Other Dentistry Commons^™

Llusd Articulator - Volume 31, Number 1, Loma Linda University School Of Dentistry

Articulator (Dentistry Journal)

Contents:

6 | Dean's Message
10 | Curriculum transformation continues
11 | Holli Riter appointed Chief Medical Officer
15 | Patient Layla's "jaw in a day"
17 | Just-in-time Homecoming 2020
26 | From the Class of 1970, a story of service
27 | LLUSD manages a pandemic
33 | Imaging Clinic acquires NewTom VGi EVO
35 | Lane Thomsen honored for CE contributions

Antibacterial Effect Of Ginger, Green Tea And Pomegranate Versus Chlorhexidine Using Stevia And Sucrose Sugar, Hagar Abdel Tawab, Maha Niazy, Doaa El Elsharkawy

Al-Azhar Journal of Dentistry

Purpose: To evaluate the antibacterial activity of three natural plant extracts (Ginger, Green tea and Pomegranate peel) versus Chlorhexidine using Sucrose and Stevia Sugar. Materials and Methods: extracts of the three natural materials were prepared where an aqueous extract of green tea was prepared by boiling, and pomegranate peel and ginger were extracted using ethyl alcohol. Carious dentin samples were obtained from carious permanent molars. Streptococcus mutans were isolated and identified. The extracts were compared to chlorohexidine using either no sugar, sucrose or stevia sugar. Antibacterial activity was assessed through the inhibition zone, bacterial count and metabolic activity. Ginger, pomegranate …

Clinical And Radiographic Evaluation Of Piezocision Corticotomy With Bone Graft Guided By 3d-Surgical Template In Maxillary Protrusion (Comparative Study), Omneya Ahmed, Naglaa El Kilani, Samir Ibrahim, Ahmed Salama, Ghada Khalifa

Al-Azhar Journal of Dentistry

Purpose: The intent of the study was to compare the periodontal and bony changes of piezocision corticotomy with bone graft guided by 3D-surgical template in maxillary protrusion versus non grafted one. Patients and Methods: Prospective study included 20 maxillary protrusive female patients with age group ranging between 20 and 50 years. Patients were divided in to group I: treated with piezocision corticotomy without bone graft guided by 3D surgical template. Group II: treated with piezocision corticotomy with bone graft guided by 3D surgical template. CBCT scan was performed of all the patients. Gingival index (GI), probing depth (PD) and CBCT …

Time Of Implant Placement In The Esthetic Zone: Does It Affect The Thickness Of The Labial Bone?, Hanaa Rabiae, Fatma Mohamed, Nahed Abd Elmoniem

Al-Azhar Journal of Dentistry

Purpose: to evaluate the labial bone thickness (LBT) in the esthetic zone of the maxilla after insertion of dental implants: immediately, 4-6 weeks, and 3 months after tooth extraction, by using cone beam computed tomography (CBCT). Patients and methods: Fifteen cases, who had single non-restorable upper anterior tooth or an extracted tooth not exceeding 3 months, were involved in the study. The patients were divided equally into three groups. In group 1, implants were placed immediately after tooth extraction. In group 2, implants were inserted 4-6 weeks after extraction. In group 3, implants were inserted 3 months following tooth extraction. …

Evaluation Of Autogenous Bone Graft Around Dental Implant Alone Or Combined With Melatonin Gel: Randomized Control Trial, Lobna Abdelaziz, Hala Hazzaa, Naglaa Shawki

Al-Azhar Journal of Dentistry

Purpose: The present study was conducted to evaluate the effect of autogenous bone graft on the osseointegration of early loaded dental implant either alone or combined with Melatonin gel. Material and Methods: The study was including 10 patients with 20 numbers of sites and age range of 22-52 years. The study groups were designed in two groups, test group treated surgically with dental implant after application of autogenous bone graft mixed with (1.2mg) melatonin gel. Control group treated surgically with dental implant after application of autogenous bone graft alone. Results: Clinically, in both groups, there was change in gingival thickness …

Comparative Evaluation Of The Effect Of Various Storage Mediums On The Fracture Resistance Of Re-Attached Tooth Fragments: An Ex-Vivo Study, Princy Philomine, Ahmed Waly, Ramesh Venkatesan, Dhivya Pragadesh

Al-Azhar Journal of Dentistry

Purpose: To comparatively evaluate the fracture resistance of re-attached tooth fragments stored in dry, saline, pasteurised bovine milk, egg white and coconut water for 24 hours. Material and Methods: 50 permanent maxillary central and lateral incisors were cut perpendicular to the long axis with a diamond disk. Immediately after fracturing, the fractured fragments were stored in appropriate storage medium for 24 hours and the remaining tooth structure along with blocks were stored again in distilled water until re-attachment. Each fragment was rinsed under distilled water for 5 seconds to remove any remaining storage media. The fragments were re-attached, thermocycled and …

Effect Of Different Anticollagenolytic Agents On Dentin Erosion Before And After Casein Phospho Peptides-Amorphous Calcium Fluoride Phosphate Application, Nourhan Moustafa, Maha Niazy, Essam Naguib, Rasha Afifi

Al-Azhar Journal of Dentistry

Purpose: This study aimed to compare the effect of two anticollagenolytic agents, chlorohexidine and Aloe vera on dentin microhardness and their effect as pretreatments on the remineralization potential of CPP-ACFP. Materials and Methods: For this study, 40 extracted sound human premolars were subjected to artificial erosion and randomly divided to two equal groups (20 premolars each) according to immersion in the tested anticollagenolytic agents (A); group (A1) Aloe vera and group (A2) Chlorhexidine. Each group was further subdivided into two equal subgroups (10 premolars each) according to microhardness measurement (B); group (B1): before CPP-ACFP application and group (B2): after CPP-ACFP …

Impact Of Ball And Magnetic Attachments And Inter-Implant Distance On Retention Of Mandibular Overdenture (An In Vitro Study), Neveen Abd El Rahim

Al-Azhar Journal of Dentistry

Purpose: To evaluate the influence of the attachment type and inter-implant distance on the retention of 2-implant retained mandibular overdenture during 12 months of simulated function. Material and Methods: Three transparent acrylic resin casts simulating a completely edentulous mandible were fabricated. The retentive forces (N) of two implant-retained mandibular overdentures were estimated by a universal testing machine. Six groups were computed on three casts; two ball attachments with inter-implant distances (IIDs) 23mm were placed in the canine, 31mm were placed in the premolar and 40mm were placed in the first molar regions respectively and two magnetic attachments were placed on …

Effect Of Congenital Cleft Lip And Palate Treatment On Bacterial Colonization In Children, Wafik Saleh, Mohammed Hassan, Mostafa Abd El Ghany

Al-Azhar Journal of Dentistry

Purpose : To determine the effect of Inherited Cleft Lip and Palate Management on microbial migration in forked lip and palate (CLP) children. Material and methods: Fifteen forked lip and palate children and fifteen standard children (the control group), aged 3 months to 36 months were selected from the out clinic of Faculty of Dental Medicine, Al-Azhar University for Girls. Dribble samples were collected after the breakfast by inserting sterile cotton gauze in the entry from the jaws before and after construction of obturator. Results: The highest (mean±SD) value of log bacterial count (CFU/μl) was found in the cleft patients …

Evaluation Of Anchorage Loss During Canine Retraction Using Micro-Implant As Temporary Anchorage Device (A Split-Mouth Comparative Study), Nagwa Abou-Elmaaty, Samir Ibrahim, Maha Mohamed

Al-Azhar Journal of Dentistry

Purpose: Anchorage control is considered a keystone for successful orthodontic treatment so this study was to compare and measure the amount of anchorage loss during canine retraction by using micro-implant as a temporary anchorage device. Material and methods: A sample of 10 patients with an age range from 13 to 18 years, requiring extraction of first premolars was selected for this study. A randomized split-mouth study design was used. A nickel titanium closed-coil spring was used for canine retraction on micro-implants placed distal to the upper first permanent molar. In the right side upper first permenant molar was tied back …

Effect Of Repeated Firings On The Color Change And Surface Roughness Of Two All-Ceramic Systems, Sherehan Mohamed, Atef Ahmed, Walaa Mekkawi

Al-Azhar Journal of Dentistry

Purpose: This study aimed to evaluate the effect of repeated firings on the color change and surface roughness of two all-ceramic systems. Materials and Methods: Forty disc shaped ceramic specimens ( 10 mm x 1 mm ) were fabricated from two commercially available all-ceramic system (IPS E.max press, Ivoclar-Vivadent, Schaan, Liechtenstien, Germany and zirconia Nacera Pearl, DOCERAM Medical Ceramics, Germany) (N=20). Color measurement of the specimens was made using Reflective spectrophotometer and surface roughness (Ra) was measured using USB digital profile guage, (Elcometer 224/2, Elcometer Instruments, Great Britain) after 1, 3, 5 and 7 repeated firing. Results: The mean color …

Clinical Assessment Of Platelet Rich Fibrin Matrix In Treatment Of Gingival Recession: A Randomized Controlled Clinical Study, Wessam Shehabeldin, Hamdy Nassar, Mai Attia, Reham Aggour

Al-Azhar Journal of Dentistry

Purpose: to measure platelet rich fibrin matrix PRFM in enhancing root coverage of Miller class I and II gingival recession clinically by coronally advanced flap. Materials and Methods: Eighteen healthy patients were randomly splitted for three groups: group I (Test group): five patients treated using Platelet Rich Fibrin Matrix (PRFM) membrane and coronally advanced flap, group II (Positive Control group): fivepatients treated by collagen membrane and coronally advanced flapand group III (Negative control group):five patients treated only using coronally advanced flap. Recession width(RW), recession depth(RD), and probing pocket depth (PPD)were evaluated at baseline,three months and six months respectively. Results: In …

Evaluation Of Shear Bond Strength Of Glass Ionomer Modified With Natural Biological Products:An In Vitro Study, Bassma Abdelhafeez, Maha Niazy, Essam Naguib, Sara Younis

Al-Azhar Journal of Dentistry

Purpose: The aim of this study was to examine the shear bond strength (SBS) of conventional glass ionomer incorporated (GI) with flax fibers and/or ethanolic extract of propolis (EEP) with and without thermo-cycling. Materials and Methods: We used 40 extracted sound molars were used in the present study and divided into four equal groups: Group (GI) conventional glass ionomer(control), Group(F)GI incorporated with 5% flax fibers, Group (P) GI incorporated with 1% ethanolic extract of propolis (EEP), Group (FP) GI incorporated with 5% flax fibers and 1% ethanolic extract of propolis (EEP). All samples were prepared for shear bond strength assessment …

Antibacterial Effect Of Bioactive Composite Versus Glass Ionomer Using Different Storage Media, Walaa Hassan, Maha Niazy, Mayada Sultan

Al-Azhar Journal of Dentistry

Purpose: To evaluate the antibacterial effect of Bioactive composite versus Glass ionomer using different storage media. Materials and Methods: Three restorative materials were used in this study (Reliafil Lc, Amalgomer and Conventional Glass Ionomer). 90 Disk- shaped specimens (2.5 mm height and 8 mm diameter) were prepared from each material. Groups were divided into three subgroups according to storage media (Acids, artificial saliva and de-ionized water). Bacterial strains were polished at 370c for 24h in Brain Heart Infusion broth which attained from stock cultures. Disk diffusion agar method was used for antimicrobial liability. The inhibition zone diameter around the specimen …

Effect Of Different Denture Base Materials On The Masticatory Muscle Performance In Patients Wearing Single Maxillary Complete Denture: A Cross-Over Study, Doaa Rostom, Ahmed Fayyad, Aliaa Tawfeek

Al-Azhar Journal of Dentistry

Purpose: The aim of the research was to evaluate the masticatory muscle performance with different resilient denture base materials in maxillary single denture. Material and methods: Six patients were included in this cross over study. In the first stage of the study, the patients were instructed to use the denture (PMMA denture base) for 1 month and the masticatory muscle activity was assessed in the second and fourth weeks after delivery. A wash out period of two weeks was applied in this study to eliminate the effect of the previous denture then the denture material was relined to soft liner, …

Antibacterial Efficacy Of Aloe Vera Extract Mouth Wash Versus Chlorhexidine In Pediatrics: An In Vivo Study, Eman Mohamed, Safaa El- Sayed, Samaa Zaghloul

Al-Azhar Journal of Dentistry

Purpose: To assess and compare the antibacterial efficacy of Aloe vera (AV) extract solution and chlorhexidine (CHX) as mouth washes for children. Material and methods: Forty children of age range (5- 12) years were enrolled in this study. The participants were randomly divided into two equal groups; A& B (n= 20). Participants were asked to rinse with 10 ml of either 100% AV extract or 0.125% CHX mouthwashes (in group A & B respectively) for 4 days twice daily (after breakfast and lunch) for one minute and not to rinse with water thereafter. Saliva samples were collected at 0 (base …

Effect Of Blood Contamination On Marginal Adaptation Of Mta And Endosequence Root Repair Material As A Retrograde Filling, Marwa Saker, Mohammed Khalefa, Hemat El-Sheikh

Al-Azhar Journal of Dentistry

Purpose: This study was designed to compare marginal adaptation of MTA and Endosequence Root Repair Material (ERRM) as retrograde filling materials. Materials and methods: 40 maxillary anterior teeth were prepared and obturated with gutta-percha and AH plus using lateral compaction technique. Apical 3mm of the roots were resected and retrograde cavities were prepared with diamond coated ultrasonic retrotip. Teeth were divided randomly into two main groups (I,II) according to blood contamination of retrograde cavities and every group then divided into two sub-groups (A,B) according to retrograde materials (MTA,ERRM). Teeth sectioned longitudinally and examined for marginal gap using SEM. Results: revealed …

Microleakage Evaluation Of Class V Resin Composite Restorations With Fluoride Iontophoresis Application On Tooth Surface(An In Vitro Study), Mohamed Wakwak

Al-Azhar Journal of Dentistry

Purpose: This study was directed to evaluate the microleakage of class V composite restoration after fluoride Iontophoresis application on tooth surface. Materials and Methods :60 freshly extracted human non carious premolar teeth were used box-shaped Class V cavities (4x2x2 mm) were prepared on the gingival one third of the tooth with occlusal margin in enamel and gingival margin in cementum half of the teeth received fluoride Iontophoresis application (FI), while the other half were not received any treatment (NF). Teeth were restored with Z250 resin composite and Kalore resin composite. The specimens stored for one month, three months and six …

Using Mri And Nasopharyngeal Endoscopy For Assessment Of Soft Palate Following Cleft Palate Surgical Repair Using Two Surgical Techniques, Maiada Awadd, Susan Hassan, Hatem Al Ahmady, Ahmed Mohamed

Al-Azhar Journal of Dentistry

Purpose: to compare and assess the results obtained by using 2 different surgical techniques that utilize two stage palatoplasty to repair the palate, Furlow’s technique and intravelar veloplasty. Material and Methods: This study was performed on 14 patients suffering from cleft palate, patients were divided into 2 groups, in group I Furlow’s technique was used in palatal repair, in group II IVVP technique was used in palatal repair. All cases were selected from the Outpatient Clinic of the Faculty of Dental Medicine, Al-Azhar University for Girls. Results: Postoperative results of the MRI showed that the velum and the length of …

Role Of Expression Ki-67 In Diagnosis Of Oral Cancer, Amani Mohamed, Osama El-Shall, Naglaa El-Kilani

Al-Azhar Journal of Dentistry

Purpose: The study was designed to assess the effect of Ki-67 on oral squamous cell carcinoma (OSCC) with the correlation of biomarker level and grades of OSCC. Material and methods: 26 samples (life biopsies) were inspected in this study, 20 of them are OSCC and 6 are normal. The specimens were processed by the routine histological procedure to prepare them for histopathological and immuno-histochemical examinations. Antibodies expression with anti-Ki-67 antibody was evaluated using image analysis for area percentage with the Leica Q550 image analyzer computer system. Statistical analysis was performed using ANOVA test. Results: Histopathological examination of oral squamous cell …

Effect Of Different Concentrations Of Double Antibiotics Used In Regenerative Endodontic On Microhardness And Fracture Resistance Of Radicular Dentin, Hadeer Mostafa, Wael Kamel, Maha Elhosiny

Al-Azhar Journal of Dentistry

Purpose: to show the effect of different concentrations of double antibiotics paste (DAP) 1, 0.1,0 .01mg/ml used in regenerative endodontic on microhardness and fracture resistance of radicular dentin. Material and methods: Forty single rooted teeth were prepared and randomized into three groups according to DAP concentration (10 samples each) and ten samples were availed as control group. Group I: root canal contained 1mg /ml DAP. Group II: root canal contained 0.1mg /ml DAP. Group III: root canal contained 0.01 mg/ml DAP. Samples were stored at 37 0c with 100% humidity for three weeks then DAP was removed by irrigation with …

Commencement Program 2020 (School Of Dentistry), Loma Linda University

Commencement Programs

CONTENTS

2 | Message from the President

3 | Message from the Dean

4 | University History Highlights

6 | Candidates for Degrees

Commentary: Phytocannabinoids As Therapeutic Agents To Combat Chronic Gingival Disease., Nick Narek Ohanian

Pacific Journal of Health

The therapeutic potential of cannabis has been harnessed for thousands of years yet the United States Food and Drug Administration (FDA) has still not approved cannabis as a safe or effective drug. The FDA has, however, approved the manufacturing of pharmaceutical drugs, which contain a “synthetic version of a substance that is present in the marijuana” and other compounds that mimic its action. A search of the US National Library of Medicine and National Institute of Health for keywords “CBD” and “Periodontitis” together yields only 2 publications. Although the current State and Federal regulations on the use of cannabis for …

Replacing A Single Tooth: Single Implant Vs. Three Unit Bridge, Ibeth Erazo, Aneeza Hussain

Publications and Research

There are more than two options for restoring a single tooth but our research includes a three-unit bridge and a single-tooth implant as the main options. In this paper, we discuss the advantages and disadvantages of these methods and the factors that must be considered when choosing between them for the replacement of a single tooth. Although in some cases a three-unit bridge is the most appropriate choice, implants have the advantage of allowing preservation of the integrity of sound teeth adjacent to the edentulous area. Many factors must be considered when choosing between a three-unit bridge and an implant …

Health-Related Anxiety In The Management Of Oral Soreness In An Hivseropositive Patient, Masita Mandasari, Zulvia Oktanida Syarif, Febrina Rahmayanti

Journal of Dentistry Indonesia

The number of people living with HIV (PLHIV) has been increasing since the first known case in the early 1980s. However, PLHIV can also experience comorbidities, such as health anxiety. In the oral cavity, anxiety is often associated with the etiology of parafunctional habits. Anxiety can be measured using self-administered instruments, such as the Hospital Anxiety and Depression Scale (HADS) and Short-Health Anxiety Inventory (SHAI), which is specifically used in the medical setting. Objectives: We are describing a case of HIV positive patient with health anxiety who presented to the oral medicine clinic in our hospital with a complaint of …

Erupted Compound Odontoma Associated With Missing Tooth: A Rare Case Report, Weeraya Tantanapornkul, Ruchadaporn Kaomongkolgit, Sirilawan Tohnak, Lalitkorn Promma, Soranan Chantarangsu

Journal of Dentistry Indonesia

Odontomas are one of the most frequently found odontogenic tumors that consist of dental tissues. Odontomas have been classified into two types: compound and complex odontomas. They are usually discovered on routine radiographic examination. In rare cases, the odontoma erupt into the oral cavity, called an erupted odontoma. The first case was published in 1980, and since then, there have been not more than 50 cases being reported in the literature. Most of the reported cases are erupted complex odontoma. This case report represents a rare case of an erupted compound odontoma in a young patient who came with the …

Coronavirus Transmission In The Dental Setting, Susan H. Davide, Anty Lam, Christine Macarelli

Publications and Research

Oral health professionals should remain up-to-date on the coronavirus, and clinical measures to prevent its transmission in the dental setting.

Comparison Of The Cleaning Effectiveness And Incidence Of Dentinal Defects After Biomechanical Preparation Using Different Ni Ti Rotary Instruments In Root Canals, Maiada Mohammed, Wael Kamel, Mohammed Rokaya

Al-Azhar Journal of Dentistry

Purpose: This study was directed to evaluate the cleaning effectiveness& the dentinal defects incidence after preparation with different Ni-Ti rotary instruments in permanent molar root canals. Materials and Methods: A 60 human permanent lower first molars were used in this study. According to the Ni-Ti rotary system used in canal instrumentation, specimens were divided into 3 main groups (n=20) (One Shape, HyFlex EDM and XP-Endo Shaper). Each system was used as the suggested settings by manufacture. Each group was received Copious irrigation with 2.6% NaOCl was performed after the use of each file and finally with combination of 17% EDTA …

Evaluation Of Electromyographic Activity Concomitant To Class Ii Correction Using Carrier Distalizer Appliance, Amira Ahmed, Samir Ibrahim, Maha Mohamed

Al-Azhar Journal of Dentistry

Purpose: To assess the electromyographic activity of oral muscles concomitant to Class II malocclusion correction using Carrier Distalizer appliance. Materials and Methods: 10 female patients with age ranged between (18-21) years old were selected for this study. All patients were examined to fulfill the inclusion criteria. All patients in this study underwent radiographic evaluation (panoramic and lateral cephalometric) and electromyographic evaluation before and after Class II correction using Carrier Distalizer appliance. Study duration for patients was six months. Results: The result of this study showed that no significant changes occurred in skeletal measurements except increase angle of convexity. Regarding electromyographic …

Fracture Resistance And Retention Of Three Different Endocrown Materials, Nada Eisa, Eman Essam, Rania Amin, Zainab El Sharkawy

Al-Azhar Journal of Dentistry

Purpose: The purpose of the current study was to assess fracture resistance and retention of three different endocrown materials. Materials and Methods: Thirty (n=30) sound mandibular molars were endodontically treated and according to endocrown constructed material appointed arbitrarily into 3 groups (n=10 each); Group (1): IPS e.max CAD, Group (2): Vita Suprinity and Group (3): Vita Enamic. Samples of each group were additionally subdivided into2 subgroups (n=5 each) according to fracture resistance and retention tests. Subgroup (A): Samples subjected to fracture resistance test and mode of failure. Subgroup (B): Samples subjected to retention test and mode of failure. The samples …