Awake teeth grinding in participants with canine guidance or group function: Effect on diaphragm EMG activity, heart rate, and oxygen saturation

CRANIO® ◽  
2019 ◽  
Vol 38 (6) ◽  
pp. 412-418
Author(s):  
Saúl Valenzuela ◽  
Rodolfo Miralles ◽  
María Ignacia Muñoz ◽  
Hugo Santander ◽  
Claudia Zúñiga ◽  
...  
2021 ◽  
Vol 15 (4) ◽  
pp. 232-238
Author(s):  
Nathália de Oliveira Domingos ◽  
Roberto Bernardino Júnior ◽  
Patrícia Teixeira de Carvalho Gaspar ◽  
Frederico Balbino Lizardo ◽  
César Ferreira Amorim ◽  
...  

Background. There is no general consensus in restorative dentistry about which lateral guidance should be established. Some studies have shown that canine guidance decreases the tension of masticatory muscles. Others have reported that group function might achieve a better physiologic distribution of occlusal forces. Also, some reports have shown that both guidances are equally acceptable. Despite all discussions, clinical evidence of one guidance being superior to another is limited. Thus, this study aimed to analyze the electromyographic (EMG) activity of masseter muscles in individuals with group function and canine guidance. Methods. Twenty volunteers of both genders, aged 20-25, were divided into two groups: GF (group function guidance, n=10) and CA (canine guidance, n=10). EMG activity of masseters was captured using surface electrodes during habitual maximum intercuspation (HMI) and right and left lateral jaw movements and recorded using EMG amplitude values (RMS – root means square). Student’s t-test was used to compare mean RMS values between the groups and lateral movements in each group. Results. During HMI, there was no difference in masseter EMG activity between the groups. Both masseters showed higher activity in group GF only on the right side during lateral movements, while the left masseter exhibited higher activity on the nonworking side in both groups. The activity of both masseters distributed by tooth was higher in group CA. Conclusion. During tooth restorative procedures, any guidance is acceptable considering HMI. However, group function guidance is more favorable during lateral movements due to greater dissipation of occlusal pressures.


CRANIO® ◽  
2012 ◽  
Vol 30 (3) ◽  
pp. 209-217 ◽  
Author(s):  
Saúl Valenzuela ◽  
Constanza Portus ◽  
Rodolfo Miralles ◽  
María José Campillo ◽  
Hugo Santander ◽  
...  

2017 ◽  
Vol 5 (3) ◽  
pp. 259
Author(s):  
Shireen H. Ramadhan ◽  
Shamil K. Talal ◽  
Wasfiya A. Moner

Tobacco smoke is enormously harmful to human health, there’s no safe way to smoke. The primary objective of this study is to analyze the role of tobacco smoke compounds and their ability to damage the cardiovascular system and, in particular, to interfere with blood pressure (Brachial and radial pressure), heart rate and partly on the percentage blood Oxygen saturation. A new device has been manufactured which is unique for measuring the level of smoke, to obtained privies readings, the device had fixed to the first reference level آ and starting up from it. The effect of smoking has been studied on (26) male passive (26) active smoker volunteer, (14) female passive and (14) female active smoker participants. The results has been showed that the blood pressure and heart rate has been increased with increasing the number of cigarettes in both genders for passive and active smokers. However, this effect for male was more pronounced comparing with females for passive and active smokers. In the case of oxygen saturation concentration percentage, for males the change of oxygen concentration percentage was not stable. In other words, it was fluctuated with the number of cigarettes. But for females the oxygen concentration was decreased but not too much. This means that this effect was not pronounced. this study found آ that the most pronounced effect has been shown by male’s comparison to females for both passive and active smokers. As well as in nonsmoker’s males, the relation between heart rate and smoke level is inversely proportional. While in male and female smokers and female nonsmokers the relation is proportional. In all cases the relation between the smoke level and time of smoking is inversely proportional. Finally males& females are affected differently by tobacco use; the sensitivities to smoke for males are higher than in females for passive and active smokers in both brachial and radial blood pressure measurement.


2021 ◽  
Vol 7 (10) ◽  
pp. eabe3793
Author(s):  
Go Inamori ◽  
Umihiro Kamoto ◽  
Fumika Nakamura ◽  
Yutaka Isoda ◽  
Azusa Uozumi ◽  
...  

Neonatal jaundice occurs in >80% of newborns in the first week of life owing to physiological hyperbilirubinemia. Severe hyperbilirubinemia could cause brain damage owing to its neurotoxicity, a state commonly known as kernicterus. Therefore, periodic bilirubin monitoring is essential to identify infants at-risk and to initiate treatment including phototherapy. However, devices for continuous measurements of bilirubin have not been developed yet. Here, we established a wearable transcutaneous bilirubinometer that also has oxygen saturation (SpO2) and heart rate (HR) sensing functionalities. Clinical experiments with neonates demonstrated the possibility of simultaneous detection of bilirubin, SpO2, and HR. Moreover, our device could consistently measure bilirubin during phototherapy. These results demonstrate the potential for development of a combined treatment approach with an automatic link via the wearable bilirubinometer and phototherapy device for optimization of the treatment of neonatal jaundice.


2008 ◽  
Vol 14 (3) ◽  
pp. 353-361
Author(s):  
Geraldo Andrade Capuchinho-Júnior ◽  
Ricardo Marques Dias ◽  
Sônia Regina da Silva de Carvalho

Author(s):  
G Sidhartha

Abstract: In recent times, we have realized the importance of vital signs such as Oxygen saturation and heart rate i.e beats per minute (BPM) due to the covid-19 situation worldwide. SpO2 and BPM are being used as preliminary indicators for testing a person’s health, the drop in the oxygen saturation is perceived as one of the symptoms of a person suffering from coronavirus. Oximeters are portable devices that are used to measure the SpO2 and BPM of a person. Timely measurements of oxygen saturation can aid in taking preventive measures. This paper discusses the construction and development of an IoT-based pulse oximeter that is capable of transmitting the reading obtained to any remote location wirelessly. The proposed system uses Arduino as the microcontroller which is used for signal processing and Esp-01 as the Wifi platform to enable remote data transmission. The data is communicated remotely through Blynk mobile application. This project is aimed at reducing the manual effort undergone in regularly updating the oxygen saturation to the doctor, in the case of a person undergoing home treatment. Though an oximeter is not a screening te st, it is a primary indicator of a person’s health. Keywords: Heart rate, SpO2, IoT, Arduino, BLYNK server, Red, IR.


QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Eslam Ahmed Mohamed Elsamahi ◽  
Bassem P Ghobrail ◽  
Ghada Mohamed Samir ◽  
Hany Victor Zaki

Abstract Background In the modern medicine, upper gastrointestinal endoscopy has become a definitive tool for diagnosis and management of many diseases. It is usually preformed in separate unit as day-case procedure and for outpatient clinic. The search of a safe and effective sedation for these patients is still an open topic. Objective The aim of the study is to compare the use of propofol and dexmedetomedine in upper GI endoscopy regarding the hemodynamics, sedative effect and the patient satisfaction. Methods Double – blinded, randomized controlled trial with allocation ratio 1:1 arranged in two parallel groups. This study was conducted in the endoscopy unit of Ainshams University Hospital, Cairo, Egypt within a period of 6 months started from April 2019. All recruited patients were adults undergoing upper gastrointestinal endoscopy. They were included in the study according to the following criteria: Age 21-60 years; elective procedures under general anesthesia with patients who completed eight hours of fasting; and physical Status: ASA I and II Patients after taking written and informed consent. Results Concerning the results of the study, there was no statistically significant difference considering the heart rate in relation to base line readings. The changes of heart rate between the two groups were significantly different with dexmedetomidine associated with lower readings. Respiratory rate and oxygen saturation were insignificantly different in both groups. Time of induction was significantly shorter in propofol than dexmedetomidine (P < 0.001) and time to reach full recovery identified by modified Alderete’s score 10/10 was significantly shorter in dexmedetomidine than propofol (P < 0.014). There was a significant difference between the two dugs concerning the patients and endoscopists satisfaction. The patients were more satisfied with propofol (P 0.047), while the endoscopists were more satisfied with dexmedetomidine (P 0.034). Conclusion Dexmedetomidine and propofol are equally effective and safe to provide enough sedation for upper gastrointestinal endoscopy in a day-case manner. Advantages of dexmedetomidine were providing analgesic effect, rapid recovery from sedation and stability of respiratory rate and oxygen saturation. However, there were some disadvantages such as the bradycardia and patient dissatisfaction although the bradycardia can be utilized in cardiac patients as a safety factor against myocardial ischemia. Other point noticed that using dexmedetomidine for sedation was more costly than propofol and requires the usage of a syringe pump for accurate dosing. On the contrary, propofol is cheap and available in all centers with rabid onset of induction but it causes hypotension and respiratory depression which might be risky in cardiac patients.


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