Mohammed Nasser Alhajj

Thamar University

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Esam Halboub

Jazan University

Sadeq Ali Al‐Maweri

Qatar University

Abdullah G. Amran

Thamar University

Nadia Khalifa

University of Sharjah

Zaihan Ariffin

Hospital Universiti Sains Malaysia

Ibrahim Ismail

Zagazig University

AČ

Asjâ Čelebić

University of Zagreb

Mohammed Sultan Al-Ak’hali

Jazan University

Yanti Johari

Hospital Universiti Sains Malaysia

Ali H. Murad

University of Al-Qadisiyah

Cooperative Institutions

University of KwaZulu-Natal

351

University of Cape Town

343

Cairo University

336

Groote Schuur Hospital

335

National Hospital Niamey

274

Population Health Research Institute

241

McMaster University

230

Kwame Nkrumah University of Science and Technology

227

Queen Mary University of London

Engineering Associates (United States)

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Quality and Readability of Web-based Arabic Health Information on Denture Hygiene: An Infodemiology Study

The Journal of Contemporary Dental Practice (2020)

Mohammed Nasser Alhajj Mohammed Mashyakhy Zaihan Ariffin Zuryati Ab‐Ghani Yanti Johari

Aim: This study aimed to assess the quality and readability of the available health information on the net regarding denture hygiene.Materials and methods: Three search engines (Google, Yahoo!, and Bing) were searched.The first 20 consecutive websites from each engine were obtained and checked for eligibility.For the quality of the websites, the Health on the Net Foundation Code of Conduct (HONcode), the DISCERN tool, the Journal of the American Medical Association (JAMA) Benchmarks, and Google PageRank were used for the assessment of the included websites.For readability, an online web tool was used, including well-known analyzing indices [Flesch Kincaid grade level (FKGL), Simple Measure of Gobbledygook (SMOG), and Flesch Reading Ease (FRE)].The acceptable readability level was set to be ≥80.0 for the FRE and <7 for the FKGL and SMOG.The data were presented in frequencies and percentages.Results: Out of the 60 screened websites, 14 websites were eligible for analysis.There was only one (7.1%)website that had the HONcode seal.The mean score of all websites based on the DISCERN tool was 29.6 ± 12.1, with no website achieved the high score (≥65).Only one (7.1%)website scored >5 based on Google PageRank.Regarding JAMA benchmarks, all websites achieved a mean score of 2.57 ± 1.1.The mean grade level based on the FKGL was 8.4 ± 6.3.All websites had a score of <7 according to the SMOG index.The mean score of the readability ease index was 90.5 ± 16.4. Conclusion:Most of the dental health information on denture hygiene available on the Arabic websites did not have the required level of quality, regardless of being readable and comprehensible by most of the general people.Clinical significance: Directing the patients to the appropriate websites related to their cases is the responsibility of the dentists.

Information Quality

10.5005/jp-journals-10024-2918

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Citations (20)

Influence of Khat Extract (Catha edulis) on Corrosion Resistance of Co-Cr Dental Alloys

Brazilian Dental Science (2021)

Rassam Al-Subari Nadia Merzouk Nasser Kabak Abdullah Guenbour Sadeq Ali Al‐Maweri

Objective: The aim of this experimental study was to assess the effect of khat extract with different concentrations on the corrosion resistance of cobalt-chromium (Co-Cr) dental alloys used for removable denture. Material and Methods: The corrosion resistance of three Co-Cr alloys (Neobond II®, Kera 501® and PD Casta H®) was evaluated in artificial saliva in presence of three different concentrations of khat extracts. Fusayama-Meyer artificial saliva was used as a reference solution. The corrosion properties of the alloys were analyzed using potentiodynamic polarization, electrochemical impedance spectroscopy and surface analysis. The data was presented in means, standard deviations, and related figures. Comparison between the different concentrations was done using 1-way ANOVA test. The surface analysis was performed using scanning electron microscopy (SEM). Results: the results showed that the corrosion resistance of the three alloys tested (Neobond II®, Kera 501® and PD Casta H®) decreased in artificial saliva containing khat extract compared with that of the reference solution. Additionally, the corrosion resistance of the three Co-Cr dental alloys decreased by increasing the concentration of khat extract. Furthermore, the results indicate that Neobond II® alloy showed the least corrosion resistance compared with that of Kera 501® and PD Casta H® alloys. Conclusion: Khat extract with different concentrations had negative impact on the corrosion resistance of Cr-Co alloys. More in-vivo studies are highly recommended to confirm the results of the present study Keywords Khat; Catha edulis; Partial denture; Corrosion resistance.

Khat

10.14295/bds.2021.v24i2.2248

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Maternal and neonatal outcomes after caesarean delivery in the African Surgical Outcomes Study: a 7-day prospective observational cohort study

The Lancet Global Health (2019)

David G. Bishop Robert A. Dyer Salome Maswime Reitze Rodseth Dominique van Dyk

Maternal and neonatal mortality is high in Africa, but few large, prospective studies have been done to investigate the risk factors associated with these poor maternal and neonatal outcomes.A 7-day, international, prospective, observational cohort study was done in patients having caesarean delivery in 183 hospitals across 22 countries in Africa. The inclusion criteria were all consecutive patients (aged ≥18 years) admitted to participating centres having elective and non-elective caesarean delivery during the 7-day study cohort period. To ensure a representative sample, each hospital had to provide data for 90% of the eligible patients during the recruitment week. The primary outcome was in-hospital maternal mortality and complications, which were assessed by local investigators. The study was registered on the South African National Health Research Database, number KZ_2015RP7_22, and on ClinicalTrials.gov, number NCT03044899.Between February, 2016, and May, 2016, 3792 patients were recruited from hospitals across Africa. 3685 were included in the postoperative complications analysis (107 missing data) and 3684 were included in the maternal mortality analysis (108 missing data). These hospitals had a combined number of specialist surgeons, obstetricians, and anaesthetists totalling 0·7 per 100 000 population (IQR 0·2-2·0). Maternal mortality was 20 (0·5%) of 3684 patients (95% CI 0·3-0·8). Complications occurred in 633 (17·4%) of 3636 mothers (16·2-18·6), which were predominantly severe intraoperative and postoperative bleeding (136 [3·8%] of 3612 mothers). Maternal mortality was independently associated with a preoperative presentation of placenta praevia, placental abruption, ruptured uterus, antepartum haemorrhage (odds ratio 4·47 [95% CI 1·46-13·65]), and perioperative severe obstetric haemorrhage (5·87 [1·99-17·34]) or anaesthesia complications (11·47 (1·20-109·20]). Neonatal mortality was 153 (4·4%) of 3506 infants (95% CI 3·7-5·0).Maternal mortality after caesarean delivery in Africa is 50 times higher than that of high-income countries and is driven by peripartum haemorrhage and anaesthesia complications. Neonatal mortality is double the global average. Early identification and appropriate management of mothers at risk of peripartum haemorrhage might improve maternal and neonatal outcomes in Africa.Medical Research Council of South Africa.

Placental abruption

10.1016/s2214-109x(19)30036-1

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Citations (162)

Risk Factors Associated with Periodontal Diseases among Yemeni Adult Patients

Cumhuriyet Dental Journal (2022)

Abdullah G. Amran Mohammed Nasser Alhajj Zaihan Ariffin Yanti Johari Abeer AL-SOSWA

Objectives: This study aimed to investigate the possible risk factors associated with periodontal diseases among adult dental patients in Yemen. Methods: The study population comprised of 805 patients attending the teaching dental hospital in Dhamar city, Yemen. The first part of investigation was interview including age, gender, systemic diseases, pregnancy (for women), as well as tooth brushing, smoking, and Qat chewing habits and dentist interval visits. The second part was clinical examination including the periodontal parameters. Data were analyzed and presented in terms frequencies and percentages or means and standard deviations, as appropriate. Chi-squared test was used for associations and Mann-Whitney U test was used for differences. Regression analysis was utilized for the determinants of the periodontal disease. A P-value < 0.05 was considered significant. Results: The bivariate analyses revealed significant differences (P< 0.05) between the independent variables (proposed risk factors) groups in relation to the periodontal parameters except for systemic disease in relation to GI and BI, visiting dentist in relation to CI, BI, and GR, and pregnancy in relation to PI, GI, CI, and BI (P> 0.05). The regression analyses revealed that the age, smoking, and brushing teeth are significant (P< 0.05) determinants for all periodontal parameters. Whereas, systemic disease was a significant determinant for GR, and sex for BI. Conclusions: Age, brushing teeth and smoking are the significant determinants of periodontal health. Education about the side effects of bad habits as well as maintaining good oral hygiene should be implemented.

Tooth brushing

Periodontal examination

Population study

10.7126/cumudj.981660

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An audit of root canal filling quality performed by undergraduate pre-clinical dental students, Yemen

BMC Medical Education (2019)

Mokhtar Saleh Al-anesi Mohammed M. AlKhawlani Abdulaziz A. Al‐Kheraif Abdulghani Ali Al-Basmi Mohammed Nasser Alhajj

Dental students are future dentists. Continuous assessment and improving of the educational curricula will ensure excellent academic performance of dental students and thus providing the community with the best treatment modalities. The aim of this study was to evaluate the root canal filling quality performed in extracted teeth by preclinical undergraduate Yemeni dental students.Root canal treatment was performed by undergraduate preclinical dental students on 331 extracted human teeth including 741 roots. The teeth were then collected and evaluated radiographically based on three criteria of quality (length, density, and taper). Cohen's Kappa test was used to assess the agreement between the examiners and Chi-squared test was used for the association between the study variables. The level of significant was set at α < 0.05.The results of the study revealed that the overall quality of roots canals fillings was poor. However, more than half of the study sample (53.4%) had adequate length, 13.1% had adequate density, and 14.2% had adequate taper. Anterior as well as single-rooted teeth had significantly better quality than posterior and multi-rooted teeth, respectively. The root canal fillings quality mandibular teeth was better than of maxillary teeth with no significant difference (P > 0.05).The findings of the study emphasize the need of improving the endodontic course in the preclinical level and more advanced techniques and instruments should be incorporated.

10.1186/s12909-019-1798-1

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Citations (24)

Dimensional Accuracy of Alginate Impressions Using Different Methods of Disinfection With Varying Concentrations.

PubMed (2018)

Ghada Hassa Babiker Nadia Khalifa Mohammed Nasser Alhajj

This study investigated the effect of 1% and 5.25% of sodium hypochlorite (NaOCl) as spray and immersion solutions on the dimensional accuracy of an irreversible hydrocolloid impression material. Impressions of master models were taken using irreversible hydrocolloid impression material, which was then treated with NaOCl 1% or 5.25% solution, either by spaying or immersion, for 5 minutes, or not treated to act as control. The impressions were then poured with stone, and the dimensional accuracy was determined from the mean of six measurements taken between fixed points using a digital caliper. No significant dimensional changes of gypsum casts obtained from irreversible hydrocolloid impression material sprayed with NaOCl solution were observed, whereas significant change in dimensional accuracy occurred when the casts were immersed in NaOCl solution. Based on dimensional stability alone it would be more appropriate to disinfect irreversible hydrocolloid impression material by spraying it with NaOCl solution rather than immersing it.

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Sodium hypochlorite

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Citations (24)

Relationship Between Prosthodontic Treatment and Nutritional Status: A Review

Birat Journal of Health Sciences (2018)

Bishal Babu Basnet Indra Kumar Limbu Mohammed Nasser Alhajj Dinesh Rokaya

Pertinent literature search about changes or eﬀects of prosthodontic treatment on nutritional status was performed. The articles were electronically and hand searched in all available journals including research works, reviews, randomized controlled trials and systematic reviews. The information were obtained to answer the question whether denture therapy has a role in altering nutritional intake or not. Most articles agreed that the risk of malnutrition is elevated by being edentulous. However, there were contrasting results about improvement of nutrition by providing prosthodontic treatment. Thus, many authors have emphasized the role of nutritional counseling along with denture therapy for the beneﬁts of geriatric patients who undergo the inevitable process of being edentulous.BJHS 2018;3(1)5 : 385 - 389

10.3126/bjhs.v3i1.19768

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Psychometric Properties of the Croatian Language Version of the Dental Environment Stress Questionnaire on Dental Medicine Students

DOAJ (DOAJ: Directory of Open Access Journals) (2017)

Martina Laktić Krešimir Kuftinec Asjâ Čelebić Ines Kovačić Mohammed Nasser Alhajj

Croatian

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Psychometric Properties of the Croatian Language Version of the Dental Environment Stress Questionnaire on Dental Medicine Students

Acta Stomatologica Croatica (2017)

Martina Laktić Krešimir Kuftinec Asjâ Čelebić Ines Kovačić Mohammed Nasser Alhajj

SažetakSvrha: Razviti hrvatsku verziju Dental Environment Stress upitnika (DES) s 41 pitanjem za mjerenje razine stresa kod studenata dentalne medicine pretkliničkih i kliničkih godina studija te ispitati psihometrijska svojstva upitnika u hrvatskoj kulturološkoj sredini

Croatian

Dental education

Perceived Stress Scale

10.15644/asc51/3/2

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Citations (2)

Clinical Outcomes of Three versus Four Mini-Implants Retaining Mandibular Overdenture: A 5-Year Randomized Clinical Trial

Medicina (2023)

Asjâ Čelebić Ines Kovačić Nikola Petričević Mohammed Nasser Alhajj Jolanda Topić

Background and Objectives: Due to a lack of long-term clinical studies that would clarify whether the insertion of three mini-implants (MDIs) can be as successful treatment as the insertion of four MDIs for the retention of mandibular overdentures (ODs), this 5-year prospective cohort study was set up. Materials and Methods: Participants (n = 83) randomly received either four or three MDIs and a mandibular OD. Clinical examinations were performed at the baseline, as well as after one, three, and five years, respectively. A total of 73 participants (38 in the four-MDI and 35 in the three-MDI groups) partook in the study. The marginal bone level change, success and survival rates, and prosthodontic maintenance were assessed. Results: Repeated measures showed that the mean peri-implant bone loss increased progressively at a small amount over five years in both groups (four-MDI group = −0.36 ± 0.74; three-MDI group = −0.33 ± 0.27 mm; p < 0.05). However, an ANCOVA revealed no significant effects of the group (no significant difference between the three- and the four-MDI groups; F = 0.085; p = 0.771), gender (F = 0.023; p = 0.88), or covariate age (F = 1.95; p = 0.167) on the dependent variable: the 5-year MBL change. The success rate (together with successful survival) was 93.8% in the four-MDI group and 91.7% in the three-MDI group. The log-rank (Mantel–Cox) test revealed no significant differences between them (X2 = 0.373; p = 0.541). Conclusions: In patients with narrow ridges, the insertion of three MDIs in the mandible for overdenture retention can be equally as successful as the insertion of four MDIs.

Log-rank test

Repeated measures design

10.3390/medicina60010017

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Citations (7)