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The Incidence Of Prosthetic Materials On Wear Mechanism Of Antagonist Dentition: A Review, Mireille Rahi, Elias Smaira, Elie E. Daou Oct 2014

The Incidence Of Prosthetic Materials On Wear Mechanism Of Antagonist Dentition: A Review, Mireille Rahi, Elias Smaira, Elie E. Daou

International Arab Journal of Dentistry

Wear is a process that includes both natural teeth and restoration materials. Wear mechanism remains unclear and conflicting results are still found. It is normally a slow multifactorial process. Various influencing factors have been cited through the literature.This paper presents an overview of the prosthetic materials commonly used and their implication in the wear process of antagonist teeth or prostheses. A search was conducted on PubMed and Elsevier using the following key-words: wear, wear resistance, abrasiveness, prostheses wear, prostheses resistance, restorations wear, prostheses material, abrasion etiology and abrasion physiopathology. Patient and material–related factors were reported. Comparison of the protocols remains …

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Periodontal Health Status Of Saudi Patients Undergoing Orthodontic Treatment, Azzam Al-Jundi Feb 2014

Periodontal Health Status Of Saudi Patients Undergoing Orthodontic Treatment, Azzam Al-Jundi

International Arab Journal of Dentistry

The growing awareness about dental aesthetics and functionality in the general population has led to more and more people seeking orthodontic treatment.The patient’s ability to achieve and maintain good overall oral hygiene and prevent periodontal disease is fundamental while undergoing orthodontic treatment. This study was done to evaluate the periodontal health status of Saudi patients scheduled for fixed orthodontic treatment.Fifty patients (12-26 years old) were selected from orthodontic clinics of King Abdul-Aziz Medical City of National Guard, Riyadh, Saudi Arabia. The periodontal health status of the patients was evaluated using the plaque index (PI), the orthodontic plaque index (OPI) and …

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Détermination De L’Âge Dentaire En Odontologie Médico-Légale, Nada El Osta, Lana El Osta Feb 2014

Détermination De L’Âge Dentaire En Odontologie Médico-Légale, Nada El Osta, Lana El Osta

International Arab Journal of Dentistry

The study of the dentition is a common manner for age determination. In this article, we will discuss the pertinent methods to estimate the dental age of unknown dead or young alive people. In children, histological techniques as well as tooth eruption or calcification are appropriate to assess dental age in postmortem. After 15 years, it becomes difficult to estimate the age, since the phenomena related to the tooth eruption or calcification is completed. Therefore, the rate of racemization and Lamendin method are pertinent to determine the age adults in postmortem. Finally, in young alive people where age determination has …

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Editorial Guest, Essam Osman Prof. Feb 2014

Editorial Guest, Essam Osman Prof.

International Arab Journal of Dentistry

“We are what we repeatedly do. Excellence, therefore, is not an act, but a habit.” Aristotle

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Prevalence Of Hypodontia In Permanent Dentition In A Sample Of Sudanese University Students, Amal Abu Affan, Abeer Serour Feb 2014

Prevalence Of Hypodontia In Permanent Dentition In A Sample Of Sudanese University Students, Amal Abu Affan, Abeer Serour

International Arab Journal of Dentistry

The congenital absence of one or more permanent teeth is a common dental anomaly. It can seriously affect a young person, both physically and emotionally, particularly when the missing tooth is located in the anterior region of the maxillary dental arch. The aim of the present descriptive cross-sectional study was to evaluate the prevalence of hypodontia of the permanent dentition and to determine the most common congenitally missing permanent teeth in a sample of 2401 Sudanese university students.A total of 100 congenitally missing teeth were observed in 64 students (7 males and 57 females); the overall prevalence of hypodontia in …

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A Novel Nano-Calcium Carbonate-Polyurethane-Based Root Canal Obturation Material: Synthesis And Evaluation Of Some Physical Properties, Jaafar Bahar, Salim Alsalim, Raad Niama Dayem Oct 2013

A Novel Nano-Calcium Carbonate-Polyurethane-Based Root Canal Obturation Material: Synthesis And Evaluation Of Some Physical Properties, Jaafar Bahar, Salim Alsalim, Raad Niama Dayem

International Arab Journal of Dentistry

The aim of this study was to prepare a new root canal obturation material named “nano-calcium carbonate-polyurethane” and to evaluate three of its physical properties which are solubility, water sorption and radiopacity.Polycarbonate 1, 6-hexamethylene diisocyanate, NCO 49.79%, and 1, 4-butanediol were mixed together to form polycarbonate-based thermoplastic polyurethane (TPU). Additive materials like nano-calcium carbonate powder, zinc oxide, calcium hydroxide and barium sulfate with different ratios were blend together with the polycarbonate-based thermoplastic polyurethane to form the final obturation material.The nano-calcium carbonate-polyurethane was found to be a promising root canal filling material; the percentages of solubility, water sorption and radiopacity were …

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A Comparative Study Of Solubility Between Resin Cement And Self-Adhesive Resin Cement, Rahaf Kurdi, Elizabeth Sarkis, Nazera Sarkis Jun 2013

A Comparative Study Of Solubility Between Resin Cement And Self-Adhesive Resin Cement, Rahaf Kurdi, Elizabeth Sarkis, Nazera Sarkis

International Arab Journal of Dentistry

Resin cements have been largely used for luting indirect restorations due to their bonding abilities to the tooth structures and the increase of the restorations stability; however their solubility can negatively affect the restoration durability. The aim of this in vitro study was to evaluate and to compare water solubility values of conventional resin cement with self-adhesive resin cement according to ISO 4049 specification. Two commercial dental luting cement materials were selected: Conventional resin cement (Resicem™ /Shofu) and self-adhesive resin cement (Total Cem, Itena). Ten discs were prepared of each cement material. The discs were made according to the manufacturer’s …

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Effect Of Different Polishing Procedures On Color Stability Of Nanocomposites In Different Mouth Rinses, Nazish Fawad Jun 2013

Effect Of Different Polishing Procedures On Color Stability Of Nanocomposites In Different Mouth Rinses, Nazish Fawad

International Arab Journal of Dentistry

The aim of this in vitro study was to evaluate the effect of two polishing procedures on color stability of nanocomposites immersed in three mouth rinses. One hundred twenty disc-shaped specimens (10x2mm) of nanocomposite Filtek™ Z350 XT, shade A3, were prepared. Specimens were distributed into 3 groups of 40 discs each: Group 1) Filtek™ Supreme XTE without polishing; group 2) Filtek™ Supreme XTE + Sof-Lex™ pop-on discs and group 3) Filtek™ Supreme XTE + PoGo® polishers. Initial color values were evaluated using the CIELAB scale. The discs in each group were randomly divided into 4 subgroups (n=10). Each subgroup was …

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A Radiographic Study Of Mandibular Nutrient Canals In Patients With Periodontal Diseases, Bhandarkar Gowri Pandarinath Feb 2013

A Radiographic Study Of Mandibular Nutrient Canals In Patients With Periodontal Diseases, Bhandarkar Gowri Pandarinath

International Arab Journal of Dentistry

Nutrient canals are intra-osseous spaces or channels containing nerves and blood vessels. They are observed more frequently in the mandibular anterior region as radiolucent horizontal lines of varying widths, usually situated interproximally and inferiorly to the teeth. The aims of this investigation were to evaluate radiographically the presence of nutrient canals in 500 patients with periodontitis and 500 controls, to correlate their presence with severity of bone loss and trabecular bone pattern and to correlate the type of trabecular bone pattern to the age of the patient, bone loss and number of nutrient canals.

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Malignant Melanoma Of The Anterior Mandibular Gingiva: A Case Report, Bhandarkar Gowri Pandarinath, Shetty Kushal Feb 2013

Malignant Melanoma Of The Anterior Mandibular Gingiva: A Case Report, Bhandarkar Gowri Pandarinath, Shetty Kushal

International Arab Journal of Dentistry

Oral malignant melanoma is an infrequent neoplasm making up less than 1% of all melanomas; its behavior is more aggressive when compared to melanomas of the skin. We present a rare case of a 50-year-old male patient with a stage II oral malignant melanoma of the anterior mandibular gingiva treated with surgery and radiotherapy.

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Coupled Fixed Point Theorems For $F$-Invariant Set, Wutiphol Jan 2013

Coupled Fixed Point Theorems For $F$-Invariant Set, Wutiphol

Applied Mathematics & Information Sciences

In this paper, we extend and complement some recent results of coupled fixed point theorems of Luong and Thuan in [N. V. Luong, N. X. Thuan, Coupled fixed point theorems for mixed monotone mappings and an application to integral equations, Computers and Mathematics with Applications 62 (2011) 4238-4248.] by weaken the concept of the mixed monotone property. The example of a nonlinear contraction mapping which is not applied by the results of Luong and Thuan, but can be applied to our results is given. The presented results extend and complement results of Luong and Thuan and some known existence results …

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Étude Histologique In Vivo De La Réaction Du Tissu Pulpaire Après Coiffage Pulpaire Direct Avec Le Ciment De Portland Modifié, Toni Sarkis, Issam Khalil, Alfred Naaman Oct 2012

Étude Histologique In Vivo De La Réaction Du Tissu Pulpaire Après Coiffage Pulpaire Direct Avec Le Ciment De Portland Modifié, Toni Sarkis, Issam Khalil, Alfred Naaman

International Arab Journal of Dentistry

Capping an exposed pulp in order to maintain the vitality of the pulp is the main purpose of pulp capping procedure. The success of this procedure depends on the capacity of pulp capping agent to stimulate pulp tissue repair and dentin bridge formation. Mineral Trioxide Aggregate (MTA) is a biocompatible agent that allows growth, proliferation and differentiation of mesenchymal cells in the pulp. Despite its many advantages, the handling of the MTA and its long setting time (4 hours) oblige the clinician to postpone the restoration to another day. A new product, called CPM (ciment de Portland modifié), has been …

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Chairside Diagnostic Test Kits In Periodontics – A Review, Sachin Malagi Oct 2012

Chairside Diagnostic Test Kits In Periodontics – A Review, Sachin Malagi

International Arab Journal of Dentistry

Traditionally, periodontal diseases have been diagnosed by radiographic and clinical exams, including the assessment of plaque with a plaque index (PI), gingival inflammation with the bleeding on probing index (BOP), probing pocket depth (PPD) and clinical attachment loss (CAL). Nowadays, clinical chairside tests are in use for more precise molecular diagnostics and treatments. This review describes some diagnostic test kits on the market that can facilitate the clinical exams and the establishment of a diagnosis.

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Ewing’S Sarcoma Of The Mandible: A Case Report, Bhandarkar Gowri Pandarinath, Shetty Hobeiche Oct 2012

Ewing’S Sarcoma Of The Mandible: A Case Report, Bhandarkar Gowri Pandarinath, Shetty Hobeiche

International Arab Journal of Dentistry

Ewing’s sarcoma of the jaw is a primitive malignant tumor of the bone. It is commonly seen in children and adolescents. Its occurrence in the head and neck region is unusual and generally involves most frequently the mandible rather than the maxilla. The present case discuss the clinical, diagnostic (radiographic, histopathologic) and therapeutic findings of an ES of the mandible in a 14-year-old boy. Early detection of such lesions is difficult because the signs and the symptoms do not appear until the lesion has progressed considerably. This case elucidates the importance of professional knowledge of the relevant aspects of malignant …

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Diabetes: A Risk Factor For Periodontitis, Shaju Jacob, Sonia Nath, Muthu Arunchalam Jun 2012

Diabetes: A Risk Factor For Periodontitis, Shaju Jacob, Sonia Nath, Muthu Arunchalam

International Arab Journal of Dentistry

Severe periodontitis is the major reason for tooth loss in adults. Diabetes is one of the major risk factor for progression of periodontitis. Over 200 articles have been published in the English literature in the past 50 years examining the relationship between these two chronic diseases. The purpose of this review is to provide the reader with practical knowledge concerning the relationship between diabetes mellitus and periodontal diseases. Pubmed and medInd were searched and suitable publications were reviewed. Data interpretation is often confounded by varying definitions of diabetes and periodontitis and different clinical criteria applied to prevalence, extent, and severity …

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Oral Symptoms Leading To Diagnosis Of Sarcoidosis, D.R. Mahesh Jan 2012

Oral Symptoms Leading To Diagnosis Of Sarcoidosis, D.R. Mahesh

International Arab Journal of Dentistry

Sarcoidosis is a multisystemic granulomatous disease of unknown etiology that may manifest in the oral and maxillofacial region. Enlargement of the major salivary glands may be the first identifiable sign of this condition, which is often characterized by a variety of nonspecific symptoms. In this report, we present the case of a patient suffering from xerostomia, dysgeusia, burning sensation, xerophthalmia and bilateral parotid gland enlargement. The diagnosis of systemic sarcoidosis was established, based on the clinical associated symptoms as well as the histopathologic results of a biopsy of labial minor salivary glands.

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Étude De L'Effet De La Convergence Des Parois Axiales Sur La Rétention Des Couronnes Scellées, Pamela Bejjany, Nouhad Rizk Jan 2012

Étude De L'Effet De La Convergence Des Parois Axiales Sur La Rétention Des Couronnes Scellées, Pamela Bejjany, Nouhad Rizk

International Arab Journal of Dentistry

The aim of this in vitro study is to investigate the variation in the retention of ceramo-metallic crowns on identical dental preparations, differing only by the convergence of their axial walls. Materials and methods: Sixty molars were prepared; the convergence of the axial walls was of 20 degrees (maximum convergence), 30 degrees (acceptable convergence) or 60 degrees (critical convergence putting at risk the durability of treatment). Infrastructures were sealed using two types of ciment- a resin and a glass ionomer ciments- for the same axial convergence. Results: for small angulations (<30 degrees), the use of glass ionomer ciment provided a higher retention than that provided by the resin ciment. For conical dental preparations (≥30 degrees), bonding with resin ciment offered a better retention and a greater resistance to displacement forces.

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L’Échec Implantaire : Étude Rétrospective, Hiam Wehbé, Nada Bou-Abboud Naaman Jan 2012

L’Échec Implantaire : Étude Rétrospective, Hiam Wehbé, Nada Bou-Abboud Naaman

International Arab Journal of Dentistry

The rehabilitation of patients with failing or missing dentition using titanium implants has dramatically changed in the last decades. Despite the predictability of implant therapy, failures that mandate implant removal do occur. The aim of our study was to determine the failure rates of implants placed during the last nine years at the dental clinic of the Faculty of Dental Medicine at Saint-Joseph University, Beirut. 640 individuals received dental implants; failures were clustered in 75 (11.7%) patients (27 men and 48 women, mean age 49.66 ±13.4 years). The total failure rate was 5.68%. Most failures were early (66.3%) and a …

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Global Prevalence Of Periodontitis: A Literarure Review, Shaju Jacob Jan 2012

Global Prevalence Of Periodontitis: A Literarure Review, Shaju Jacob

International Arab Journal of Dentistry

The prevalence of periodontitis is dependent on the studied population and the case definition adopted. Periodontal diseases assume a greater global importance as the senior population is on the rise in most countries. The aim of this article is to review the global prevalence of periodontitis. Studies describing the prevalence of periodontitis in the world were searched through various indices using the key words ‘periodontitis, national survey, prevalence’ and reviewed. Many national surveys have used the WHO method for assessing prevalence. Yet several studies have not used the community periodontal index (CPI) for periodontitis case definition. Most surveys have used …

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Periodontitis As A Risk Factor For Preterm Low-Birth Weight Babies: A Litterature Review, Shaju Jacob Sep 2011

Periodontitis As A Risk Factor For Preterm Low-Birth Weight Babies: A Litterature Review, Shaju Jacob

International Arab Journal of Dentistry

Periodontitis is reported to be associated with preterm low-birth weight (PLBW) and is claimed to be one of its risk factors. This literature review examines evidence supporting the role of periodontitis in the occurrence of PLBW. PubMed, medIND and WHO indices were searched for published studies, (cross-sectional, case-control, longitudinal, experimental) using the key words: pregnancy, periodontitis. There is enough evidence to implicate periodontitis as a risk factor for preterm low-birth weight even though recent studies haven’t shown a significant relation. New researches with population-specific definitions of PLBW and periodontal diseases must be done for a better assessment of the relation …

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Statut Bucco-Dentaire Au Sein D’Une Population Gériatrique Libanaise : Étude Pilote, Nada Farhat Mchayleh, Nada El-Osta, Rafif Sleiman, Joyce Tannous, Hani Tohmé, Paul Tohmé Sep 2011

Statut Bucco-Dentaire Au Sein D’Une Population Gériatrique Libanaise : Étude Pilote, Nada Farhat Mchayleh, Nada El-Osta, Rafif Sleiman, Joyce Tannous, Hani Tohmé, Paul Tohmé

International Arab Journal of Dentistry

According to the World Health Organization (WHO), oral health status represents an indicator of the physical and psychological general state of a person, especially among the elderly. Many epidemiological studies have studied oral health among the geriatric population. In Lebanon, the lack of publications related to this subject encouraged us to realize a pilot study in order to evaluate oral health status among a Lebanese geriatric sample from low socioeconomic class. This study was conducted in a volunteer associational center (“Resto du Coeur”), by the Department of ediatric and community dentistry, in collaboration with the Department of prosthodontics of the …

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Scientific International Meetings 2011, Hiam Wehbé Mar 2011

Scientific International Meetings 2011, Hiam Wehbé

International Arab Journal of Dentistry

List of Scientific international meetings 2011.

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Quantitative Evaluation Of Adhesion Of Streptococcus Mutans To Three Orthodontics Adhesives: An In Vitro Study, Adib Kassis, Dolla Sarkis, André Adaimé Mar 2011

Quantitative Evaluation Of Adhesion Of Streptococcus Mutans To Three Orthodontics Adhesives: An In Vitro Study, Adib Kassis, Dolla Sarkis, André Adaimé

International Arab Journal of Dentistry

L’objectif de cette étude in vitro est de comparer l’adhésion des S. mutans sur trois groupes d’adhésifs différents. 108 couronnes dentaires exemptes de carie et autres défauts amélaires sont choisies et calibrées à 4x3 mm2 avec 2mm d’épaisseur. Un échantillon de 36 brackets collés sur ces facettes d’émail avec du “Transbond XT™” (groupe de contrôle) est comparé respectivement à deux groupes d’échantillons identiques collés avec deux adhésifs différents “Transbond Plus™ Self Etching Primer” avec “Transbond XT™” (fluor) et “Clearfil Protect Bond™” avec pâte “Kurasper F™” (antibactérien et fluor). La méthode de culture cellulaire, Kit Dentocult, est adoptée pour compter les …

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L’Influence De La Technique De Pose Sur L'Adaptation Marginale Du Mta : Étude Comparative In Vitro, Diana Abla, Alfred Naaman Mar 2011

L’Influence De La Technique De Pose Sur L'Adaptation Marginale Du Mta : Étude Comparative In Vitro, Diana Abla, Alfred Naaman

International Arab Journal of Dentistry

Teeth with open apices require a particular approach, which is to create an apical barrier and to hermetically seal large foramina. The objective of this study was to compare, in vitro, the apical seal obtained with MTA after its introduction into the canal with two different techniques. For this purpose, 102 maxillary and mandibular extracted teeth were selected. Root canals were shaped and randomly divided into two groups (n= 50 per group). The last five millimeters (mm) were filled with white MTA by two different techniques: MTA powder mixed with distilled water and MTA powder and distilled water introduced separately. …

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Étude In Vitro De La Variation Dans Le Temps Du Taux De La Densité Optique De Quatre Types De Matériaux Pour Prothèses Provisoires, Nicole Harrak, Pascal Habre-Hallage Mar 2011

Étude In Vitro De La Variation Dans Le Temps Du Taux De La Densité Optique De Quatre Types De Matériaux Pour Prothèses Provisoires, Nicole Harrak, Pascal Habre-Hallage

International Arab Journal of Dentistry

The stability of the color of the provisional crowns is particularly important when the treatment plan requires temporary restorations. This stability depends on the capacity of the material to resist absorption and crumbling in solutions. The aim of this article was to evaluate, in vitro, the variation of the rate of the optical density during 15 days of four types of provisional materials soaked in two solutions. Four types of provisional materials available on the Lebanese market: two polymethyl methacrylates (PMMA: Jet®, Tab2000®) and two composite resins (Integrity® and Tempspan®) were evaluated after 1,7 and 15 days of immersion in …

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Field Cancerization Of Oral Cavity: A Case Report And Its Clinical Implications, Raghavandra Kini, Vathsala Naik, Smit Singla Mar 2011

Field Cancerization Of Oral Cavity: A Case Report And Its Clinical Implications, Raghavandra Kini, Vathsala Naik, Smit Singla

International Arab Journal of Dentistry

En 1953, Slaughter et coll. ont proposé le concept de champ de cancérisation en étudiant la présence, à l’échelle histologique, de cellules anormales entourant le carcinome épidermoïde. Il a été observé que tout l’épithélium au-delà des frontières de la tumeur présentait des changements histologiques, en plus d’une zone indépendante libre de malignité. En conclusion, l’épithélium subit un changement, peut être en raison de l’exposition à des substances cancérigènes et devient donc plus propice au développement de plusieurs foyers de transformation maligne. Ces observations aident à expliquer la haute incidence de écidive, malgré l’excision tumorale associée ou non à d’autres thérapies. …

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