Other Dentistry Commons^™

Orofacial Pain Overview: Getting Rid Of The Riddles, Andrew L. Young

All Dugoni School of Dentistry Faculty Articles

While most pains that find their way to the dental office are dental in origin, some have less familiar roots: muscular, joint, neurological, headache, sinus or psychological. All of these roots can at times masquerade as a toothache. The purpose of this article is to alert the dentist to the select features of each root that distinguish it from the rest, resulting in efficient and appropriate treatment.

Collaborative Learning: Students’ Perspectives On How Learning Happens, Abdulaziz Almajed, Vicki Skinner, Ray Peterson, Tracey Winning

Interdisciplinary Journal of Problem-Based Learning

Collaborative learning (CL), a core component of inquiry-based learning approaches, aims to support students’ development of key skills (e.g., working in multidisciplinary teams). To design effective CL activities, we need to understand students’ perceptions about CL. However, few studies have examined students’ understandings of CL. This qualitative study aimed to address this gap by analyzing participants’ constructions of their CL experiences. Focus group data (14 first- and 14 fourth-year dental student volunteers) were analyzed by an inductive thematic analysis strategy. The findings explained students’ perspectives of key factors for facilitating positive learning within an inquiry-based CL context, namely having a …

Another Piece Of The “Silence In Pbl” Puzzle: Students’ Explanations Of Dominance And Quietness As Complementary Group Roles, Vicki J. Skinner, Annette Braunack-Mayer, Tracey A. Winning

Interdisciplinary Journal of Problem-Based Learning

A problem-based learning (PBL) assumption is that silence is incompatible with collaborative learning. Although sociocultural studies have reinterpreted silence as collaborative, we must understand how silence occurs in PBL groups. This essay presents students’ explanations of dominance, leadership, and silence as PBL group roles. An ethnographic investigation of PBL groups, informed by social constructionism, was conducted at two dental schools (in Australia and Ireland). The methods used were observation, interviews, and focus groups. The participants were volunteer first-year undergraduates. Students attributed dominance, silence, and members’ group roles to personal attributes. Consequently, they assumed that groups divided naturally into dominant leaders …

The Diagnosis Of Neuromuscular In Orthodontics Effects Of Tens On The Antero-Posterior Maxilla-Mandibular Relationship, Yasser Thabet, Abumadyan Aqrabe, Redwan Alaslmy, Mohamed Mohamed

Al-Azhar Journal of Dentistry

Objective:This study was conducted in order to assess the changes in the occlusal position of the mandible after ULF (Ultra Low Frequency)- TENS relaxing procedure in subjects in pubertal growth phase with diagnosed Angle Class II division I and mandibular dentoalveolar retrusion. Materials and methods: This study was performed on 70 patients (48 females,22 males) with an Angle Class II division I, aged between 10 and 15 years old (mean age 12.26, SD 1.32) characterized by mandible dentoalveolar retrusion and optimal vertical facial dimension, diagnosed by clinicaland cephalometric evaluation. Diagnostic neuromuscular registrations were made for all subjects. The casts were …

Comparative Study Between Nasogastric (Ryle) Feeding And Oral Feeding Post- Cleft Palate Repair, Mohamed Shahin, Yousry Abdelsalam

Al-Azhar Journal of Dentistry

Background: feeding after surgical correction of cleft palate is an important topic; the method of feeding usually affects the surgery outcome and stress of operation in infants. However, no consensus on the method of feeding for children with cleft palate either pre-or post-operative correction. Aim of the work: to investigate the effect of nasogastric tube (NGT) feeding compared with oral feeding on children in the first 48 hours after primary cleft palate repair. Patients and methods: The study was carried out at Al-Azhar University Hospital (Pediatric Surgery Unit);Damietta and specialized kids hospital during the period from January 2015 to Jun …

A Comparative Prospective Clinical Study Of Two Different Implant System With Zirconia Abutment For Cemented Single Tooth Restoration, Sahar Abdel Wahab, Shadia Lsayed

Al-Azhar Journal of Dentistry

Statement of problem. Treatment of tooth loss in the anterior maxilla can involve difficult functional, esthetic, and psychological problems, especially in young patients with otherwise good dentition. Purpose. The purpose of this study was to provide a comparative evaluation of two different implant system (Biohorizons and Dentium) with zirconia abutment in cemented single-tooth restorations. Material and methods. This prospective study of 45 single-tooth replacements with 22 Biohorizons and 23 Dentium dental implants was performed in 30 patients. The patients were selected from the outpatients’ clinic, Faculty of Dental Medicine, Al- Azhar University during the period October 2010 to October 2013. …

Conventional 2.0 Mm Miniplates Versus 3d Miniplate In Mandibular Fracture Fixation, Mariam Kamel, Nahed Abd El Moniem, Fahmy Abdel Aalhassanein, Susan Hassan

Al-Azhar Journal of Dentistry

The aim of the present study was to clinically and radiographically compare and evaluate the treatment outcomes using 3D miniplate versus conventional 2.0 mm miniplates in fractures fixation of the anterior mandible. The study enrolled 16 patients with a total of 18 fractures; suffering from anterior mandibular fractures (symphysis and/or parasymphysis) requiring open reduction and internal fixations through an intra-oral approach. Groups I patients were fixed using 3D titanium miniplates and screws. Group II patients were fixed using two 2.0 mm titanium miniplates and screws.Postoperative primary clinical treatment outcome points for comparative evaluation for all patients were fracture stability, the …

Llusd Articulator - Volume 27, Number 2, Loma Linda University School Of Dentistry, Rodrigo Viecilli

Articulator (Dentistry Journal)

Contents:

4 | Dean's message
6 | Communication Survey analyzed
14 | Terry Tanaka retires
17 | "I've lived on the mother side"
20 | LLUSD's 60th conferring of degrees
30 | Mechano-transduction of OOER
40 | Chen introduces China to Zirconia crowns
46 | Tom Rogers: surfer, humanitarian, lifelong learner
48 | NEWS
56 | A tent in the Kalahari

The Effect Of Using Cross-Linking Agent With Nano-Adhesive On The Bonding To Sound And Caries Affected Dentin, Mohamed Abdelaal, Maha Niazy, Randa Hafez, Asmaa Yassen

Al-Azhar Journal of Dentistry

Aim: This study was designed to evaluate the microtensile bond strength and the effect of storage on using two different concentrations (6.5% and 15 %) of grape seed extract cross-linking agent with nano-adhesive single bond universal adhesive to sound and caries affected dentin. Methods: A total of sixty molars was divided into 2 main groups (30 each) according to the type of substrate either sound or caries affected dentin. Each group was divided into three equal subgroups (10 teeth each) according to the treatment with cross linking agent (Grape seed extract (GSE)), either with no treatment with GSE or 6.5% …

The Effect Of Two Denture Base Materials On Microbial Colonization Of Complete Dentures In Controlled Diabetic Patients, Sammar Mohamed, Moustafa Abdel Gany, Amany Abdel Fattah, Dina Kholif

Al-Azhar Journal of Dentistry

Aim: To compare between conventional heat cured Acrylic resin and Flexible thermoplastic resin denture base materials on microbial colonization of complete dentures in Controlled Diabetic patients. Material & Methods: This study included thirty completely edentulous well controlled diabetic patients which were divided into two equal groups, fifteen patients received complete dentures made of conventional heat cured acrylic resin dentures while the other fifteen patients received upper complete denture made of flexible poly amide (Bre-flex 2ndedtion) thermoplastic dentures and lower heat cured acrylic resin denture. Oral swabs for isolation of microorganisms was done with gamma sterilized disposable swabs from tuberosity area …

The Effect Of Demineralized Dentin Matrix Graft Alone And Combined With Statin And Propolis On Bone Repair. (A Histological Study), Mena Abd-Allah, Mona Farid, Nahed Korany, Heba Adawy

Al-Azhar Journal of Dentistry

Aim: The aim of the present study was to evaluate the effect of demineralized human dentin matrix graft alone and when combined with statin and propolis on bone repair in bone defects in the tibia of rabbits histologically. Materials and Methods Fifteen adult male rabbits (weight 2 to 2.5 kg) were used in this study. In each rabbit four holes were created (two in each tibia), one was left empty as control, the second was packed with DDM slices, the third was packed with DDM slices saturated with statin and the last one was packed with DDM mixed with propolis. …

Effect Of Primer Type And Ultrasonic Cleaning On Bonding To Zirconia Ceramic, Huda El Rashedy, Osama Abd Elgany, Sahar Abd El Wahab

Al-Azhar Journal of Dentistry

Zirconia-based ceramics offer strong restorations in dentistry, but the adhesive bond strength of resin cements to such ceramics is not optimal. The aim of the present study was to evaluate the effect of both primer types and ultrasonic cleaning on bonding to zirconia ceramics.A total number of forty zirconia discs were constructed from prefabricated blanks of zirconia. The discs were mounted on acrylic blocks and randomly divided into two equal main groups (n = 20) According to ultrasonic cleaning. Without ultrasonic cleaning and with ultrasonic cleaning. Every group was subdividedinto three subgroups according to type of primer (n= 10) Monobond …

The Effect Of Two Different Denture Base Materials On Retention Of Complete Denture In Severely Resorbed Lower Ridge Cases, Eman Ebrahim, Amany Abdel-Fattah, Shereen Kabee

Al-Azhar Journal of Dentistry

Aim of the study: to compare between two different denture base materials regarding their effect on the retention of complete dentures in patients with severely resorbed lower edentulous ridges. Material &methods: seven completely edentulous patients with age ranged between 55 and 65 years were selected for this study; each patient received three types of lower dentures to use it for four months, in addition to one week in between as a washing period before wearing the new one. Denture bases classified into three groups, heat cured acrylic resin denture base (Group I), heat cured acrylic resin denture base where the …

Root Resorption Investigated With Con Beam Computed Tomography End Of Orthodontic Treatment With Fixed Appliance, Yasser Thabet, Abumadyan Aqrabe, Redwan Alaslmy, Mohamed Mohamed

Al-Azhar Journal of Dentistry

Objective: To examine the prevalence of orthodontically induced root resorption after treatment and the correlation with resorption found after 7 months of treatment. Materials and Methods: One hundred forty patients (12–19 years) treated with fixed appliancesand extraction of four premolars were examined with con beam computed tomography before treatment, after 7 months of treatment (n=87), and at the end of active treatment. The MalmgrenIndex was used to describe the degree of root resorption. Results: Resorption root severe (>2 mm, score 3) was found in 30% of the patients at the end oftreatment. Extreme root resorption was found in two …

The Effect Of Using Ultra Suction System On Mandibular Complete Denture Retention, Fatma Sayed, Mohamed Sanad, Ola Omar, Hanaa Youssef

Al-Azhar Journal of Dentistry

Aim of the study: This study was carried out to evaluate the effect of using ultra suction system on mandibular complete denture retention and on the rate of growth of candida albicans. Material and methods: Ten completely edentulous patients participated in this study. Each patient recived two dentures a conventional mandibular denture(D1 denture) constructed using heat cured acrylic resin and an ultra suction retained denture (D2 denture) which was constructed using heat cured acrylic resin with ultra suction system added to it. Patients were left to function with each denture set for a period one week, one month, three months …

Effect Of Gamma Radiation On Mechanical Properties Of Tooth Structure, Rania Hindi, Hala Hazzaa, Doaa El-Sharkawy

Al-Azhar Journal of Dentistry

This in vitro study was made to evaluate the effect of gamma radiation on mechanical properties of tooth structure. A total number of 40 human premolar teeth were collected. The teeth were healthy and were freshly extracted and they were stored in distilled water for periods of less than one month the teeth were, free from any apparent caries,macroscopic cracks, and abrasion and staining as assessed by visual examination.The teeth were divided into 2 groups of 20 teeth each (A and B) The groups were: 1. Group (A) which served as a control.2. Group (B) which subjected to 60 Gy …

Effect Of Taper Angle And Luting Cement On The Retention And Marginal Accuracy Of All-Ceramic Crowns, Sally Adawy, Atef Fathy, Eman Essam

Al-Azhar Journal of Dentistry

Marginal accuracy and retention of all-ceramic crowns are crucial prerequisites for their long-term survival. Meanwhile, the innovative revolution of adhesive cementation has led to uncountable number of recent brands through which the dentist has to choose. The aim of the present study was to evaluate the effect of two different tapering angles [10°& 26°] and two different luting cements [Self-etching adhesive & Self adhesive resin cement] on the retention and marginal accuracy of single unit crowns, constructed from three types of ceramics: IPS e-max Press, IPS e-max CAD and ZirconiaCAD/CAM. Seventy two recently extracted sound human molars were used in …

Effect Of Hydroxyapatite And Sodium Hexameta Phosphate Application On Demineralized Enamel And Dentine, Sara Zarem, Maha Niazy, Nevein Gad

Al-Azhar Journal of Dentistry

The aim of the present study was to evaluate the remineralizing effect of (hydroxyapatite nano particles,sodium hexametaphosphate, hydroxyapatite nanoparticles and sodium hexametaphosphate in combination) with and without use of artificial saliva on enamel and dentin. Forty freshly extracted human premolars were used in this study.They should be free from caires, macroscopic cracks, abrasion or extensive staining.The teeth were kept in normal saline until use. Each tooth was horizontally cut to separate the crown from the root by using a low – speed double faced diamond disc. Each crown were then sectioned longitudinally in to two parts (buccal and lingual) then …

Evaluation Of Nano- Hydroxyapatite Versus Hydroxyapatite Crystals In The Treatment Of Periodontal Intrabony Defects, Amal El Said, Eatemad Shoriebah, Naglaa El Kilany

Al-Azhar Journal of Dentistry

The aim of the present study was to evaluate clinically and radiographically theeffectiveness of nano-crystalline hydroxyapatite (NcHA) versus hydroxyapatite (HA)crystals in the treatment of intrabony periodontal defects. Subjects and Methods:Twelve patients with bilateral defects, with probing depth (PD) ≥5 mm and clinicalattachment loss (CAL) ≥3 mm participated in the present study. Subjects were dividedrandomly into Group 1: 12 sites treated surgically with open flap debridement (OFD)and placement of NcHA (1) as a bone substitute. Group 2: 12 sites treated surgicallywith open flap debridement and placement of HA (2) as a bone substitute. The followingclinical parameters were recorded: PD, CAL, plaque …

Effect Of Nanohydroxyapatite With And Without Chlorhexidine On Remineralization Of Carious Dentine At Different Intervals: An In Vivo Study, Samaa Ibrahim, Maha Niazy, Mohammad El- Yasaky, Naglaa El- Kilani

Al-Azhar Journal of Dentistry

This invivo study was carried out to evaluate the effect of nanohydroxyapatite (n-HAp); applied with or without prior application of chlorhexidine (CHX), on remineralization of caries- affected and caries infected dentine types. Forty molars in eight patients having class I caries and no pulpal involvement were selected. In each selected molar, caries was removed except from the pulpal floor. Thereafter, molars were divided into two groups (n= 20) according to the type of carious dentine left on the pulpal floor; caries- affected or infected dentine. Each group was further subdividedinto two subgroups (n=10) according to the material that was applied …

Effect Of Application Of Edta And Delayed Light Activation On Bond Strength Of Resin-Modified Glass Ionomer To Dentin, Menna Ali, Maha Niazy, Doaa El-Sharkawy

Al-Azhar Journal of Dentistry

The aim of the present study was to evaluate the effect of delayed light activation and the application of EDTA on bond strength between resin modified glass ionomer and dentin. Thirty permanent sound human posterior teeth were used. The crowns were separated from the roots 1mm below cervical line and then the crowns were cut in a mesio-distal direction to obtain two halves. Samples then were embedded in self cure acrylic resin and then trimmed to create flat dentinal surfaces. Samples were divided in to three groups of 20 each according to light activation (immediate, delayed or without). Each group …

The Effect Of Aloe Vera And Eucalyptol Oil On The Development Of Tooth Germs In Albino Rats: A Histological And Histochemical Study, Noura Bakr, Heba Adawy, Marwa El Sheikh

Al-Azhar Journal of Dentistry

Tooth development or odontogenesis is a very complex process involving many growth factors and transcription factors of genes to ensure an ordered and controlled development of tooth germs. Increasing use of herbal remedies by mothers during pregnancy to avoid side effects of medical drugs may cause systemic and local effects on tooth development. In this study 50 pregnant rats were used, G1 control, GII eucalyptol oil vapour, GIII aloe vera. Offsprings were sacrificed at 1stday and 5th day, the specimens were obtained by serial sagittal sections and stained with (H&E) and Mercuric Bromophenol Blue (special stain). Administration of these herbal …

A Clinical And Laboratory Evaluation Of Different Remineralizing Agents Used For Treatment Of Carious Posterior Teeth, Eman Mohamed, Eatimad Shoreibah, Eman Elmasry, Maha Niazy, Mohamed Mostafa

Al-Azhar Journal of Dentistry

Objective: The purpose of this study is to 1) evaluate clinically and radiographically the carious dentin treated with Ozone, Casein Phosphopeptide - Amorphous Calcium Phosphate (Tooth Mousse) mixed with Glass Ionomer and Glass Ionomer Cement only in primary molars of 4 - 8 years old children (In vivo study), and 2) Compare the microhardness of carious dentin treated with Ozone, Casein Phosphopeptide - Amorphous Calcium Phosphate (Tooth Mousse) mixed with Glass Ionomer and Glass Ionomer Cement only in extracted primary molars (In vitro study). Design: Forty five primary molars with proximal caries in children, ranging in their age from 4-8 …

The Effect Of Siwak And Brushing On Cariogenic Bacteria And Surface Characteristics Of Enamel And Two Brands Of Resin Composite (An In Vitro Study)*, Shahenda Abdullah, Maha Niazy, Inas Motawea

Al-Azhar Journal of Dentistry

Purpose: The aim of this study was to evaluate the effect of siwak extract and toothbrush using two brands of toothpaste one containing siwak extract and one without on the cariogenic bacteria and surface characteristic of enamel and two types of composite resin. Materials and Methods: A total of 90 specimens were used in the present study. The specimens were divided into three groups according to the type of material used (n=30); Enamel specimens, Feltk Z350 specimens, and Tetric-N-Ceram Specimens. Each group was further subdivided into 3 subgroups according to the methodof treatment (n=10); specimens treated with Siwak sticks, specimens …

Commencement Program 2016, Loma Linda University

Commencement Programs

CONTENTS

1 | Message from the President

3 | 2016 Events of Commencement

5 | The Academic Procession

7 | Significance of Academic Regalia

9 | The Good Samaritan

10 | University History Highlights

12 | Loma Linda University Song - "Healing Love"

13 | The Speakers

21 | The University Honorees

36 | The School Honorees

56 | The President's Award Recipients

66 | The Program

• School of Medicine, 67
• School of Pharmacy, 90
• School of Dentistry, 98
• School of Allied Health Professions - Allied Health Studies, Cardiopulmonary Sciences, Clinical Laboratory Science, Health Informatics and Information Management, Nutrition and …

Llusd Articulator - Volume 27, Number 1, Loma Linda University School Of Dentistry, Kenneth Abramovitch

Articulator (Dentistry Journal)

Contents:

4 | Dean's message
6 | Articulator survey
8 | Melvin Lund: LLUSD pioneer
12 | Where are they now? Price Family
17 | Radiology Clinic dedication
20 | Alumni Student Convention #56
28 | Celebrating 40 years of implant dentistry
33 | Profiles in service learning
38 | Science history: X radiation and dental radiology
46 | LLUSD researchers swarm AADR & CDA
53 | NEWS
62 | Clinic regulars

Comparison Of Bond Strength And Apical Seal Obtained In Root Canals Prepared With A New Rotary System Endo Eze System And Obturated With Two Different Techniques, Mervat Mohamed, Mohsen En Nour Eldeen, Mohamed Khalefa

Al-Azhar Journal of Dentistry

The aim of the present study was to compare bond strength and apical seal obtained in root canals prepared with a new rotary system (Endo-Eze) and obturated with two different techniques (AH Plus sealer/ gutta-percha points and EndoREZ sealer/ EndoREZ points). Sixty freshly extracted mandibular first molars were used in this study. The distal root of each collected tooth was removed by tapered diamond stone mounted in high-speed handpiece. Mesio-buccal canals of teeth were cleaned and shaped by Endo-Eze system, then they were classified into two main groups of 30 each accordingto obturation materials used, Group (1): canals were obturated …

Effect Of Food Simulating Liquids And Thermo-Cycling On Flexural Strength And Surface Hardness Of A Resin Nano-Ceramic Cad/Cam Material, Ahmed Sayed, Maha Niazy, Inas Motawee

Al-Azhar Journal of Dentistry

Purpose: Evaluate the effect of food simulating liquids and thermocycling on miniflexural strength and surface micro-hardness of a resin nano-ceramic material (Lava Ultimate) compared to indirect laboratory composite resin material (Nexco Paste) and direct composite resin material (Filtek Z350 XT).Material and Methods: A total number of 180 samples were fabricated. The samples were divided equally into 3 groups (n=60). Group 1 (M1) samples were fabricated from the resin nano ceramic CAD/CAM blocks (Lava Ultimate), group 2 (M2) samples were farbricated form indirect micro-hybrid resin composite (Nexco Paste), while group 3 (M3) samples were fabricated from direct resin composite (Filtek Z350 …

Evaluation Of The Antimicrobial Effect Of Propolis Extract On Oral Microflora, Safaa El-Sayed, Samy El-Bayoumy, Mohamed Mostafa, Magda El-Malt

Al-Azhar Journal of Dentistry

Aim: This study was conducted to evaluate the antimicrobial effect of propolis extract with different dilutions when applied as mouth wash in vivo against a known antiseptic agent (0.2%Chlorhexidine) . Material and Methods: Ninety children were selected for this study. All children were examined clinically for dental caries and used to evaluate the antimicrobial effect of studied materials. The childern were divided equally into two groups (fourty five in every group). In the first group childern were instructed to rinse with 3 ml of propolis extract for specific time and divided into three sub groubs while in the other group …

Effect Of Childhood Malnutrition On Salivary Flow And Ph, Doaa Hashem, Samy El-Bayoumy, Wafaa Fahmy, Magda El Malt

Al-Azhar Journal of Dentistry

The aim of the present study was to assess the effect of childhood malnutrition on salivary flow rate and pH. Four hundred children between 3-12 years were selected for this study. The children were divided into two main groups according to their nutrition status, Group (A): two hundred children representing the malnourished children, Group (B): two hundred children representing the control group. Within Group (A) Children were further divided into 2 subgroups, subgroup (1): one hundred stunted children and subgroup (2): one hundred underweight children. Every child was subjected to unstimulated and stimulated saliva flow and pH measurements and caries …