scholarly journals Uji air perasan jeruk kesturi (Citrus microcarpa Bunge.) terhadap perubahan warna resin komposit yang direndam dalam larutan kopi

e-GIGI ◽  
2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Annabelle A. G. C. Sibilang ◽  
Pemsi M. Wowor ◽  
Juliatri .
Keyword(s):  
Study Design ◽  
Composite Resin ◽  
Color Change ◽  
Resin Composite ◽  
Composite Resins ◽  
Tooth Surface ◽  
Aesthetic Value ◽  
Case Study Design ◽  
Excessive Intake

Abstract: Color change or discoloration of the tooth surface is an aesthetic problem that is often complained because it reduces one’s confidence in terms of appearance. This problem can also occur on the surface of restorative materials inter alia composite resin. Composite resin is a tooth-colored restorative material that most people favor due to its aesthetic value. This discoloration can occur due to excessive intake of colored beverages like coffee. The treatment used for discoloration is bleaching, but these treatments have side effects. Calamondin (Citrus microcarpa Bunge.) can be an alternative bleaching agent because it contatins citric acid. This study was aimed to determine whether calamondin juice could affect the color change of composite resin soaked in coffee solution. This was a pre-experimental study with a one shot case study design. Samples were 10 composite resins with a diameter of 5 mm and 2 mm thick soaked in coffee solution for 7 days to obtain discoloration and then samples were soaked in calamondin juice for 5 days to whiten the samples. The discoloration was measured by using the CIEL*a*b* method at 60 minutes and 5 days after soaking in calamondin juice. The Friedman test showed significant changes (p<0.05). Conclusion: Calamondin juice affected the color change of composite resin that had been soaked in coffee solution.Keywords: composite resin, calamondin juice, color change Abstrak: Perubahan warna atau diskolorisasi pada permukaan gigi merupakan salah satu masalah estetika yang sering dikeluhkan karena mengurangi kepercayaan diri seseorang. Masalah ini juga dapat terjadi pada permukaan bahan tumpatan gigi, salah satunya adalah resin komposit. Resin komposit merupakan bahan tumpatan yang sewarna dengan gigi yang banyak digemari orang karena nilai estetiknya. Salah satu penyebab perubahan warna yaitu mengonsumsi minuman berwarna secara berlebih seperti kopi. Perawatan yang digunakan untuk masalah diskolorisasi ialah bleaching, namun perawatan ini memiliki efek samping. Jeruk kesturi (Citrus microcarpa Bunge.) dapat menjadi bahan alternatif bleaching karena karena mengandung asam sitrat. Penelitian ini bertujuan untuk mengetahui apakah air perasan jeruk kesturi berpengaruh terhadap perubahan warna resin komposit yang telah direndam dalam larutan kopi. Jenis penelitian ialah pre-eksperimental dengan one shot case study design. Penelitian ini menggunakan 10 sampel resin komposit dengan ukuran diameter 5 mm dan tebal 2 mm. Sampel direndam dalam larutan kopi selama 7 hari agar terjadi diskolorisasi kemudian direndam dalam air perasan jeruk kesturi selama 5 hari dengan tujuan untuk memutihkan kembali sampel. Pengukuran perubahan warna menggunakan metode CIEL*a*b dilakukan setelah perendaman 60 menit dan 5 hari. Uji Friedman menunjukkan terdapat perubahan bermakna (p<0,05). Simpulan: Air perasan jeruk kesturi berpengaruh terhadap perubahan warna resin komposit yang direndam dalam larutan kopi.Kata kunci: resin komposit, air perasan jeruk kesturi, perubahan warna

Ties to the outside: An exploration of faculty interactions with external organizations

2018 ◽  
Vol 4 (1) ◽  
pp. 295-313 ◽  
Author(s):  
Karley A Riffe
Keyword(s):  
Study Design ◽  
Financial Constraints ◽  
Academic Discipline ◽  
Faculty Members ◽  
Faculty Work ◽  
Case Study Design ◽  
Low Resource ◽  
Faculty Interactions ◽  
Embedded Case Study

Faculty work now includes market-like behaviors that create research, teaching, and service opportunities. This study employs an embedded case study design to evaluate the extent to which faculty members interact with external organizations to mitigate financial constraints and how those relationships vary by academic discipline. The findings show a similar number of ties among faculty members in high- and low-resource disciplines, reciprocity between faculty members and external organizations, and an expanded conceptualization of faculty work.

Topik-Topik Komunikasi Dakwah Dalam Mesej Akidah Kepada Masyarakat Orang Asli di Selangor

Sains Insani ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 15-21
Author(s):  
Zulkefli Aini ◽  
Abdul Ghafar Don ◽  
Ahmad Irdha Mokhtar ◽  
Nur Uswah Ahmad Fauzi
Keyword(s):  
Qualitative Study ◽  
Study Design ◽  
Verbal Feedback ◽  
Structured Interviews ◽  
Orang Asli ◽  
Case Study Design ◽  
Beliefs And Practice ◽  
Islamic Faith ◽  
Selection Of

One of the factors that can affect a person's behavior is a communication message. In the context of the da`wah, preachers who involved actively in da`wah communication with the Orang Asli should be able to ensure that the message conveyed can be understood by the target group. In addition, the selection of the correct messages of da`wah based on the foremost priority simplify the process of sharing information between the preachers and the Orang Asli. Accordingly, this article aims to identify specific topics of Islamic faith (akidah) submitted by the Orang Asli in the process of da`wah communication and to identify verbal feedback given by the preachers to the Orang Asli of the topics. This qualitative study using case study design and data was collected through semi-structured interviews. Interviews involving nine preachers were active in da`wah activity to the Orang Asli community in Selangor. Data were analyzed thematically according to the specified objectives. The study found that the topics frequently raised by the Orang Asli is concerned about belief in Allah, belief in Malaikat, and belief in Qada' and Qadar. The topics may be found within the framework of worldview in their beliefs and practice of ancient traditions. Therefore, the preachers gave verbal feedback on these topics is based on a clear and precise sample corresponding to the level of their thinking. The emphasis on these topics is very important to strengthen and purify the faith of the community.Keywords: Communication; Message; Preacher; Indigenous community Abstrak: Elemen mesej dalam komunikasi merupakan salah satu faktor yang dapat memberi kesan terhadap perubahan tingkah laku seseorang. Dalam konteks dakwah, pendakwah yang terlibat dalam proses komunikasi dakwah dengan Orang Asli seharusnya berkebolehan memastikan kandungan mesej yang disampaikan boleh difahami oleh sasaran dakwahnya. Di samping itu, pemilihan mesej dakwah yang betul mengikut keutamaan memudahkan proses perkongsian maklumat antara pendakwah dengan Orang Asli. Sehubungan dengan itu, artikel ini bertujuan untuk mengenalpasti topik-topik tertentu dalam mesej akidah yang dikemukakan oleh masyarakat Orang Asli kepada pendakwah dan mengenalpasti maklum balas lisan yang diberikan oleh pendakwah kepada Orang Asli terhadap topik tersebut. Kajian kualitatif ini menggunakan reka bentuk kajian kes dengan pengumpulan data melalui temu bual separa struktur. Temu bual melibatkan sembilan orang pendakwah yang aktif dalam aktiviti dakwah masyarakat Orang Asli di Selangor. Data kajian dianalisis secara tematik mengikut objektif yang ditentukan. Kajian ini mendapati bahawa topik-topik yang sering dikemukan oleh Orang Asli kepada pendakwah dalam penyampaian mesej akidah ialah berkenaan tentang keimanan kepada Allah SWT, keimanan kepada malaikat, dan keimanan kepada qada’ dan qadar. Topik-topik berkenaan didapati berada dalam kerangka worldview kepercayaan dan amalan tradisi mereka. Sehubungan dengan itu, pendakwah memberikan maklum balas lisan terhadap topik-topik tersebut adalah berdasarkan keterangan yang jelas dan contoh yang tepat bersesuaian dengan tahap pemikiran mereka. Penekanan terhadap topik-topik tersebut merupakan perkara yang penting dalam rangka mengukuhkan dan memurnikan akidah masyarakat Orang Asli.Kata kunci: Komunikasi; Mesej; Pendakwah; Komuniti Orang Asli

Capturing Transformative Moments in a Participatory Values-Based Event

2021 ◽  
pp. 154134462199624
Author(s):  
Felix Okechukwu Dike ◽  
JohnBosco Chika Chukwuorji
Keyword(s):  
Transformative Learning ◽  
Learning Outcomes ◽  
Study Design ◽  
Present Moment ◽  
Case Study Design ◽  
Fresh Perspective ◽  
The Stability

The theory of transformative learning (TL) has been criticized secondhand for its lack of clarity in capturing and explaining in detail the processes undergone by learners who are going through TL experiences and their link to learning outcomes. Using a case study design, and carefully synthesized TL processes (TLPs) from Mezirow’s TL theory, we present—moment by moment—the TLPs linked to outcomes identified among a group of teachers who participated in a values-based workshop. Participants were followed through interviews for over 72 weeks to trace the stability of their TL outcome. TL processes identified were compared to Mezirow’s 10 processes. The article discusses ontological transformations gained and offers fresh perspective to identifying TLPs that can be linked to outcomes.

Influence of Hydrogen Peroxide Bleaching Gels on Color, Opacity, and Fluorescence of Composite Resins

2012 ◽  
Vol 37 (5) ◽  
pp. 526-531 ◽  
Author(s):  
CRG Torres ◽  
CF Ribeiro ◽  
E Bresciani ◽  
AB Borges
Keyword(s):  
Hydrogen Peroxide ◽  
Composite Resin ◽  
Color Change ◽  
Composite Resins ◽  
Control Group ◽  
Peroxide Bleaching ◽  
Color Changes ◽  
Tukey Test ◽  
Bleaching Gels ◽  
Bleaching Treatment

SUMMARY The aim of the present study was to evaluate the effect of 20% and 35% hydrogen peroxide bleaching gels on the color, opacity, and fluorescence of composite resins. Seven composite resin brands were tested and 30 specimens, 3-mm in diameter and 2-mm thick, of each material were fabricated, for a total of 210 specimens. The specimens of each tested material were divided into three subgroups (n=10) according to the bleaching therapy tested: 20% hydrogen peroxide gel, 35% hydroxide peroxide gel, and the control group. The baseline color, opacity, and fluorescence were assessed by spectrophotometry. Four 30-minute bleaching gel applications, two hours in total, were performed. The control group did not receive bleaching treatment and was stored in deionized water. Final assessments were performed, and data were analyzed by two-way analysis of variance and Tukey tests (p&lt;0.05). Color changes were significant for different tested bleaching therapies (p&lt;0.0001), with the greatest color change observed for 35% hydrogen peroxide gel. No difference in opacity was detected for all analyzed parameters. Fluorescence changes were influenced by composite resin brand (p&lt;0.0001) and bleaching therapy (p=0.0016) used. No significant differences in fluorescence between different bleaching gel concentrations were detected by Tukey test. The greatest fluorescence alteration was detected on the brand Z350. It was concluded that 35% hydrogen peroxide bleaching gel generated the greatest color change among all evaluated materials. No statistical opacity changes were detected for all tested variables, and significant fluorescence changes were dependent on the material and bleaching therapy, regardless of the gel concentration.

scholarly journals Effect of saliva contamination on bond strength witha hydrophilic composite resin

2013 ◽  
Vol 18 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Mauren Bitencourt Deprá ◽  
Josiane Xavier de Almeida ◽  
Taís de Morais Alves da Cunha ◽  
Luis Filipe Siu Lon ◽  
Luciana Borges Retamoso ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Color Change ◽  
Resin Composite ◽  
Bonding Material ◽  
Adhesive Remnant Index ◽  
Composite Methods ◽  
Standard Deviations ◽  
Saliva Contamination

OBJECTIVE: To evaluate the influence of saliva contamination on the bond strength of metallic brackets bonded to enamel with hydrophilic resin composite. METHODS: Eighty premolars were randomly divided into 4 groups (n = 20) according to bonding material and contamination: G1) bonded with Transbond XT with no saliva contamination, G2) bonded with Transbond XT with saliva contamination, G3) bonded with Transbond Plus Color Change with no saliva contamination and G4) bonded with Transbond Plus Color Change with saliva contamination. The results were statistically analyzed (ANOVA/Tukey). RESULTS: The means and standard deviations (MPa) were: G1)10.15 ± 3.75; G2) 6.8 ± 2.54; G3) 9.3 ± 3.36; G4) 8.3 ± 2.95. The adhesive remnant index (ARI) ranged between 0 and 1 in G1 and G4. In G2 there was a prevalence of score 0 and similar ARI distribution in G3. CONCLUSION: Saliva contamination reduced bond strength when Transbond XT hydrophobic resin composite was used. However, the hydrophilic resin Transbond Plus Color Change was not affected by the contamination.

scholarly journals Praktik Pernikahan dalam Masyarakat Lokal: Agensi versus Agama

2020 ◽  
Vol 4 (1) ◽  
pp. 35-52
Author(s):  
Budiman Pohan ◽  
Muhamad Fadhil Nurdin
Keyword(s):  
Observational Data ◽  
Study Design ◽  
Research Method ◽  
Power Relations ◽  
Local Elites ◽  
Case Study Design ◽  
Local Elite ◽  
Qualitative Descriptive ◽  
Dialectical Process

This study aims to describe the dialectical process between local agents and religious structures in the practice of marriage in Padang Sidempuan. The research method is qualitative descriptive with a case study design that focuses on narrating the objective conditions of agent and structure duality. Informants were chosen purposively, supported by observational data, interviews, and documentation. Data analyzed through the process of collection, reduction, exposition, verification, and conclusion. The results showed that: 1) Conceptually, the practice of marriage experienced practical distortions that were configured through consensus of sharia and local elites; 2) the practice of marriage is a phenomenon of the duality of agents and structuring each other; 3) agent habitus is dominated by Mandailing culture through power relations and surplus capital of the local elite compared to the sharia procedure of religious structure. However, the competence of agents is able to compress marital rules into semi-complex; 4) the importance of promoting religious habituation strategies through internalization and dissemination of alternative sharia marriage practices.

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