The role of local anaesthesia in intra-operative pain management in dental practice

Ból ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 24-35
Author(s):  
Marcin Pasternak ◽  
Jarosław Woroń
Keyword(s):  
Pain Management ◽  
Mechanism Of Action ◽  
Local Anaesthesia ◽  
Local Anaesthetics ◽  
Dental Practice ◽  
Sodium Cations ◽  
Historical Outline ◽  
Voltage Dependent ◽  
Physical And Chemical

Intra-operative pain management with the means of local anaesthesia is an important of dental practice. Local anaesthetics are drugs the most commonly used drugs in dentistry, being, at the same time, the safest and most effective pain preventing and pain relieving agents known to medicine.The mechanism of action of local anaesthetics involves interruption of the conduction of nerve impulses. These agents show high affinity for the voltage-dependent sodium channels (Nav), they block them, thus preventing the influx of sodium cations through the membranes of the neuron. The potential threshold is not reached and the potential itself is not present. The potency of local anaesthetic drugs depends primarily on the concentration of the solutions used, while possible side effects depend on the dose. In this paper the characteristics of local anaesthetics used in dental practice were presented as well as characteristics of vasoconstrictors added to anaesthetic solutions. The historical outline, the mechanism of action of local anaesthetics and the currently used both basic and additional methods of anaesthesia are discussed. Possible strategies for improving the effectiveness of anaesthesia by the means of physical and chemical methods were explained. General and local adverse reactions of dental anaesthetics were also discussed, along with ways to prevent and treat them.

scholarly journals Experimental Evaluation of Hyaluronidase Activity in Combination with Specific Drugs Applied in Clinical Techniques of Interventional Pain Management and Local Anaesthesia

2008 ◽  
Vol 6;11 (12;6) ◽  
pp. 877-883
Author(s):  
Thomas Bittorf
Keyword(s):  
Pain Management ◽  
Contrast Media ◽  
Local Anaesthesia ◽  
Local Anaesthetics ◽  
Scar Tissue ◽  
Maximum Effect ◽  
Iodinated Contrast Media ◽  
Hyaluronidase Activity ◽  
Microtiter Plates ◽  
Iodinated Contrast

Background: Hyaluronidase is an enzyme additive used in local anaesthesia and interventional pain reducing procedures such as adhesiolysis of epidural scar tissue after spinal surgery. Only a limited number of studies describe the influence of drugs on hyaluronidase activity. Postulated effects and effectiveness of hyaluronidase are only based on clinical observations. Objective: The aim of this study is to investigate the influence of the combined drugs on the activity of hyaluronidase under standardized conditions and to verify the effectiveness of the enzyme. Design: An ELISA-based microtiter-technique is used to evaluate the activity of hyaluronidase in combination with local anaesthetics, corticosteroids, NaCl 10%, and iodinated contrast media. Methods: Microtiter plates were coated with biotinylated hyaluronate and incubated with hyaluronidase in combination with the above-mentioned drugs. The activity of hyaluronidase was determined by an avidin-peroxidase-based procedure using an ELISA reader. Incubations were carried out at room temperature as well as at 37°C. Results: The data show that drugs affect the activity of hyaluronidase in different ways. Iodinated contrast media, NaCl (10%), and the absence of corticosteroids reduce hyaluronidase activity. In contrast, higher activities were detected at a lower NaCl concentration (0.9%). We cannot attribute a significant influence to local anaesthetics. Conclusions: Hyaluronidase is effective in all combinations with drugs. To get the maximum effect calculated use of accompanying drugs is necessary. Key words: Hyaluronidase, enzymatic activity, adhesiolysis, local anaesthesia, pain management

Role of the Cilia Membrane in Control of Microtubule Sliding

1980 ◽  
Vol 38 ◽  
pp. 612-615
Author(s):  
Edna S. Kaneshiro
Keyword(s):  
Control Mechanism ◽  
Beat Frequency ◽  
Surface Membrane ◽  
Ciliary Membrane ◽  
Ciliary Beating ◽  
Ciliary Reversal ◽  
Voltage Dependent ◽  
Reversal Mechanism ◽  
And Function

It is currently believed that ciliary beating results from microtubule sliding which is restricted in regions to cause bending. Cilia beat can be modified to bring about changes in beat frequency, cessation of beat and reversal in beat direction. In ciliated protozoans these modifications which determine swimming behavior have been shown to be related to intracellular (intraciliary) Ca2+ concentrations. The Ca2+ levels are in turn governed by the surface ciliary membrane which exhibits increased Ca2+ conductance (permeability) in response to depolarization. Mutants with altered behaviors have been isolated. Pawn mutants fail to exhibit reversal of the effective stroke of ciliary beat and therefore cannot swim backward. They lack the increased inward Ca2+ current in response to depolarizing stimuli. Both normal and pawn Paramecium made leaky to Ca2+ by Triton extrac¬tion of the surface membrane exhibit backward swimming only in reactivating solutions containing greater than IO-6 M Ca2+ Thus in pawns the ciliary reversal mechanism itself is left operational and only the control mechanism at the membrane is affected. The topographic location of voltage-dependent Ca2+ channels has been identified as a component of the ciliary mem¬brane since the inward Ca2+ conductance response is eliminated by deciliation and the return of the response occurs during cilia regeneration. Since the ciliary membrane has been impli¬cated in the control of Ca2+ levels in the cilium and therefore is the site of at least one kind of control of microtubule sliding, we have focused our attention on understanding the structure and function of the membrane.

SOME ASPECTS OF THE FUNCTION OF FSH- AND LH-LIKE HORMONES IN NORMAL AND HYPOPHYSECTOMIZED FEMALE RATS, IN CONNECTION WITH RESERPINE ADMINISTRATION

1965 ◽  
Vol 49 (1) ◽  
pp. 28-38
Author(s):  
M. Grönroos ◽  
E. Mäkinen ◽  
K. Lahtinen ◽  
R. Tirri
Keyword(s):  
Mechanism Of Action ◽  
Biological Effect ◽  
Female Rats ◽  
Histological Picture ◽  
Peripheral Effect ◽  
Pituitary Secretion

ABSTRACT The effect of reserpine on the secretion of FSH and LH was studied as well as the role of the peripheral effect of reserpine after hypophysectomy. The results in the unoperated animals suggest that reserpine inhibits the pituitary secretion of both FSH and LH. Both these hormones combined with reserpine had a very different biological effect than was seen without reserpine. HCG (LH-like) and particularly PMS (FSH-like) hormones combined with reserpine caused definite enlargement of the ovaries. In the hypophysectomized groups, the effect of the PMS and HCG hormones administered together with reserpine or without it was the same with regard to the weight of the ovaries, but not with regard to their histological picture. On the basis of these results, reserpine may be said to have a peripheral effect although the nature of its mechanism of action is difficult to state. Reserpine probably affects the ovaries by inhibiting the follicular cycle and, consequently, the formation of new and more mature follicles.

Role of Paracetamol in Acute Pain Management

Drugs ◽  
2003 ◽  
Vol 63 (Special Issue 2) ◽  
pp. 15-21 ◽  
Author(s):  
Henrik Kehlet ◽  
Mads Utke Werner
Keyword(s):  
Pain Management ◽  
Acute Pain ◽  
Acute Pain Management

Role of Flavonoids in Neurodegenerative Disorders with Special Emphasis on Tangeritin

2019 ◽  
Vol 18 (8) ◽  
pp. 581-597 ◽  
Author(s):  
Ambreen Fatima ◽  
Yasir Hasan Siddique
Keyword(s):  
Medicinal Plants ◽  
Mechanism Of Action ◽  
Neurodegenerative Disorders ◽  
Treatment Strategies ◽  
Dietary Supplementation ◽  
Plant Polyphenols ◽  
Promising Candidate ◽  
Naturally Occurring ◽  
The Brain

Flavonoids are naturally occurring plant polyphenols found universally in all fruits, vegetables and medicinal plants. They have emerged as a promising candidate in the formulation of treatment strategies for various neurodegenerative disorders. The use of flavonoid rich plant extracts and food in dietary supplementation have shown favourable outcomes. The present review describes the types, properties and metabolism of flavonoids. Neuroprotective role of various flavonoids and the possible mechanism of action in the brain against the neurodegeneration have been described in detail with special emphasis on the tangeritin.

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