The use of zirconia is an esthetic alternative to metal for implant-supported frameworks, and it has increased primarily for its high biocompatibility, low bacterial surface adhesion, high flexural strength and high mechanical features. The zirconia frameworks in fixed prosthetic restorations that are supported by implants is commonly covered with hand-layered overlay porcelain. This technical procedure is highly esthetic but it can cause some complications, such as porcelain fractures.
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April 2012
Restorative treatment of the severely worn dentition is typically indicated to replace deficient tooth structure, limit the advancement of tooth destruction, improve oral function, and enhance the appearance of the teeth. Minimizing removal of additional tooth structure while also fulfilling the desire of patients to have highly esthetic restorations can present a prosthetic challenge when the existing tooth structure is already diminished. This article presents a comprehensive minimally invasive prosthetic treatment approach using a lithium disilicate all-ceramic material for the esthetic rehabilitation of a severely worn dentition for a female patient diagnosed with Söjgren syndrome.
View Article and Find Full Text PDFInt J Periodontics Restorative Dent
October 2009
The use of biodegradable fixation materials or devices during maxillofacial, craniofacial, and orthopedic reconstructive surgical procedures reduces or eliminates the need to perform a second surgical procedure, which would otherwise be required to remove a nonbiodegradable device. This article presents a novel approach to augment a horizontally deficient alveolar ridge using both a resorbable plate/screw fixation system composed of a polylactic acid-polyglycolic acid (PLLA-PGA) copolymer to provide a rigid scaffolding for the bone chips and a resorbable collagen barrier (Bio-Gide, Osteohealth) to secure the graft material. For periodontal reconstructive procedures, such as guided bone regeneration, the clinical application of this technique may be advantageous and also provide a more esthetic result by minimizing the need for an additional surgical procedure.
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