University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Assessment and Evaluation of Hydrochloric Acid Microabrasion on Enamel and its effect on Microleakage of Anterior Restorations
1
13
EN
Raya
jasm
Al-Naimi
0000-0003-4246-8544
Pedodontic,Orthodontic,Preventive Dentistry Department
College of Dentsitry
University of Mosul
Mosul
Iraq
rayaalnaimi@yahoo.com
Asaad
Mohammed
Abd-AlQader
0000-0001-5674-7355
ِAl-Noor specialized Dental Health Center, Mosul, Iraq
asaadmuhammed5@yahoo.com
Aisha Akram
A
Qasim
Aisha Qasim
Preventive dentistry Department, College of dentistry, Mosul university
dr.aisha6757@yahoo.com
10.33899/rden.2020.128449.1054
Aims: was to evaluate the effect of microabrasion on teeth, to determine the effect of using 2 types of composite resins and influence of storage time on microleakage of composite restorations after microabrasion before making a restoration. Materials and Methods: Fourty premolar teeth extracted were used, the teeth were microabrased and composite restorations were made at certain times after microabrasion according to the different groups of the study, a standard cavity was prepared on the two surfaces of the teeth that were restored with either a microhybrid or nanoceramic composite restoration, the teeth were subjected to thermocycling, and sectioned buccolingually longitudinally . Marginal leakage was evaluated using a dye penetration method. Results: Least microleakage scores were observed when the teeth were restored with out microabrasion, microleakage increased after microabrasion with no signicant difference for the occlusal site for both materials, while a significant difference was seen in favor of Tetric N ceram at the cervical sites. No difference in microleakage scores were observed regardless of the time of restoration after microabrasion, there was no significant difference in microleakage scores depending on the type of the material. <br /> Conclusion: given the limitations of this study, there was an increase in levels of micro-leakage after microabrasion of teeth, regardless of the time of application of the restoration, microleakage was higher in gingival margins in all the groups, and no significant difference in microleakage scores depending on the type of material
Fluorosis,,,,،,؛Microabrasion,,,,،,؛Composite Restorations,,,,،,؛Hydrochloric acid
https://rden.mosuljournals.com/article_167809.html
https://rden.mosuljournals.com/article_167809_c146b67cd3c49e237e32ba8fdcd82318.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Evaluation of the Effect of Casein Phosphopeptide–Amorphous Calcium Phosphate Mousse versus Natural Raw Fresh Milk on Enamel Hardness After a pH Challenge
14
24
EN
Safa
Ahmed
Al-Ani
0000-0002-6038-7548
Ministry Of Health-Nineveh Health Directorate, Ninavah. Iraq
safaahmed89@uomosul.edu.iq
Raya
jasm
Al-Naimi
0000-0003-4246-8544
Pedodontic,Orthodontic,Preventive Dentistry Department
College of Dentsitry
University of Mosul
Mosul
Iraq
rayaalnaimi@yahoo.com
10.33899/rden.2020.127142.1032
<strong>Aims:</strong> The aim of this study was to evaluate the effect of CPP−ACP, raw fresh buffalo milk and cow milk on the microhardness of artificial initial caries lesions.<strong>Materials and Methods:</strong> 100 sound maxillary first premolars were collected and randomly divided into four groups, the teeth in all groups were subjected to pH cycling procedure then treated with: Group1: n(25) deionized water, group2: n(25) CPP−ACP tooth mousse, group3: n(25) fresh raw cow milk, group4: n(25)fresh raw buffalo milk. Enamel surface was assessed by Vickers microhardness test device at a baseline and after demineralization and after remineralization. <strong>Results:</strong> In all groups, there were high statistically significant reduction of surface microhardness after demineralization. There were high statistically significant increase in surface microhardness in all groups except deionized water after remineralization, the highest remineralization effect was found in CPP−ACP tooth mousse group followed by the milk groups that showed encouraging results with fresh raw buffalo milk having superior results then fresh raw cow milk.<strong>Conclusions:</strong> CPP−ACP tooth mousse, raw fresh buffalo milk and cow milk were effective remineralizing agents which were reflected by increasing the surface microhardness of artificial initial caries lesion, but with different abilities, CPP−ACP tooth mousse was the best followed by buffalo milk then cow milk. <br />
Casein phosphopeptide-amorphous calcium phosphate,؛fresh raw milk,؛microhardness,remineralizing,demineralizing
https://rden.mosuljournals.com/article_167802.html
https://rden.mosuljournals.com/article_167802_eb046896add034fed4c073dd03e211b6.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Evaluation The Effect of Folic Acid on Some Inflammatory Mediators; IL-6 and TNF-α in Chronic Gingivitis Patients
25
34
EN
Rawia
Fehr
Al-Basrawi
Faehaa
Al-Mashhadane
0000-0001-5122-2170
Department of Dental Basic Sciences, College of Dentistry , Mosul University , Mosul, Iraq.
fayhaa6695@gmail.com
10.33899/rden.2020.126975.1031
Aims: To assay the anti inflammatory effect of systemic treatment with folic acid and relation to oral health indices of patients with chronic gingivitis. Materials and Methods: Forty patients were classified into two groups; Group 1: (n:20) chronic gingivitis patients, did not receive any medication (control group), Group 2: (n:20) chronic gingivitis patients (treatment group), received 1 mg/day oral tablet of folic acid for 42 days. Scaling and polishing have been carried out for each volunteer to reach the base line for gingival index and oral hygiene index. In the next day, these indices were measured for all participants , then measured after 21 days then after 42 days of treatment. At the same visits, five milliliters of unstimulated saliva were collected for measurement of salivary IL-6 and salivary TNF-α by human salivary ELISA kits. Results: There is no significant difference in gingival index and oral hygiene index between treatment and control group. Also there is a significant difference between means of treatment group and control group in salivary TNF-α level, while there is a non significant decrease in IL-6 at 21st and 42nd day. In treatment group there is non significant decrease in means of salivary IL-6 and salivary TNF-α during all the study period. Conclusions: Sub-acute using of systemic folic acid in chronic gingivitis patients improves their gingival health by reducing TNF-α level in their saliva.
Folic acid,Oral Health,IL-6,TNF-α,saliva
https://rden.mosuljournals.com/article_167803.html
https://rden.mosuljournals.com/article_167803_97d60f49b259b382df9ee42f85ea3470.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
The Effect of Chlorohexidine Gel Foam on the Salivary Tumor Necrosis Factor and Interleukine-6 after Extraction of lower Third Molar
35
41
EN
Dhafar
mekdad
.Abdul Fatah
pharmesist at Abn AI-Atheer Hospital M.B.CH
mahatala72@yahoo.com
Maha
Talal
Al saffar
0000-0003-1319-1785
Department of dental basic science
mahatalal98@gmail.com
10.33899/rden.2020.128172.1050
Aim: This is study aimes to demonstrate the effect of chlorohexidine gelfoam on the salivary Tumor Necrosis factor and Interleukin-6 after extraction of lower third molar to compare these effect before and after extraction ' and to know the benefit of using chlorhexidine gelfoam after extraction of lower third molar .<br /> Material and method:-twenty four patients were involved, patients classified into group 1[control group],group 2 [chlorhexidine group] saliva was taken from all patients by using salivette before extraction and seven day after extraction then measure TNF andIL-6 by using [ELISA] kits'<br /> Results:- there is significance difference in (IL-6) after one week of extraction without treatment from the baseline (before extraction) and the result respectively was (1.96±0.51),( 6.20±5.22),and the result of (TNF-α) appeared no significance difference before and after treated the result after treatment is(25.9±30.8) and before treatment is (95.2±131.6) and the result of group used chlorhexidine gelfoam show significance difference in both (IL-6, TNF-α) after and before treatment, the result of IL-6 after treatment is (16.99±13.31) and before treatment is (1.57±0.18) and the result of (TNF-α) after treatment is (56±79.3) and before treatment is (102.9±133.3)<br /> Conclusion:- the use of chlorohexidine gelfoam after extraction help to decrease the salivary TNF-α. with significant difference and decrease level of IL-6 with a significant differences compare it with control group which enhance healing process and decrease the chance of infection.
chlorohexidine gelfoam,patient with extraction,salivary (IL-6 and TNF-α)
https://rden.mosuljournals.com/article_167807.html
https://rden.mosuljournals.com/article_167807_f4b432122264bb9e5832167b0c582f4a.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Effect of Staining and Bleaching on Surface Roughness of Different Nano Hybrid Resin Composite Materials
42
50
EN
Zahraa
S
Abdulwahhab
Conservative Dentistry /Mosul University /Mosul /Iraq
zahra.sabah8776@gmail.com
Emad
Farhan
Alkhalidi
dr.emadalkhalidi@gmail.com
10.33899/rden.2020.127506.1042
<strong>Aims</strong>: The purpose of this study was to evaluate the effects of staining by coffee and In-office bleaching by 30% hydrogen peroxide on surface roughness of two different Nano-Hybrid resin composite materials. <strong>Materials and Methods</strong>: In this <em>in vitro</em> experimental study, 32disc samples were fabricated from each type of the Nano-Hybrid resin composite materials, each sample measured 5 mm in diameter and 2 mm in height. The samples for each composite group were then sub-divided randomly into four sub-groups (n=8). In <em>control sub-groups,</em> samples were stored in artificial saliva at 37°C for 1 week. Samples of <em>Staining sub-groups</em> were stored in a coffee solution for 48h at 37°C. Samples of <em>Staining Bleaching sub-groups</em> were stained in a coffee solution for 48 h at 37°C then bleached with 30% H<sub>2</sub>O<sub>2</sub>. Samples of <em>Bleaching sub-groups</em> were bleached with 30% H<sub>2</sub>O<sub>2</sub>. The surface roughness measurements were taken for all samples of each sub-group; the measurements for control sub-groups considered as baseline data. <strong>Results</strong>: The surface roughness measurements of all sub-groups for both tested materials didn’t exceed the critical value (R<sub>a</sub>< 0.2 μm) with no significant difference among all sub-groups (P >0.05). <strong>Conclusion</strong>: Surface roughness of the two tested Nano-Hybrid resin composite materials were neither influenced by coffee staining nor by in-office bleaching with 30% H<sub>2</sub>O<sub>2. </sub>
Resin composite,,,,،,؛staining,,,,،,؛bleaching,,,,،,؛hydrogen peroxide,,,,،,؛Surface Roughness
https://rden.mosuljournals.com/article_167804.html
https://rden.mosuljournals.com/article_167804_235b766dbb51130a0c5d1612a5b390f0.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Evaluation of the Anti-inflammatory Effect of Nanocinnamon Gel on Oral Health
51
61
EN
Zahraa
mohammad
Salih
Nineveh Health Directorate
zahraamuhammadsalih@uomosul.edu.iq
Jawnaa
K
Mammdoh
Amer
A
Taqa
10.33899/rden.2020.127849.1046
<strong>Aims</strong>: The study aimed to evaluate the anti-inflammatory effects of nanocinnamon gel on salivary concentrations of cytokines: interleukine-6( IL-6) and tumor necrosis factor-alpha ( TNF-α) in chronic gingivitis.<strong>Material and Methods: </strong>prepared nanocinnamon gel 2% concentration from nanocinnamon powder. The study was carried out on the randomized clinical trial of chronic gingivitis comprises of 45 patients of age between (18-50)years old .They were divided into three groups, fifteen for each group , treatment involved mechanical therapy by scaling and polishing at dental clinic and drug treatment in which the first group applied to the mechanical treatment alone, , second group received chlorhexidine gel topically and third group received nanocinnamon gel topically , the treated groups used the gel twice daily at least ten minute for three weeks. Unstimulated saliva was collected for each individuals and at least two hours after any food intake to disregard the food stimulatory effect on salivary secretions. ELISA kits (Enzyme Linked Immunosorbent Assay) used to measure IL-6 and TNF-α in saliva . Data were analyzed using kruscal-wallias H test and Friedmans̓ test analysis range test.<strong> Results: </strong>the results of present study showed that there were no significant differences in salivary IL-6 among groups after treatment however , there were significantly decreasing in salivary TNF-α of nanocinnamon group after 21 days of interval therapy in comparison to control group. <strong>Conclusion :</strong>The use of nanocinnamon gel have anti-inflammatory effect against gingivitis and the changes in the salivary concentrations of IL-6 and TNF-α can help in the diagnosis of periodontal disease
Cinnamon nanoparticles,chlorhexidine,gel,dental plaque,chronic gingivitis
https://rden.mosuljournals.com/article_167813.html
https://rden.mosuljournals.com/article_167813_5e888b62607b7e12c4ac2360c3d36a13.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Evaluate the Anti-inflammatory Effects of Nanocinnamon Gel on Salivary Cytokines: Tumor Necrosis factor-alpha (TNF-α) and Interleukine-6 (IL-6) in Chronic Gingivitis
62
74
EN
Zahraa
mohammad
Salih
Nineveh Health Directorate
zahraamuhammadsalih@uomosul.edu.iq
Jawnaa
K
Mammdoh
Amer
A
Taqa
10.33899/rden.2020.127851.1047
<strong>Aims</strong>: The study aimed to evaluate the anti-inflammatory effects of nanocinnamon gel on salivary concentrations of cytokines: interleukine-6( IL-6) and tumor necrosis factor-alpha ( TNF-α) in chronic gingivitis.<strong>Material and Methods: </strong>prepared nanocinnamon gel 2% concentration from nanocinnamon powder. The study was carried out on the randomized clinical trial of chronic gingivitis comprises of 45 patients of age between (18-50)years old .They were divided into three groups, fifteen for each group , treatment involved mechanical therapy by scaling and polishing at dental clinic and drug treatment in which the first group applied to the mechanical treatment alone, , second group received chlorhexidine gel topically and third group received nanocinnamon gel topically , the treated groups used the gel twice daily at least ten minute for three weeks. Unstimulated saliva was collected for each individuals and at least two hours after any food intake to disregard the food stimulatory effect on salivary secretions. ELISA kits (Enzyme Linked Immunosorbent Assay) used to measure IL-6 and TNF-α in saliva . Data were analyzed using kruscal-wallias H test and Friedmans̓ test analysis range test.<strong> Results: </strong>the results of present study showed that there were no significant differences in salivary IL-6 among groups after treatment however , there were significantly decreasing in salivary TNF-α of nanocinnamon group after 21 days of interval therapy in comparison to control group. <strong>Conclusion :</strong>The use of nanocinnamon gel have anti-inflammatory effect against gingivitis and the changes in the salivary concentrations of IL-6 and TNF-α can help in the diagnosis of periodontal disease
Cinnamon nanoparticles,chlorhexidine,gel,salivary biomarker,chronic gingivitis
https://rden.mosuljournals.com/article_167812.html
https://rden.mosuljournals.com/article_167812_7b5a4044a844fe4cfc4434e41239b501.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Histological Assessment of Early Bone–Response to ZrO2 Implant Accompanied by CaSO4.0.5H2O as a Bone Substitute
75
85
EN
Ghufran
M
Al-Banaa
Ministry Of Health-Nineveh Health Directorate
ghufranmuslim@gmail.com
Mohammad
S.
Sulaiman
Oral and Maxillofacial Surgery/College of Dentistry/University of Mosul/Mosul Iraq
mohsalsul70@gmail.com
Abdulsattar
Salim
Mahmood
Department of Oral and Maxillofacial surgery/ College of Dentistry/ university of Mosul
abdulsattarsalim@uomosul.edu.iq
10.33899/rden.2020.128474.1055
<strong>Aims</strong>: The study aims to assess the early bone response to a digitally designed and manufactured zirconia dioxide (ZrO<sub>2</sub>) implant accompanied by Calcium sulfate hemihydrate (CSH) as a bone substitute material. <strong>Materials and methods</strong>: Twenty rabbits were subjected to a surgical experiment to implant forty machined ZrO<sub>2 </sub>screws on their left femur bones. Each of the first twenty ZrO<sub>2 </sub>screws was fixated in the prepared implant cavity about 1cm away from the mesial femoral head of each rabbit, those were the group of (ZrO<sub>2</sub>). The other twenty implant cavities were prepared about 1cm away from each distal head and filled with a standard amount of CSH, then the remaining twenty ZrO<sub>2</sub> screws were fixed, those were the group of (ZrO<sub>2</sub>+CSH). The bone response was evaluated histologically in intervals of 3, 7, 14, and 21 days where every 5 animals represent one interval. The histometric evaluation of the decalcified sections of the bone around each implant was done using a light microscope for the No. of osteoblast and osteocytes together with the bone trabecular thickness. <strong>Results</strong>: Significant differences were noted between both groups at all time–intervals regarding the number of osteocytes, and at each of 3, 7, and 14 days regarding the number of osteoblast, and at 3 and 7 days regarding the bone trabecular thickness. <strong>Conclusions</strong>: Within the limitation of this study we can conclude that the use of CSH as an artificial bone substitute around the ZrO<sub>2</sub> implant can increase bone formation around the implant.
Keywords: Zirconium dioxide implants,ZrO2,Calcium sulfate hemihydrate,CAD/CAM,bone response
https://rden.mosuljournals.com/article_167811.html
https://rden.mosuljournals.com/article_167811_d64b0fd6012a7db81648bfc5513eb0a2.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Densitometric Evaluation of Calcium Sulfate Hemihydrate as a Bone Graft Substitute around CAD / CAM Machined Zirconium Dioxide Implants
86
95
EN
Ghufran
M
Al-Banaa
Ministry Of Health-Nineveh Health Directorate
ghufranmuslim@gmail.com
Mohammad
S.
Sulaiman
Oral and Maxillofacial Surgery/College of Dentistry/University of Mosul/Mosul Iraq
mohsalsul70@gmail.com
Abdulsattar
Salim
Mahmood
Department of Oral and Maxillofacial surgery/ College of Dentistry/ university of Mosul
abdulsattarsalim@uomosul.edu.iq
10.33899/rden.2020.128471.1053
<strong>Aims</strong>: This experimental study was conducted to evaluate the effect of β–calcium sulfate hemihydrate (CSH) as a bone graft substitute on the bone response around CAD/CAM machined zirconium dioxide (ZrO<sub>2</sub>) implants. <strong>Materials and methods</strong>: Forty ZrO<sub>2</sub> implants were digitally designed and manufactured using computer–aided design/ computer aided–manufacturing CAD/CAM machine. Twenty New–Zealand rabbits were included in the experiment and a bed was made for implantation in each head of the left femur. Each animal received a ZrO<sub>2</sub> implant in the mesial femoral head and this group of implants was considered as a control group. Then the calcium sulfate hemihydrate was placed in the implant bed at the distal femoral head followed by fixation of an implant, and this group was considered as an experimental group. The twenty rabbits were randomly allocated into four groups, to represent the study periods i.e. 3 days, 7days, 14 days, and 21 days. Bone response was assessed around each of the forty implants by measuring the bone mineral density using densitometric analysis of the digital periapical radiological image which was taken after the euthanization of the animals according to study intervals. <strong>Results</strong>: The results showed a statistically significant difference between the control group (ZrO<sub>2</sub> implants) and the experimental group (ZrO<sub>2</sub> implants with CSH) in bone mineral density. <strong>Conclusions</strong>: the use of CSH as an artificial bone graft around ZrO<sub>2</sub> implant is beneficial for increasing bone formation around the implant as it increases bone density.
Zirconium dioxide implant,Calcium sulfate hemihydrate,CAD/CAM,Densitometric analysis
https://rden.mosuljournals.com/article_167810.html
https://rden.mosuljournals.com/article_167810_43dfd302a90f2923415b64e4b5bf5b36.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Histomorphological Evaluation of Teeth After Three Months Follow up of Pulp-Cell Homing Procedure in Teeth with Incomplete Apex Formation in Dogs
96
109
EN
Amar
S
Salim
Ghada
Younis
abdulrahman
0000-0003-2155-7644
Dental basic sciences department,college of dentistry, mosul university
ghadakahwaji@gmail.com
10.33899/rden.2020.128219.1051
<strong>Aims</strong>: To evaluate the tissues formed by the pulp stem cell homing technique through the histopathological sections, after a three months follow-up period. <strong>Materials and Methods</strong>: The study was performed on twelve right second premolars of twelve local breed female dogs, that were randomly selected form different areas of Mosul City. The study was divided into four stages, stage I (Induce infection), stage II (Disinfection), stage III (Treatment), and stage IV (3 months follow-up). In the stage IV the tooth and the surrounding bone segment was sectioned and routinely processed to produce H&Estained tissue sections that were evaluated under the light microscope. The histological examiners were evaluated presence or absence of 1st normal pulp-like tissue, 2nd newly hard tissue (bone,cementum, dentin),3rd empty/necrosis,4th intra-canal inflammation, 5th periapical inflammation, 6th apical narrowing and wall thickening. <strong>Results</strong>: The results have shown that 85.71% of specimens had normal pulp-like tissue ,100% had newly hard tissue structure, 14.28% had an empty canal\ necrosis, 57.14%had intra-canal inflammation, 71.42% had periapical inflammation, and 85.71% had apical narrowing. <strong>Conclusion</strong>: The pulp stem cell homing procedure showed an effective way to treat an open apex tooth and this procedure was increased the root length and thickness and also filled the pulp space with pulp-like tissue. The procedure did not regenerate the tooth structure, but formed a tissue like dental structure (dentin, bone and cementum) and these tissues did not for regeneration, but for tissue repair. <br />
Cell Homing,,,,،,؛Histological Tooth Slides,,,,،,؛Incomplete Teeth Apex,,,,،,؛Dogs
https://rden.mosuljournals.com/article_167815.html
https://rden.mosuljournals.com/article_167815_238d13d65de620410497967e864899f0.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
The Plasma Levels of bFGF and Microbiological Evaluation of Cell Homing Procedure of Incomplete Teeth Apex Maturation in Dogs
110
123
EN
Ammar
S
Salim
Ghada
Younis
abdulrahman
0000-0003-2155-7644
Dental basic sciences department,college of dentistry, mosul university
ghadakahwaji@gmail.com
10.33899/rden.2020.128138.1049
<strong>Aims</strong>: The study aims to evaluate the blood level changes of basic Fibroblast Growth Factor (bFGF) during pulp cell homing procedure of teeth with incomplete apices in dogs, and to evaluate the root canal disinfection recommendation of American Association of Endodontist protocol used in pulp revascularization procedure<strong>. Materials and Methods</strong>: Twelve local breed dogs randomly selected form different areas of Mosul City. The study was included four stages, the bFGF levels in the blood samples were measured by canine bFGF ELISA kit, stage I control (Induce infection),stage II (Disinfection),stage III (Treatment),and stage IV (3 month follow up).In stage II there are two microbial samples have taken from the root canals before and after AAE disinfection protocol ,and also after final irrigation in stage III by the aid of paper point These microbial samples were diluted and spread on blood agar and after 24hr the colony forming unit per milliliter was calculated CFU/ml to evaluate the effectiveness of AAE disinfection protocol. <strong>Results</strong>: The aid of ANOVA for Repeated Measure Statistical Test, the levels of bFGF in all stages were statistically analyzed. The result show significance at 5% level of significant P-value=0.04. The microbial counting result showed a highly significant difference at 1% P-value=0.000. These three samples have been statistically analyzed by one-way analysis of variance (ANOVA). <strong>Conclusion</strong>: There is a difference in the levels of bFGF in the blood between the stages during pulp cell homing, also AAE protocol for disinfection is an effective method to disinfect the open apex root canal system. <br /> <br /><br /><br />
Key Words: Cell Homing,,,,،,؛Growth factor,,,,،,؛bFGF,,,,،,؛Incomplete Teeth Apex,,,,،,؛Dogs
https://rden.mosuljournals.com/article_167814.html
https://rden.mosuljournals.com/article_167814_ae0162833749a6557d179be950df6129.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Comparison of Tensile Bond Strength Between Fissure Sealants Placed After Rubber Cup Polishing and Air Polishing of Enamel Surface (An in vitro study)
124
134
EN
ibrahim
Basheer
Badran
orthodontic, pedodontic and preventive dentistry department, college of dentistry, university of mosul
ib.dentist88@gmail.com
Saher
Sami
10.33899/rden.2020.128036.1048
<strong>Aims</strong>: The purpose of this study is to compare the tensile bond strength between fissure sealants placed after rubber cup pumice polishing and air polishing of the enamel surface. <strong>Materials and Methods</strong><strong>: </strong>An experimental study was carried out using 40 non-carious upper first premolars extracted for an orthodontic reason, the crowns were separated from the roots, the teeth were randomly divided into 2 main groups consisting of 20 crowns depending on the sealant material used (Prevent or Angie), the teeth were subdivided into two subgroups of 10 teeth depending upon whether rubber cup with pumice slurry polishing or air polishing. Group Ia: Prevent Rubber cup (PRC). Group Ib : Prevent Air polisher (PAP), Group IIa: Angie Rubber cup (ARC). Group IIb: Angie Air polisher (AAP). Each tooth in this study was etched with a 37% semi-gel phosphoric acid for 15 seconds on the buccal surface, rinsed thoroughly for 20 seconds, and dried with the air stream to get an uniformly white, chalky-similar appearance. A translucent plastic tube was fixed on an etched enamel surface and filled incrementally with a fissure sealant then ready small post screws with twisted orthodontic wire gauge 0.012 inches which placed inside the tube until the serrations of screws were embedded in the last increment and light-cured. Samples were kept in the distilled water at room temperature for 24 hours. Tensile bond strength was measured by using the universal testing machine (GESTER,<em> GT-C04-2,</em> CHINA) and the values were statistically analyzed using Independent sample t-test. <strong>Results:</strong> A non-significant difference in tensile bond strength was detected between two methods used in the groups (<em>p<strong>></strong></em>0.05). <strong>Conclusions: </strong>Th<strong>e </strong>air polishing method is easy and useful but, there were no significant differences on the tensile bond strength of material in comparison with a rubber cup and pumice.
Fissure sealant,Air polisher,Rubber cup,Tensile bond strength
https://rden.mosuljournals.com/article_167806.html
https://rden.mosuljournals.com/article_167806_c49794ca5490a171dd0a43c64d737c58.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Tensile Bond Strength of Self-adhesive Flowable Composite as Pit and Fissure Sealant Bonded to the Enamel Surface in Comparison with Fissure Sealants (in vitro study)
135
145
EN
ibrahim
Basheer
Badran
orthodontic, pedodontic and preventive dentistry department, college of dentistry, university of mosul
ib.dentist88@gmail.com
Saher
Sami
10.33899/rden.2020.127668.1045
<strong>Aims</strong>: The objectives of this study to compare the tensile bond strength (TBS) of self-adhesive Flowable composite with conventional fissure sealants. <strong>Materials and Methods : </strong>an experimental study was carried out using forty non-carious upper first premolars that were collected of orthodontic extracted teeth. The crowns separated from the roots and the buccal surface were cleaned and polished to obtain a clean enamel surface. The samples were randomly divided into 4 main groups according to the types of resin material (n:10 for each group). Group I: testing TBS for Vertise Flow, Group II: testing TBS for Prevent, Group III: testing TBS for Angie, Group IV: testing TBS for Conseal. A translucent plastic tube was fixed after acid etching application on enamel surface for 15 seconds followed by water rinsed and air dryness, the tube filled incrementally with flowable resin and fissure sealant then ready small post screws with twisted orthodontic wire gauge 0.012 inch which placed inside the tube until the serrations of the screws were embedded in the last increment and light-cured. The Samples were stored in the distilled water at room temperature for 24 hours. Tensile bond strength was measured using a universal testing machine (<em>Electronic Elastic Strength Tester GT-C04-2</em><em>,</em> GESTER, CHINA).The values were statistically analyzed using one way ANOVA and Duncan tests. <strong>Results </strong>: A significant difference in the tensile bond strength were observed among all groups (<em>p</em><0.05). Vertise Flow showed higher tensile bond strength value than fissure sealants followed by Prevent , Angie and Conseal. <strong>Conclusions: </strong>The tensile bond strength of Vertise Flow better than the fissure sealant due to the presence bond (Optibond) with etchant properties.
Self-adhesive flowable composite,Fissure sealant,Tensile bond
https://rden.mosuljournals.com/article_167805.html
https://rden.mosuljournals.com/article_167805_6d9823aa26ef075b8faf7aa67a20407c.pdf
University of Mosul
Al-Rafidain Dental Journal
1812-1217
1998-0345
21
1
2021
03
01
Surface Roughness Assessment of the Sandblasted and Acid- Etched Zirconia Ceramic
146
157
EN
Mohammed
Riyadh
ALobaide
Department of conservative dentistry, college of dentistry, Mosul university, Mosul, Iraq
mohammedriadh1991@gmail.com
Maan
M
Nayif
Department of Conservative Dentistry, College of Dentistry, Mosul University, Mosul, Iraq.
mmnayif@yahoo.com
10.33899/rden.2021.128358.1052
<strong>Aims</strong>: To evaluate the effect of sandblasting with Al<sub>2</sub>O<sub>3 </sub>particle and 30% citric acid etching on the roughness of zirconia ceramic. <strong>Materials and Methods</strong>: Thirty disks were prepared from partial sintered zirconia (IPS e.max ZirCAD MT blank disk, Ivoclar Vivadent; Schaan, Liechtenstein). Specimens were assigned randomly into three groups based on surface treatment techniques (n=10). Group I zirconia surface was left without surface treatment (control). Group II specimens were subjected to sandblasting with 110 µm Aluminum oxide particles (Al<sub>2</sub>O<sub>3</sub>) while the group III surface was treated with citric acid solution 30% for 10 minutes. The surface roughness of the zirconia was investigated using a profilometer. Data were analyzed with one-way ANOVA and Duncan’s tests at 5% level of significance. <strong>Results</strong>: Sandblasting with AL<sub>2</sub>O<sub>3</sub> 110µm significantly increased the surface roughness value of the zirconia surface. Chemical treatment with 30% citric acid did not exhibit any significant changes in comparison to the control group. <strong>Conclusions</strong>: Sandblasting with AL<sub>2</sub>O<sub>3</sub> increased zirconia surface roughness but acid etching has no effect.
Acid etching,,,,،,؛Roughness,,,,،,؛Sandblasting,,,,،,؛Zirconia ceramic
https://rden.mosuljournals.com/article_167808.html
https://rden.mosuljournals.com/article_167808_91ac15f6b74f2a25b609f761f855e197.pdf