Mahmoud Helmy Belal

Learn More
OBJECTIVE To evaluate clinical outcomes and assess digital subtraction radiographic changes after using bioabsorbable membrane (polyglycolic acid/polylactic acid--PGA/PLA) or a connective tissue graft (CTG) as a barrier, with or without resorbable hydroxylapatite (HA Resorb) in the treatment of mandibular class II furcations. METHODS Fifty furcations in(More)
OBJECTIVE Clinical application of lasers in periodontal therapy has continued to expand in last decades; however there are still some controversies. The present study aimed to compare the conditioning effects of the carbon dioxide (CO2) or erbium-doped: yttrium, aluminum and garnet (Er:YAG) laser on periodontally diseased root surfaces following scaling and(More)
PURPOSE Dentin hypersensitivity is a potential threat to oral health. Laser irradiation may provide reliable and reproducible treatment but remains controversial. The present study aimed to evaluate the effects of CO2 or erbium-doped yttrium aluminium garnet (Er:YAG) laser therapy, and to assess mineral content. METHODS Eighteen human single-rooted teeth(More)
OBJECTIVE Platelet-derived growth factor (PDGF-BB) is suggested to be a potent stimulator and a strong mitogenic agent for human periodontal ligament cells (PDL). This study aimed at assessing the effectiveness of PDGF-BB application on periodontally diseased root surfaces through attachment and growth of fibroblast cells. MATERIALS AND METHODS Fifteen(More)
Field grown soybean cv. Williams-82 plants were sprayed with malathion or carbaryl formulations at 30, 60 and 90 days after planting. Net photosynthesis (PN) was measured in the control (water-sprayed) and pesticide-treated plants, 1, 3 and 7 days after treatment, with a LICOR 6200 Portable Photosynthesis System. The pesticide-treated plants showed a(More)
Periodontal regeneration using EDTA or PDGF showed promising results, but the effect of combined application was still unclear. This study aimed to verify the effect of EDTA and/or PDGF application on root adhesion and proliferation of PDL fibroblast cells. Eighty specimens were prepared from forty periodontitis teeth and made five groups: (1) diseased(More)
BACKGROUND The use of the erbium-doped:yttrium, aluminum, and garnet (Er:YAG) laser in periodontal therapy has been the focus of much research. Recombinant human platelet-derived growth factor-BB (rhPDGF-BB) is suggested as a potent stimulator and strong mitogen for human periodontal ligament cells. The present study tested the direct effects of Er:YAG(More)
Objective: Ulcerative lesions on lower lip are common. Aggressive forms lead to lip distortion and affect function and esthetic. Suggested treatment strategies are still facing controversy. This study aimed to evaluate the potential therapeutic efficacy of a combination of topical hyaluronic acid (HA) and systemic selenium plus vitamin A, C and E (ACE).(More)
AIM Oral lichen planus (OLP) is a chronic mucocutaneous disease with an immunological etiology. This study was conducted to evaluate the effect of selenium combined with Vitamins A, C & E (Selenium-ACE) in the treatment of erosive-ulcerative OLP as an adjunctive to topical corticosteroids plus antifungal agent. SUBJECTS AND METHODS Thirty patients with a(More)
Background: Successful periodontal regeneration is considered a gold standard for periodontists. Several GTR materials and bone grafts have been attempted but showed variable success rates. Objective: The present randomized clinical and radiographic study was undertaken to compare the effectiveness of guided tissue regeneration (GTR) by using equine(More)
  • 1