scholarly journals Anatomical Evaluation of Root and Root Canal Configuration of Permanent Maxillary Dentition in the Population of the Kingdom of Saudi Arabia

2022 ◽  
Vol 2022 ◽  
pp. 1-12
Author(s):  
Mohammed Mashyakhy ◽  
Mohammed Awawdeh ◽  
Abdulaziz Abu-Melha ◽  
Bushra Alotaibi ◽  
Nada AlTuwaijri ◽  
...  
Keyword(s):  
Systematic Review ◽  
Saudi Arabia ◽  
Sample Size ◽  
Root Canal ◽  
Case Series ◽  
Deciduous Teeth ◽  
Large Sample Size ◽  
International Studies ◽  
Type I ◽  
Kingdom Of Saudi Arabia

Aim. This study is aimed at combining the sample sizes of all studies on permanent maxillary teeth conducted in different regions of the Kingdom of Saudi Arabia (KSA) to obtain a large sample size that represents the population of the KSA. The outcome of these combined studies is compared with international studies in terms of the number of roots, number of canals, and canal configurations on the basis of Vertucci’s classification. Methodology. The studies were systematically reviewed using the Preferred Reporting Items for Systematic Review and Meta-analysis chart. Studies were included in the analysis if they were conducted in the KSA, involved permanent human maxillary teeth, and had a sample of more than 10 teeth (power). By contrast, studies were excluded if they involved deciduous teeth in the sample size, investigated nonhuman teeth, were not conducted in the KSA, and were case reports, case series, review studies, and anomalies. Relevant literature was searched from PubMed, Scopus, Web of Science, Embase, Cochrane, and Direct Science by two calibrated teams, starting in August 2020, without time limits or language restrictions. Results. The database searches and cross-referencing identified a total of 19 relevant studies. All maxillary canines ( N = 1,018 ) had one root, whereas 98.4% had one canal and 98.3% had Vertucci type I. Moreover, 63.2% of the maxillary first premolars had two roots, and 91.4% had two canals. The most common Vertucci root canal configuration was type IV (64.6%). The maxillary second premolars mostly had one root (84.4%) and one canal (50.4%). The most common canal configuration was Vertucci type I (47.1%). The majority of maxillary first molars had three roots (98.9%), 48.7% of which had three canals, and 46.4% had four canals. The most prevalent feature of the canal morphology of mesiobuccal roots was Vertucci type II (35.3%). The investigated maxillary second molars had three roots, 88.0% of which had three canals. Conclusion. This systematic review represents the Saudi population since samples were combined from different studies from different regions of the country. Variations in findings were observed in the same group of teeth from different regions and the same region, while the overall combined samples results fell within the range of other international studies.

scholarly journals Somatic Acupoint Stimulation for Cancer-Related Sleep Disturbance: A Systematic Review of Randomized Controlled Trials

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Xian-Liang Liu ◽  
Hui Lin Cheng ◽  
Simon Moss ◽  
Carol Chunfeng Wang ◽  
Catherine Turner ◽  
...  
Keyword(s):  
Systematic Review ◽  
Sleep Disturbance ◽  
Sample Size ◽  
Methodological Quality ◽  
Outcome Measurement ◽  
Small Sample ◽  
Large Sample Size ◽  
Intervention Protocol ◽  
Acupoint Stimulation

Aim. The aim of this systematic review was to analyze and synthesize available evidence for the effects of somatic acupoint stimulation (SAS) on cancer-related sleep disturbance in adults with cancer. Methods. Nine databases and four clinical trial registries were searched from their inception to July 2019 to identify potential articles and registered trials. Two authors independently extracted data and appraised the methodological quality of the included studies. The included studies could not be subjected to meta-analysis due to the significant variations in SAS intervention protocols and outcome measurement instruments. This systematic review therefore reported the results of the included trials narratively. Results. Seven studies were identified, which involved 906 cancer patients. SAS protocols varied across trials without an optimal evidence-based standard intervention protocol to manage cancer-related sleep disturbance. Sanyinjiao (SP6) was the most commonly selected acupoint. Manual acupuncture was typically 15–30 min in duration and was conducted once a day or once a week for a period of 1–5 weeks, whereas self-administered acupressure was typically 1–3 min in duration per point and was conducted once a day, such as during night time before going to bed, for a period of 1–5 months. The results indicated that SAS could potentially relieve cancer-related sleep disturbance and improve quality of life. Mild adverse effects were reported in three of the included studies, but none of them performed a causality analysis to clarify the association between the reported adverse events and the intervention. Conclusions. This systematic review showed that SAS is a useful approach to relieving cancer-related sleep disturbance. However, research evidence on SAS for managing cancer-related sleep disturbance has not been fully conclusive due to the limited number of existing clinical studies with relatively small sample size and suboptimal methodological quality. Clinical trials with large sample size and robust methodology are warranted in future research.

scholarly journals Food waste posing a serious threat to sustainability in the Kingdom of Saudi Arabia – A systematic review

2019 ◽  
Vol 26 (7) ◽  
pp. 1743-1752 ◽  
Author(s):  
Mirza B. Baig ◽  
Khodran H. Al-Zahrani ◽  
Felicitas Schneider ◽  
Gary S. Straquadine ◽  
Marie Mourad
Keyword(s):  
Systematic Review ◽  
Saudi Arabia ◽  
Food Waste ◽  
Kingdom Of Saudi Arabia

scholarly journals Right temporal variant frontotemporal dementia is pathologically heterogeneous: a case-series and a systematic review

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Hulya Ulugut ◽  
Anke A. Dijkstra ◽  
Marta Scarioni ◽  
Frederik Barkhof ◽  
Philip Scheltens ◽  
...  
Keyword(s):  
Systematic Review ◽  
Frontotemporal Dementia ◽  
Case Series ◽  
Primary Progressive Aphasia ◽  
General Assumption ◽  
Large Sample Size ◽  
Pathological Evaluation ◽  
Type C ◽  
The Right ◽  
Underlying Pathology

AbstractAlthough the right temporal variant frontotemporal dementia (rtvFTD) is characterised by distinct clinical and radiological features, its underlying histopathology remains elusive. Being considered a right-sided variant of semantic variant primary progressive aphasia (svPPA), TDP-43 type C pathology has been linked to the syndrome, but this has not been studied in detail in large cohorts. In this case report and systematic review, we report the autopsy results of five subjects diagnosed with rtvFTD from our cohort and 44 single rtvFTD subjects from the literature. Macroscopic pathological evaluation of the combined results revealed that rtvFTD demonstrated either a frontotemporal or temporal evolution, even if the degeneration started in the right temporal lobe initially. FTLD-TDP type C was the most common underlying pathology in rtvFTD, however, in 64% of rtvFTD, other underlying pathologies than FTLD-TDP type C were present, such as Tau-MAPT and FTLD-TDP type A and B. Additionally, accompanying motor neuron or corticospinal tract degeneration was observed in 28% of rtvFTD patients. Our results show that in contrast to the general assumption, rtvFTD might not be a pure FTLD-TDP type C disorder, unlike its left temporal counterpart svPPA. Large sample size pathological studies are warranted to understand the diverse pathologies of the right and left temporal variants of frontotemporal dementia.

scholarly journals Risk factors for post-ERCP pancreatitis: a systematic review of clinical trials with a large sample size in the past 10 years

2014 ◽  
Vol 19 (1) ◽  
pp. 26 ◽  
Author(s):  
Jian-Jun Chen ◽  
Xi-Mo Wang ◽  
Xing-Qiang Liu ◽  
Wen Li ◽  
Mo Dong ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Clinical Trials ◽  
Sample Size ◽  
Large Sample Size ◽  
Large Sample ◽  
The Past

scholarly journals Modeling of IDF curves for stormwater design in Makkah Al Mukarramah region, The Kingdom of Saudi Arabia

2018 ◽  
Vol 10 (1) ◽  
pp. 954-969 ◽  
Author(s):  
Hatem A. Ewea ◽  
Amro M. Elfeki ◽  
Jarbou A. Bahrawi ◽  
Nassir S. Al-Amri
Keyword(s):  
Saudi Arabia ◽  
Probability Distributions ◽  
Daily Rainfall ◽  
Type I ◽  
Kingdom Of Saudi Arabia ◽  
Hourly Data ◽  
Idf Curves ◽  
Intensity Duration Frequency ◽  
Negative Impacts

Abstract Reducing the negative impacts of flooding in Makkah AL Mukarramah region in the Kingdom of Saudi Arabia (KSA) is of utmost importance. In the last decade, there are huge mega infrastructure projects in KSA in general and in Makkah AL Mukarramah region in particular. These projects require adequate stormwater drainage systems. Since, the availability of rainfall and runoff data are scarce, engineers and hydrologists rely on models developed in temperature regions that are not hydrologically similar from temperate regions. This leads to inaccurate designs of stormwater facilities. Therefore, deveoping in situ Intensity-Duration-Frequency (IDF) curves is a must in this arid region. This paper aims at modeling IDF curves for Makkah Al-Mukarramah region. Maximum annual daily rainfall series of 80 storms (with sub-hourly and hourly data) from four stations are investigated through six different probability distributions. Consequently, rainfall depth-duration-frequency models and curves are derived. Results revealed that the Gumbel Type I is the optimal one. Thus, it is used to deduce the IDF curves and relations for each station and for the region as a whole. The R2 value for fitting power-lawfunction (i = a Db) to the data is very high for the IDF parameters. The R2 for the coefficient parameter, a, is between 0.9999 and 0.9988 while it ranges between 0.8754 and 0.8039 for exponent parameter, b. High correlation coefficient (more than 0.95) has been obtained. The resulting IDF models are strongly recommended for rigorous, effective and safe design of the stormwater systems in Makkah Al-Mukarramah region.

scholarly journals A Systematic Review of Root Canal Filling Materials for Deciduous Teeth: Is There an Alternative for Zinc Oxide-Eugenol?

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Fernanda Barja-Fidalgo ◽  
Michele Moutinho-Ribeiro ◽  
Maria Angelina Amorim Oliveira ◽  
Branca Heloísa de Oliveira
Keyword(s):  
Systematic Review ◽  
Zinc Oxide ◽  
Calcium Hydroxide ◽  
Root Canal ◽  
Convincing Evidence ◽  
The Other ◽  
Deciduous Teeth ◽  
Success Rates ◽  
Root Canal Filling ◽  
Zinc Oxide Eugenol

The aim of this systematic review was to determine whether there is a root canal filling for deciduous teeth equally or more effective than zinc oxide-eugenol cement (ZOE). Six clinical trials selected for inclusion were independently reviewed by two researchers. Only two showed statistically significant different success rates between the test and the control groups. One found that an iodoform paste with calcium hydroxide () performed better than ZOE, and the other found that ZOE performed similarly to . The other four studies compared ZOE with an iodoform paste (IP), a calcium hydroxide cement , or . In these trials, the success rates in the ZOE groups were slightly lower than in the other groups. There seems to be no convincing evidence to support the superiority of any material over ZOE, and both ZOE and appear to be suitable as root canal fillings for deciduous teeth.

scholarly journals Prevalence of malocclusion among children of the Kingdom of Saudi Arabia –A systematic review and meta-analysis

2021 ◽  
Author(s):  
Raghu Devanna ◽  
Nayef H Felemban ◽  
Yousef Althomali ◽  
Prasnath M Battepati ◽  
Ahmed Ali Alfawzan ◽  
...  
Keyword(s):  
Systematic Review ◽  
Saudi Arabia ◽  
Meta Analysis ◽  
Kingdom Of Saudi Arabia
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