Worldwide Research Trends for Chelates in Animal Science: A Bibliometric Analysis.

The purpose of this study was to look at research trends in the application of CTM in animal nutrition in order to identify current and emerging challenges, as well as to examine the intellectual structure of the subject. The intellectual structure of CTM was examined using keyword and reference analysis. The research community includes all research and review articles published in journals indexed in the Web of Science database during the years 1990-2022. The results showed that the terms zinc, co-occurring 331 times, performance (324 times), and copper 216 (times) were the main and hotspots of research in the field of chelate. The data suggest that the most important keywords during the study period were zinc, copper, pig, bovine, metabolism, and bioavailability. The terms health, muscle, beef, trace elements, and dietary supplements represent emerging topics in CTM, as research began to focus on these areas during the years 2017-2022. The country with the greatest number of published articles was the United States of America. This bibliometric analysis showed that countries are focusing on the effects of CTM on the health and musculature of cattle through dietary supplementation with trace elements. According to the identified hot and emerging topics, this research can serve as a roadmap for a global comprehensive scientific plan and policy.

The Association Between Facial Proportions and Patient Satisfaction After Rhinoplasty: A Prospective Study.

HYPOTHESIS: Rhinoplasty is one of the most common aesthetic surgeries. The aim of the study was to evaluate facial proportions and patient satisfaction with the appearance of their nose after rhinoplasty compared to preoperatively. METHODS: This cross-sectional study was conducted at Islamic Azad University, Mashhad Branch. Eighty-two candidates with indications for primary cosmetic rhinoplasty were selected. Facial proportions and patient satisfaction with their nasal appearance were evaluated before and 6 months after rhinoplasty. Patient satisfaction was assessed using the Rhinoplasty Outcome Evaluation questionnaire. RESULTS: Eighty-two patients referred for cosmetic rhinoplasty (13.4% men and 86.6% women) with a mean age of 28.5 (6.4) years underwent open rhinoplasty and were evaluated. Facial proportions, including nasofrontal, nasolabial, and nasomental ratios increased significantly, while the nasofacial ratio, nasal tip projection, columellar show, alar base, and nasal length reduced significantly after rhinoplasty (P < .05). Furthermore, patient satisfaction with the appearance of their nose increased significantly after surgery (P < .001). CONCLUSION: All of the facial proportions changed significantly following rhinoplasty. Although patient satisfaction with nose appearance increases significantly after the operation, there is no significant association between patient satisfaction and facial proportions. As beauty is a subjective, relative and qualitative issue, facial proportions may not be a proper tool to determine facial beauty and predict the satisfaction rate following rhinoplasty.

HYPOTHÈSE: La rhinoplastie est l'une des chirurgies esthétiques les plus courantes. La présente étude visait à évaluer les proportions faciales et la satisfaction des patients face à l'apparence de leur nez après la rhinoplastie et les comparer à la situation préopératoire. MÉTHODOLOGIE: Les chercheurs ont réalisé la présente étude transversale à l'antenne de Mechhed de l'université islamique Azad; ils ont sélectionné 82 candidats à une rhinoplastie esthétique primaire. Ils ont évalué les proportions faciales et la satisfaction des patients face à l'apparence de leur nez avant leur rhinoplastie et six mois après l'intervention. Ils ont évalué la satisfaction des patients à l'aide du questionnaire d'évaluation des résultats de la rhinoplastie. RÉSULTATS: Les chercheurs ont évalué 82 personnes d'un âge moyen de 28,5±6,4 ans (13,4 % d'hommes et 86,6 % de femmes) qui ont subi une rhinoplastie esthétique ouverte. Leurs proportions faciales, y compris les ratios nez-front, nez-lèvres et nez-menton, ont augmenté sensiblement, alors que le ratio naso-facial, la projection de la pointe nasale, la columelle, la base du cartilage alaire et la longueur du nez ont plutôt diminué nettement après la rhinoplastie (P < .05). La satisfaction des patients envers les résultats de la rhinoplastie s'est également accrue de manière significative après l'opération (P < .001). CONCLUSION: Toutes les proportions faciales ont changé considérablement après la rhinoplastie. Même si la satisfaction des patients a beaucoup augmenté après l'opération, il n'y a pas d'association majeure entre cette satisfaction et les proportions faciales. Comme la beauté est subjective, relative et qualitative, les proportions faciales ne sont peut-être pas un outil convenable pour évaluer la beauté faciale et prédire le taux de satisfaction après une rhinoplastie.

In vitro evaluation of the sealing ability of three newly developed root canal sealers: A bacterial microleakage study.

BACKGROUND: The purpose of this study was to compare the sealing ability of MTA Fillapex, Apatite Root Canal Sealer and AH26 sealers. MATERIAL AND METHODS: The present in vitro study was carried out on 142 extracted single-rooted human mature teeth. The teeth were randomly divided into three experimental groups (n=44) and two control groups (n=5). Three root canal sealers were MTA Fillapex, Apatite Root Canal Sealer and AH26. The teeth in the control groups were either filled with no sealer or made completely impermeable. The root canals were prepared and obturated with gutta-percha and one of the sealers. The teeth were sterilized with ethylene oxide gas prior to the bacterial leakage assessment using Enterococcus faecalis. Leakage was evaluated every 24 hours for 90 days. Data were analyzed with descriptive statistical methods and chi-squared test. If the data were significant, a proper post hoc test was used. Statistical significance was set at P<0.05. RESULTS: The positive control specimens exhibited total bacterial penetration whilst the negative control specimens showed no evidence of bacterial penetration. At the end of the study, the analysis of microleakage with chi-squared test showed no significant differences between the experimental groups (P<0.05). The results of chi-squared test analyzing the pair-wise differences between the groups considering the numerical values for leakage day indicated the lowest leakage with AH26 and the highest with Apatite root sealer. CONCLUSIONS: According to the results of the present study, sealing ability of AH26 was significantly higher than that of MTA Fillapex and Apatite Root Canal Sealer. Key words:Mineral Trioxide aggregate, root canal obturation, dental seal.