Dental Implants.

Systematic reviews of literature over the period between 2008 and 2017 are discussed regarding clinical evidence for the factors affecting survival and failure of dental implants. The factors addressed include publication bias, tooth location, insertion torque, collar design, implant-abutment connection design, implant length, implant width, bone augmentation, platform switching, surface roughness, implant coatings, and the use of ceramic materials in the implant body and abutment.

Meta-analysis: an introduction into a research process.

Various methods for statistical analysis of data are available to clinicians and researchers. Meta-analysis is a tool by which small, related studies are identified and, through systematic review, are combined into a common data pool for a single, larger population analysis. As with all statistical methods, there are indications and contraindications for the use of meta-analysis.

Biocompatibility of dental materials.

With the long history of use of many materials in dental surgery, biocompatibility concerns are not as great a concern as other issues, such as long-term degradation, mechanical strength problems, and prevention of secondary caries. It is important, however, not to forget that the potential exists for adverse tissue responses to synthetic materials used in repair, augmentation, and repair of natural tissue structures. As new materials and repair techniques become available and the sophistication of cell-level and subcellular response evaluations increases, the concerns to be addressed and the methods to be used may change.

Dental cements for definitive luting: a review and practical clinical considerations.

Dental cement used to attach an indirect restoration to a prepared tooth is called a luting agent. A clinically relevant discussion of conventional and contemporary definitive luting agents is presented in this article. Physical properties are listed in table form to assist in comparison and decision-making.

Impression materials: a comparative review of impression materials most commonly used in restorative dentistry.

Impression materials are used to record intraoral structures for the fabrication of definitive restorations. Accurate impressions are necessary for construction of any dental prosthesis. The relationship between static and mobile oral structures must be reproduced accurately for an optimum cast.

Base metal alloys used for dental restorations and implants.

One of the primary reasons for the development of base metal alloys for dental applications has been the escalating cost of gold throughout the 20th century. In addition to providing lower cost alternatives, these nonprecious alloys were also found to provide better mechanical properties and aesthetics for some oral applications. Additionally, certain base metal alloy systems are preferred because of their superior mechanical properties, lower density, and in some cases, their capability to osseo-integrate.

Synthesis of alveolar bone Sharpey's fibers during experimental tooth movement in the rat.

There is little information concerning the effects of tooth movement on the relative synthesis of bone matrix and Sharpey's fiber collagenous proteins. The purpose of this study was to investigate this situation using radioautographic techniques. The maxillary first molar tooth in rats was tipped toward the midline using an appliance and the animals were injected with 3H-proline after 3 days and sacrificed 24 hr later.

The aging and diminishing dental faculty.

A dire need for additional dental educators is emerging. This article reflects on the heavily skewed age groups of our current dental educators and the lack of sufficient new faculty to undertake the tasks of faculty members. A literature review is presented of previous studies monitoring the current demographics of dental faculty, projected trends, and factors that influence an individual's career choices concerning dental education involvement.

Gingival blood flow.

In the oral cavity extensive vascular changes accompany progression of gingival inflammation or healing and remodeling of periodontal tissues. This study was designed to explore how the gingival capillary circulation might be influenced by mechanical stimuli; specifically, tooth brushing. Changes in blood flow subsequent to mechanical stimulus of brushing were measured by laser Doppler flowmetry at the midline, canine and premolar regions of maxillary and mandibular arches.