2024-03-28T21:11:50Z
https://adjc.journals.ekb.eg/?_action=export&rf=summon&issue=20705
Advanced Dental Journal
2636-302X
2636-302X
2021
3
1
Influence Of Implant Thread’s Cross-Sectional Design On The Micromotion Of The Implants In Different Bone Qualities: Finite Element Analysis
Dalia
Shaker
Amr
Elkhadem
Mohamed
Abdel Rasoul
Mohamed
Askar
Aim: To evaluate the effect of the implant’s thread cross sectional design on the micromotion of the implants in different bone qualities. Materials and methods: In this finite element analysis study, four implant models exhibiting four different thread designs were created using Solidworks software. Each model was assembled in four different bone quality models resulting in 16 groups. Each group was examined for micromotion under 100N force using ANSYS software. Results: D1 bone showed the lowest micromotion while D4 bone showed the highest, regardless the thread design. In D1 and D2 bone, v-shaped thread showed the lowest micromotion, which was lower than the square thread and the buttress was lower than the reverse buttress. While in D3 and D4 bone, the lowest micromotion was observed with the square thread, which was lower than the v-shaped and the reverse buttress thread was lower than the buttress thread. Conclusion: Micromotion decreases as the bone quality increases irrelevant of the implant thread design. In D1 and D2 bone, the best thread to be used is the v-shaped thread, while in D3 and D4 bone, the best is the square shaped thread.
Thread design
Micromotion
Bone qualities
Finite Element Analysis
Bone-implant contact
2021
01
01
1
11
https://adjc.journals.ekb.eg/article_123857_4f3ea4ff71a60e1901d69ff64abde5ce.pdf
Advanced Dental Journal
2636-302X
2636-302X
2021
3
1
Clinical and Radiographic Evaluation of Vital Pulpotomy in Primary Molar using Antioxidant Mix as a Novel Pulpotomy Medication versus Formcresol: A Randomized Clinical Trial.
Yasmine
Yousry
Amr
Abd Al Latif
Randa
Abd Al Gawad
Background: Formocresol (FC) reported high success rates when used in pulpotomy of primary molars , however many concerns have been raised regarding its mutagenicity, carcinogenicity, its local toxicity, Objectives: to assess the success rates of Antioxidant mix and FC, used as pulpotopmy agents in vital primary molars, both clinically and radiographically. Materials and Methods: Randomized clinical trial. Fifty-two (52) primary mandibular molars in thirty-five (35) children ranging in age from four to eight years were included in the study. Molars were divided into two equal groups (n= 26), Antioxidant mix (group 1) & FC (group 2) as a pulp medicament. All pulpotomized teeth were finally restored with stainless steel crowns. Subjects were monitored clinically & radiographically at three, six and nine months. Results: The clinical and radiographic success rates of Antioxidant mix & FC by the end of the nine months were [(84.6 & 46.2%) & (88.4 & 84.6%)] respectively. Conclusion: Antioxidant mix may not provide a reliable biological method for vital pulp therapy in primary molars.
Antioxidant mix
Formocresol
primary molars
Pulpotomy
2021
01
01
12
23
https://adjc.journals.ekb.eg/article_139891_1ea46e24ee3fdd5f37e29486d55ee402.pdf
Advanced Dental Journal
2636-302X
2636-302X
2021
3
1
Effect of Green Tea, Black Tea and Moringa Oleifera on Remineralization of Artificially Demineralized Enamel and Dentin: An In-vitro Microhardness Analysis.
Hadeel
Farouk
Rania
Mosallam
Nawal
Aidaros
Objectives: The present in vitro study aimed to investigate and compare the effect of green tea, black tea and Moringa Oleifera on artificially demineralized enamel and dentin. Methods: Forty intact maxillary molar teeth were sectioned mesiodistally. The demineralized samples of enamel and dentin were randomly divided into four subgroups according to the treatment utilized. Group 1: Green tea extract; Group 2: Black tea extract; Group 3: Moringa Oleifera extract and Group 4: Artificial saliva (control). The samples were subsequently evaluated using microhardness tester. Data were tabulated and statistically analyzed using ANOVA and t-test. Results: A statistically significant difference was found between baselines followed by after treatment, while the lowest mean value was found in after demineralization. A statistically non-significant difference was found between the four tested groups in enamel samples. In dentin, the highest mean value was found in Moringa Oleifera while the lowest mean value was found in black tea. The highest percentage of change was found in Dentin showed higher percentage of change after treatment compared to enamel. Conclusion: Black tea, green tea and Moringa Oleifera enhanced the remineralization process of demineralized enamel and dentin, and thus, might be considered as an effective natural remineralizing agents.
Black tea
green tea
Microhardness
Moringa oleifera
remineralization
2021
01
01
24
34
https://adjc.journals.ekb.eg/article_139885_922e6ed6c495d626a0ceaa54a99b9fa8.pdf
Advanced Dental Journal
2636-302X
2636-302X
2021
3
1
Assessment of Practical and Emotional Consequences of Novel Coronavirus Emergence on Clinical Dental Practice in Egypt: A Cross Sectional Study
Rasha
Hanafy
Background: Novel COronaVIrus Disease 19 (COVID-19) outbreak has a great impact on every aspect of life. It caused an emergency status in the health system worldwide. In dentistry, it represents one of the challenges that most of the dentists and patients are facing. This survey was conducted to highlight the practical changes in dental practice created by COVID-19 emergence, and its impact on dentists’ feelings and concerns especially after Egyptian national administrative order of 15 March 2020 (Egypt Declared Partial Curfew). Methods: An anonymous online survey, formed of 23 questions, was sent to 293 dentists practicing in Egypt. Results: Almost all of the respondents (96.6%) closed or reduced their activity to urgent procedures only, 81.9% of patients canceled their appointments after 15 March 2020, and 75.1% of the dentists reported difficulties in finding Personal Protective Equipment. Also, 97.6% of the dentists reported worry of acquiring COVID-19 while working. When thinking about it, 44% of the participants reported anxiety, 28.7% concern, 16.4% fear, only 10.6% felt sad. They overall were worried about their professional future. Most of the dentists believed that some improvements could be effective. Conclusions: COVID-19 pandemic has high negative impact on dentists and dental practice in Egypt.
COVID-19
SARS-CoV-2
dental practice
Survey
Consequences
2021
01
01
35
43
https://adjc.journals.ekb.eg/article_139860_e4d44190745ed506ab772a6f6abf5b37.pdf
Advanced Dental Journal
2636-302X
2636-302X
2021
3
1
Influence of Ball Attachment Diameter and Inter-implant Distance on Retention of Mandibular Overdenture: An in Vitro Study
Neveen
Mohamed
Eman
Essam
Omar
Ragab
Objectives: To assess the effect of three different diameters of ball/ socket attachments and inter-implant distances (IIDs) on the retention of 2 implants as compared with single implant retained mandibular overdentures. Materials and Methods: Four transparent acrylic resin casts simulating a completely edentulous mandible were fabricated. The forces (N) needed to dislodge single and 2 implant retained mandibular overdentures were estimated by a universal testing machine. Four main groups were computed,12 subgroups; a single implant was placed in mid-line area with 3.5mm, 4mm and 4.5mmdiameter ball and socket attachments respectively and 2 implants with IIDs 25mm in the canine, 32mm in 1st premolar and 40mm in 2nd premolar regions connected to 3.5mm, 4mm and 4.5mm diameter ball/socket attachments respectively. Results: Statistically significant differences were found between single implant with ball attachment diameters(3.5mm,4mmand 4.5mm), single implant at (4.5mm) and 2 implants at (3.5 mm) diameters, 2 implants with ball attachment diameters(3.5mm, 4mm and 4.5 mm) at (25mm and 32mm and 40mm) IIDs and (25mm and 32mm and 40mm) IIDs at (3.5mm and 4 mm)ball attachment diameters, P ≤ 0.05, but it was non-significant at 4.5mm ball attachment diameters, P > 0.05.The interactions between IIDs and the diameter of ball/ socket attachments were statistically non significant, P> 0.05. Conclusion: Increasing both ball and socket attachment diameters and the inter-implant distances had positively influenced the retention of mandibular overdenture.
dental implant
mandibular overdenture
denture Retention
ball attachments
2021
01
01
44
53
https://adjc.journals.ekb.eg/article_139875_28e54f1f70f7fa0b20cf06bc66d6abd7.pdf