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Effectiveness of a Super-Pulsed CO2 Laser For Removal of Biofilm From Three Different Types of Implant Surfaces: An In Vitro Study
As dental implants become
a routine part of dental practice, so too will the
prevalence of peri-implant diseases. Inherent
to the treatment of peri-implant disease is the
removal of microbial biofilms from the implant
surface. Currently, there is no standardized
protocol for application of any treatment
modality directed at implant surface decontamination.
In this in vitro study, we report
on the effectiveness of a super-pulsed CO2
laser, delivering an
average fluence of 6.3 to 113 J/cm2, to
remove biofilm from three different types of
implant surface topographies.
Biofilms ranged in thickness from
5 to 15 μm. An average fluence of 19 J/cm2
was sufficient to achieve 100% ablation of the
biofilm on hydrophilic sandblasted and acidetched
surface specimens (SA). However, to
achieve 100% ablation of biofilm on HA and
highly crystalline, phosphate enriched titanium
oxide (PTO) surfaced implants required an
average fluence of 38 J/cm2.
A Cone Beam Tomographic Evaluation of Hard Tissue Alterations at Immediate Implants: A Clinical Prospective Study
The aim on this study was to investigate the hard tissue alterations of the alveolar bone crest following tooth extraction and immediate implant placement using cone beam computed tomography. Twelve consecutive patients in need of an immediate dental implant were included in the study. An implant of proper length was placed in the extraction socket wit the coronal margin of the rough surface generally flush with or deeper than the buccal alveolar bone crest. The results should be viewed with caution because of the small number of cases examined.
Finding Z: A Mathematical Method For Predicting Tissue Position After Implant Abutment-Restoration Placement
A visible abutment-restorative interface is a problematic consequence, especially in the esthetic zone. This article presents
formulas to predict the vertical tissue position around the abutment-restoration, which can be used both as a guide to the
clinical situation and as an aid to computer-aided design and computer-aided manufacturing design.
Application and Success of Two Stereolithographic Surgical Guide Systems for Implant Placement with Immediate Loading
Two different stereolithographic surgical guide systems, NobelGuide (Nobel Biocare) and Simplant (Dentsply), were compared clinically, and the survival rates of te planned immediately loaded dental implants with prefabricated provisional restorations were evaluated. Both types of stereolithographic surgical templates were sufficiently accurate in transferring the planned implant positions to the surgical field, allowing the placement of prefabricated provisionals. These technologies are most beneficial in patients in whom the simultaneous placement of multiple implants in combination with complex restorations is planned.
Vonlays: A Conservative Esthetic Alternative to Full-Coverage Crowns
Porcelain veneers have long been a popular restorative option that have evolved into a well-accepted
treatment that can be fabricated in various ways. Onlays are another common treatment modality used in
contemporary dentistry to restore large areas of decay and to replace old restorations. With the availability of
newer high-strength materials such as lithium disilicate and processing technologies like CAD/CAM and heat
pressing, dental professionals are now able to produce highly esthetic, high-strength restorations that blend
seamlessly with the natural dentition while also withstanding posterior occlusal forces. This has resulted in
innovative methods of providing minimally invasive dentistry. One such approach is a combination restoration
the authors call a “vonlay,” which, as demonstrated in this case report, can be used as an alternative to coverage
crowns to restore damaged posterior teeth.
Crowns and Bridges