scholarly journals Intrapulpal venous injection. Pilot study

2021 ◽  
Vol 19 (1) ◽  
pp. 7-10
Author(s):  
A. Zh. Petrikas ◽  
E. V. Chestnykh ◽  
D. V. Medvedev ◽  
I. O. Larichkin ◽  
K. V. Kulikova

Relevance. The reason for the study was our histological specimen with intrapulpal dye injection from the monograph "Anesthesia in Endodontics". Outside the pulp chamber, in the root canal, the ink is diffusely distributed throughout the vessels. There was a hypothesis about the vascular nature of intrapulpal injection.Aim. Тo prove vascular mechanism intrapulpal injection.Materials and methods. A randomized prospective pilot study was performed in 15 patients (9 men, 6 women) with 15 teeth vital pulpectomy. Traditional anesthesia conducted articaine 4% with epinephrine 1:100 000. When accessed in the pulpintroduced drop the same anesthetic. Heart rate was determined after 30 seconds for 3 minutes pulse oximeter MD 300.Results. There was expressed vascular reaction to intrapulpal introduction anesthetic with epinephrine. It has resulted in a sharp increase in pulse rate by an average of 11.3 beats /min, return to the original level after 3 minutes. Conclusions. Based on the results obtained, we assume the vascular-venous nature of intrapulpal anesthesia.

1976 ◽  
Vol 42 (1) ◽  
pp. 105-106 ◽  
Author(s):  
John J. Horan ◽  
Frank C. Layng ◽  
Carol H. Pursell

To examine the effects of “in vivo” emotive imagery on dental discomfort (as measured by pulse rate and self-report) 27 female subjects undergoing tooth prophylaxis were exposed to three tape-recorded treatment conditions (relaxation imagery, neutral imagery, and a blank tape) in counterbalanced order. Promising findings of a pilot study were not confirmed on heart rate; however, on self-reported discomfort, positive differences appeared between the relaxation imagery and each of the control conditions.


2019 ◽  
Vol 5 (1) ◽  
pp. 26-31
Author(s):  
Syahid Nur Yasin

The use of Heart Rate monitor technology has developed rapidly in the world of sports. However, there are still few accomplished sports coaches who use it during their coaching, although it can help the trainer to know the progress of the athlete's movements. This research is a pilot study that aims to determine the motion intensity of canoeing athletes by using a Heart Rate monitor in the PE training process. A total of 24 canoeing athletes aged 15 years and above were involved in this study. The instruments used were Polar GPS (Heart Rate monitor) RC3 and Polar GPS RC3 to measure the pulse and distance of canoeing athletes during training. During the process of coaching the training canoeing athletes obtain an average pulse rate of 138.94 ± 5.48 bpm, with a maximum pulse rate of 191.75 ± 10.36 bpm. The total distance traveled by a canoeing athlete is 0.23 ± 0.10 km. Coaching training carried out on average is in the low to moderate and medium to high categories. The use of a Heart Rate monitor in the training process is strongly recommended to be able to measure the intensity of motion.


2018 ◽  
Author(s):  
Angelos Kyriacou ◽  
Alexis Kyriacou ◽  
Akheel A Syed ◽  
Petros Perros

Author(s):  
Gozde Serindere ◽  
Ceren Aktuna Belgin ◽  
Kaan Orhan

Background: There are a few studies about the evaluation of maxillary first premolars internal structure with micro-computed tomography (micro-CT). The aim of this study was to assess morphological features of the pulp chamber in maxillary first premolar teeth using micro- CT. Methods: Extracted 15 maxillary first premolar teeth were selected from the patients who were in different age groups. The distance between the pulp orifices, the diameter of the pulp and the width of the pulp chamber floor were measured on the micro-CT images with the slice thickness of 13.6 µm. The number of root canal orifices and the presence of isthmus were evaluated. Results: The mean diameter of orifices was 0.73 mm on the buccal side while it was 0.61 mm on palatinal side. The mean distance between pulp orifices was 2.84 mm. The mean angle between pulp orifices was -21.53°. The mean height of pulp orifices on the buccal side was 4.32 mm while the mean height of pulp orifices on the palatinal side was 3.56 mm. The most observed shape of root canal orifices was flattened ribbon. No isthmus was found in specimens. Conclusion: Minor anatomical structures can be evaluated in more detail with micro-CT. The observation of the pulp cavity was analyzed using micro-CT.


TH Open ◽  
2021 ◽  
Vol 05 (02) ◽  
pp. e152-e154
Author(s):  
Thomas Lecompte ◽  
Michael Hardy ◽  
Isabelle Michaux ◽  
Alain Dive ◽  
François Mullier

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