scholarly journals Clinical Evaluation of the Effectiveness of Whitening Dentifrices

2019 ◽  
Vol 21 (1) ◽  
pp. 82
Author(s):  
Geisiele Aparecida Biscaia Justino ◽  
Ingrid Carletto Dalmolin ◽  
Naiana Mello Cançado ◽  
Anna Luiza Szesz ◽  
Eveline Claudia Martini
Keyword(s):  
Color Change ◽  
Subjective Evaluation ◽  
Objective Evaluation ◽  
Negative Control ◽  
Tooth Bleaching ◽  
Patient’S Satisfaction ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Post Test ◽  
Initial Color

O objetivo deste estudo clínico foi avaliar, por 7 semanas, a eficácia de dentifrícios clareadores e a satisfação dos pacientes após o uso. Foram selecionados 30 pacientes que possuíssem todos os dentes anteriores nas arcadas superior e inferior, apresentando cor inicial A2, avaliados através da escala de cores Vita Classical (Vita Zahnfabrik, Bad Säckingen, Alemanha). Os participantes foram aleatoriamente divididos em 3 grupos (n=10): GA - Colgate® Máxima Proteção Anticáries (controle negativo), GB - Colgate® Luminous  White  e GC - Colgate® Luminous White Advanced. Os dentifrícios foram distribuídos em bisnagas idênticas e aleatorizados. As avaliações de cor foram realizadas inicialmente ao uso (baseline), após 7, 15, 30 e 60 dias, utilizando dois métodos: avaliação subjetiva com as escalas de cor Vita Classical (Vita Zahnfabrik, Bad Säckingen, Alemanha) e Vita Bleachedguide 3D-MASTER (Vita Zahnfabrik, Bad Säckingen, Alemanha), e avaliação objetiva através do espectrofotômetro VITA Easyshade Compact®, Vident, Brea, CA, USA). Foi considerada a satisfação do paciente quanto a mudança de cor dos dentes. Os dados foram submetidos à análise estatística, utilizando análise de variância (ANOVA) de três critérios e pós-teste de Tukey (α=0.05).  Os resultados demonstraram que houve diferença de cor estatisticamente significante nos grupos em que se utilizou os dentifrícios clareadores (GB e GC), nos períodos entre 15 e 30 dias. Conclui-se que ambos os dentifrícios GB e GC apresentaram ação clareadora, observado através das escalas subjetiva e objetiva. Porém, na percepção do paciente apenas no grupo GC houve mudança de cor.Palavras-chave: Dentifrícios. Clareamento Dental. Estética Dentária.AbstractThe objective of this clinical study was to evaluate, for 7 weeks, the efficacy of whitening dentifrices and the patients' satisfaction after use. 30 patients were selected who had all the anterior teeth in the upper and lower arches, presenting an initial color A2, evaluated through the Vita Classical color scale (Vita Zahnfabrik, Bad Säckingen, Germany). The participants were randomly divided into 3 groups (n = 10): GA - Colgate® Maximum Antibody Protection (Negative Control), GB - Colgate® Luminous White and GC - Colgate® Luminous White Advanced. The dentifrices were distributed in identical and randomized tubes. The color evaluations were performed at baseline after 7, 15, 30 and 60 days using two methods: subjective evaluation with the Vita Classical (Vita Zahnfabrik, Bad Säckingen, Germany) and Vita Bleachedguide 3D- MASTER (Vita Zahnfabrik, Bad Säckingen, Germany), and objective evaluation using VITA Easyshade Compact® spectrophotometer, Vident, Brea, CA, USA). The patient's satisfaction with the teeth  color change  was considered. The data were submitted to statistical analysis using ANOVA of three criteria and Tukey post-test (α = 0.05). The results showed that there was a statistically significant difference in color in the groups in which the whitening dentifrices were used (GB and GC), in periods between 15 and 30 days. It was concluded that both GB and CG dentifrices presented a whitening action, observed through the subjective and objective scales. However, in the perception of the patient only in the CG group there was a change of color.Keywords: Dentifrices. Tooth Bleaching. Esthetics, Dental.  

scholarly journals Effect of Prior Application of Desensitizing Agent on the Teeth Submitted to In-Office Bleaching

2020 ◽  
Vol 31 (3) ◽  
pp. 236-243
Author(s):  
Sibelli Olivieri Parreiras ◽  
Michael Willian Favoreto ◽  
Rubia Elisa Lenz ◽  
Maria Eduarda Serra ◽  
Christiane Philippini Ferreira Borges ◽  
...  
Keyword(s):  
Color Change ◽  
Negative Control Group ◽  
Negative Control ◽  
Tooth Bleaching ◽  
Control Group ◽  
Pulp Chamber ◽  
Bleaching Procedure ◽  
Significant Difference ◽  
Mi Paste ◽  
Desensitizing Agents

Abstract This study aimed to quantify the penetration of hydrogen peroxide, color change evaluation, surface morphology, and composition after application of desensitizing agents before in-office bleaching. Fifty premolars were sectioned, an acetate buffer was placed in the pulp chamber and divided into five groups (n=10). In the positive control group, only the in-office bleaching gel was used, and in the negative control group, no treatment was used. Three different desensitizing agents were applied: Desensibilize KF2%® group; Mi Paste® group, and Desensibilize Nano-P® group. The bleaching procedure was carried out with 35% HP. The absorbance of the resulting solution was determined in a spectrophotometer. Color change was assessed by using a digital spectrophotometer. Four additional premolars were assigned to the same groups above for analysis under scanning electron microscope, as well as to evaluate the elemental composition with X-ray dispersive energy spectrometry. Data were subjected to ANOVA and Tukey's test (α=0.05). All products reduced the penetration of HP in the pulp chamber. Mi Paste and Nano P were the products that yielded the lowest HP penetration, which was similar to the negative control group (p<0.001). No significant difference was detected in color change (p<0.001). Concerning enamel morphology, the groups that were analyzed after bleaching were observed a greater deposition of desensitizing agents on the surface. The use of desensitizing agents before tooth bleaching seems to be an alternative to reduce adverse effects of the tooth.

Effectiveness of Dental Bleaching With 37.5% and 6% Hydrogen Peroxide and Its Effect on Quality of Life

2019 ◽  
Vol 44 (2) ◽  
pp. 146-155 ◽  
Author(s):  
C Bersezio ◽  
J Estay ◽  
G Jorquera ◽  
M Peña ◽  
C Araya ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Subjective Evaluation ◽  
Psychosocial Impact ◽  
Self Perception ◽  
Tooth Whitening ◽  
Double Blind ◽  
Anterior Teeth ◽  
Significant Difference ◽  
The Difference ◽  
Initial Color

SUMMARY Objective: This study investigated whether it is possible to achieve equally satisfactory results between 37.5% hydrogen peroxide (HP) gel and 6% HP gel. We also assessed the psychosocial impact and self-perception of esthetics generated by extracoronal tooth whitening. Methods and Materials: A prospective, double-blind, randomized clinical trial was carried out. A total of 33 patients were selected from the clinic of the Faculty of Dentistry at the University of Chile. The patients included men and women over 18 years old without prior tooth whitening treatments, tooth decay, or restorations of the maxillary anterior teeth. The patients had tooth colors of A3 or less according to the Vita Classical scale, which was determined with a Vita Easy Shade spectrophotometer. The study was carried out with a “split-mouth” design. One side of each mouth was randomly treated with 37.5% HP, and the other side was bleached with 6% HP. Each group received 3 to 12 minutes of treatment with the respective gel applications. Two sessions of bleaching were carried out each week. A spectrophotometer was used to measure the total variation of color (ΔE), and a subjective evaluation was made with Vita Classical scale (ΔSGU) between the baseline (session 1) and different measurement times. We compared ΔE and ΔSGU for both agents using the Mann-Whitney test (α=0.05). Results: In both groups, there was variation among the initial color and the color in the different measurement times. In the month after the treatment was completed, ΔE was 9.06 in the 37.5% HP group and 5.69 in the 6% HP group. The difference between the two groups was statistically significant starting in the second session (p=0.000). Conclusion: There was a significant difference between the effectiveness of the bleaching gel concentrations of 37.5% and 6% HP according to spectrophotometer measurements and subjective evaluations. There was also a positive effect on psychosocial impact and esthetic self-perception among patients.

Surface properties of composite resins with and without fluorides for bracket bonding / Propriedades de superfície de resinas compostas com e sem fluoretos para colagem de suportes

2021 ◽  
Vol 7 (7) ◽  
pp. 67267-67276
Author(s):  
Emillyn Jones Greijal Dias Holanda ◽  
José Guilherme Neves ◽  
Milton Santamaria-Jr ◽  
Silvia Amélia Scudeler Vedovello ◽  
Ana Rosa Costa ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Surface Properties ◽  
Color Change ◽  
Composite Resins ◽  
Hardness Tester ◽  
Significant Difference ◽  
Post Test ◽  
Roughness Analysis ◽  
Diamond Paste ◽  
Penetration Time

The aim of this study was to evaluate the surface properties of orthodontic resins with and without fluoride. Forty disks, measuring 2 mm thick by 6 mm in diameter, were made of 4 bracket-bonding composite resins (n=10): Transbond Plus Color Change-3M/Unitek (TPCC); Transbond XT- 3M/Unitek (TXT), Orthocem -FGM (OC); Orthocem UV Trace-FGM (OCUV). The discs were photoactivated for 40 seconds with irradiance of 450 mW/cm2 and manually polished in sequence by silicon carbide sandpapers with 1200 and 2000 grain size and finished with diamond paste and felt disc. The surface microhardness analysis was performed using a Shimadzu Micro Hardness Tester HMV-2,000 (Shimadzu Corporation, Kyoto, Japan) with a load of 50 gF and a 5 second penetration time. Surface roughness readings were taken using a Surf Corder Roughness Meter (SE 1700- Kosaka, Lisboa-Portugal). For data analysis, ANOVA (one-way) was used, followed by Tukey's post-test (?=0.05). The microhardness results showed a difference (p?0.05) in the means of the orthodontic resins between TPCC and TXT with the other groups. After the surface roughness analysis, the averages showed that TPCC resin showed higher roughness compared to OC and OCUV (p?0.05), and there was no statistical difference with TXT. It was concluded that statistically the composite resins with fluoride showed significant difference regarding hardness and roughness.

scholarly journals Evaluation of the Sealing Ability of Three Obturation Techniques Using a Glucose Leakage Test

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Katarzyna Olczak ◽  
Halina Pawlicka
Keyword(s):  
Continuous Wave ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Thermal Methods ◽  
Root Canals ◽  
Anterior Teeth ◽  
Sealing Ability ◽  
Significant Difference

The aim of this study was to evaluate the sealing ability of three different canal filling techniques. Sixty-four roots of extracted human maxillary anterior teeth were prepared using ProTaper® rotary instruments. The specimens were then randomly divided into 3 experimental groups (n=16) and 2 control groups (n=8). The root canals were filled using cold lateral compaction (CLC group), continuous wave condensation technique using the Elements Obturation Unit® (EOU group), and ProTaper obturators (PT group). For the negative control group, 8 roots were filled using lateral compaction as in the CLC group, and the teeth were covered twice with a layer of nail varnish (NCG group). Another 8 roots were filled using lateral compaction, but without sealer, and these were used as the positive control (PCG group). A glucose leakage model was used for quantitative evaluation of microleakage for 24 hours and 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 weeks. No significant difference in the cumulative amount of leakage was found between the three experimental groups at all observation times. The lateral condensation of cold gutta-percha can guarantee a similar seal of canal fillings as can be achieved by using thermal methods, in the round canals.

Comparison of Two At-home Whitening Products of Similar Peroxide Concentration and Different Delivery Methods

2012 ◽  
Vol 37 (4) ◽  
pp. 333-339 ◽  
Author(s):  
JB da Costa ◽  
R McPharlin ◽  
T Hilton ◽  
JL Ferracane ◽  
M Wang
Keyword(s):  
Soft Tissue ◽  
Color Change ◽  
Color Difference ◽  
Delivery Methods ◽  
Tooth Color ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Tissue Sensitivity ◽  
The Right ◽  
At Home

SUMMARY Purpose This study compared the whitening efficacy, side effects, and patients' preferences/perceptions of two whitening systems of similar peroxide concentration but different formulation and delivery methods. Methods The tooth color change of 24 participants was measured using a shade guide (BSG) and a spectrophotometer (ES). Color difference was calculated: ΔE* = [(ΔL*)2 + (Δa*)2 + (Δb*)2]1/2. One whitening treatment was randomly applied to the right or left maxillary anterior teeth and the other was applied to the contralateral teeth, at-home with 35% carbamide peroxide in a tray (TW) or with 14% hydrogen peroxide in strips (WS). The tooth color was evaluated at baseline, 15 and 30 days (15 days postwhitening). Participants rated their tooth and soft tissue sensitivity (1–10 scale) and completed a questionnaire on their preferences. Results were analyzed by repeated measurement regression analysis/Tukey and Mann-Whitney (p&lt;0.05). Results At 15 days, the teeth treated with TW and WS presented ΔE* = 7 and 6, respectively (ΔBSG=3 for both), and at 30 days, they presented ΔE* = 7.5 and 6.5, respectively (ΔBSG=3 for both). There was no significant difference in tooth and soft tissue sensitivity between treatments. No participant reported tooth and gingival sensitivity at the postwhitening appointment. Of the participants, 83% preferred the TW over WS. Conclusion Both ΔE* and ΔBSG showed no significant difference in tooth color change between TW and SW at either time point. By the end of the study no participants reported tooth and gingival sensitivity. Participants preferred TW over SW.

scholarly journals Quick Evaluation of Lower Leg Ischemia in Patients with Peripheral Arterial Disease by Time Maximum Intensity Projection CT Angiography: A Pilot Study

2020 ◽  
Author(s):  
Daming Zhang ◽  
Xueyan Zhou ◽  
Haiping Zhang ◽  
Xiaobing Fan ◽  
Zehong Lin ◽  
...  
Keyword(s):  
Peripheral Arterial Disease ◽  
Subjective Evaluation ◽  
Maximum Intensity Projection ◽  
Objective Evaluation ◽  
Arterial Disease ◽  
Lower Leg ◽  
Maximum Intensity ◽  
Ct Attenuation ◽  
Significant Difference ◽  
Peripheral Arterial

Abstract Background: The purpose of this study is to evaluate the new method of time maximum intensity projection (t-MIP) which was postprocessed from dynamic computed tomographic angiography (dyn-CTA) in diagnosing peripheral arterial disease (PAD). Methods: A population of 34 patients with known PAD was examined with a combined CTA protocol consisting of an s-CTA of the lower extremity and a dyn-CTA scan of the calves. For each lower leg, t-MIP images consisting of the MIP0 (sagittal MIP), and MIP+θ (45degree lateral MIP), MIP-θ (-45degree lateral MIP) were automatically generated from dyn-CTA. An objective evaluation of vascular CT attenuation of the best enhancement phase of dyn-CTA and t-MIP was measured; subjective evaluation of vessel stenosis and occlusion with a score was assigned for t-MIP and s-CTA. A comparison between the CT attenuation of t-MIP and dyn-CTA was made, so was the runoff score of t-MIP and s-CTA.Results: The CT attenuation of t-MIP CTA of three vascular segments from 68 lower extremities was higher than that of the best enhancement phase of dyn-CTA and s-CTA, with statistical significant difference at posterior tibial artery and fibular artery (all p＜0.05) . There were strong correlations (r ≥0.75, p < 0.05) of runoff scores between t-MIP and s-CTA. Conclusions: There is potential clinical application of t-MIP for assisting with the diagnosis of lower leg vascular stenosis in dyn-CTA with reliable diagnostic accuracy and convenient immediacy.

scholarly journals Perbedaan efektivitas jus tomat (Lucopersicon esculentum Mill.) dan jus apel (Mallus sylvestris Mill.) sebagai bahan alami pemutih gigi

e-GIGI ◽  
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Enny F. S. Lumuhu ◽  
Martha M. Kaseke ◽  
Wulan G. Parengkuan
Keyword(s):  
Apple Juice ◽  
Color Change ◽  
Human Interaction ◽  
Tomato Juice ◽  
Control Group ◽  
Carbamide Peroxide ◽  
Control Group Design ◽  
Anterior Teeth ◽  
Tooth Discoloration ◽  
Significant Difference

Abstract: Teeth appearance plays an important role in human interaction. One of its problems is tooth discoloration which can affect personal self confidence and appearance. Chemicals for whitening the teeth can cause negative effects such as decreased enamel hardness and gingival iritaion. An alternative material that can be used for that purpose is natural substance inter alia tomato juice (Lucopersicon esculentum Mill.) which contains hydrogen peroxide and apple juice (Mallus sylvestris Mill.) which contains malic acid. This study aimed to determine the difference in effectiveness of tomato juice and apple juice as natural bleaching agents. This was a true experimental study with a pretest postest only control group design. There were 30 samples of post-extraction anterior teeth soaked in coffee for 12 days and were further divided into 3 groups, each of 10 samples. Group 1 was immersed in tomato juice; group 2 was immersed in apple juice; and group 3 as the positive control was immersed in carbamide peroxide 10%. Each group was observed after 1 day, 3 days, and 5 days. The color change was measured by using CIEL*a*b method. The results showed that tomato juice, apple juice, and carbamide peroxide 10% could whiten the teeth. However, tomato juice was more effective compared to apple juice and carbamide peroxide 10%. Apple juice and carbamide peroxide 10% did not show any significant difference in color change. Keywords: tomato juice, apple juice, carbamide peroxide 10%, tooth discolorationAbstrak: Penampilan gigi berperan dalam interaksi manusia. Masalah dalam penampilan gigi salah satunya ialah perubahan warna gigi yang dapat memengaruhi kepercayaan diri dan keindahan penampilan seseorang. Penggunaan bahan kimia untuk memutihkan gigi dapat berdampak negatif seperti penurunan kekerasan email dan iritasi gingiva. Bahan alternatif yang dapat digunakan untuk memutihkan gigi yaitu dengan bahan alami antara lain jus tomat (Lucopersicon esculentum Mill.) yang mengandung hidrogen peroksida dan jus apel (Mallus sylvestris Mill.) yang mengandung asam malat. Penelitian ini bertujuan untuk mengetahui perbedaan efektivitas jus tomat dan jus apel sebagai bahan alami pemutih gigi. Terdapat 30 sampel gigi anterior pasca ekstraksi yang direndam kopi selama 12 hari. Sampel dibagi menjadi 3 kelompok masing-masing terdiri dari 10 sampel. Kelompok 1 direndam dalam jus tomat; kelompok 2 direndam dalam jus apel; dan kelompok 3 sebagai kontrol positif menggunakan karbamid peroksida 10%. Setiap kelompok dilakukan pengamatan 1 hari, 3 hari dan 5 hari. Perubahan warna diukur menggunakan metode CIEL*a*b. Hasil penelitian mendapatkan jus tomat, jus apel, dan karbamid peroksida 10% dapat memutihkan gigi. Jus tomat lebih efektif memutihkan gigi dibandingkan jus apel dan karbamid peroksida 10%. Jus apel dan karbamid peroksida 10% tidak memiliki perbedaan memutihkan gigi yang signifikan.Kata kunci: jus tomat, jus apel, karbamid peroksida 10%, perubahan warna gigi

scholarly journals Porositas Lempeng Resin Akrilik Pasca Perendaman Rebusan Daun Sirih dan Kayu Siwak

2018 ◽  
Vol 4 (1) ◽  
pp. 39
Author(s):  
Yustin Nur Khoiriyah
Keyword(s):  
Acrylic Resin ◽  
Negative Control ◽  
Control Group ◽  
Control Group Design ◽  
Betel Leaf ◽  
Significant Difference ◽  
Antimicrobial Function ◽  
Post Test ◽  
Boiled Water ◽  
One Way Anova

Abstract: Porosity Of Acrylic Resin After Immersion In The Boiled Water Of Betel Leaves And Siwak Wood. Denture acrylic resin can be a collection point for stain, tar, and plaque and this will adversely affect the oral health of the denture wearer. One way to clean the oral cavity of denture users is to use mouthwash and soak the teeth with a cleaning solution/denture cleanser. Mouthwash solutions and chemical-based cleaning solutions at relatively high prices, and affect the porosity of dentures. Therefore, the need for alternative materials that are safe, cheap, natural as well as having antimicrobial function without affecting the level of porosity of denture. This study was to determine the effect of the combination of boiled water of betel leaves and siwak wood to the porosity of the acrylic resin plate. This study was an experimental study, posttest only design with the control group has been done at the integrated laboratory of Poltekkes Tanjungkarang, July – December 2015. Data were analyzed by One Way ANOVA and continued with Least Significant Difference test. The results showed that the combination of betel leaves and siwak wood does not affect the porosity of the acrylic resin plate. The highest concentration of the combination of betel leaf water and siwak wood that did not differ significantly with negative control (aquades) was 75% with longest immersion period was 59 days. Abstrak: Porositas Lempeng Resin Akrilik Pasca Perendaman Rebusan Daun Sirih Dan Kayu Siwak. Gigi tiruan resin akrilik dapat menjadi tempat pengumpulan stain, tar, dan plak dan hal ini akan berpengaruh jelek terhadap kesehatan mulut pemakai gigi tiruan. Salah satu cara menjaga kebersihan rongga mulut pengguna gigi tiruan adalah dengan menggunakan obat kumur dan merendam gigi-tiruan tersebut dengan larutan pembersih/denture cleanser. Larutan obat kumur dan larutan pembersih berbahan dasar dari bahan kimia dengan harga yang relatif mahal, serta mempengaruhi porositas gigi tiruan. Oleh karena itu, perlu adanya bahan alternatif yang aman, murah, alami sekaligus memiliki fungsi antimikroba dengan tanpa mempengaruhi tingkat porositas gigi tiruan. Tujuan penelitian ini adalah untuk mengetahui pengaruh kombinasi air rebusan daun sirih dan kayu siwak terhadap porositas lempeng resin akrilik. Penelitian ini adalah penelitian eksperimental, rancangan post test only with control group design, dilaksanakan di Laboratorium Terpadu Poltekkes Tanjungkarang, Juli-Desember 2015. Analisis data dengan uji One Way ANOVA dan dilanjutkan uji Least Significant Difference. Hasil penelitian menunjukkan bahwa kombinasi air rebusan daun sirih dan kayu siwak tidak mempengaruhi porositas lempeng resin akrilik. Konsentrasi tertinggi dari kombinasi air rebusan daun sirih dan kayu siwak yang tidak berbeda signifikan dengan kontrol negatif (aquades) adalah 75% dengan lama perendaman terpanjang yaitu 59 hari.

scholarly journals Sealing Ability of Mineral Trioxide Aggregate, Biodentine and Glass Ionomer as Root-End Materials: A Question of Choice

2021 ◽  
Vol 49 (3) ◽  
pp. 232
Author(s):  
Aida Džanković ◽  
Naida Hadžiabdić ◽  
Samra Korać ◽  
Irmina Tahmiščija ◽  
Alma Konjhodžić ◽  
...  
Keyword(s):  
Mineral Trioxide Aggregate ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Dye Penetration ◽  
Anterior Teeth ◽  
Sealing Ability ◽  
Significant Difference ◽  
The Difference

<p class="Default"> </p><p class="Default"><strong><span>Objectives</span></strong><span>. The goal of this study was to determine the sealing ability of MTA, Biodentine, and Fuji IX as root-end materials after ultrasonic retrograde preparation using a dye penetration method. </span></p><p class="Default"><strong><span>Materials and Methods</span></strong><span>. Seventy permanent anterior teeth were used in this study. Root canals were prepared using rotary endodontic files, and obturated using the lateral condensa­tion technique. The resection of the root apices was performed perpendicularly to the long axis, and 3 mm deep retrocavities were made by ultrasonic tips. The samples were randomly divided into three experimental groups (N=20) and two control groups (N=5). The root-end cavities were filled with mineral-trioxide aggregate (Rootdent MTA, TehnoDent, Russia) in Group 1, Biodentine (Septodont, Saint Maur des Fossés, France) in Group 2 and Fuji IX GP (GC Corporation, Tokyo, Japan) in Group 3. The retrocavities of the positive control group were left unfilled, while retrocavities in the negative control group were sealed using a flowable composite material. The samples were made transparent, and dye penetration was assessed under a stereomi­croscope (x10). The data were analyzed with the Kruskal-Wallis test and the Mann-Whitney U-test. </span></p><p class="Default"><strong><span>Results</span></strong><span>. The Biodentine group had a lower mean leakage value than the MTA and Fuji IX groups, and the difference was statistically significant (P&lt;0.01). No statistical difference in apical microleakage was found between the MTA and Fuji IX groups (P&gt;0.05). </span></p><p class="Default"><strong><span>Conclusion</span></strong><span>. Within the limitations of this study, it was concluded that Biodentine provides better sealing ability as a root-end material than MTA and Fuji IX. There was no statistically significant difference between the sealing ability of MTA and Fuji IX as root-end materials.</span></p>

scholarly journals EFEKTIVITAS EKSTRAK DAUN JERUK PURUT (Citrus hystrix) SEBAGAI INSEKTISIDA ALAMI TERHADAP KECOAK AMERIKA (Periplaneta americana) DENGAN METODE SEMPROT

2020 ◽  
Vol 8 (1) ◽  
pp. 8-14
Author(s):  
Hanina Hanina ◽  
Sarah Madeleyne Baringbing
Keyword(s):  
Leaf Extract ◽  
Periplaneta Americana ◽  
Positive Control ◽  
Negative Control ◽  
Probit Analysis ◽  
Observation Time ◽  
American Cockroach ◽  
Control Group ◽  
Significant Difference ◽  
Post Test

ABSTRACT Cockroach control can be done in various ways one of which is spraying insecticide. Natural insecticides are less dangerous than conventional insecticides. This study aimed to determined the effectiveness of kaffir lime leaf extract (Citrus hystrix) as a natural insecticide against cockroach americana (Periplaneta americana) with spray method. This research was an experimental study with a post-test only control group designed design. The sample in this study was 60 cockroaches, the sample was divided into 6 groups: negative control (aquades), positive control (transflutrin 0.06%) and and 4 test groups with concentrations of kaffir lime leaf extract (20%, 40%, 60% , and 80%) each group consisted of 10 cockroaches. Phytochemical tests were carried out to determine the content of secondary metabolites in extracts of kaffir lime leaves. Positive phytochemical test results containing flavonoids, alkaloids and essential oils. Based on probit analysis, it is known that the LC50 value = 58.5%; LC95 = 85.1%. The time of death of LT50 is fastest at a concentration of 60% (3,036 hours) and LT95 is the fastest at a concentration of 80% (5,960 hours). Anova test analysis results showed that the positive control group had no significant difference with kaffir lime leaf extract concentration of 80% Kaffir lime leaf extract has an insecticide effect, the higher the concentration of kaffir lime leaf extract, the more number of dead cockroaches and the longer the observation time, the number of cockroaches death will also increase. Keywords: American cockroach, kaffir lime leaf extract, cockroach death   ABSTRAK Pengendalian kecoa dapat dilakukan dengan berbagai cara salah satunya penyemprotan insektisida. Insektisida alami kurang berbahaya dibanding insektisida konvensional. Penelitian ini bertujuan untuk mengetahui efektifitas ekstrak daun jeruk purut (Citrus hystrix) sebagai insektisida alami terhadap kecoak americana (Periplaneta americana) dengan metode semprot. Jenis penelitian ini adalah penelitian eksperimental dengan rancangan post-test only control group designed. Sampel dalam penelitian ini adalah 60 ekor kecoak, sampel dibagi menjadi 6 kelompok yaitu kontrol negatif (aquades), kontrol positif (transflutrin 0,06%) dan dan 4 kelompok uji dengan konsentrasi ekstrak daun jeruk purut (20%, 40%, 60%, dan 80%) masing-masing kelompok terdiri dari 10 ekor kecoak. Uji fitokimia dilakukan untuk mengetahui kandungan senyawa metabolit sekunder pada ekstrak daun jeruk purut. Hasil uji fitokimia positif mengandung flavonoid, alkaloid dan minyak atsiri. Berdasarkan analisis probit, diketahui nilai LC50 = 58,5%; LC95 = 85,1%. Waktu kematian LT50 paling cepat pada konsentrasi 60% (3,036 jam) dan LT95 paling cepat pada konsentrasi 80% (5,960 jam). Hasil analisis uji anova menunjukkan bahwa kelompok kontrol positif tidak terdapat perbedaan yang signifikan dengan ekstrak daun jeruk purut konsentrasi 80% Ekstrak daun jeruk purut memiliki efek insektisida, semakin tinggi konsentrasi ekstrak daun jeruk purut maka jumlah kecoak yang mati semakin banyak dan semakin lama waktu pengamatan, maka jumlah kecoak yang mati juga akan semakin banyak. Kata kunci : kecoak amerika, ekstrak daun jeruk purut, kematian kecoak

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