Biomedical subjects

A S el Askary

Publications and source records attributed to A S el Askary.

3 recordsLinked to original sources

PubMed2001

Multifaceted aspects of implant esthetics: the anterior maxilla.

Presurgical planning, implant positioning, soft tissue management, esthetic bone grafting, provisionalization, and prosthetic management are the treatment considerations that affect the treatment outcomes that are associated with dental implants in the anterior maxillary area of the oral cavity. Each should be approached with caution to help avoid postoperative esthetic complications and to maximize the esthetic outcome. This article reviews most of the current techniques that help to maximize the esthetic results and introduces a new classification for soft tissue management according to the time of clinical intervention.

Alveolar Bone Loss↗

PubMed1999

Why do dental implants fail? Part II.

Dental implant failure has led to continuous innovations of various implant systems and to different interceptive treatment modalities. These concerns have also led to selection of implant designs that best suit the various types of bone. A checklist has been created to facilitate collection of data on the different factors associated with dental implant failure. The data gathered from this list are the basis of a multinational statistical analysis. This analysis will provide accurate information about the percentage of each element causing implant failure. Different causes of failure, such as host factors, surgical placement, and improper implant selection, were reviewed in Part I of this two-part series. This article discusses failure categories in terms of etiology, failure mode, failure type, failure origin, failure timing, responsible personnel, and different tissue types.

Dental Implantation, Endosseous↗

PubMed1999

Why do dental implants fail? Part I.

Many factors are attributed to failure of the dental implant, either directly or indirectly. The focus of this article is to define the causation of dental implant failure, as well as to present an evaluation of the implant literature regarding etiology, classification, management, and treatment of implant failures. This article will highlight the initial signs of implant failure with a view of some clinical cases in terms of classification and degrees of implant failure. Finally, a dental implant failure checklist is formulated to guide the practitioner in defining the cause of implant failure, be it infective or noninfective, and to establish percentages and frequency of occurrence. The checklist applies to all implant systems and will help to determine the factors responsible for causation and the repair procedures, whether they are at the surgical or restorative phases. The definition of implant failure is set forth in terms of ailing, failing, failed, and surviving implants, and the appropriate treatments and dispositions are outlined.

Bone Diseases↗