with HPLC to determine terbinafine concentrations. The mean amount of terbinafine released weekly across\r\nthe 28 weeks was approximately 1.7 �µg at 4?C and 4.3 �µg at 37?C. Although significant differences in the amount released did\r\noccur at some time points, these differences were not consistently greater or less at either of the temperatures. This study showed\r\nthat terbinafine was released from an impregnated implant over the course of 6 months at concentrations ranging from 0.02 to\r\n0.06 �µg/mL depending on temperature, which may be appropriate for little brown bats (Myotis lucifugus) infected with Geomyces\r\ndestructans, the etiologic agent of white nose syndrome....
Introduction: Mini-implants are being extensively used in orthodontics, providing a new field of possibilities for\r\ntreatment of the cases when a maximum anchorage is required. The procedure is critical during the insertion of miniimplants\r\nin the alveolar process between the roots of the tooth, and major complications can include contact and\r\ndamage to adjacent tooth roots.\r\nObjective: The following case report describes a failure because of unintentional root damage after orthodontic\r\nmini-implant placement, resulting in longitudinal root fracture followed by extraction of the damaged mandibular\r\nsecond molar.\r\nDiscussion: Factors which might have contributed to the irreversible iatrogenic injury associated with the use of\r\nmini-implants in a diabetic patient submitted to orthodontic treatment are discussed and analyzed.\r\nConclusion: Although mini-implant placement has become a routine procedure in the orthodontic practice, it still\r\nrepresents an intrinsic risk to the process of insertion, which is the damage to adjacent structures. The placement of\r\nmini-implants must be carefully monitored, even in those cases which present low risk for iatrogenic injury. However\r\nmuch confident the professional may be, self-confidence in excess often leads to failure, provoking irreversible\r\ndamages....
By allowing reconstruction of compromised occlusion, dental implants contribute to an improvement in quality of life (QOL)\r\nand diet. Injury to a nerve during such treatment, however, can result in a sudden decline in QOL. And once a nerve has been\r\ninjured, the chances of a full recovery are slim unless the damage is only slight. If such damage causes neuropathic pain severe\r\nenough to prevent sleep, the patient�s QOL will deteriorate dramatically.While damage to skin tissue or bone invariably heals over\r\ntime, damage to nerves does not, indicating the need to avoid such injury while performing implant insertion, for example. This\r\nmeans not relying solely on X-ray images, which can be rather unclear, but also using computed tomography to allow preoperative\r\nplanning and intraoperative execution to be performed as accurately as possible. Moreover, if sensory damage does occur it is\r\nessential to avoid breaking the bond of trust between dentist and patient by giving false assurances of recovery. In such cases,\r\nappropriate measures must be taken promptly. This paper describes pain management for nerve injury following dental implant\r\nsurgery at the Orofacial Pain Center of Tokyo Dental College Suidoubashi Hospital....
Statement of the Problem. Fit of prosthodontic frameworks is linked to the lifetime survival of dental implants and maintenance of\r\nsurrounding bone. Purpose. The purpose of this study was to evaluate and compare the precision of fit of milled one-piece Titanium\r\nfixed complete denture frameworks to that of conventional cast frameworks. Material and Methods. Fifteen casts fabricated from\r\na single edentulous CAD/CAM surgical guide were separated in two groups and resin patterns simulating the framework for a\r\nfixed complete denture developed. Five casts were sent to dental laboratories to invest, cast in a Palladium-Gold alloy and fit the\r\nframework. Ten casts had the resin pattern scanned for fabrication of milled bars in Titanium. Using measuring software, positions\r\nof implant replicas in the definitive model were recorded. The three dimensional spatial orientation of each implant replica was\r\nmatched to the implant replica. Results. Results demonstrated themean vertical gap of the Cast framework was 0.021 (+0.004)mm\r\nand 0.012 (0.002)mm determined by fixed and unfixed best-fit matching coordinate system. For Titanium frameworks they were\r\n0.0037 (+0.0028)mm and 0.0024 (+0.0005) mm, respectively. Conclusions. Milled one-piece Titanium fixed complete denture\r\nframeworks provided a more accurate precision of fit then traditional cast frameworks....
The ongoing pursuit of aesthetic excellence in the field of implant therapy has incorporated prosthetic concepts in the early\r\ntreatment-planning phase, as well as the previously discussed surgical concepts. The literature has addressed these prosthetic and\r\nlaboratory approaches required to enhance and perfect the soft and hard tissue management (SHTM). After surgically providing\r\nan acceptable hard tissue architecture and adequate timing of loading of the implant, the prosthetic phase is responsible for the soft\r\ntissue modeling, through correctly planned and executed procedures, which induce a satisfactory soft tissue profile by considering\r\nthe microvasculature, the abutment connection and positioning, and the implementation of an adequate provisional phase. The\r\nobjectives are the modeling of the soft tissues through the use of a conforming periorestorative interface which will produce desired\r\nand stable results....
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