Libyan Medical Journal https://lmj.ly/index.php/ojs <p><strong>Libyan Medical Journal</strong> (LMJ) (<strong>ISSN</strong>:2079-1224), formerly known as <strong>Jamahiriya Medical Journal</strong> (JMJ), is an open access, peer-reviewed journal that encompasses all fundamental and clinical aspects of medical sciences, with an emphasis on the clinical and disease-oriented studies.</p> <p><strong>Scope</strong> of the journal includes: Medicine, nursing and allied health sciences, pharmacy, pathology, anatomy, pharmacology, toxicology, surgery and physiology, and other related fields. </p> <p>This journal is indexed in <a href="https://scholar.google.com/scholar?hl=en&amp;as_sdt=0%2C5&amp;q=Libyan+Medical+Journal%3A+Re-Appearance+and+Challenges&amp;btnG=">Google Scholar</a></p> <p> </p> <p><strong><em>Editoral Office in Charge</em></strong><br /><strong>Dr. Ahmed Atia</strong><br />libmedj@gmail.com <br />00218910737929</p> Libyan Board of Medical Specialties en-US Libyan Medical Journal 2079-1216 Assessment of Surface Roughness and Microhardness of Resin Composites after different Finishing and Polishing Procedures https://lmj.ly/index.php/ojs/article/view/33 <p>The aim of this in vitro study was to evaluate the influence of three different finishing and polishing (F&amp;P) procedures on the surface roughness and microhardness of four resin composite restorative materials. A total of 160 disc-shaped specimens (10 mm × 2 mm) were prepared in metal mold using four resin composites and stored in distilled water at 37˚C for 24 h. The specimens were then divided into four experimental groups (n=40) according to the type of resin composite. Gp1: Microhybrid composite (Dynamic plus), Gp2: Nanohybrid composite (Nexcomp), Gp3: Supernano composite (ESTELITE Σ QUICK), and Gp4: Nanoceramic composite (ZENIT). For each type of resin composite the forty specimens were further divided into four sub-groups (A, B, C, &amp; D) based on the type of finishing and polishing procedure as follow: A- Sandpaper, B- Fine diamond bur, C- Astropol cups and discs (two-step) F&amp;P system, and D- Sof-lex discs (four-step) F&amp;P system. Surface roughness measurements were made for all specimens using a USB digital surface profile gauge, and data were recorded using computer software (Elcomaster 2, Elcometer Instruments). The surface Microhardness of the specimens was measured using Digital Display Vickers Microhardness Tester. The obtained data statistically analyzed using SPSS software. Significant differences in surface roughness and microhardness were found according to the type of F&amp;P systems and resin composite (P&lt;0.05). The smoothest surface value was recorded for nanoceramic composite. The highest microhardness value was obtained with mi-crohybrid composite finished with the Soflex discs (four-step) F&amp;P systems. Based on the limitations of this in vitro study, the following conclusions were drawn. The surface roughness and microhardness of the tested resin composites were greatly influenced by the F&amp;P procedure. Among the tested composites, nanoceramic and supernano composites exhibited the lowest surface roughness, while the nanohybrid composite had the highest surface roughness when finished with the Soflex F&amp;P system. The microhybrid composite had the highest microhardness. The smoothest surface finish was achieved when using a fine diamond bur, particularly with the supernano and nanoceramic composites. One-step procedures showed the best results.</p> Rehab Akhlaif Mohamed Issa Hussein Al-Masmari Naeima Betamar Copyright (c) 2024 Libyan Medical Journal 2022-11-18 2022-11-18 1 9 Follicle-Stimulating Hormone and Age as Predictors Forpositive Sperm Retrieval in Patients with Azoospermia https://lmj.ly/index.php/ojs/article/view/19 <p>Azoospermia is the complete absence of sperm in the semen, one of the causes of infertility, affecting around 1% of the male population and 10-12% of the male with infertility. Follicle-stimulating Hormone [FSH] and age are commonly used predictors to estimate the outcome of sperm retrieval. However, the precision of the FSH level and age of patients as predictors for positive sperm retrieval is variable between studies. The purpose of this research was to investigate the effect of the patient’s age and FSH level on successful sperm retrieval. A pilot retrospective medical records review study was conducted. Sixty-eight infertile patients with azoospermia who underwent sperm retrieval procedures were included. Trans-epididymal sperm aspiration [TESA] was conducted on 35 azoospermic patients, and 33 patients underwent trans-epididymal sperm extraction [TESE] at Albayda Fertility Teaching Centre/Libya. Data was collected from the 1st of October 2017 to the 15th of October 2022. SPSS software version 26 was used for data analysis. All the included subjects were with primary subfertility. The total number of cases with successful sperm extraction were 34 [50%] and it was 17 [48.6%] and 17 [51.5%] for TESA and TESE respectively and the difference was non-significant between the two procedures [χ2 = 0.059, p = 0.81]. Patients with successful sperm retrieval rates had significantly lower mean FSH levels [9.82 mIU/mL, SD ± 7.43] than patients with high FSH levels [16.26 mIU/mL, SD ± 11.56, p = 0.008]. The mean age of successful sperm retrieval was 41 years [SD ± 7 years]. Patients who were aged 40 years and above also had the highest extraction rate [71.0%] compared with patients between 20-29 years and 30-39 years [27.3% and 34.6%, respectively], and. Low FSH levels and older age were associated with a higher success rate of sperm retrieval. Further studies are warranted to investigate the cause of low sperm retrieval rates among younger azoospermic patients.</p> Agzail Elhddad Mohammed Abugilah Majduldeen Alhlafi Copyright (c) 2024 Libyan Medical Journal 2024-02-21 2024-02-21 10 14