Ablation ability of an erbium laser with a 2.64-μm wavelength during preparation of dental tissues

1998 ◽  
Author(s):  
Victor N. Balin ◽  
Alexey S. Gook ◽  
Sergey P. Kropotov ◽  
Victor A. Serebryakov ◽  
Tatyana A. Kusovkova ◽  
...  
Keyword(s):  
Erbium Laser ◽  
Dental Tissues

Erbium laser radiation action onto dental tissues

1996 ◽  
Author(s):  
Victor N. Balin ◽  
Alexey S. Gook ◽  
Sergey P. Kropotov ◽  
Dimitry Y. Maday ◽  
Tatyana A. Kusovkova ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Erbium Laser ◽  
Dental Tissues ◽  
Radiation Action

Scanning Electron Microscopy and X-Ray Analyses of Dental Tissues from a Hibernator

1976 ◽  
Vol 34 ◽  
pp. 178-179
Author(s):  
M. L. Zimny ◽  
A. C. Haller
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Body Temperature ◽  
Ground Squirrel ◽  
Alveolar Bone ◽  
X Ray ◽  
Dental Tissues ◽  
Bone Minerals ◽  
Apical Tooth ◽  
Scanning Electron

During hibernation the ground squirrel is immobile, body temperature reduced and metabolism depressed. Hibernation has been shown to affect dental tissues varying degrees, although not much work has been done in this area. In limited studies, it has been shown that hibernation results in (1) mobilization of bone minerals; (2) deficient dentinogenesis and degeneration of alveolar bone; (3) presence of calculus and tears in the cementum; and (4) aggrevation of caries and pulpal and apical tooth abscesses. The purpose of this investigation was to study the effects of hibernation on dental tissues employing scanning electron microscopy (SEM) and related x-ray analyses.

An in-vitro study on the effectiveness of different irrigation solutions against Enterococcus faecalis with/without Erbium laser activation

2020 ◽  
Vol 2 (4) ◽  
pp. 1-1
Author(s):  
Gülşah Balan ◽  
Sadık Kalaycı ◽  
Ayşen Yarat ◽  
Serap Akyüz ◽  
Firettin Şahin
Keyword(s):  
Enterococcus Faecalis ◽  
In Vitro Study ◽  
Vitro Study ◽  
Erbium Laser

scholarly journals Hard Dental Tissues Regeneration—Approaches and Challenges

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2558
Author(s):  
Mihaela Olaru ◽  
Liliana Sachelarie ◽  
Gabriela Calin
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Stem Cell ◽  
Growth Factors ◽  
Present Review ◽  
Modern Concept ◽  
Dental Tissues ◽  
Tissue Engineering Approach ◽  
Hard Dental Tissues ◽  
Review Reports

With the development of the modern concept of tissue engineering approach and the discovery of the potential of stem cells in dentistry, the regeneration of hard dental tissues has become a reality and a priority of modern dentistry. The present review reports the recent advances on stem-cell based regeneration strategies for hard dental tissues and analyze the feasibility of stem cells and of growth factors in scaffolds-based or scaffold-free approaches in inducing the regeneration of either the whole tooth or only of its component structures.

scholarly journals Molecular clocks in ancient proteins: Do they reflect the age at death even after millennia?

2021 ◽  
Author(s):  
Nina Sophia Mahlke ◽  
Silvia Renhart ◽  
Dorothea Talaa ◽  
Alexandra Reckert ◽  
Stefanie Ritz-Timme
Keyword(s):  
Protein Degradation ◽  
Forensic Medicine ◽  
Molecular Clocks ◽  
Post Mortem ◽  
Age At Death ◽  
Morphological Examination ◽  
Dental Tissues ◽  
Ancient Proteins ◽  
Age Estimates ◽  
Age At Death Estimation

AbstractAge at death estimation in cases of human skeletal finds is an important task in forensic medicine as well as in anthropology. In forensic medicine, methods based on “molecular clocks” in dental tissues and bone play an increasing role. The question, whether these methods are applicable also in cases with post-depositional intervals far beyond the forensically relevant period, was investigated for two “protein clocks”, the accumulation of D-aspartic acid (D-Asp) and the accumulation of pentosidine (Pen) in dentine. Eight teeth of skeletons from different burial sites in Austria and with post-depositional intervals between c. 1216 and c. 8775 years were analysed. The results of age at death estimation based on D-Asp and Pen in dentine were compared to that derived from a classical morphological examination. Age at death estimation based on D-Asp resulted consistently in false high values. This finding can be explained by a post-mortem accumulation of D-Asp that may be enhanced by protein degradation. In contrast, the Pen-based age estimates fitted well with the morphological age diagnoses. The described effect of post-mortem protein degradation is negligible in forensically relevant time horizons, but not for post-depositional intervals of thousands of years. That means that the “D-Asp clock” loses its functionality with increasing post-depositional intervals, whereas Pen seems to be very stable. The “Pen-clock” may have the potential to become an interesting supplement to the existing repertoire of methods even in cases with extremely long post-depositional intervals. Further investigations have to test this hypothesis.

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