scholarly journals Advantages of Transoral Endoscopic Diode Laser Microsurgery for the Treatment of Early-Stage Glottic Laryngeal Cancers

2020 ◽  
Vol 13 (2) ◽  
Author(s):  
Ali Seyed Resuli ◽  
Harun Cansiz
Keyword(s):  
Diode Laser ◽  
Early Stage ◽  
Laser Microsurgery

Transoral 980-nm/1470-nm dual-wavelength fiber laser microsurgery for early-stage glottic carcinoma

Oral Oncology ◽  
2019 ◽  
Vol 96 ◽  
pp. 66-70
Author(s):  
Faya Liang ◽  
Zhiwen Xiao ◽  
Renhui Chen ◽  
Pin Han ◽  
Peiliang Lin ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Early Stage ◽  
Dual Wavelength ◽  
Glottic Carcinoma ◽  
Laser Microsurgery

scholarly journals STUDY OF THE EFFECT OF FLUORIDE ON LASER ENHANCED REMINERALIZATION OF DEMINERALIZED HUMAN ENAMEL

2021 ◽  
Vol 9 (01) ◽  
pp. 650-654
Author(s):  
Hanan Mansour Abdallah ◽  
◽  
Reham Magdy Ameen ◽  
Khaled El-Haddad ◽  
◽  
...  
Keyword(s):  
Diode Laser ◽  
Early Stage ◽  
Control Group ◽  
Surface Microhardness ◽  
Fluoride Toothpaste ◽  
Hardness Tester ◽  
Human Enamel ◽  
Demineralized Enamel ◽  
Topical Fluoride ◽  
Caries Lesions

Background: Enamel is regularly subjected to demineralization and remineralization under different oral circumstances. Any interruption in the balance between demineralization and remineralization can initiate the formation of incipient caries lesions. However, in the early stage of formation these lesions can be remineralizedusing various preventive measures. Topical fluorides have shown positive results in the prevention of caries in several studies. The aim of this study was to determine the effects of combination between diode laser and topical fluoride application on the surface microhardness of the demineralized enamel. Materials and Methods: Four caries-free human premolars were examined under the stereomicroscope to exclude teeth with surface enamel defects. Buccal enamel surface microhardness (SMH) for all samples was measured by Micro Vickers Hardness Tester (MVHT). The samples were demineralized by 15% Hydrochloric acid (HCl) with PH average 4.5, then the SMH was measured. The demineralized teeth were subjected to fluoride toothpaste after diode laser application. Third evaluation for enamel SMH was performed after remineralization. Results: Enamel SMH of the control group has shown the highest values followed by the remineralization group while the least values were measured in the demineralization group. Conclusions: The results obtained in the study lead to the conclusion that application of fluoride toothpaste after diode laser could enhance the remineralization potential of the demineralized enamel.

Laser microsurgery demonstrates that cytoplasmic strands anchoring the nucleus across the vacuole of premitotic plant cells are under tension. Implications for division plane alignment

Development ◽  
1991 ◽  
Vol 113 (3) ◽  
pp. 931-939 ◽  
Author(s):  
K.C. Goodbody ◽  
C.J. Venverloo ◽  
C.W. Lloyd
Keyword(s):  
Early Stage ◽  
Side Wall ◽  
Central Position ◽  
Plant Tissues ◽  
Soap Bubble ◽  
Laser Microsurgery ◽  
Division Plane ◽  
Rigid Surfaces ◽  
State Of Tension ◽  
Cytoplasmic Strand

In epidermal cells of the plant Nautilocalyx lynchii, induced to divide by explantation, the nucleus undergoes a series of movements, on cytoplasmic leading to construction of a division plane across the vacuole. In the stage, the nucleus separates from the cortex, occupying an eccentric the cell, suspended across the vacuole by few thin strands. In the central the nucleus occupies a central position anchored to the cortex by more thicker strands. Finally, the phragmosome forms as a coalescence of strands across the cell, constituting the division plane within which cytokinesis take place. The behaviour and alignment of these strands is important since some are precursors of the division plane. In a previous (Flanders et al (1990) J. Cell Biol. 110, 1111–1122), it was pointed out alignment of cytoplasmic strands showed features common to a variety of under tension. That is, provided they are free to move relative to the strands radiating from the nucleus should tend to seek short rather than routes to the cortex. In this way, strands under tension would move away distant cell corners where two of the cell's edges make a three-way a neighbouring wall. This provides a basis for the avoidance of four-way and the maintenance of three-way junctions which are a characteristic most plant tissues. In addition, tensile elements such as soap bubble contact rigid surfaces perpendicularly. Perpendicular attachment of the to the side wall is embodied in Sachs' rule of cell division and the the premitotic strands in a state of tension would provide a basis for In this study, laser microsurgery has been used to confirm that strands the premitotic nucleus to the cortex are under tension since the severed retract immediately upon severance. However, the response of the nucleus breaking of a cytoplasmic strand by laser depends upon the particular nucleus is most likely to move during the early stage when it is placed and has few cytoplasmic strands. In the middle and phragmosomal nucleus is more resistant. Computer-aided image reconstruction of anti-

Alterations in the number of motoneurons containing immunoreactive calcitonin gene-related peptide(CGRP)& choline acetyltransferase(ChAT) in the cervical spinal cord of the wobbler mouse during the development of the motoneuron disease

1995 ◽  
Vol 53 ◽  
pp. 970-971
Author(s):  
L. Vacca-Galloway ◽  
Y.Q. Zhang ◽  
P. Bose ◽  
S.H. Zhang
Keyword(s):  
Spinal Cord ◽  
Early Stage ◽  
Cervical Spinal Cord ◽  
Wild Type Mouse ◽  
Reflex Response ◽  
Mouse Strains ◽  
Behavioral Tests ◽  
Wobbler Mouse ◽  
Stage 4 ◽  
Stage 1

The Wobbler mouse (wr) has been studied as a model for inherited human motoneuron diseases (MNDs). Using behavioral tests for forelimb power, walking, climbing, and the “clasp-like reflex” response, the progress of the MND can be categorized into early (Stage 1, age 21 days) and late (Stage 4, age 3 months) stages. Age-and sex-matched normal phenotype littermates (NFR/wr) were used as controls (Stage 0), as well as mice from two related wild-type mouse strains: NFR/N and a C57BI/6N. Using behavioral tests, we also detected pre-symptomatic Wobblers at postnatal ages 7 and 14 days. The mice were anesthetized and perfusion-fixed for immunocytochemical (ICC) of CGRP and ChAT in the spinal cord (C3 to C5).Using computerized morphomety (Vidas, Zeiss), the numbers of IR-CGRP labelled motoneurons were significantly lower in 14 day old Wobbler specimens compared with the controls (Fig. 1). The same trend was observed at 21 days (Stage 1) and 3 months (Stage 4). The IR-CGRP-containing motoneurons in the Wobbler specimens declined progressively with age.

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