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Fulltext Desmoplastic Fibroma of the Mandible: A Case Without Recurrence After Enucleation

Zainuddin NI, Chin Kai L, Lim D, Wm T

Cureus, 2023 Jul;15(7):e42213.
PMID: 37602060 DOI: 10.7759/cureus.42213

Desmoplastic fibroma (DF) is a rare, benign, yet locally aggressive bone tumor. It frequently affects the facial bones, and the mandible is the most commonly affected site. Treatment of choice is the removal of the tumor with resection of surrounding bone due to its aggressive behavior. We report a case of DF where the tumor showed resolution and almost complete bone deposition following enucleation. Although DF has a high recurrence rate, the patient remains disease-free 31 months post-surgery.
Evaluating the efficacy of OralDETECT training: Face-to-face versus online delivery in dental education

Ramanathan A, Zaini ZM, Ghani WMN, Wong GR, Zainuddin NI, Yang YH, et al.

Oral Dis, 2024 Mar 15.
PMID: 38488212 DOI: 10.1111/odi.14927

OBJECTIVE: This study evaluated the effectiveness of face-to-face (F2F) and online OralDETECT training programme in enhancing early detection skills for oral cancer.
METHODS: A total of 328 final-year dental students were trained across six cohorts. Three cohorts (175 students) received F2F training from the academic years 2016/2017 to 2018/2019, and the remaining three (153 students) underwent online training during the Covid-19 pandemic from 2019/2020 to 2021/2022. Participant scores were analysed using the Wilcoxon signed rank test, the Mann-Whitney test, Cohen's d effect size, and multiple linear regression.
RESULTS: Both F2F and online training showed increases in mean scores from pre-test to post-test 3: from 67.66 ± 11.81 to 92.06 ± 5.27 and 75.89 ± 11.03 to 90.95 ± 5.22, respectively. Comparison between F2F and online methods revealed significant differences in mean scores with large effect sizes at the pre-test stage (p
Fulltext Sequencing Batch Integrated Fixed-Film Activated Sludge Membrane Process for Treatment of Tapioca Processing Wastewater

Zainuddin NI, Bilad MR, Marbelia L, Budhijanto W, Arahman N, Fahrina A, et al.

Membranes (Basel), 2021 Nov 15;11(11).
PMID: 34832104 DOI: 10.3390/membranes11110875

Tapioca processing industries are very popular in the rural community to produce a variety of foods as the end products. Due to their small scales and scattered locations, they require robust modular systems to operate at low capacity with minimum supervision. This study explores the application of a novel sequencing batch-integrated fixed-film activated sludge membrane (SB-IFASM) process to treat tapioca processing wastewater for reuse purposes. The SB-IFASM employed a gravity-driven system and utilizes biofilm to enhance biodegradation without requiring membrane cleaning. The SB-IFASM utilizes the biofilm as a secondary biodegradation stage to enhance the permeate quality applicable for reuse. A lab-scale SB-IFASM was developed, preliminarily assessed, and used to treat synthetic tapioca processing industry wastewater. The results of short-term filtration tests showed the significant impact of hydrostatic pressure on membrane compaction and instant cake layer formation. Increasing the pressure from 2.2 to 10 kPa lowered the permeability of clean water and activated sludge from 720 to 425 and from 110 to 50 L/m2·h bar, respectively. The unsteady-state operation of the SB-IFASM showed the prominent role of the bio-cake in removing the organics reaching the permeate quality suitable for reuse. High COD removals of 63-98% demonstrated the prominence contribution of the biofilm in enhancing biological performance and ultimate COD removals of >93% make it very attractive for application in small-scale tapioca processing industries. However, the biological ecosystem was unstable, as shown by foaming that deteriorated permeability and was detrimental to the organic removal. Further developments are still required, particularly to address the biological stability and low permeability.

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