39^th Asia-Pacific Dental and Oral Care Congress October 26-28, 2017 Hyatt Regency Osaka, Japan

Biography:

Abstract:

Aim: The aim of this study is to evaluate the stability of innovative interconnected orthodontic mini screw system i.e., Seifi Twin Screws (STS) compared with conventional temporary anchorage device (TAD) configuration by using finite element method.

Materials & Methods: A configuration of titanium mini screw with 8 mm long and 1.6 mm diameter and a cantilever spring inserted on mini screws were designed by a computer aided design software Solidworks 2015. Three-dimensional models were created for each mini screw configurations. The size of each element was 0.4 mm and an isotropic type was used in model construction. Loads in different directions have been applied on models and reactions of system, stress distribution and strains were calculated by finite element based software (ABAQUS 6.14.4).

Results: The finite element analysis was a suitable approximation of clinical simulation in relation to stress distribution and force application. Analyzing the von Mises stress values showed significant lower maximum stress, less undesirable movements and less rotations in the innovated system.

Conclusion: The finite element base analysis demonstrated that the innovated model of STS can be adapted as a clinical orthodontic tool. The usage of innovated system is advantageous in terms of biomechanical stability and lower load deflection rate.

Biography:

Abstract:

Measurement of normal maximum mouth opening (MMO) in children is an important diagnostic criterion in the evaluation of the stomatognathic system. The aim of this study was to determine the MMO in children of age 3 to 12 years and to examine the possible influence of age, gender, height and body weight on MMO. Assessment of MMO was accomplished with a modified Vernier Caliper, by measuring the distance between the incisal edges of the upper and lower incisors during maximal mouth opening up to the painless limit. The study consisted of 1383 children, who were randomly divided into two groups based on their dentition: Group-1: Children with primary dentition, Group-2: Children with mixed dentition. The group-1 was sub-grouped based upon age. Sub-group-1: Children with 3 years of age, Sub-group-2: Children with 4 years of age, Sub-group-3: Children with 5 years of age. The group-2 was sub-grouped in sub-group-4: Children of age 6-8years; Sub-group-5: Children of age 8-10 years; Sub-group-6: Children of age 10-12 years. For each subject three readings were recorded in millimeters and the mean value was considered. The age, gender, height and body weight of each child were also recorded at the same time. P value of <0.05 was considered to be significant. The results of the present study revealed that MMO in Indian children were 41.61 mm, 44.9 mm, 46.81 mm, 46.04 mm, 48.53 mm and 52.38 mm for boys and 40.09 mm, 44.22 mm, 46.2 mm, 45.95 mm, 47.27 mm and 52.05 mm for girls at age of 3, 4, 5, 6-8, 8-10 and 10-12 years, respectively. Furthermore, significant associations were observed in between MMO, age, gender, height and body weight.

Biography:

Anurag Tripathi is currently working as an Assistant Professor in Department of Oral Medicine and Radiology in King George Medical University, India

Abstract:

Biography:

Abstract:

Aim: The aim of this study was to find out the therapeutic correlation between cervical dysfunction and myofascial pain dysfunction syndrome (MPDS).

Materials and methods: The study included 46 patients out of which 23 had MPDS with cervical pain (group I), and 23 patients had only MPDS (group II). Detailed history and examination of the patients were carried out, and the factors taken into consideration were pain and tenderness of muscles of mastication and neck muscles, maximum comfortable mouth opening, and cervical range of motion. All the patients were randomly divided and advised physical exercises, light amplification by stimulated emission of radiation (LASER) therapy, and the combination of both exercise and LASER. Patients were assessed for the relief of signs and symptoms of myofascial pain and cervical pain post treatment, every month for 2 months.

Results: Both the groups showed a similar response to all the different treatment modalities. In group I, the patients also had relief in their cervical pain although the treatment was directed for MPDS. Patients from both the groups who were advised LASER and combination of both exercise and LASER showed better response in terms of reduction in visual analog scale, number of tender muscles, and increased maximum comfortable mouth opening post treatment and during the follow-up, as compared with the patients who were advised only exercise.

Conclusion: Patients having cervical pain showed significant improvement comparable with patients having no cervical pain. Hence, the conclusion drawn was that there is a positive interrelationship between MPDS and cervical (neck) pain; MPDS may act as a catalyst for precipitating cervical pain.

Biography:

Abstract:

Biography:

Negin Sadat Matini has received her DDS degree from Shahid Beheshti Dental School in 2015. She has published 3 PubMed articles and a patent during her undergraduate program. She is the Founder and CEO of Noavadental Research Group, Iran. She has attended many international congresses and she is also a private practitioner and a researcher mostly in orthodontics.

Abstract:

Aim: The aim of this study is to evaluate and determine the morphology changes of the mandible by the injection of botulinum into masseter muscle of growing species during mandibular advancement therapy.

Materials & Methods: Sixty (60) growing male Wistar rats were randomly divided into four experimental groups as following: Functional control; Botox control; Functional and botox experiment. Included samples in experimental groups were fitted by a functional appliance in order to protrude the mandible. Meanwhile, botulinum neurotoxin was injected in masseter muscle of both sides of rats in botox control and botox experimental group. The animals were sacrificed after 4 weeks. Bone imaging was done by cone beam computed tomography (CBCT) in a standardized manner. Selected linear cranial measurements were obtained by device software (NewTom VGi, NewTom Inc., Verona, Italy) and the statistics analysis was processed with SPSS and one-way ANOVA test.

Results: Changes in animal weight during the treatment period were not statistically significant. There were significant differences in all measurements on the samples which botox were included in combination with functional appliance compared with groups that did not received botox during the experiment. The differences included increased length of mandible, length of condyle and condyle to mandibular plane in all samples provided by botox and functional appliance.

Conclusion: The result of the present study revealed a significant treatment outcome in applying botox in addition to functional appliance therapy. Based on the latter, reduced masticatory function affected the mandibular protrusion treatment and the outcome regarding functional appliance therapy in growing patients.

Biography:

Lily Lwin has completed her Master of Public Health degree at Mahidol University, Thailand in 2016. She is also an alumnus of University of Dental Medicine Yangon, Myanmar in 2012. She has been volunteering in charity clinics located in Mingaladon Township since 2011. She has served as a part time Dental Surgeon in Myat Mon Dental Clinic for 2 years. Currently she is working as a Public Health Officer in the international non-government organization.

Abstract:

Objective: This hospital based case-control study carried out in Yangon and Mandalay cities of Myanmar aimed to measure the effect of betel quid chewing habit on occurrence of oral sub-mucous fibrosis (OSMF) patients attending dental services. This study would like to present about the usage and effect of betel quid chewing habit related with OSMF in Myanmar people where compositions of betel quid and the way of consumption differ from other regions in south Asia.

Method: This matched case-control study was carried out in out-patient department (OPD) of 3 teaching hospitals located in Yangon and Mandalay. One case of oral sub-mucous fibrosis patient matched with 4 control patients by sex, age (equal or ±2 year difference) and hospital site. A total recruitment included 48 cases and 183 controls who attended the OPD in these three hospitals within the defined period from 2014 to 2016. Secondary data collection and additional interviewing process was undertaken in April 2016. Multilevel logistic regression was applied to estimate the effect of betel quid chewing on occurrence of OSMF after adjusted for relevant confounders.

Results: The betel quid chewing habit was predominant by male patients between the age ranges of 21 and 57. Buddhists were the most common among cases. Majority of the OSMF cases were occupied by married and indicated low socio-economic status. After adjusted for confounders, betel quid chewing was estimated to increase the risk of OSMF by 81 times when compared to those without this oral habit. Freshly prepared betel quid with the usage of ‘92’ (local trade name) compound and tobacco were practiced most commonly among the OSMF patients. The clinical diagnosis of most of the OSMF cases was found in the second clinical stage with the lesions occurring in both sides of the buccal mucosa.

Conclusion: Betel quid chewing habit is the major causative oral habit for the occurrence of oral sub-mucous fibrosis. According to the results obtained, public encouragement to quit the betel quid chewing habit in the community by the campaigns at the national policy level should be suggested.

Biography:

Hammia Zanzabiela is currently pursuing Dental studies from the Muhammadiyah University of Yogyakarta. She is interested in Qur’anic study and she believes that it could be effectively applied in dental practice. She is also active in some dental activities such as dental voluntary project, being a Committee of Dental National Month and organizing dental seminars. 

Abstract:

Anxiety is a normal development pattern in a child’s growth. At the age of eight, children tend to be more anxious about some specific things or certain events, especially in dental clinics. There are so many things affecting minor anxiety during treatment; sound is one such factor. Murottal Al-Qur’an is a kind of audio distraction method. Its sound has an ability to boost delta waves in order to make people feel relaxed. The aim of this study is to determine the differences in anxiety levels of minor dental patients after applying Murottal Al-Qur’an intervention. This study used an interventional analytic method of giving a pre-test and a post-test to one group. The measuring tool was the Venham picture test. There were 16 minor dental patient respondents ranging from 8 to 12 years old. Firstly, the operator gave them the tooth preparation treatment for five minutes and then patients were given a pre-test to determine their initial anxiety levels. After that, they had their tooth preparation continued while listening to Murottal Al-Qur’an. Finally, the patients took the post-test. Results showed that all respondents experienced varied decreasing levels of anxiety. The Wilcoxon signed-rank test proved that there was a significant difference between pre and post-test anxiety levels from Murottal Al-Qur’an intervention in dental restoration treatment, pointed by 0.000 (sig <0.05). It can be concluded that there was a difference in anxiety levels after using Murottal Al-Qur’an with minor dental patients and Murottal itself may be chosen as a method of children’s behavioral management in a dental clinic.

Biography:

Andikha Dara Asmara Putri is currently pursuing her Bachelor of Dentistry from Muhammadiyah University of Yogyakarta. She is also active in some dental activities such as dental voluntary project, being a Committee of International Dental Summer School and organizing dental seminars.

Abstract:

Tamarind seeds and fruit (Tamarindus indica L.) have some useful active substances that inhibit bacterial activity and can decrease the level of calculus hardness. Active compounds contained in seeds and fruit of tamarind, such as albuminoid and tannin. Tannin is a compound that can inhibit microbial growth by inhibiting the action of enzymes. Albuminoid is a common name of a group of proteins in the form of colloid solutions that play a role in binding calcium and phosphate ions, which are responsible for the formation of calcium phosphate salts (calculus-forming minerals). In the event of a bond between the albuminoid and the minerals, the process of calculus formation is impaired. This study aims to determine the effectiveness of tamarind seeds and fruit extract toothpaste as antibacterial agent and calculus softener. This research was a pure laboratory experimental with tamarind seeds and fruit toothpaste as a research subject. The toothpaste combination made according to composition of Volk and ash with 3 comparisons of concentration combination, seed extract 50%-50% fruit extract, 75% seed extract-25% fruit extract and 25% seed extract-fruit extract 75%. Microbial test materials were using Staphylococcus aureus ATCC 25923 and hardness test materials were using post-scaling calculus. Minimal inhibitory level (KHM) and minimal kill content (KBM) of tamarind seeds and fruit extract toothpaste showed the antibacterial activity against the germ with Mueller Hinton method. The hardness test was using micro Vickers hardness tester.

Biography:

Dyah Ayu Anindya Susanti has completed her Bachelor of Dentistry from School of Dentistry, Faculty of Medicine and Health Science, Muhammadiyah University of Yogyakarta. She has also joined the Student Exchange Program in School of Dentistry Tokushima University Japan in 2014. 

Abstract:

Acrylic resin is a material that is often used as a denture base. Acrylic resin is containing ethylene vinyl derived groups in the formula. Clinicians tend to select the acrylic resin as a denture base material because it has a non-toxic nature, not irritating, not soluble in oral fluids, good aesthetics, easily manipulated, easy reparation and small dimensions change. Nevertheless, acrylic resin has the disadvantage that the content of methacrylate monomers inside the molecule produces unpleasant smell during the process of manipulation. This study aims to determine the effect of the concentration of mint leaf extract (Mentha piperita) added to the acrylic resin before polymerization to the hardness of acrylic plate. A total of 15 samples in this research in the form of plates which size 64X10X3, 3 mm that were divided into three different groups: Group-1: Without the addition of mint leaf extract, Group-2: With the addition of mint leaf extract 0.25 ml and Group-3: With the addition of mint leaf extracts 0.5 ml. Then the whole sample was left for a process of perfect polymerization and then was preceded with testing of the hardness using the micro Vickers hardness using 10 gf mass loads. The results of comparative parametric statistical tests one way ANOVA revealed that there was an effect of the addition of mint leaf extract (p<0.05), there is a significant difference in hardness values ​​between groups. Then from the LSD (least significant different) revealed that there is any significant difference in the value of acrylic resin hardness between each group in this study. So the addition of mint leaf extracts (Mentha piperita) affect the hardness of chemical activated acrylic resin.