Microscopic Observations on Living Dental Pulp II. The Effect of Thermal Irritants on the Circulation of the Pulp in the Lower Rat Incisor

Pohto, M; Scheinin, Arje

doi:10.3109/00016355809064116

Cited by 83 publications

(40 citation statements)

References 14 publications

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“…Based on microscopic observations on living dental pulp, Pohto and Scheinin concluded that therapeutic procedures in dentistry may easily cause a rise in tooth temperature to a degree that irreversible changes in the pulp may occur. 106 The in vivo effects of heat on pulp temperature and its biological consequences were also demonstrated by Zach and Cohen in 1965. 89 In that study, a 5.5°C pulp temperature rise in rhesus monkeys, from application of a hot metal source to the facial enamel surface, induced necrosis in 15 % of evaluated pulps.…”

Section: Effects Of Heat On Pulp Temperaturementioning

confidence: 99%

Light curing in dentistry and clinical implications: a literature review

et al. 2017

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Contemporary dentistry literally cannot be performed without use of resin-based restorative materials. With the success of bonding resin materials to tooth structures, an even wider scope of clinical applications has arisen for these lines of products. Understanding of the basic events occurring in any dental polymerization mechanism, regardless of the mode of activating the process, will allow clinicians to both better appreciate the tremendous improvements that have been made over the years, and will also provide valuable information on differences among strategies manufacturers use to optimize product performance, as well as factors under the control of the clinician, whereby they can influence the longterm outcome of their restorative procedures.

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Section: Effects Of Heat On Pulp Temperaturementioning

confidence: 99%

Light curing in dentistry and clinical implications: a literature review

et al. 2017

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“…Eugenol depressed the constrictor response to norepinephrine (NE), histamine and transmural nerve stimulation. Since NE and histamine act on different and specific receptors, it is probable that dilator effect of eugenol was not mediated by the competition for specific receptor site, but it inhibited one or more stage of the post-receptor excitation-contraction sequence in smooth muscle (19). Recently, it is seen that the eugenoldilol, derived from natural eugenol made a role as a stimulator of non-selective -adrenoreceptor blocker and -adrenoreceptor blocker or as a 2-adrenoreceptor selective partial agonist (17,(20)(21)(22).…”

Section: Discussionmentioning

confidence: 99%

Effects of Ylang-Ylang Essential Oil on the Relaxation of Rat Bladder Muscle in vitro and White Rabbit Bladder in vivo

et al. 2003

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Current and primary treatment modality in overactive bladder includes the administration of anticholinergics. The demand for new agents has been rising since anticholinergics have proven to come with many side effects. This study was designed to investigate the effects of ylang-ylang essential oil (YYEO) on the relaxation of urinary bladder muscle in vitro and in vivo. Effects of YYEO were assessed on resting tension, and electrical field stimulation- and various drug-induced contraction in vitro by checking the isometric tension changes of muscle strips and same procedures were repeated in the presence of methylene blue, Nw-Nitro-L-arginine methyl ester hydrochloride (L-NAME), or N-ethylmaleimide, and in vivo. YYEO decreased significantly the contractility of strips. There was no statistically significant difference between the treated group only with YYEO and the pretreated group with YYEO and methylene blue or L-NAME. When N-ethylmaleimide was employed, there was a statistically significant decrease in the rate of contraction. In vivo studies showed the same results compared with in vitro study. The results of this study indicate that YYEO has a relaxing effect on the bladder, and such mechanism is thought to be brought about by a pathway mediated by c-AMP.

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“…Cohen, 1985). Such an interpretation is of interest as stasis and thrombosis m a y occur in the vascular bed in oral tissues (the dental pulp), after irritation by heat and cold (Pohto & Scheinin, 1958). If a post mortem uptake from aggregating platelets has taken place, this uptake might have been related to the immersion fixation procedure used.…”

Section: Discussionmentioning

confidence: 99%

5-Hydroxytryptamine immunoreactivity is detectable in sympathetic nerve fibres in rat oral tissues

1996

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The aim of this investigation was to examine if 5-hydroxytryptamine (5-HT) is detectable not only in mast cells but also in sympathetic nerve fibres in oral sites of the rat, including the periodontal ligament, pulp, palatal mucosa, and vestibular sulcus. Antibodies against 5-HT and tyrosine hydroxylase were used. Maxillae from rats were dissected free, fixed, decalcified, cut transversally, and processed for immunohistochemistry. Nerve fibres showing 5-HT-like immunoreactivity were regularly observed in the walls of the arteries and arterioles in the vestibular sulcus and the periodontal ligament. However, 5-HT-like immunoreactivity was not seen in the walls of the vessels of the palatal mucosa. Interestingly, 5-HT-like immunoreactivity coexisted with tyrosine hydroxylase-like immunoreactivity in the innervation of the periodontal ligament and the vestibular sulcus. Thus, the present study gives morphological correlate for the occurrence of effects of 5-HT derived not only from mast cells but also from sympathetic nerve fibres in oral tissues. The source of 5-HT in the nerve fibres as well as the functional implications of the observations remain to be determined.

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Microscopic Observations on Living Dental Pulp II. The Effect of Thermal Irritants on the Circulation of the Pulp in the Lower Rat Incisor

Cited by 83 publications

References 14 publications

Light curing in dentistry and clinical implications: a literature review

Light curing in dentistry and clinical implications: a literature review

Effects of Ylang-Ylang Essential Oil on the Relaxation of Rat Bladder Muscle in vitro and White Rabbit Bladder in vivo

5-Hydroxytryptamine immunoreactivity is detectable in sympathetic nerve fibres in rat oral tissues

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