Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
Prevalence of Denture Stomatitis Among Complete Denture Wearers in Aljouf
219
223
EN
Mostafa
Fayad
Assistant Professor of Removable Prosthodontics, Faculty of Dental Medicine, Al- Azhar University.
Mostafa
Hosny
Lecturer of oral Medicine and Periodontology, Faculty of Dental Medicine, Al- Azhar University.
Hassan
Sakr
Assistant Professor of Removable Prosthodontics, Faculty of Dental Medicine, Al- Azhar University. Associate Professor of
Removable Prosthodontics, College of Dentistry, Al Baha University. Saudi Arabia.
Fahd
Al Kahtany
Assistant Professor, Biomedical Dental Sciences Department, Dean College of Dentistry, Al Baha University. Saudi Arabia.
10.21608/adjg.2018.17094
ABSTRACT
Aim:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">The purpose of this study was to determine the prevalence of denture stomatitis and study the associated factors in complete denture wearers among residence of Aljouf Region, Saudi Arabia.</span></span>
Materials and methods
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;"> Two hundred fifty-six complete denture wearers participated in this cross- sectional study. Patients were recruited from Outpatient clinics, College of Dentistry, Aljouf University. Associated factors such as age, gender, income, level of education, denture-wearing at night, Length of denture use, frequency and method of denture cleaning were studied. All data were obtained by intra-oral examination. Bivariate correlation (Spearman Rho), crosstabs descriptive analysis and frequency analysis were performed. The prevalence rate of denture stomatitis was determined and the associated factors were statistically analyzed.</span></span>
Results
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;"> The prevalence of denture stomatitis was 23.4 % (60 patients). There was a statistically significant relationship between the prevalence of denture stomatitis with age, Level of education, Length of denture use, denture wearing at night, frequency and method of denture cleaning (p < 0.05). There was no significant relationship between the prevalence of denture stomatitis with gender and income of the patient. (p > 0.05)</span></span>
Conclusions
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;"> The presence of denture stomatitis in complete denture wearers was strongly related to patient age, level of education, denture wearing at night, frequency and method of denture cleaning.</span></span>
complete denture,Oral Mucosal Lesions,Denture Stomatitis
https://adjg.journals.ekb.eg/article_17094.html
https://adjg.journals.ekb.eg/article_17094_21fff6c784dc2cb9d4400d018bc9a727.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
Evaluation of Subantimicrobial Dose Doxycycline Effects on Dental Implant Osseointegration in Type II Diabetic Patients
225
235
EN
Nora
Abdel Rahman
Associate Lecturer of Oral Medicine, Periodontology, Oral diagnosis and Radiology Department. Faculty of Dental
Medicine for Girls. Al-Azhar University.
Ossama
Al Shal
Professor of Oral Medicine, Periodontology, Oral diagnosis and Radiology Department, Vice- Dean for Postgraduate Studies.
Faculty of Dental Medicine for Girls. Al-Azhar University.
Olfat
Shaker
Professor of Bio-Chemistry. Faculty of Medicine. Cairo University.
Mai
Shafik
Associate Professor of Oral Medicine, Periodontology, Oral diagnosis and Radiology, Department. Faculty of Dental
Medicine for Girls. Al-Azhar University.
10.21608/adjg.2018.17152
Objective
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">: The present study was carried out to compare radiographic outcomes of dental implant in type II diabetic patients with or without adjunctive administration of subantimicrobial dose doxycycline.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Subjects and Methods : </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">This study included 20 patients with controlled type II diabetes mellitus of both genders, their age ranged from 40-48years.The study groups were designed in two groups, test group treated with dental implant with systemic administration of subantimicrobial dose doxycycline(SDD) for twice per day for 3 months and control group received dental implant alone.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Results: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Regarding radiographic marginal bone levels measurements; in both groups the mean marginal bone loss increased by time, with significant difference between both groups where the test group (SDD received group) showed the lower marginal bone loss values. In both groups, bone density measurements increased by time, with significant percentage change recorded for test group (SDD received group) 55.22% while control group recorded 17.40% from base line values.</span></span>
Conclusions:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">The use of sub-antimicrobial dose doxycycline with dental implants in type II diabetic patients was effective as an adjunctive host modulatory drug. Systemic administration of subantimicrobial dose doxycycline with dental implants in type II diabetic patients resulted in greater increase in bone density and less marginal bone loss thus subantimicrobial dose doxycycline can enhance the osseointegration of dental implants.</span></span>
Diabetes mellitus,Subantimicrobial dose doxycycline,dental implant,Cone beam computed tomography
https://adjg.journals.ekb.eg/article_17152.html
https://adjg.journals.ekb.eg/article_17152_a20070a66fabfa50c595c3440aa4b2cd.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
Potential Effect of Alendronate on Tooth Eruption and Molar Root Formation in Young Growing and Osteoprotic Albino Rats (A Histological and Histochemical Study)
237
242
EN
Somaya
Salwat
Demonstrator of Oral and Dental Biology, Faculty of Dental Medicine for Girls , Al- Azhar University.
Mona
Farid
Professor and Head of Oral and Dental Biology Department, the Former Dean of Faculty of Dental Medicine for Girls,
Al- Azhar University.
Heba
Hakam
Assistant Professor of Oral and Dental Biology, Faculty of Dental Medicine for Girls, Al- Cairo University.
10.21608/adjg.2018.17185
Aim:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">The aim of the present study to evaluate the potential effect of Sodium Alendronate on tooth eruption and root formation in young growing and osteoporotic</span></span>
albino rats .
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Materials and Methods </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Sixty newborn wister albino rats with their average weight 6 grams, each were used in the study. Rats were divided into 4 groups (groupI, groupII, group III &group IV) : GI negative control, GII positive control, GIII Alendronat treated group, GIV (alendronate + dexamethasone) then each group was divided into 3 subgroups according to the date <span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">of scarification at7,14,30 days. Rats were subjected to subcutaneous injection of sodium alendronate and dexamethasone in their dorsal back. The specimens were processed for histological and histochemical analysis.</span></span></span></span>
Results:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">alendronate prevented tooth eruption and root formation but dexamethasone caused resorption of bone over developing molar but didn’t affect molar eruption and root formation.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Conclusion: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">sodium alendronate caused increase in bone formation and obstructed eruption pathway. Sodium alendronate prevented maturation of alveolar bone while dexamethasone caused destruction of alveolar bone but didn’t affect normal tooth eruption.</span></span>
Sodium alendronate,dexamethasone,tooth eruption,root formation
https://adjg.journals.ekb.eg/article_17185.html
https://adjg.journals.ekb.eg/article_17185_1d266cb3be16d5383881cd049a7ec656.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
An In-Vitro Evaluation of Alternative Disinfection Methods of Acrylic resin and Thermoplastic Resin Denture Base Materials
243
255
EN
Dina
Kholief
Assistant Professor of Removable Prosthodontics, Faculty of Dental Medicine for girls- Al-Azhar University.
Shereen
Kabeel
Lecturer of Removable Prosthodontics, Faculty of Dental Medicine for girls- Al-Azhar University.
10.21608/adjg.2018.17186
Objectives:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">This study was designed to evaluate the antimicrobial effect of alternative disinfection methods of heat cured acrylic resin and thermoplastic resin denture base materials and to investigate the porosity resulting from disinfection by these methods.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Material and Methods: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Disc specimens of heat cured acrylic resin and thermoplastic resin were fabricated and divided into four groups for each denture base material according to the disinfection method. The specimens were contaminated in vitro by standardized suspensions of Candida albicans (C. albicans).The following test agents were used: distilled water (as a control group), 5% sodium hypochlorite (NaOCl), 100% white vinegar and 650 W microwave (MW) energy. After the disinfection procedure, the number of viable microbial cells was counted in CFU/ml. Porosities of acrylic resin and thermoplastic resin specimens were evaluated with Scanning Electron Microscope (SEM) after one month of daily exposure to disinfection.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Results: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">ANOVA test showed that, there was a statistical significant difference among the tested treatment agents against C. albicans in each denture base material(P≤ 0.05). Post Hoc test showed a statistical significant difference between the control samples and the other disinfected samples in the microbial count, however, there was no statistical significant difference among the tested methods of disinfection (P>0.05).Regarding porosity area percentage, there was a statistical significant difference among the tested methods of disinfection (P≤ 0.05), where, 100% white vinegar showed the highest porosities followed by NaOCl then the MW disinfection and the least is the control group. Regarding comparison between the two denture base materials, thermoplastic resin showed statistically significant lower microbial adherence as well as lower porosity area percentage than heat cured acrylic resin(P≤ 0.05).</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Conclusion</span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">: All the tested disinfection methods shown to be efficient against <em><span style="font-family: Times-Italic; font-size: xx-small;"><span style="font-family: Times-Italic; font-size: xx-small;">C. albicans</span></span></em><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">. Thermoplastic resin demonstrated lower microbial adherence than heat cured acrylic resin and lower porosity area percentages.</span></span></span></span>
Candida albicans,Disinfection,denture base
https://adjg.journals.ekb.eg/article_17186.html
https://adjg.journals.ekb.eg/article_17186_e28f000d5210e2dfd40fd34786cf0c6b.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
Effect of Chinese Green Tea on Enamel Surface Characteristics in an in-vitro Erosion Model
257
266
EN
Shehad
Rajab
Internship dentist, Faculty of Dentistry, Umm Al-Qura University, Kingdom of Saudi Arabia.
Sahar
Al Marsafy
Assistant Professor of Operative Dentistry, Faculty of Dental Medicine for Girls, Al-Azhar University & Faculty of Dentistry-
Umm Al-Qura University, Kingdom Saudi Arabia.
Mohammad
Al Soufy
Associate Professor of Mechanical Engineering, Collage of Engineering and Islamic Architecture, Umm Al-Qura University,
Kingdom of Saudi Arabia.
10.21608/adjg.2018.17187
Objectives:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Erosive tooth wear is a common worldwide problem. It manifests due to consumption of high caloric and low pH acidic drinks such as carbonated soft drinks and fruit juices, which cause irreversible damage to dental hard tissues. The aim of this study was to evaluate the effect of Chinese green tea on surface characteristics of eroded enamel in an in-vitro erosion model.</span></span>
Materials and methods:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Twenty sound extracted human premolars were selected. Micro-hardness and surface roughness were measured before conducting the experimental test to serve as raw data (control), after immersion in Coca -Cola with a pH of 2.8 for 1 hour, 3 times a day for 3 days and then after immersion in green Chinese tea solution for 1 hour 3 times a day for 3 days. The surface micro-hardness was measured using Vicker’s diamond under a load of 50 grams for 15 seconds while the surface roughness was measured using Taly-surf <strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">.</span></span></strong></span></span>
Results:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">The data were analysed using paired t-test. The micro-hardness measure</span></span><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">ments obtained before green tea treatment (Mean=102.46, SD=24.82) were signifi <span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">cantly lower than those which were obtained after green tea treatment (Mean=158.9, SD=41.44), p=0.0001. The roughness measurements obtained before green tea treat<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">ment (Mean=7.34, SD=1.76) were significantly higher than those which were obtained after green tea treatment (Mean=5.14, SD=1.8), p=0.0001.</span></span></span></span></span></span>
Conclusion:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Chinese green tea positively affected the surface characteristics of eroded enamel.</span></span>
Chinese green tea,coca-cola,Dental erosion,Micro- hardness,roughness
https://adjg.journals.ekb.eg/article_17187.html
https://adjg.journals.ekb.eg/article_17187_5a38a322fc59aca589598f51b29e212a.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
The Effect of Different Surface Treatments on Light Transmittance and Fracture Resistance of Fiber Posts
267
275
EN
Walaa
El Mekkawy
Lecturer of Department of Prosthodontics, Faculty of Dentistry, Al Azhar University, girl’s branch
Suad
Mohammad
Lecturer of Department of Prosthodontics, Faculty of Dentistry, Al Azhar University, girl’s branch
10.21608/adjg.2018.17188
Objective:<br /> <em><span style="font-family: Times-Italic; font-size: xx-small;"><span style="font-family: Times-Italic; font-size: xx-small;">The </span></span></em><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">objective of this study was to evaluate the light transmittance and </span></span>fracture resistance of fiber posts following application of various surface treatments.<br /> Materials and Methods:<br /> <span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Fiber post specimens (GLASSIX+ Pluse. Nordin, redsize, </span></span>swiss) were tested (n=7). The fiber posts were divided into four groups according to the application of surface treatments: Group 1: No surface treatment; Group 2: Irradiated with erbium: Yttrium-aluminum-garnet laser; Group 3: Airborne-particle abraded with 110 pm Al <span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">2</span></span><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">O</span></span><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">3</span></span><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">; Group 4: Etched with hydrofluoric acid (HF) + silane application. After </span></span>measuring light transmittance these fiber posts are cemented in endodontically treated teeth by resin cement to evaluate fracture resistance by universal testing machine.<br /> Results:<br /> <span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">One-way ANOVA revealed the highest mean value in light transmittance was </span></span>recorded in control group, whereas the lowest mean value was recorded after Etched with hydrofluoric acid. ANOVA test revealed that the difference between treatments was statistically significant (p=0.029). Tukey’s post hoc test revealed no significant difference between control group and LASER. Moreover, there was no significant difference between Laser group and Sandblasting group. Etched group with hydrofluoric acid was significantly lower than control group and LASER group. The highest mean fracture resistance value was recorded after Etching with hydrofluoric acid, whereas the lowest mean value was recorded in Sandblasting group. ANOVA test revealed that the difference between treatments was not statistically significant (p=0.996).<br /> <br /> <strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Conclusion:</span></span></strong><br /> Application of surface treatments might negatively affect the light transmission property of fiber posts.
fracture,resistance,Fiber post
https://adjg.journals.ekb.eg/article_17188.html
https://adjg.journals.ekb.eg/article_17188_07b47f89d30528fd2815845d3bae254d.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
Influence of Henna Addition on The Flexural Strength of Acrylic Denture Base Material: An In Vitro Study
277
283
EN
Mohamed
Gad
Lecturer, Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O.
Box 1982, Dammam 31411, Saudi Arabia
Ahmed
Rahoma
Lecturer, Department of Dental Biomaterials, College of Dentistry, Al-Azhar University, Assiut Branch, P.O. Box 11117, Egypt.
amarahoma@uod.edu.sa
Amal
Nawasra
Assistant Professor, Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal
University, P.O. Box 1982, Dammam 31411, Saudi Arabia
Mahmoud
Ammar
Assistant Professor of Removable Prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Assiut Branch. Egypt
dr_3mmar3@yahoo.com
10.21608/adjg.2018.17191
Purpose
<span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA">: The purpose of this study was to evaluate the flexural strength of the acrylic denture base material modified with different concentrations of henna.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Materials and Methods:</span></span></strong>
<span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA">Sixty heat polymerized acrylic resin specimens were fabricated in dimensions 65×10×2.5 mm according to ADA specifications #12. Specimens were divided according to henna concentrations into 6 groups. One control group without henna addition while the other five groups were processed by adding henna in concentrations 1%, 2.5%, 5%, 7.5% and 10% of acrylic powder. After processing, specimens were finished, polished, and stored in distilled water at 37 <span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">o</span></span><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA">C for 48±2 hours prior to testing. The three-point bending test was used to measure the flexural strength using universal testing machine. The morphology of the fractured specimens was studied under a scanning electron microscopy (SEM). The independent sample t-test was used and p <span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA">≤ 0.05 was considered statistically significant. </span></span><strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Results: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA">The flexural strength significantly decreased with henna addition to PMMA denture base material ( <em><span style="font-family: Times-Italic; font-size: xx-small;"><span style="font-family: Times-Italic; font-size: xx-small;">P</span></span></em><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><0.05), and this decrease was in proportional to henna concentrations.</span></span></span></span></span></span></span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Conclusion: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA">The flexural strength of acrylic denture base material negatively was affected by henna addition.</span></span>
Acrylic denture base,henna,polymethyl methacrylate,flexural strength
https://adjg.journals.ekb.eg/article_17191.html
https://adjg.journals.ekb.eg/article_17191_654b1595b2a01c6da916d22279bd4ff0.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
Tensile Strength of Denture Base Material Reinforced With Zirconia Nanoparticle and Glass Fibers
285
295
EN
Mohammad
Gad
Lecturer, Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University,
P.O. Box 1982, Dammam 31411, Saudi Arabia
Ahmed
Rahoma
Lecturer, Department of Dental Biomaterials, College of Dentistry, Al-Azhar University, Assiut Branch, P.O. Box 11117, Egypt.
amarahoma@uod.edu.sa
Reem
Abualsaud
Assistant Professor, Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal
University, P.O. Box 1982, Dammam 31411, Saudi Arabia
rabualsaud@iau.edu.sa
Mahmoud
Ammar
Assistant Professor of Removable Prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Assiut Branch. Egypt
dr_3mmar3@yahoo.com
10.21608/adjg.2018.17192
ABSTRACT
Purpose:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">The current study was conducted to determine the effect of hybrid reinforcement with zirconium oxide nanoparticles (NZ) and glass fibers (GF) on the tensile strength of denture base resin. </span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Materials and methods: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Different ratios of NZ/ GF were added into resin at a fixed concentration of 5% by weight. For each formulation (one control and 7 experimental groups), ten specimens were prepared in a dumbbell shape using a stainless steel mold. Tensile strength was evaluated by using a universal testing machine. Scanning electron microscope (SEM) was used to study the fractured surfaces.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Results: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Tensile strength of the specimens reinforced with NZ/GF in varying ratios was found to be higher than that of the control group. Among the hybrid groups, the specimens reinforced with 50%NZ-50%GF showed the highest tensile strength. SEM fractographs showed multiple lamellae displayed surface, which is characteristic of strong material. Weak adhesion and pull out of fibers from the matrix were seen in high concentration GF.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Conclusion: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;" lang="KO"><span style="font-family: Times-Roman; font-size: xx-small;" lang="KO">The incorporation of 50%NZ-50%GF into acrylic denture base appeared to improve the tensile strength.</span></span>
Acrylic denture base,tensile strength,glass fiber,Zirconia Nanoparticles
https://adjg.journals.ekb.eg/article_17192.html
https://adjg.journals.ekb.eg/article_17192_90438730bb9958321cb5dff20805520e.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
Stresses Induced By Integrated and’ Nonintegrated Extracoronal Semi-Precision Attachments For Maxillary Distal Extension Bases
297
304
EN
Ahmed
Al-Okl
Assistant Professor of Removable Prosthodontics Faculty of Dental Medicine, Al Azhar University, (Asuit branch) Egypt
Mahmoud
Al Samahy
Professor of Removable Prosthodontics. Oral and Maxillofacial Prosthodontic. Dep. Faculty of Dentistry, King Abdulaziz
University. Jeddah, KSA. Professor of Prosthodontics Faculty of Dentistry, Alexandria University. Egypt.
Hatem
Amin
Professor of Removable Prosthodontic. Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry, King
Abdulaziz University. Jeddah, KSA. Professor of Prosthodontics Cairo university. Egypt.
U
Khashaba
Department OF Mechanical Engineering, Faculty of Engineering, King Abdulaziz University. Jeddah 21589, KSA.
Mechanical design and production Engineering Department, Faculty of Engineering, Zagazig University.
10.21608/adjg.2018.17195
Purpose:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">The aim of the present study is to compare the stresses induces on the splinted abutments by two different reciprocation designs in conjunction with extracoronal semi-precision attachments retained removable partial denture (RPD) using strain gauge analysis.</span></span>
Material and methods:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">For this study, two RPD designs were made A, and B. representing maxillary bilateral distal extension edentulous area. The two abutments, canine and first bicuspid was fixed splinted on both sides with porcelain facing crowns. For design (A) an extra coronal attachment with integrated interlock was used at the distal aspect of the splinted first bicuspid and canine. For design (B) a parallel interlock extra coronal attachment was used with a conventional lingual bracing arm. A strain gauge was used for this study to measure the micro-strain induced on the apical and lateral sides of the canine and first-bicuspid abutments.</span></span>
Results:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">SPSS software program was used in the statistical analysis of the results. The results revealed that maximum stresses induced at the apex of the canine and firstbicuspid abutments were in case of design (B). While no significant difference between the two designs when the lateral load was applied</span></span>
Conclusion:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">A more favorable stress applied on the canine and bicuspids obtained with integrated interlock attachment.</span></span>
Stress analysis,extracoronal semi-precision attachments,Removable Partial Denture,Strain gauge
https://adjg.journals.ekb.eg/article_17195.html
https://adjg.journals.ekb.eg/article_17195_4060c00300a8fefdc0fef14852be8228.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
A Clinical Comparison between Mini and Short Dental Implants in Completely Edentulous Patients with Atrophic Ridges
305
312
EN
Nancy
Saad
Dentist at Matarya Teaching hospital , General Organization For Teaching Hospitals
Shereen
Kabeel
Lecturer of Removable Prosthodontics, Faculty of Dental Medicine for Girls, Al-Azhar University
Hala
Abbas
Professor of Removable Prosthodontics, Faculty of Dental Medicine for Girls, Al-Azhar University.
Nahed
Abd El-Moniem
Lecturer of Oral & Maxillofacial Surgery, Faculty of Dental Medicine for Girls, Al-Azhar University.
10.21608/adjg.2018.17197
Aim:
<span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">This study aimed to compare between mini implants and short implants supported overdentures in completely edentulous patients with atrophic ridges not suitable for conventional implants.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Materials and methods: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Ten completely edentulous patients with severely resorbed mandible and age ranged between 55 and 60 years were selected for this study. Complete heat cured acrylic resin dentures were constructed for all patients. Patients were divided into two groups, each group had five edentulous patients, In Group I, each patient received two mandibular mini-implants at the canine site with a standard diameter 2.5 mm and standard length 10 mm, while in Group II, each patient received two mandibular short implants at the canine site with standard diameter 3.4 mm and standard length 10 mm. All implants in both groups were placed following immediate loading protocol. Patients were recalled for a follow-up period of 1 year, evaluating implants clinically for pocket depth and gingival index at baseline, then 3, 6 and 9 months intervals, and evaluating bone height loss radiographically at baseline, then 6, 9 and 12 months intervals.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Results: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Pocket depth and crestal bone height loss increased in patients using short implants than patients using mini implants, while gingival index parameter in all patients was not affected by using the two types of implants.</span></span>
<strong><span style="font-family: Times-Bold; font-size: xx-small;"><span style="font-family: Times-Bold; font-size: xx-small;">Conclusion: </span></span></strong><span style="font-family: Times-Roman; font-size: xx-small;"><span style="font-family: Times-Roman; font-size: xx-small;">Mini dental implants have a favorable effect on the supporting structure than short dental implants in both clinical and radiographic evaluation.</span></span>
Mini,Short,Implants,overdenture,Flapless,immediate loading
https://adjg.journals.ekb.eg/article_17197.html
https://adjg.journals.ekb.eg/article_17197_bf4dec34cf9b51b3b14ed39329643040.pdf
Al-Azhar University, Faculty of Dental Medicine, Girls Branch
Al-Azhar Dental Journal for Girls
2537-0308
2537-0316
5
3
2018
07
01
Clinical and Radiographic Evaluation of Implant Ball Retained Mandibular Complete Overdentures with Lingualized Balanced Occlusion•
313
318
EN
Aboelmawaheb
Ahmed
Consultant of Prosthodontics in Ministry of Health
Reda
El Kholy
Professor of Prosthodontics Faculty of Dental Medicine, Al-Azhar University (Cairo).
Mostafa
Younos
Assistant Professor of Prosthodontics And Head of Prosthodontics Department. Faculty of Dental Medicine, Al-Azhar
University (Assiut).
Mostafa
Ali
Assistant Professor of Prosthodontics And Head of Prosthodontics Department. Faculty of Dental Medicine, Al-Azhar
University (Assiut).
10.21608/adjg.2018.17198
Ten completely edentulous patients were selected. Each Patient had received conventional maxillary and mandibular complete denture with balanced lingualized occlusion. After adaptation period each patient had stage one surgery for placing two implant fixtures, in the cuspid area anterior to the mental foramina. The two endosseous root form (3.7 diameter and 13 mm length) fixtures were left submerged for a period of three months for osseointegration. The implant fixtures were uncovered, healing abutments were used and after two weeks the steps for modification of the patient existing denture were started and the metal housing was secured to the fitting surface of the mandibular denture by a chemical curing acrylic resin. Then the patients recall after 3, 6, 9, 12 months for evaluation. The clinical evaluation includes recording of probing depth (mm), bleeding index scores, gingival recession (mm) and the radiographic evaluation includes bone resorption on the mesial and distal side of the implant. The results <span style="font-family: Times-Roman; font-size: xx-small;" lang="JA"><span style="font-family: Times-Roman; font-size: xx-small;" lang="JA">showing that a significant increase (p≤0.05) in all the clinical parameters and amount of bone resorption from the base line till 12 months. The result concluded that: Balanced lingualized occlusion recommended for implant complete overdenture as enhancing stability and retention of the denture which essential for maintenance of implants. Clinical evaluation of implant ball retained overdentures with balanced lingualized occlusion not differs from base line scores also, the bone loss was within the accepted values so the ball attachments is recommended for retention of complete overdenture option.</span></span>
overdenture,Implant,ball attachment,lingualized balanced occlusion
https://adjg.journals.ekb.eg/article_17198.html
https://adjg.journals.ekb.eg/article_17198_3f77207088a317e61971e97e15114b29.pdf