Table of content

Journal of Oral and Dental Research

مجلة طب الفم والاسنان

ISSN: 23106417
Publisher: Iraqi Association for Oral Research
Faculty:
Language: English

This journal is Open Access

About

The Journal of Oral and Dental Research (JODR) is an international peer‐reviewed scientific journal. The aim of the JODR is to publish high standard original papers related to dental, oral and craniofacial structures in health and disease. Basic research, clinical case studies and reviews will be considered for publication. The journal will be published biannually online. The JODR is the official journal for the Iraqi Association for Oral Research, the Iraqi Division of the International Association for Dental Research.
The publication will be on a rolling basis, with manuscripts being published on the site as soon as they make it through the peer-review process. This increases the exposure of the articles and keeps the JODR current. Manuscripts are now being accepted and submissions are welcome from authors from around the world, for basic research, case reports and literature reviews.

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Table of content: 2013 volume:1 issue:1

Article
RAMUS HEIGHT AND ITS RELATIONSHIP WITH SKELETAL AND DENTAL MEASUREMENTS

Authors: Yassir A. Yassir
Pages: 1-5
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Abstract

Background: The purpose of this study was to assess mandibular ramus height and to assess the relationship of ramus height with various craniofacial and dental measurements in a sample of Iraqi adults with skeletal and dental Class I. Materials and method: The sample consisted of 95 Iraqi adults (54 females and 41 males) having normal occlusion and Class I skeletal pattern aged between 18 and 31 years. Each individual was subjected to clinical examination and digital true lateral cephalometric radiography. The radiographs were analyzed using AutoCAD 2007 software computer program to de- termine ten linear and seven angular measurements. Descriptive statistics were obtained and independent samples t-test was performed to evaluate the gender differences, while Pearson’s correlation coefficient test was used to identify correlations between ramus height and other measurements. Results: All linear measurements were significantly higher in males, while angular measurements showed non-significant differences between males and females, except for SN-MP, SN-PP, and N-S-Ar angles which were significantly higher in fe- males than in males. For both genders, there were significant positive correlations between ramus height and posterior facial height, maxillary and mandibular molar dentoalveolar heights, while there were significant negative correlations with SN-MP, PP-MP, and Ar-Go-Me angles. Ramus height in females showed a significant positive correlation with N-S-Ar angle, and a significant negative correlation with S-Ar-Go angle. Conclusions: Ramus height was directly correlated with intermaxillary space in the posterior region, and inversely correlated with angles of mandibular rotation.


Article
Changes in Color and Roughness with Laser Bleaching using different Peroxide Concentrations

Authors: Fadi Al Hano
Pages: 6-12
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Abstract

Purpose: The use of different H2O2 concentrations for in-office bleaching has been questioned. Thus, the aim of this study was to evaluate the efficiency of laser bleaching on color changes and surface roughness of bovine enamel with different peroxide concentrations. Materials and methods: Forty eight bovine incisors cleaned and labial surface polished up to #1200. Half of them were artificially stained with black tea and divided into three subgroups and bleached according to the concentration of H2O2 (15%, 25% and 35% ) (n=8). Specimens were bleached with laser hybrid system (DMC Whitening Lase II, Sao Paulo, Brazil). CIE Lab color system was used to evaluate color using Vita Easyshade Spectrophotometer (Ivoclar Vivadent, Liechtenstien). The remaining specimens were used for surface roughness evaluation following bleaching. The enamel roughness (Ra) values were measured by Stylus Profilometer (Suf-Corder SE 1200, Tokyo, Japan) and Atomic force microscopy (AA3000,Bosten,USA) before and after bleaching. Data were analyzed with Paired sample T-test to evaluate color changes and Ra values at each concentration. ANOVA and Tukey test were used to evaluate the difference between the groups with different bleaching agent concentrations. All tests were computed at 5% significance level. Results: Significant increases in degree of lightness (L*) values observed following bleaching at all concentrations. Different concentrations of peroxide produced significantly different Ra values. Bleaching with 35% agent produced significantly higher L* value than 15% but similar to 25%. Exposing enamel to high peroxide concentration (25% and 35%) significantly increased Ra value in comparison to unbleached enamel. Conclusion: Color changes and surface roughness of bovine enamel were influenced by hydrogen peroxide concentrations of DMC laser bleaching system.


Article
A pilot double blinded clinical trial to compare between Tramadol HCL and Lidocaine HCL as local anaesthesia amongst hospital-outpatient adult dental attendees Mosul-Iraq

Authors: Tahani A. Alsandook --- Yahya A. Al-Haideri
Pages: 13-16
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Abstract

Aim of the study: The aim of the current study is to compare the local anesthetic action of tramadol HCL (with adrenaline) and lidocaine HCL (with adrenaline) in minor oral surgery. Method: A double blind study including 124 patients, requiring minor oral surgery (conventional tooth extraction, surgical removal of impacted teeth and periapical surgery) in the lower molar teeth, allocated randomly into two groups: Group A (n=62), in which each patient received initial dose of one dental cartridge, 1.8ml, from drug A (36mg of Lidocaine HCL with (0.0225mg) adrenalin), for conventional tooth extraction, doubled in case of surgical removal of impacted tooth and periapical surgery. Group B (n=62) received one dental cartridge, 1.8ml, from drug B (50 mg of tramadol HCL and (0.0225mg) adrenalin diluted to 1.8 ml by distilled water), again this dose was doubled in case of surgical removal of impacted tooth and periapical surgery. For each patient the onset of anesthesia, number of cartridges used, duration of surgery and the degree of pain (with a 10-cm visual analog scale VAS), had been recorded during the operation.Postoperatively, the patients were instructed to record exactly when the parasthesia disappear and any adverse effects such as nausea andor vomiting on the first day of operation. Result: there was no significant difference between the two study groups in the number of cartridges (1.33/±0.510, 1.37/± 0.519)nor the onset of anesthesia(2.95/±1.46, 3.14/±1.31) minutes, intraoperative pain (0.1935/±0.697, 0.2096/±0.656), duration of surgery (12.77/±10.51, 14.11/±11.66) minutes, and side effects. However there was a significant difference in duration of anesthesia(153.14/±35.10, 117.11/±26.88) minutes, where the group A achieved longer duration of action of local anesthesia. Conclusion: These study findings suggested that Tramadol HCL can be used as alternative to Lidocaine HCL in combination with adrenaline to achieve local anesthesia in situation where Lidocaine HCL is contraindicated or when adequate local anesthesia with minimal paraesthesia is required. Validation and replication of these study findings should be considered in future research.


Article
Parent’s Perception on the Importance of their Children’s First Dental Visit (A cross-sectional Pilot Study in Malaysia)

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Abstract

Introduction: Understanding parental perceptions about early childhood oral health is important in order to develop effective preventive measures since parents’ health behaviours and practices usually have a direct influence on their children’s dental health. The aim of this pilot study was to evaluate parental views about the primary teeth, first dental visit, and use of behaviour modification at the time of a first clinical visit. Materials and Methods: This was a cross-sectional study conducted among parents who brought their children to the Paediatric Dental Clinic at Universiti Teknologi MARA, Malaysia. Parents completed a close-ended interviewer-administrated questionnaire (n=110). The questionnaire had eleven items addressing knowledge and attitudes towards the importance of primary teeth, effects of early extractions, and the main reason to visit the dentist for the first time. It also assessed views on appropriate treatment for decayed primary teeth, methods used to prepare children for their dental visit, and the timing of first dental visit. Data were analyzed using descriptive, frequency and Chi-Square analysis. Results: Overall, 82.3% of parents recognized the importance of primary teeth. However, only (12.5%) were aware that the first dental examination should be by age 12 months. Regarding treating primary teeth with decay, 47.9% thought that these teeth should be restored, whereas 37.5% believed extractions were appropriate. Two-third of parents (67.7%) had agreed to promote behaviour modification during the first visit if their children had no pain. Conclusion: Many parents realised the importance of primary teeth, however, lacked the sufficient knowledge on how to appropriately deal with these teeth with caries and the recommended time for first dental visit. Hence the parents must receive appropriate anticipatory guidance and also need to appreciate the benefits of early dental visit to the oral health and well-being of children.


Article
Effect of salvadora Persica Extracts on Titanium Alloy Surface Topography

Authors: Nadira A. Hatim
Pages: 26-38
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Abstract

Introduction:Fluoride containing mouth rinses, and toothpastes have been reported to decrease the corrosion resistance of titanium.Salvadora persica has been recently introduced in two forms: tooth paste (Saudi Arabia) and mouth wash. The influence of these products on Titanium Alloy Surface Topography has not been tested before. Aim of the study: To compare between the effects of Salvadora persica(Siwak® toothpaste and its alcoholic extract), with fluoride containing tooth paste (kin® toothpaste) and kin® mouth wash on the corrosion of pure titanium grade 2 (cpTi). Materials and methods: Alcoholic extract of Salvadora persicawas prepared, and tested on sixty weighted samples of cpTi divided into 4 experimental groups. Samples in the control group were immersed in distilled water. In the first experimental group, samples were treated with Kin® tooth paste. For the 2nd experimental group, samples treated with Kin® mouth wash. Samples in the 3rd experimental group were treated with Siwak® toothpaste. The final experimental group was treated with extract of Salvadora persica. These samples were subjected to surface topography (AFM) and transverse strength tests before, after three, and six months of treatments. Results: Weighting test showed no significant difference (p≤0.05) between the mean values of four treated groups of cpTi samples before, and after 3 months. However, there was a significant difference (p<0.05)between cpTi before and after 6 months treatment with Siwak® tooth paste. Surface topography showed a statistically significant difference between root mean square roughnesses of cpTi samples after 3, and 6 months of treatment. Transverse strength also showed a statistically significant difference between the mean value of cpTi between the treated and control groups after three months and six months. Conclusions:Siwak® toothpaste seems to have more effect on both weight and roughness of cpTi compared to alcohol extract of Salvadora persicaand Kin® toothpaste.


Article
Effect of Siwak on Certain Mechanical Properties of Acrylic Resin

Authors: Hanan Abdul- Rahman Khalaf
Pages: 39-49
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Abstract

Background: (PMMA) has been used in dental prosthetic devices for almost 70 years; three features have contributed for its success: excellent appearance, simple processing technique and easy repair. However, the resistance to impact and fracture of PMMA during function is low. Various methods for enhancing strength of the acrylic resin denture bases have been reported. This study was designed to evaluate the effect of adding Siwak powder with average particle size of (75 µm) in three different concentrations by weight to PMMA on certain mechanical properties. Material and Methods: Tensile strength, elongation, transverse strength, impact strength, compressive strength and the surface roughness of heat- polymerized acrylic resin specimens were evaluated for both the control group A (0%) and the experimental groups. These groups consisted of acrylic resin mixed with different proportions of Siwak powder B (3%), C (5%) and D (7%) by weight. Stainless steel samples with dimensions of (65 mm, 12.5 mm, 2.5 ± 0.03 mm) length, width, and thickness were constructed for testing tensile strength and elongation of acrylic resin. Other uniform molds were made by investing machined stainless steel standards (65 mm 10 mm, 2.5 mm) for testing denture base materials in surface roughness and these specimens were reused for transverse deflection test. For testing the impact strength and compressive strength of acrylic resin, wax patterns (60 mm,10 mm, 10 mm) and (20 mm,10 mm, 10 mm) length, width, thickness were prepared. Results: Siwak powder (5%) did not greatly affect the tensile strength and compressive strength (P = 0.05). The addition of Siwak powder at ratio of (3%) did not greatly affect impact strength of the experimental group in comparison to the control group, while the addition of (7 %) Siwak powder revealed a significant decrease in tensile strength, impact strength and compressive strength in comparison to the control group. Conclusion: Addition of low concentrations (3%, 5%) Siwak to the heat polymerizing acrylic resin did not affect significantly the tested mechanical properties.

Table of content: volume:1 issue:1