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PENGARUH LAMA DESINFEKSI DENGAN ENERGI MICROWAVE TERHADAP PERUBAHAN DIMENSI DAN JUMLAH CANDIDA ALBICANS BASIS GIGI TIRUAN RESIN AKRILIK POLIMERISASI PANAS: DISINFECTION DURATION EFFECT OF MICROWAVE ENERGY TO DIMENSIONAL CHANGE AND QUANTITY OF CANDIDA ALBICANS ON HEAT POLYMERIZATION ACRYLIC RESIN DENTURE BASE Putri Welda Utami Ritonga; Haslinda Tamin; Dwi Suryanto
Dentika: Dental Journal Vol. 17 No. 3 (2013): Dentika Dental Journal
Publisher : TALENTA

Metode desinfeksi dengan energi microwave merupakan metode yang efektif karena dapat membunuh beberapa mikroorganisme. Penelitian ini bertujuan untuk mengetahui pengaruh lama desinfeksi dengan energi microwave terhadap perubahan dimensi dan jumlah Candida albicans basis gigi tiruan resin akrilik polimerisasi panas serta korelasi antara perubahan dimensi dan jumlah Candida albicans basis gigi tiruan resin akrilik polimerisasi panas terhadap lama desinfeksi dengan energi microwave. 64 sampel resin akrilik polimerisasi panas berbentuk batang uji berukuran 65 mm x 10 mm x 2,5 mm digunakan pada penelitian ini, dan dibagi menjadi 4 kelompok untuk pengukuran perubahan dimensi dan 4 kelompok untuk penghitungan jumlah Candida albicans, yaitu masing-masing 8 sampel didesinfeksi dengan microwave berdaya 800 watt selama 2, 3, 4 menit dan kontrol. Data dianalisis dengan uji Anova satu arah dan Pearson. Hasil penelitian menunjukkan ada pengaruh lama desinfeksi dengan energi microwave terhadap perubahan dimensi basis gigi tiruan resin akrilik polimerisasi panas dengan nilai p= 0,001, dan terhadap jumlah Candida albicans pada basis gigi tiruan resin akrilik polimerisasi panas dengan nilai p= 0,001, namun tidak ada korelasi antara perubahan dimensi dan jumlah Candida albicans untuk setiap kelompok. Sebagai kesimpulan, desinfeksi dengan energi microwave dapat dilakukan dalam 3 menit dengan daya 800 watt, karena efektif mendesinfeksi basis gigi tiruan resin akrilik polimerisasi panas dan perubahan dimensi yang terjadi masih termasuk dalam batas toleransi.

PENGARUH TEKNIK PENCETAKAN FISIOLOGIS TERHADAP CACAT PERMUKAAN CETAKAN Putri Welda Utami Ritonga; Nafsani Fauzia
Cakradonya Dental Journal Vol 10, No 2 (2018): Agustus 2018
Publisher : FKG Unsyiah

Prosedur penting yang harus dilakukan untuk mendapatkan cetakan dan membuat model kerja yang akurat adalah pemilihan dan penggunaan teknik pencetakan dan bahan cetak yang tepat. Pada pembuatan model kerja gigi tiruan cekat perlu diperhatikan kualitas permukaannya untuk mendapatkan model yang baik. Penelitian ini bertujuan untuk mengetahui pengaruh teknik pencetakan fisiologis terhadap cacat permukaan cetakan. Penelitian ini merupakan penelitian eksperimental laboratoris. Sampel pada penelitian ini adalah hasil pencetakan model induk dengan bahan elastomer, model induk berukuran 6,33 mm untuk ukuran mesiodistal, 8,02 mm untuk ukuran oklusogingival dan 28,25 mm untuk ukuran interabutment berjumlah 30 buah pada masing-masing teknik dan diperiksa cacat permukaan cetakannya dengan menggunakan kaca pembesar. Setelah itu, hasil dari cacat permukaan diuji menggunakan chi-square. Hasil penelitian menunjukkan tidak ada perbedaan antara teknik pencetakan putty wash one-step dan two-step terhadap cacat permukaan. Dapat disimpulkan, kedua teknik pencetakan putty wash one-step dan two-step dapat digunakan untuk mendapatkan cetakan yang baik.

The role of intraoral abrasion pressure with alumunium oxide on the bond strength of resin cement in adhesive bridge restorations Uliani, Hanna Mentari; Putri Welda Utami Ritonga; Haslinda Z. Tamin
Indonesian Journal of Prosthodontic Vol 5 No 1 (2024): June 2024
Publisher : Indonesia Prosthodontic Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46934/ijp.v5i1.199

Background: Adhesive bridge is a fixed denture with minimal abutment preparation attached with resin cement. Exposure of the dentin during preparation in the posterior region causes frequent detachment of the adhesive bridge. This is due to the presence of fluid and changes in the smear layer on the dentinal tubules, to increase bond strength, the intraoral abrasion method was developed. Intraoral abrasion is a mechanical technique using air and water sprays to produce tooth surface roughness while increasing bond strength without damaging the tooth structure. Objective: One of the intraoral abrasion materials used is aluminum oxide (Al2O3). One of the operating parameters of intraoral abrasion that can affect bond strength between resin cement and the tooth surface is pressure. Optimal intraoral abrasion pressure with Al2O3 and the right type of resin cement aims to create tooth surface roughness while increasing the bond strength of resin cement in adhesive bridge restorations. Conclusions: The success of adhesive bridges, especially in the posterior area, cannot be separated from the role of optimum intraoral abrasion pressure on the tooth surface. The correct use of intraoral abrasion pressure can increase the bond strength of resin cement on the tooth surface while reducing tooth structure damage. Keywords: adhesive bridge, adhesive resin cement, intraoral abrasion, alumunium oxide, water airborne abrasion.

PENGARUH TEKNIK PENCETAKAN FISIOLOGIS TERHADAP CACAT PERMUKAAN CETAKAN Putri Welda Utami Ritonga; Nafsani Fauzia
Cakradonya Dental Journal Vol 10, No 2 (2018): Agustus 2018
Publisher : FKG Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/cdj.v10i2.11714

Prosedur penting yang harus dilakukan untuk mendapatkan cetakan dan membuat model kerja yang akurat adalah pemilihan dan penggunaan teknik pencetakan dan bahan cetak yang tepat. Pada pembuatan model kerja gigi tiruan cekat perlu diperhatikan kualitas permukaannya untuk mendapatkan model yang baik. Penelitian ini bertujuan untuk mengetahui pengaruh teknik pencetakan fisiologis terhadap cacat permukaan cetakan. Penelitian ini merupakan penelitian eksperimental laboratoris. Sampel pada penelitian ini adalah hasil pencetakan model induk dengan bahan elastomer, model induk berukuran 6,33 mm untuk ukuran mesiodistal, 8,02 mm untuk ukuran oklusogingival dan 28,25 mm untuk ukuran interabutment berjumlah 30 buah pada masing-masing teknik dan diperiksa cacat permukaan cetakannya dengan menggunakan kaca pembesar. Setelah itu, hasil dari cacat permukaan diuji menggunakan chi-square. Hasil penelitian menunjukkan tidak ada perbedaan antara teknik pencetakan putty wash one-step dan two-step terhadap cacat permukaan. Dapat disimpulkan, kedua teknik pencetakan putty wash one-step dan two-step dapat digunakan untuk mendapatkan cetakan yang baik.

Disinfection effect of chlorhexidine and castor oil based on usage time on the impact strength of denture base heat polymerized acrylic resin Montahir, Reza Dimansyah Azis; Putri Welda Utami Ritonga
Indonesian Journal of Prosthodontic Vol 5 No 2 (2024): December 2024
Publisher : Indonesia Prosthodontic Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46934/ijp.v5i2.158

Heat polymerized acrylic resin is the most frequently used type of acrylic resin because it has several advantages. Heat polymerized acrylic resin dentures must be disinfected to maintain cleanliness and prevent diseases caused by wearing unclean dentures.. The chemical method is a good and easiest method to do by immersing the dentures in a disinfecting solution. The immersion will clean the surface of the denture and reach the undercut area of the denture. Chlorhexidine and castor oil are ingredients that have substances that can clean dentures, but the content in these materials has an influence on the properties of dentures, one of which is mechanical properties. This study aimed to know the effect of disinfection of chlorhexidine and castor oil based on time of use on the impact strength of heat polymerized acrylic resin denture bases with simulations of 3, 4, and 5 years. The sample was tested using a Charpy Impact Tester to determine the impact strength value. This study showed that there was an effect of castor oil on the impact strength of heat polymerized acrylic resin, but the change still above the minimum value, so this can be suggested as a disinfection material.

Improved retention of ocular prosthesis with modified shallow socket impression technique sinulingga, Andri; Putri Welda Utami Ritonga; Haslinda Z. Tamin
Indonesian Journal of Prosthodontic Vol 5 No 2 (2024): December 2024
Publisher : Indonesia Prosthodontic Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46934/ijp.v4i1.162

ABSTRACT Background: The long-term use of a custom ocular prosthesis that is not replaced could cause a shallow socket. These changes affect the size of the socket. In fact, the custom ocular prosthesis becomes loose. Objectives: Modify the impression by duplicating the old custom ocular prosthesis as a special tray for obtaining an accurate impression of the socket and reducing clinical visits. Case Report:. A 42-year-old woman came to Dental Hospital Universitas Sumatera Utara with the chief complaint that the custom ocular prosthesis was easy to fall off and painful during movement. She has worn the ocular prosthesis for over 30 years, fabricating it five times. However, the last ocular prosthesis lasted for 10 years. The definitive impression was prepared by duplicating the custom ocular prosthesis, and this special tray was modified by adding a rod with a light body material due to its low viscosity. As a result of using the special tray, a more accurate impression can be made due to the small size of the rod. Conclusion: The impression technique with a modified tray from the duplicated old custom ocular prosthesis can record the eye socket in detail and produces a retentive custom ocular prosthesis.

Role of laser power and focus diameter in increasing retention of metal porcelain fixed dentures with short clinical crowns Sutrisman, Andry; Putri Welda Utami Ritonga; Haslinda Z. Tamin
Indonesian Journal of Prosthodontic Vol 5 No 1 (2024): June 2024
Publisher : Indonesia Prosthodontic Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46934/ijp.v5i1.263

ABSTRACTBackground: In teeth with short clinical crowns that will be used as a support for metal porcelain fixed dentures, the problem that often occurs is that the dentures easily fall off after being installed. Surface treatment is one of the efforts to increase retention. Advances in laser technology provide advantages in increasing microstructural and wear resistance on the metal surface of the crown that will be used as abutment teeth.Objectives: In addressing the retention problem of short clinical crowns, modification of tooth preparation, casting, and proper cementation procedures need to be considered. Improving the mechanical properties by surface treatment of the dental crown to be cemented by modifying the strength and focus of the laser diameter can play a role in surface roughness and shear bond strength.Conclusion: The use of lasers to increase microstructural and wear resistance in teeth with short clinical crowns can minimize the failure of making metal porcelain fixed dentures. Keywords: fixed denture, short clinical crown, surface roughness, shear bond strength, laser

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